Color ink jet printer EPSON Stylus Color 900 (Revision )

® SEIJ98006 Notice:  All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.  The contents of this manual are subject to change without notice.  All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.  The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences thereof. EPSON is a registered trademark of SEIKO EPSON CORPORATION.

General Notice: Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their respective owners. EPSON disclaims any and all rights in those marks. Copyright © 1996 SEIKO EPSON CORPORATION. Printed in Japan. PRECAUTIONS

Precautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment.

DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by DANGER Headings.

WARNING Signals a precaution which, if ignored, could result in damage to equipment.

The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.

DANGER

1. ALWAYS DISCONNECT THE PRODUCT FROM THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURES. 2. NOWORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN THEIR LINE OF WORK. 3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

WARNING

1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN. 2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE. 3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS. 4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI- STATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS. 5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY. PREFACE

This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of Stylus Color 900. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page. The chapters are organized as follows:

CHAPTER 1. PRODUCT DESCRIPTIONS Provides a general overview and specifications of the product.

CHAPTER 2. OPERATING PRINCIPLES Describes the theory of electrical and mechanical operations of the product. product. CHAPTER 3. TROUBLESHOOTING Provides the step-by-step procedures for troubleshooting.

CHAPTER 4. DISASSEMBLY AND ASSEMBLY Describes the step-by-step procedures for disassemblin and assembling the

CHAPTER 5. ADJUSTMENTS Provides Epson-approved methods for adjustment.

CHAPTER 6. MAINTENANCE Provides preventive maintenance procedures and the lists of Epson-approved lubricants and adhesives required for servicing the product.

APPENDIX Provides the following additional information for reference: • Connector pin assignments • Electric circuit boards components layout • Exploded diagram • Electrical circuit boards schematics Revision Status

Revision Issued Date Description

A January 06, 1999 First Release The following items have been revised: •Page 105/Table 4-1: Some contents have been changed. •Figure 4-4, Figure 4-17: Contents of the figures have been corrected. •Figure 4-13, 4-15, 4-16, 4-24, 4-25, 4-39, 4-40, 4-41: February 15, 1999 Figure titles have been corrected. •Figure 4-14: Figure title and the contents of the figure have been corrected. Pages from 140 through 145: Head Angular Adjustment procedure has been changed due to overall review of the section. The whole book is revised. The actual change is made on the following points: • Chapter 4 / Page 115 / Figure 4-18 and step 3 C March 4, 1999 • Chapter 5 / Page 135 to 141and Page 148. The rest of the pages in this chapter only changed in page numbers. • Chapter 6 and 7 changed in page numbers only. Contents

Product Description IEEE 1284.4 Protocol ...... 30 Control Panel Operation ...... 31 Features ...... 10 Indicators (LEDs) ...... 31 Specifications ...... 11 Panel Functions ...... 32 Printing Specifications ...... 11 Printer Setting Mode ...... 32 Options and Consumable Products ...... 14 Special Setting Mode ...... 34 Paper Specifications ...... 15 Printer Condition and Panel Status ...... 35 Cut Sheet ...... 15 Error Status ...... 36 Transparency, Glossy Paper ...... 15 Ink Out ...... 36 Envelope ...... 15 Paper Out ...... 36 Index Card ...... 15 Paper Jam ...... 36 Self Adhesive Sheets ...... 15 No Ink Cartridge ...... 36 Photo Paper ...... 16 Maintenance Request ...... 36 Photo Stickers ...... 16 Fatal Errors ...... 36 Printable Area ...... 17 Ink Cartridge Specifications ...... 19 Printer Initialization ...... 37 Black Ink Cartridge ...... 19 Component Layout ...... 38 Color Ink Cartridge ...... 20 Printer Mechanism ...... 38 Electrical Specifications ...... 21 C265 Main Board ...... 39 Environmental Condition ...... 21 C265 PSB/PSE Board ...... 41 Reliability ...... 22 C265 PNL Board ...... 42 Safety Approvals ...... 22 C265 Relay Board ...... 42 Acoustic Noise ...... 22 CE Marking (220 ~ 240 version) ...... 22 Operating Principles Physical Specifications ...... 22 Interface ...... 23 Overview ...... 44 Parallel Interface (Forward Channel) ...... 23 Printer Mechanism Operating Principles ...... 44 Parallel Interface (Reverse Channel) ...... 26 Carriage Mechanism ...... 46 Mac Serial Interface ...... 28 Printing Mechanism ...... 48 USB Interface ...... 29 Paper Load Mechanism ...... 49 Printer Language and Emulation ...... 29 Paper Feed Mechanism ...... 51 Prevention Hosts from Data Transfer time-out ...... 29 Pump/ASF Switch Mechanism ...... 52 Auto Interface Selection ...... 29 Pump / Carriage Lock / Head Cleaner Mechanism ...... 54 Electrical Circuit Operation Principles ...... 56 ASF Sensor Removal ...... 121 C265 PSB/PSE Power Supply Board ...... 56 CRHP Sensor Removal ...... 122 C265Main Board ...... 59 PE Sensor Removal ...... 122 CR Motor Driver Circuit ...... 67 Encoder Belt Sensor Removal ...... 123 PF Motor Driver Circuit ...... 69 Carriage Unit Removal ...... 124 Pump/ASF Motor Driver Circuit ...... 71 Pump Unit Removal ...... 125 Printhead Driver Circuit ...... 72 Paper Eject Frame Removal ...... 126 Cooling Fan Driver Circuit ...... 74 Paper Eject Roller Removal ...... 126 ASF Solenoid Driver Circuit ...... 76 Platen Removal ...... 127 EEPROM Control Driver Circuit ...... 77 PF Roller Removal ...... 128

Troubleshooting Adjustment Overview ...... 79 Overview ...... 131 Troubleshooting with LED Error Indications ...... 80 Conditions for Each Adjustment ...... 131 Remedies for Paper Out Error ...... 81 Adjustments ...... 134 Remedies for the Paper Jam Error ...... 83 Preliminary Operation ...... 134 Remedies for No I/C and Ink Out Errors ...... 85 Market Destination Check ...... 136 Remedies for the Maintenance Error ...... 87 Head Actuator Voltage Input ...... 137 Remedies for Fatal Error ...... 88 Head Angular Adjustment ...... 141 Isolating the Faulty Part on the Power Supply Board ...... 90 Bi-Directional Adjustment ...... 148 Isolating the Faulty Part according to the Phenomenon ...... 92 Printhead Cleaning Using the Program ...... 153 Initial Ink Charge ...... 154 Disassembly and Assembly Indication of the Counter Value for the Waste Ink Pad ...... 155 Fan Check ...... 157 Overview ...... 102 Paper Gap Adjustment ...... 158 Precautions for Disassembling the Printer ...... 102 Disassembly Procedures ...... 104 Maintenance Upper Case and Control Panel Removal ...... 106 Printer Mechanism Removal ...... 107 Overview ...... 162 C265 Main Board Unit Removal ...... 108 Maintenance ...... 162 Relay Board and Cooling Fan Removal ...... 109 Cleaning the Printhead ...... 163 Shield Plate on the C265 Main Board Removal ...... 110 Maintenance Request Error ...... 164 C265 PSB/PSE Board Removal ...... 111 Lubrication and Adhesion ...... 165 Printer Mechanism Disassembly ...... 112 Lubricating the Carriage Guide Shaft ...... 166 Printhead Removal ...... 112 CR Motor Removal ...... 114 Appendix PF Motor Removal ...... 115 Pump/ASF Motor and Solenoid Removal ...... 116 Connector Summary ...... 172 ASF Unit Removal ...... 116 EEPROM ADDRESS MAP ...... 176 Component Layout ...... 180 Parts List ...... 184 Exploded Diagrams ...... 187 Circuit Diagrams ...... 195 

PRODUCT DESCRIPTION Revision C Revision Figure 1-1. Stylus 900 Color 1-1. Stylus Figure ) 2 - 10 envelopes - Holds fIlms transparency 30 Holds - slot I/ card 3 I/F 1 optional and Built-in 1.8 Mbps) to approximately I/F (up - Mac serial 1 device) level (lEEE-1284 I/F parallel Bi-directional - USB - 2 Type-B card I/F level slot - Optional 5 LQ , fonts 4 scaleable version) (Standard tables 13 character (NLSP version) tables 37 character High color print quality: print color High printing dpi (V) x720 () 1440 - (YMCK) inks color 4 with Printing - Microweave New and Traditional - variable using rendering in color - Imprevement feeder: auto sheet Built-in g/ (64 100 cut-sheets - Holds

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Features 10     1.1 FEATURES of ink in EPSON’sThe Stylus COLOR advanced lines the latest 900 is features. following the offering and printers jet   Revision C Revision CRS 28.5 IPS 28.5 342 CPS 342 CPS 487 LQ speed LQ 2976 Available dot Available 96 137 Table 1-1. 1-1. Table 1-2. Table Printable columns Printable EPSON Remote command EPSON Remote IBM X24E emulation 8.26 inch Printable area 180 dpi180 dpi 360 inch 8.26 1488 IPS 28.5 720 dpi720 inch 8.26 5952 IPS 20 Character pitch Character resolution Horizontal Print Speed and Printable Columns for Character Mode Character for Columns Printable Speed and Print 12 CPI (Elite) 12 condensed) (Pica CPI 17 15 CPI15 20 CPI (EIitecondensed) 160 120 570 CPS CPS 428 10 CPI (Pica)10 80 CPS 285 Print direction:Print columns and Printable speed Print seeking logic with Bi-direction code:Control code graphics raster ESC/P2 and expanded Print Speed and Printable columns for Raster Graphics Mode Graphics Raster columns for Speed and Printable Print    Row (Yellow) E Row #96 #95 #94 #93 #3 #2 #1 Row (Cyan) Row #96 #95 #94 #93 #3 #2 #1 ow C (Magenta) 180 dpi Color=96 nozzles 3 (Cyan, Magenta, x 3 (Cyan, Magenta, nozzles Color=96 Yellow) configuration.) the nozzle 1-2 for Figure (See 360 dpi Figure 1-2. 1-2. Nozzle configuration Figure #3 #2 #1 #95 #93 #96 #94 R ow 2) B (Black R ow 1) A (Black #1 #3 #2 #93 #96 #95 #94 Print method:Print configuration:Nozzle x 2 (96 staggered) nozzles Monochrome=192 On demand jet ink

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Specifications 11 1.2 Specifications Printing 1.2.1 Specifications   Revision C Revision (6.94 inch/second) (6.94 inch Continuous feed feed = Continuous mm/second 176.3

EPSON Roman normal EPSON Roman bold EPSON Roman italic EPSON Roman italic bold EPSON Roman available and tables character the lists which 1-3 Table See typefaces.

EPSON Roman. EPSON RomanSerifEPSON Sans EPSON CourierEPSON PrestigeEPSON Script Proportional 15CPI, CPI, 12 CPI, 10 Proportional 15CPI, CPI, 12 CPI, 10 15CPI CPI, 12 CPI, 10 15CPI CPI, 12 CPI, 10 15CPI CPI, 12 CPI, 10 EPSON RomanSerifEPSON Sans TEPSON Roman HSerif EPSON Sans pt.) 2 (every 32 pt. - 8 pt., pt., 10.5 pt.) 2 (every 32 pt. - 8 pt., pt., 10.5 pt.) 2 (every 32 pt. - 8 pt., pt., 10.5 pt.) 2 (every 32 pt. - 8 pt., pt., 10.5 Typeface : map LQ Bit font Scaleable method:Feeding spacing:Line ASF with feed Friction at 1/360 programable or 1/8 inch 1/6 inch, Paper path:Paper Feed speed: Cut-sheet = inch feed 192/360 out) Front entry, (Top ASF 116 ms * example of as the following has 4 variations Typeface Each data buffer:Input 256 KB       Italic tableItalic 850 (Multilingual)PC PC 861 (Icelandic)PC 865(Nordic) Europe) Standard 437(US, PC BRASCII 1 Latin ISO PC 863(Canadian-French) ISO 8859-15 PC 860 (Portuguese) Abicomp tableItalic PC850PC855 8 Roman PC 858 PC861PC869 PC4378859-7 ISO PC774 PC852PC866 LAT PC857PC APTEC PC865 PC437 Greek 1T Latin lSO Hebrew7* MAZOWIAAbicomp PC866 UKR PC853 1ISO Latin Bulgaria Estonia PC860 PC708 MJK Code PC866 PC AR864 Hebrew8* BRASCII PC 858 ISO 8859-2 PC720 PC862* Roman 8 lSO 8859-15

mode.

Character tables:Character tables) character (13 version: Standard sets character and 14 international Legal tables) (36 character NLSP version: * setting Default the in be selected not can tables character These

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Specifications 12  Revision C Revision Scaleable font Scaleable EPSON Roman Serif EPSON Sans EPSON Roman H Serif EPSON Sans supported Not EPSON Roman Serif EPSON Sans supported Not Bit map font map Bit EPSON Roman Serif EPSON Sans EPSON Courier EPSON Prestige EPSON Script EPSON Roman Serif EPSON Sans EPSON Roman Serif EPSON Sans EPSON Courier EPSON Prestige EPSON Script EPSON Roman EPSON Courier PC 437 (US Standard Europe) (US Standard PC 437 (Multilingual) 850 PC (Canadian-French) 863 PC BRASCII 8 Roman PC 858 Europe) Standard PC 437(US 860(Portuguese) PC PC 865(Nordic)BRASCIl Roman8 PC 858 (Arabic) PC 708 (Arabic) PC AR864 PC 852 (East Europe) (East PC 852 (Cyrillic) 855 PC (Russian) 866 PC (Poland) MAZOWIA (Latin/Greek) 8859-7 lSO (Bulgarian) Bulgaria Estonia LAT 866 PC Character Tables Table 1-3. Character Tables and Available Typefaces Available and Tables Character 1-3. Table

Italic table Italic (Portuguese) PC 860 PC 861 (Icelandic) PC 865 (Nordic) Abicomp Latin1 lSO 8859-15 ISO table Italic PC 850 (Multilingual) PC 861 (Icelandic) Abicomp lSOLatin1 8859-15 ISO PC437Greek (Turkish) PC 853 (Turkish) PC 857 (Greek) PC 869 (CSFR) MJK Code lSOLatin 1T (Turkish) 74 PC7 2) Latin (lSO 8859-2 1SO PC 866 UKR (Arabic) PC APTEC (Arabic) PC 720 Hebrew7* 8* Hebrew (Hebrew)* PC862

NLSP version NLSP Standard version Standard mode.

* Not mentioned in the User’ Guide. These character tables can not select in the default setting setting the default in select can not tables These character Guide. User’s the in mentioned * Not

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Specifications 13 Revision C Revision Codes S041059 / S041025 / S041059 S041026 / S041061 S041048 / S041067 S041121 S041106 S041148 S041071 S041107 S041064 S041141 S041177 S041176 S041154 Items Table 1-6. Table EPSON1-6. Media Special EPSON 360 dpi Ink Jet Paper (Letter) Paper Jet Ink dpi EPSON 360 (Letter) Paper Jet Ink Quality EPSON Photo (A6) Card Jet Ink Quality EPSON Photo S041028 / S041060 S041029 / S041062 10”) x (8 Card Jet Ink Quality EPSON Photo envelopes) (A6) (with Card Note Jet EPSON Ink S041054 S041122 envelops)(with 10”) x (8 Cards Greeting Jet EPSON Ink S041147 S041149 (Letter) Film Glossy Quality EPSON Photo (A4) Transparencies Jet EPSON Ink S041172 (A4) Paper EPSON Photo x 6”) (4 Paper EPSON Photo S041063 (A6)16 Stickers EPSON Photo mm) x 594 (210 Paper Photo EPSON Panoramic S041140 (Letter) Paper Transfer Peel Cool EPSON Iron-On S041145 S041134 S041155 / S041153 S041144 EPSON 360 dpi Ink Jet Paper (A4) Paper Jet Ink dpi EPSON 360 (A4) Paper Jet Ink Quality EPSON Photo (Legal) Paper Jet Ink Quality EPSON Photo 8”) x (5 Card Jet Ink Quality EPSON Photo (A4) Sheet Adhesive Self Quality EPSON Photo envelops) 8”) (with x (5 Cards Greeting Jet EPSON Ink (A4) Film Glossy Quality EPSON Photo (A6) Film Glossy Quality EPSON Photo (Letter) Transparencies Jet EPSON Ink (Letter) Paper EPSON Photo (A4) Cards Paper EPSON Photo 4 (A6) Stickers EPSON Photo (A4) Paper Transfer Peel Cool EPSON Iron-On / ∗ ∗ ∗ ∗ C83604 C83606 C82308 C82363 / / T005 Codes Codes ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ / ∗ / ∗ C80310 C82315 C82362 C82364 C83602 C83605 C83603 C83623 Items

) is a substitute for the last digit of the product the product of digit last for the ) is a substitute Items ∗ Color Ink Cartridge Ink Color Black Ink Cartridge Ink Black T003 Table 1-4. Options Available for Stylus 900 Stylus Color for Available 1-4. Options Table

The ( The asterisk by country. which varies number, country. by varies media special of availability The Table 1-5. Ink Cartridge Available for Stylus Color 900 Color for Stylus Available Cartridge Table 1-5. Ink 32KB Serial I/F card Serial 32KB C82307 32KB Parallel Interface Card Interface Parallel 32KB card I/F Coax card I/F Twin-ax CardInterface LocalTalk Card Interface B Ethernet Type CardInterface Parallel B Bi-directional Type D-SUB 25-pin from (shielded) Cable Interface Parallel (printer) Series 57 Amphenol 36-pin to (computer) (computer) D-SUB from 25-pin Cable C82345 Interface Serial (printer) D-SUB 25-pin to (computer) 9-pin D-SUB from Cable Interface Serial C82312 (printer) D-SUB 25-pin to C82314 A 4-pin Series from (shielded) Cable Interface USB is cable (This (printer) B 4-pin Series to (computer) locations.) all in supplied not

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Specifications 14

1.2.2 Options 1.2.2 and Consumable Products NOTE: NOTE: Revision C Revision (20Ib.) 2 (12Ib.) - 75g/m (12Ib.) 2 Less 0.23 mmLess than (0.0091”) : Thickness:Size: (0.004”) mm 0.11 - mm (0.003”) 0.08 No.10:DL:C6:5 x 8”: 1/8”)] mm (4 104.8 Length x 1/2”) (9 mm 241 [Width Thickness: x Length 220 mm [Width 110 mm (8.7”) (4.3”)] Weight:(0.02”) mm 0.52 - mm (0.006”) 0.16 x Length 162 mm [Width 114 mm (6.4”) (4.5”)] x Length 220 mm [Width 132 mm (8.7”) (5.2”)] 45g/m Size: card: A6 Index card: 5 x 8” Index x Length 203 mm 127 mm (8.0”)] x Length [Width (5.0”) 148 mm105 mm (5.8”)] [Width (4.1”) 203 mm x (8.0”)] 127 mmLength (5.0”) card:[Width 10 x 8” Index Thickness Size A4: Types:Paper media EPSON special x Length 210 mm [Width 297 mm (8.3”) (11.7”)] Quality: Airmail paper, Plain Bond paper, Paper Types:Paper media EPSON special 1.2.3.3 Envelope     1.2.3.4 Index Card   Sheets Adhesive Self 1.2.3.5    NOTES: 1. only. temperatures normal at envelope on Print 2. horizontal. envelope of the side the longer Place  (24Ib.) 2 (17Ib.) - 90g/m (17Ib.) 2 (0.38”).

Print on transparency at normal temperatures only. temperatures at normal on transparency Print Paper Types:Paper EPSONmedia paper, Plain special paper, Bond Paper Handling:Paper mm 9.5 more in than reverse Do not feed paper Size: A4:A5:Letter:B5: mm (11.7”)] 297 Length x mm (8.3”) 210 [Width Legal: mm (11.0”)] 279 Length x mm (8.5”) 216 mm (8.3”)] [Width 210 Length x mm (5.8”) 148 [Width Letter:Half Executive: 215.9 x mm mm Length (8.5”)] (5.5”) 139.7 [Width mm (10.1”)] 257 Length mm (14.0”)] x 356 Length mm (7.2”) x 182 [Width mm (8.5”) 216 [Width 266.7mm(10.5”)] x mmLength (7.25”) Thickness:184.2 [Width - 0.11 mm mm(0.004”) (0.003”) 0.08 Weight: 64g/m Size A4:Letter:A6:Thickness: mm (11.0”)] 279 Length x mm (8.5”) 216 mm (11.7”)] [Width 297 Length x mm (8.3”) 210 [Width mm - 0.085 (0.0033”) mm (0.003”) 0.075 Types:Paper media EPSON special mm (5.8”)] 148 Length x mm (4.1”) 105 [Width

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Specifications 15  1.2.3 Paper Specifications 1.2.3 paper handling including specifications paper describes section This area. printable and  Sheet Cut 1.2.3.1    1.2.3.2 Transparency, Glossy Paper    NOTE: Revision C Revision [Width 105 mm (4.1”) x Length 148 mm (5.8”)] 148 Length x mm (4.1”) 105 [Width Paper Types:Paper media EPSON special Size: A4:Letter:6”:x 4 Panoramic: Types:Paper mm (11.0”)] 279 Length x mm (8.5”) 216 mm (11.7”)] [Width 297 Length x mm (8.3”) 210 [Width mm (23.4”)] 594 Length x mm (8.3”) 210 [Width 152 mm (6”)] Length x mm (4”) 102 [Width media EPSON special Size: 4 A6 with or frames: 16

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Specifications 16  1.2.3.6 Photo Paper 1.2.3.6   Stickers Photo 1.2.3.7  3 3 3 3 3 3 3

Revision C Revision (Minimum) Bottom Margin Bottom 14 mm 14 mm (0.54”) * (0.12”) 3 mm 14 mm (0.54”) * (0.12”) 3 mm 14 mm 14 mm (0.54”) * (0.12”) 3 mm 14 mm (0.54”) * (0.12”) 3 mm 14 mm (0.54”) * (0.12”) 3 mm 14 mm (0.54”) * (0.12”) 3 mm 14 mm 14 mm (0.54”) * (0.12”) 3 mm (Minimum) Top Margin Top 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) 1 2 1 2 Table 1-7. 1-7. Table (Minimum) Right Margin Right 3 mm 3 mm (0.12”)* 3 mm (0.12”)* 3 mm 3 mm (0.12”) 9 mm (0.35”)* 3 mm (0.12”) 9 mm (0.35”)* 3 mm (0.12”) (Minimum) Left Margin 3 mm (0.12”) 3 mm (0.12”) 3 mm (0.12”) 3 mm Size Paper Paper

Minimum margin for Raster Graphics Mode Mode / Character Raster Graphics margin Minimum for mm. 14 remains margin bottom minimum the Otherwise, command. the using by guaranteed a not is mm 3 of margin bottom the with area printing extra the Note area. A4(0.12”) 3 mm (0.12”)mm 3 (0.12”) mm 3 A5 LetterB5 (0.12”) 3 mm Legal Letter Half (0.12”) 3 mm Executive(0.12”) 3 mm (0.12”)mm 3 (0.12”) mm 3

*1: mode Graphics Raster For *2: For Character mode *3: defined is dimension paper when 3 mm to reduced is margin bottom minimum The M : Margine RM: TM Right L : e ft MWidth B aLength M Top M rg argine in : e PW Paper : Paper PL: B tto m M a rg in e PL RM BM TM PW Printable area Printable Figure 1-3. Printable Area for Cut Sheets Cut for Area Printable 1-3. Figure Cut Sheet Cut sheets. for cut area the printable 1-7 for 1-3 Table and See Figure LM

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Specifications 17 1.2.4 Area Printable 1.2.4  Revision C Revision TM BM (Minimum) Bottom Margin Bottom 14 mm (0.54”) mm 14 (0.54”) mm 14 RM (Minimum) Top Margin 3 mm (0.12”) mm 3 (0.12”) mm 3 Printable A re a (Minimum) Right Margin Right 7 mm (0.28”) 7 mm (0.28”) 7 mm LM Figure 1-4. Printable Area for Envelopes for Area Printable 1-4. Figure (Minimum) Left Margin Table 1-8. Envelopes 1-8. Margin Minimum for Table 3 mm (0.12”) 3 mm (0.12”) 3 mm Size Paper Paper #10 (0.12”) 3 mm (1.10”) 28 mm (0.12”) mm 3 (0.54”) mm 14 C6 (0.12”) 3 mm (0.12”) 3 mm (0.12”) mm 3 (0.54”) mm 14 DL 5 x8 EnvelopeSee Table 1-8 and Figure 1-4 1-4 show the minimum which 1-8 and Figure Table EnvelopeSee respectively. for envelopes, area and printable margin

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Specifications 18  65.9 m m (R ib area) ib (R m m 65.9

Revision C Revision

41.8 mm 41.8 74mm m 67.4 27.4 mm area) 27.4 (Rib 28.9 mm 28.9 Figure 1-5. Black Ink Cartridge Appearance BlackCartridge Ink 1-5. Figure C and ° C) C) ° ° C) ° within a month at 40 within C(within 120 hours at 60 at hours 120 C(within C(within a month at 40 at month a C(within C(within a month at 40 at month a C(within ° ° ° C ~ 60 C ~ 40 C ~ 40 ° ° ° Pattern at 360 dpi) Pattern Transit: -30 Packing storage:Packing -30 Storage: -20 Storage: Dimensions:(H) mm 41.8 x (D) mm x 67.4 () mm 28.9 Type:Color:Capacity: Print Letter 10561 (ISO/IEC A4 / pages 1200 cartridge ink Exclusive Black Ink life:Ink temperature: Storage date production from indicated years 2

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Specifications 19  1.2.5 Ink Cartridge Specifications Ink 1.2.5 Ink Cartridge Black 1.2.5.1      65.9 m m (R ib area) ib (R m m 65.9

Revision C Revision

41.8 mm 41.8 74mm m 67.4 52.5 mm area) 52.5 (Rib Figure 1-6. Ink Cartridge 1-6. Color Figure 54 m m C and C and ° C) C) ° C) ° ° within a at 40 month within C (within 120 hours 120 hours at 60 C (within C (within a at 40 C (within month C(within a month at 40 at month a C(within ° ° °

C. To use ink that is frozen, let it defrost defrost it let frozen, is that ink To use C. ° C ~ 60 C ~ 40 C ~ 40 ° ° ° color) Transit: -30 Packing storage:Packing -30 Storage: -20 Storage: Dimensions:(H) mm 41.8 x (D) mm x 67.4 (W) mm 54.0 Type:Color: Capacity:Print 360 each 5 X 530 pages / A4 (at dpi, duty cartridge ink Exclusive Cyan, Yellow Magenta, Ink life:Ink temperature: Storage date production from indicated years 2 -4 below be frozen will Ink at room temperature. 3 hours at least for

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Specifications 20  1.2.5.2 Color Ink Cartridge    3.   NOTES 1. item. is a consumable It cartridge. the Do not refill 2. expired. has life whose ink cartridge Do not the used ink Revision C Revision C *2 ° C (See Figure 1-7.) 1-7.) Figure C (See ° ( F ) ( C ) 95 C ° 35 C ° 80 1-7.) (See Figure G uaranteed A re a 50 Non-operating = 5% ~ 85% RH *1 *2 Non-operating Non-operating = 2G, within 2 ms = 2G, within *1 Non-operating = 0.50G *1 Non-operating 120 hours 60 120 hours at Non-operating = -20 to 60 Non-operating at 40 1 month 10 27 80% 55% 20% (% R H ) Humidity Figure 1-7. Temperature / Humidity Range of Humidity / 1-7. Temperature Figure Humidity: = 20% ~ 80% Operating RH *2 to shock:Resistance 1 ms = 1G, within Operating Resistance to vibration:Resistance = 0.15G (Operating) Operating Temperature: = 10 35 to Operating container shipment a With *1: condensation Without *2:    1.2.7 Environmental Condition  0.5A)

240V 264V ∼ 132V ∼ 60.5 Hz 60.5Hz ∼ ∼ ∼ 60Hz 60 Hz 60 ∼ ∼ Energy Star Star compliant Energy (between AC line and chassis, DC 500 V) DC and chassis, line AC (between 1 second (between and AC line chassis) (between 1 second Energy Star Star compliant Energy (between AC line and chassis, DC500V) and chassis, line AC (between 1 minute (between AC line ACand chassis) (between line 1 minute 240V version] ∼ Rated voltage:Rated range: voltage Input AC99 AC120V Rated frequency range: frequency Rated 50 Input frequency range: frequency Input 49.5 Rated current:Rated 0.4A (Maximum Power Power consumption: pattern) Letter 10561 (ISO/IEC Approx.18W Insulation Resistance:Insulation 10 M ohms min. Dielectric strength:Dielectric AC1000 V 1 minute AC1200 or rms. Vrms. Rated voltage:Rated AC220V Input voltage range: voltage Input AC198 range: frequency Rated 50 Input frequency range: frequency Input 49.5 Rated current: Rated Power consumption: pattern) Letter 10561 (ISO/IEC Approx.18W 0.3A) (Maximum A 0.2 Insulation Resistance:Insulation 10M ohms min. Dielectric strength:Dielectric V rms. AC1500

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Specifications 21 1.2.6 Electrical Specifications Electrical 1.2.6 version] [120V         [220         Revision C Revision IEC801-2 IEC801-3 IEC801-4 EN61000-3-2 EN61000-3-3 EN50082-1 240 V version) V 240 ∼ Low Voltage Directive 73/23/EEC: Directive Low Voltage EN60950 89/336/EEC:EMC Directive B EN55022 Class Weight:Dimensions: 647 mm (W) x 296 mm (D) x 325 mm (H) 8.4 Kg 1.2.11 CE Marking (220 1.2.11   Specifications Physical 1.2.12   CSA22.2 No.950 CSA22.2 7779) CSA C108.8 class B class C108.8 CSA AS/NZS 3548 class B class 3548 AS/NZS 240V version] ∼ Total print volume: print Total Letter) pages (A4, 75,000 life: Printhead dots/nozzle million 4000 standard:Safety UL1950 Level: to ISO 47 (According (A) dB Approximately EMI: B B class FCC part subpart 15 Safety standard:Safety EMI: EN 60950 (VDE) B class Pub.22) (CISPR EN55022

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Specifications 22 1.2.8 Reliability 1.2.8   Approvals Safety 1.2.9 version] [120V  Acoustic 1.2.10 Noise   [220   data byte +1 byte data

Revision C Revision tnext tnbusy ta c treply thold ts tb tbusy data byte n byte data tsetup tready Figure 1-8. Data Transmission Timing Transmission Data 1-8. Figure Printer hardware error (fatal error) (fatal error hardware Printer error Out Paper error Jam Paper Ink Out error BUSY DATA     STROBE -ACKNLG - The /ERROR signal is The /ERROR is has LOW error signal when one of the following occurred: The PE signal is at a high level during Paper Paper Out error. during level is at The PE a high signal timing. transmission 1-9 which the show data and Table 1-8 See Figure During data entry (see Data transmission timing) (see Data transmission entry data During is full data buffer When the input hardware during at LOWis or signal level /INIT While initialization. signal). /ERROR (See condition error printer a During selected. is not interface When the parallel Transmission mode:Transmission mode IEEE-1284 compatibility parallel, 8 bit Synchronization:Handshaking: By /STROBE pulse level:Signal BY BUSY and /ACKLG signal connector:Adaptable equivalent or (amphenol) 57-30360 level TTL compatible     

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Interface 23 1.3 Interface 8-bit bi-directional USB, with equipped is 900 Color EPSON Stylus The Type-B an optional for and a card slot interface serial interface, parallel interface. Interface (Forward Parallel 1.3.1 Channel)      or PE low either/ERROR setting is highThe BUSY before set signal state. an inactive to return signals these all until high held and high, is The BUSY HIGH: signal to Ω COndition VIH = 2.0V

Revision C Revision = VOL 0.4V --- 2.0V 50pF 12mA 0.32mA Maximum ------0.5V Minimum (IEEE-1284 level 1 level device) (IEEE-1284 Table 1-11. Signal level TTL Compatible level for Signal Table 1-11. CI IIL --- 12mA 0.8V = VIL IIH VIL 0.8V --- CO --- 50pF IOL VIH IOH* --- 0.32mA 2.4V VOH = VOL* VOH* --- 5.5V

Parameters off. is turned when the printer 2.0 V or less on. turned is 3.0 V or more when the printer K 7.5 to equivalent impedance an provides receiver The ground.

* A LOW logic level on the Logic H signal is is as follows: H Logic on the signal * A LOW level logic and signals assignment pin connector the shows which 1-12 Table See interface. parallel the of channel forward the for ------120ns Maximum Typical Time of Tack Time Typical 3 us 0 0 0 --- 500ns Minimum Table 1-10. Time of Tack Table Typical 1-10. Table 1-9. Data Transmission Timing Transmission 1-9. Table Data tstb 500ns --- tack 500ns 10us tnext 0 --- thold tbusy --- 500ns tt-in** --- 200ns treply tt-out* tsetup 500ns --- tready tnbusy Parameter

tt-out shows the rise and fall time of every output signal. output every of time and fall rise the shows tt-out signal. of every input time and rise fall the shows tt-in 1-10. shown in Table tack is time of Typical Parallel Interface Mode Interface Parallel speed Normal High speed us 1

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Interface 24 NOTE: Revision C Revision Functional Description Functional The DATA0 through DATA7 signals represent data bits 0 to 7, respectively. Each Each respectively. 7, 0 to bits data represent signals DATA7 through DATA0 The 0. logical is data when level low 1 and logical is data when level at high is signal data. accept again can printer the that indicating pulse negative a is signal This error. paper-out indicates signal A high used. Not to printer the causes line this on signal low or a pulse negative a of edge falling The initialize. Minimum 50 us pulseis necessary. condition. error printer indicates signal A low resistor. ohm 3.9K +5V via to up Pulled Chassis GND. connected. Not I I O O O O ------In/Out Table 1-12. Parallel I/F Forward Channel Forward I/F Parallel 1-12. Table 20 22 24 26 28 28 30 29 ------Return GND Pin Signal Name Signal GND ------GND. Signal DATA0 DATA2 DATA4 DATA6 /ACKNLG PE /AFXT /ERROR H Logic GND Chassis NC 3DATA121 2 4 5DATA323 6 7DATA525 8 9DATA727 1 /STROBE 19 I pulse. of this edge falling at the performed is data of Read-in pulse. strobe The 10 1112 BUSY1314 SLCT31 29 /INIT32 O 2836 data. receive cannot printer the that indicates signal high A 18 /SLIN O35 30 on. powered is printer the when level high at Always 17 +5V I 30 I ---- used. Not Oresistor. ohm 3.9K +5V via to up Pulled 15,34 19-30 16,33, Pin No.

*: In and Out refers to the direction of the signal as viewed from the printer. the from viewed as signal the of direction to the refers Out and In *:

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Interface 25 Revision C Revision [00H] [5DH] [00H] MFG:EPSON; CMD:ESCPL2,PRPXL,BDC; MDL:Stylus[SP]COLOR[SP[900; CLS:PRINTER; DES:EPSON[SP]Stylus[SP]COLOR[SP]900; When IEEE1284.4 When IEEE1284.4 disabled; is

NOTES: of zero. value a denotes hexadecimal 1. [00H] setting. EEPROMthe on depend DES value and value MDL 2. setting. IEEE1284.4 the on depends CMD value 3. channel reverse for assignment pin shows which 1-13 Table See (See forward channel.) forward (See Transfer. 00H:Request Nibble Mode Reverse Channel Transfer. Channel Reverse Mode Nibble 00H:Request Channel Rev Mode Nibble using ID device 04H:Request [00H] [60H] [00H] MFG:EPSON; CMD:ESCPL2,PRPXL,BDC,D4; MDL:Stylus[SP]COLOR[SP]900; CLS:PRINTER; DES:EPSON[SP]Stylus[SP]COLOR[SP]900; Transmission mode:Transmission mode nibble IEEE-1284 connector:Adaptable channel. forward See the Synchronization:Handshaking: specification IEEE-1284 the to Refer timing: trans. Data specification IEEE-1284 the to Refer specification IEEE-1284 the to Refer level:Signal device 1 level IEEE-1284 Extensibility request: Extensibility request extensibility the when affirmatively responds printer The follows; 04H,as or 00H are values Device ID: Device request. upon ID string device following sends The printer is When IEEE1284.4 enabled;

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Interface 26 1.3.2 Parallel Interface (Reverse Channel) (Reverse Interface Parallel 1.3.2         Revision C Revision Functional Description Functional The DATA0 through DATA7 signals represent data bits 0 to7, to7, 0 bits data represent signals DATA7 through DATA0 The and 1 logical is data when level at high is signal Each respectively. transfer to used are signals These 0. logical is data when level low printer. the to values request extensibility 1284 the 7. 3 or bit data transfer channel reverse and signal busy Printer transfer channel reverse and signal request data Acknowledge 6. 2 or bit data 5. 1 or bit data transfer channel reverse and signal X-flag used. Not Signal Active 1284 resister. ohm 3.3K via +5V to up Pulled GND. Signal I I I O O O --- In/Out 29 28 30 30 ------Pin 20-27 Return GNDReturn Table 1-13. Pin Assignment For Reverse Channel Reverse For Assignment Pin 1-13. Table Signal Name Signal Data0-7 Bit-3,7 Data PtrBusy, DataBit-1,5 Xflag, /INIT 1284-Active +5V GND 1 HostClk 19 I Host clock signal. 11 13 31 36 35 10 PrtClk12 DataBit-2,6 Req, AckData 14 HostBusy 2832 DataBit-0,4 /DataAvail, 18 28 O Logic-H17 29 O GND Chassis 30 signal. clock Printer O 4. 0 or bit data transfer channel reverse and I signal available Data ---- Host busy signal. ---- O --- resister. ohm 3.9K via +5V to up Pulled GND. Chassis 2-9 15,34 NC ------connected. Not Pin No. Pin 16,33, 9-30 16,33,

* In/Out refers to the direction of signal flow from the printer’s point of view. point printer’s the from flow signal of direction the to refers In/Out *

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Interface 27 DTR

Revision C Revision ON X-ON/X-OFF Send X-ON code Send Buffer More than 5120 bytes 5120 than More Table 1-15. X-On/X-Off and DTR Protocol DTR and X-On/X-Off 1-15. Table State Busy bytes 3072 than Less codeX-OFF Send OFF Ready X-ON/X-OFF, DTR protocol:See Table 1-15. Table protocol:See DTR X-ON/X-OFF,  Description Clear To Send To Clear Ground) (Signal Balanced Transmit Data (+) Balanced ReceiveData (+) I I I O I/O Data Bit = 8 bit Bit = No bit Parity parity Bit = Stop 1 bit Table 1-14. Pin Assignment Pin 1-14. Table SG CTS TXD+ RXD+ Name Signal Signal 1 SCLK O signal clock Synchronous 2 34 5 TXD-6 7 RXD- O8 (-) Data Transmit DTR I (-) Data Receive O Ready Terminal Data Pin No. Pin Standard:Synchronization: Rate:Bit Synchronous RS-423 on Based Handshaking: Format:Word Protocol DTR X-ON/X-OFF, 1.8 Mbps Approximately bit 1 = Bit Start Adaptable Connector:Adaptable connector circular mini 8-pin Cable System Peripheral-8 Cable:Apple Recommended 1-14. Table signal:See and assignment pin Connector

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Interface 28 1.3.3 Interface Mac Serial 1.3.3         Revision C Revision IBM X24E IBM emulation EPSON Remote Manual Selection: Manual mode. setting in default be selected can interfaces One of four Selection: Automatic setting default enabled by the is selection interface The automatic is printer the mode, selection interface automatic this In mode. is to receive which interface for scanning state idle to the initialized is first data receives that interface The on. powered is it when data in the is printer the and transfer data host stops When the selected. the to returns printer for the a number of state seconds, stand-by is interface printer sends data or the As host as the long state. idle is. it as let is interface selected the state, busy 1.3.5 Printer Language1.3.5 and Emulation language:Printer ESC/P2 time-out Prevention 1.3.6 Hosts from Data Transfer a peripheral when peripherals to transfer data abandon hosts Generally, prevent To continuously. seconds of dozens for state busy the in is slowly, data very receives the printer of time-out, kind from this hosts This in busy state. is the printer even if minute, per bytes several several becomes buffer input the of rest the when started is showdown continuously state busy the in is printer the Finally, bytes. of hundreds full. is buffer input the when Selection Auto1.3.7 Interface USB, parallel of interfaces: types 900 has four Color The EPSON Stylus Each Type-B interface. and optional interface Mac serial interface, mode or setting default in manually selected can be interface automatically.   Description Pin #1 Pin Pin #4 Pin Cable power, Maxi. power consumption power Maxi. power, Cable mA 100 is Data ohms K 1.5 V via to +3.3 up pull Data, resistor Ground Cable I/O ---- Bi-D Universal Serial Bus Specifications Rev. 1.0 Rev. Bus Specifications Serial Universal Universal Bus Device Class Serial Definition for Printing Device Version 1.0 P in #2 Pin Pin #3 Pin Figure 1-9. USB Pin Assignment USB Pin 1-9. Figure -Data Name Signal Signal Ground Table 1-16. Table Pin1-16. of the USB Assignment and Signal I/F 1 Vcc ---- 2 34 +Data Bi-D Pin No. Pin Standard: following: the on Based Bit Rate: Bit Encoding:Data Connector:Adaptable B USB Series NRZI meters Cable Recommended Length:2 M bps 12

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Interface 29 1.3.4 USB 1.3.4 Interface      Revision C Revision Automatic selection: Automatic IEEE1284.4 starts and interface is compatible state An initial synchronous (1284.4 strings when magic communication received. are commands) ON: magic the before sent Data state. initial as enabled is IEEE1284.4 is discarded. commands) synchronous (1284.4 string OFF: commands synchronous and IEEE1484.4 is disabled IEEE1484.4 state. the initial is interface Compatible are ignored. 1.3.7.1 IEEE 1284.4 Protocol a device allows standard by IEEE1284.4 described protocol The packet data contain which conversations or exchanges multiple on carry to the same time across at device with another information control and/or device a however, not, is protocol The link. point-to-point single a and control flow transport-level basic does provide It language. control independent are channels logical The multiplexed services. multiplexing The others. on the of one has no effect blocking and of each other IEEE1284. over operates protocol   

An interrupt signal, such as /INIT, on the parallel interface is interface the on parallel such as /INIT, signal, An interrupt not effective while that interface is not not selected. is interface that while effective not When an interface other than parallel interface is selected, the is selected, interface parallel than other When an interface state. BUSY the into goes interface parallel the selected, is interface serial than other When an interface MARK. to signal DTR the sets interface serial the selected, is interface optional than other When an interface optional the to register MNSTS of bit LINE” “OFF sets printer interface. the state, idle to the returned or is initialized When the printer sets interface serial the and state ready enters interface parallel of “OFF LINE” bit resets DTR SPACE printer the signal the and optional. to the MNSTS register

Interface state and interface selection and state interface Interface     NOTE:

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Interface 30  Revision C Revision Lights when the operate switch is “ON”, and AC power is supplied. is AC power and “ON”, is switch operate the when Lights the paper- during and blinks condition, paper-out the during Lights jam condition. Black the during blinks and condition, ink Black no during Lights low condition. ink ink Color the during blinks and condition, ink Color no during Lights condition. low 1.4.1 Indicators 1.4.1 (LEDs) 1. Power 2. out Paper 3. Ink Out (Black) 4. Ink Out (Color) Power LED Power Button Power Button Load/Eject Paper Out LED Out Paper Figure 1-10. Control Panel Control 1-10. Figure C leaning C leaning B u tto n In k O u(C t o lo r) L E D In k O u(B t la c k ) L E D EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Panel Operation Control 31 1.4 Control Panel Operation 2 of the composed 900 is Color EPSON of the Stylus panel The control and 4 LEDs, as push-button, 1 lock-type type push-buttons, non-lock below: shown Revision C Revision Function / Operation Function While the Paper Out LED is blinking, pressing pressing blinking, is LED Out Paper the While Printhead the generates button Load/Eject the alignment mode. I/F parallel for the default the Changes communication protocol. *2 While the Paper Out LED is blinking, pressing pressing blinking, is LED Out Paper the While the generates button no or Cleaning the *1 mode. setting Default Table 1-19. Printer Setting Mode Setting 1-19. Printer Table Button

the Default setting mode. setting Default the Load/Eject seconds.) for 10 down it (Hold Load/Eject 10 seconds.) within it (Press Cleaning or no button *1: generates also button any pressing without blinking LED Out the Paper Leaving *2:troubleshooting. for only used is function This for users. intended Not 1.4.2.1 Printer Setting Mode 1.4.2.1 and the Paper button, the Cleaning on, press printer the turning While by pressing be must followed operation This blinking. Out LED starts the to enter blinking LED Out still the Paper is while button specified the in as described mode, alignment Printhead or mode setting Default 1-19. Table setting on the default information for detailed pages following See the mode. alignment mode and the Printhead Function *1

Function pressing this button returns the carriage to the capping to the capping carriage the returns button this pressing position. is in one of the following conditions: conditions: following the of one in is *2 Cartridge” Ink No Out”, “Ink Low”, “Ink position. capping the to carriage the returns • paper. ejects or Loads • position, replacement I/C in the is carriage the When • *2 sequence. I/C replacement the Starts • position. I/C replacement the to carriage the Move • sequence. cleaning printhead the Starts • printer the when sequence I/C replacement the Starts • position, replacement I/C in the is carriage the When Enters the special setting mode. (Factory use only) only) use (Factory mode. setting special the Enters Out Paper the while pressed then be must button Specified Section (See mode. each activate to blinking is LED 1.4.2.2.) Enters the printer setting mode. (The Paper Out LED starts starts LED Out Paper (The mode. setting printer the Enters *2 blinking.) is LED the while pressed then be must button Specified 1.4.2.1.) Section (See mode. each to activate blinking Table 1-17. Panel 1-17. Functions Table Table 1-18. Panel Function with with Power On Function Panel Table 1-18. + Button Button Cleaning Cleaning Load/Eject Load/Eject print. status the Starts 1)

pattern. Load/Eject *1 2 seconds) (within Load/Eject *1 2 seconds) (for Cleaning *1 2 seconds) (within Cleaning Cleaning *1 2 seconds) (for

Panel function:Panel 1-17. Table to Refer *1: 3 seconds is specified inthe Users Guide. *2: status. printing in effective not is operation This 1-18. to Table on:Refer with power function Panel *1: check nozzle and counter, ink version, firmware includes print status The

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Panel Operation Control 32 1.4.2 Functions Panel 1.4.2   Revision C Revision PC 855 PC 866 MJK Code Bulgaria 8859-2 ISO PC APTEC PC AR864 Italic Germany Italic Sweden Italic PC 437 PC 863 BRASCII 1 Latin ISO Italic France Italic Denmark Italic Italic spain1 PC 860 PC 861 Roman 8 8859-15 ISO PC 853 PC 857 MAZOWIA 1T Latin ISO Estonia UKR 866 PC PC 720 , 30 seconds , 30 , IBM X24E IBM , , Parallel, Serial, USB, Optional Serial, , Parallel, , Normal Usedin a usual environment. , 0 On: Used in the network environment. network in the Used On: 10 seconds Fast Off On, Off On, USA Italic UK Italic Italy Italic PC 850 PC865 Abicomp PC 858 This mode is for the network environment only. Off: PC437 Greek PC437 PC852 PC869 8859-7 ISO PC 774 LAT 866 PC PC 708 PC 437 Table 1-21. Default Setting Menu (continued) Menu Setting Default 1-21. Table

*: Underlined values are the defaults for the EEPROM reset. the for defaults the are values *: Underlined , Prestige, Script, Roman Roman Script, , Prestige, , Others , 12 cpi, 15 cpi, 17 cpi, 20 cpi, Proportional cpi, 20 cpi, 17 cpi, 15 cpi, , 12 , Bi-D, Uni-D , Bi-D, T, Sans Serif H, Draft Serif T, Sans 10 cpi 3 mm, 8.5 mm Roman, Sans Serif, Courier Serif, Sans Roman, Table 1-20. Default Setting Menu Setting Default 1-20. Table Font Pitch direction Print Position Loading Auto Default setting mode setting Default and by users can be changed will parameters setting Some printer is method setting The initialization. printer of time the at referred be below: shown as button. Cleaning the printed. is language selected the in mode” menu. selected the menu. main the to indication the returns and value, setting over. is selection menu last the after menu first memory.

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Panel Operation Control 33  1. mode. setting the Default Enter 2. mode” by pressing of this for “Usage language desirable the Select 3. and of “Usage this the setting current The button. Load/Eject Press 4. button. Cleaning the pressing by menu the Select 5.of phase selection value the enter to button Load/Eject the Press 6.button. Load/Eject the pressing by value the Select 7. the selected memorizes The printer button. the Cleaning Press 8. to the return will from 4 to 7. The menu the steps selection Repeat 9. non-volatile in the are stored The new settings off. the printer Turn Revision C Revision Function While the Paper Out LED is blinking, pressing pressing blinking, is Out LED Paper the While the resets seconds 10 for button Cleaning the to (Refer EEPROM. in the counter ink waste Appendix.) in Map Address EEPROM While the Paper Out LED is blinking, pressing pressing blinking, is Out LED Paper the While the EEPROM initializes button Load/Eject the EEPROM to (Refer IC. timer the resets and Appendix.) in Map Address Table 1-22. Special Setting Mode Setting Special 1-22. Table Switch Load/Eject Cleaning (Holdit downfor 10 seconds) 1.4.2.2 Special SettingMode and Cleaning both Load/Eject the pressing on, printer the turning While LED Out Paper the While mode. setting Special the generates buttons in button(s) specified the pressing by function each activate blinking, is 1-22. Table in described method the Printhead alignment mode alignment Printhead on. the printer turn alignment. current and printer number. test the appropriate LEDthe indicate button. Load/Eject the by pressing pattern aligned closely aligned.

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Panel Operation Control 34  below: is method as described Alignment 1. buttons, (Black) Cleaning and Load/Eject both down holding While 2.the adjust to how shows that sheet instruction an prints Printer 3. until button Cleaning press the alignment, current to the Referring 4. pattern. test the prints The printer button. Load/Eject the Press 5.most the select new printout, the on patterns test the to Referring 6. button. the Cleaning Press 7. properly are patterns test all from 3 to 6 until the steps Repeat 8. off. the printer Turn Revision C Revision 6 8 3 7 7 2 Priority ------Blink Blink Paper Out Paper ------Off Blink Blink (CMY) Ink Out Indicators ------Off Blink Blink (Black) Ink Out Ink Out ------only) 1 second (for ON --- Blink Blink Blink Power Table 1-23. Printer Condition and Panel Status Panel and Condition Printer 1-23. Table Printer Status Printer Power on condition on Power On ------9 Ink Sequence mode Sequence Ink Data processing Jam Paper Ink level low (Black) Ink level low (CMY) Request Maintenance I/C replacement modeI/C replacement OutPaper Blink (Black) Out Ink No I/C, --- (CMY) Out Ink No I/C, ------and EEPROM the Enters --- IC Reset Timer --- On Error ---Fatal ------5 On --- Blink On --- 7 On 4 7 On Blink 1

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Panel Operation Control 35 1.4.3 Printer Condition and Panel Status table the Since status. panel and condition printer shows 1-23 Table enables it status, printer indicates also and status error various shows ways. repair appropriate find to you Revision C Revision 1.5.4 No 1.5.4 Ink Cartridge into goes it off, come has cartridge ink the that detects printer When the error. cartridge ink No the Maintenance 1.5.5 Request flushing and the cleanings through wasted of ink quantity When total the The printing. and stops error this indicates printer limit, the has reached service by a new one a with be replaced to needs printer the in absorber person. Fatal Errors 1.5.6 it or CG error, error access control carriage the detects When printer the condition. error fatal the enters Never use an ink cartridge that that has been removed. Never use an ink cartridge CAUTION EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Error Status 36 1.5 Error Status error goes in the the printer occurs, status following When any of the the in signal /ERROR the setting data, receiving and stops status the condition, this During “High”. to signal Busy and “Low”, to interface LED for detailed 1.4.3 to Section Refer status. non-printable in is printer types. error and corresponding status indicator Panel Ink Out 1.5.1 of warns it color, any of ink the of most the out run has printer When the the out runs printer the When printing. keeps and Low condition Ink error. Out Ink the and indicates printing stops it ink of color, any whole an ink- Note if state. this in a new ink-cartridge to install is required User never be used again. should it out, has been taken cartridge ink the upsets ink) with filled fully (not the used cartridge Reinstalling as a the printhead and in problem may cause a serious detection level result. Out Paper 1.5.2 the Paper Out error goes into it a sheet, to fails load When the printer condition. Paper Jam 1.5.3 error the Paper Jam goes into it a sheet, to eject fails When the printer condition. Revision C Revision (a) Initializes the printer mechanism. printer the Initializes (a) buffer. data input the Clears (b) buffer. print the Clears (c) values. default Sets the (d) (a) Caps the printhead. (a) a paper. Ejects (b) buffer. data input the Clears (c) buffer. print the Clears (d) values. default Sets the (e) (a) Clears the print buffer. print the Clears (a) values. default Sets the (b) Power-on initialization Power-on cold- the recognizes on or turned is when it initialized is printer The is printer When the RS command). (remote command reset the following: performs it initialized, Operator initialization 10 seconds within again on is turned when it initialized is printer This of pulse) (negative signal /INIT the recognizes or off power last after the performs it initialized, is When printer interface. parallel the following: Software initialization is printer When the printer. the initializes ESC@ command also The the following: performs it initialized,

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Initialization Printer 37 1.6 Printer Initialization of types three with The EPSON900 is Color equipped Stylus methods. initialization    Revision C Revision 1.7.1 Printer Mechanism Printer 1.7.1 and color 900 has black Color the Stylus mechanism of The printer (180 amount of nozzles larger drives which one unit in heads united the feature, a jet printer ink for new Also, than ever. total) in nozzles areas acceleration/deceleration the in printing in succeeded has printer This throughput. the improve to scale linear the on slits the reading by depends Pump/ASF switching on the mostly in throughput improvement the when switched are trains gear the printers, other In mechanism. In movement. carriage’s the with along mechanism the hits lever trigger to attached directly is solenoid exclusive the however, 900, Color Stylus a at drive switches which solenoid the With instead. mechanism the system: ejection paper high-speed can control printer the speed, higher printing the to sheet second the of edge leading the bring printer the sheet. first the ejecting before just position are CR and the PF motor, motor, printer with the equipped The motors 800. Color Stylus same as for the Pump/ASF Motor, 1) Printer mechanism Printer 1) board Main C265 2) board PSB/PSE C265 3) board panel C265 4) board relay C265 5)

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Component Layout 38 1.7 Component Layout 900 as Color are follows: of the Stylus The main components Revision C Revision CG-ROM 16M (M160B16XA) 16M P-ROM 16 M (TEE01X) M 16

The “X” in the table represents the version. the represents table the in “X” The Destination Table 1-24. Relation between P-ROM and CG Relation 1-24. ROM Table Standard versionStandard (TEE01X) M 16 installed. Not NLSP version

However, the valuable dot system of this printer enables the printer the printer enables printer of this dot system the valuable However, specific ink-jet and raster, one in dots of sizes different three fire to banding are and white printing as such uneven conditions adverse result. a as improved NOTE: The C265 Main board is also equipped with a CG-ROM which deals a CG-ROM which deals with also equipped board The C265 Main is are as and size DOSCG The condition with users. ROM attachment 1-24. Table in shown , its size has increased to 2 K bit. to 2 K bit. has increased size , its *1 printer to freely fire three different sizes of dots (normal, middle, and middle, (normal, of dots sizes different three fire to freely printer dot micro super the if printers, other In one raster. in dots) small prints the printers driver, the printer through mode is once selected completed. is data print current the until mode selected the in only ECP mode is available available is I/F Type-B up to 4W1-2 phase (using system step the micro with controlled Mixed, Slow, mode (First, attenuation mode) and current excitation Decay). and abnormal the and thermistors using the fan the cooling operates board. on printhead the circuit detection temperature

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Component Layout 39 *1: the enables dot system, or many-valued dot system, The valuable 1.7.2 C265 Main Board 1.7.2 follows. as are board Main C265 the of features main The 1. compliant IEEE1284 2. 900 K 1.8 M 3.6M bps). (at bps, bps, available I/F is Mac serial 3. 12 the M bps without hub). (at available is USB full-speed 4. are and PF motor, motor) Pump/ASF (CR motor, motors All 5. printhead: the of new type the of control temperature Intensive a H8S2357, CPU which has an the hub of C265 Mainis board, with the CPU runs KB. Since size of 128 memory the with flash internal The a high throughput. for efficiently data can send print 24 MHz, it ASIC1 and ASICs, exclusive has two independent board C265 Main the USB and sensors, but I/F interfaces all controls The former ASIC2. and USB encoder, I/F. motors, the printhead, controls latter the while IC and EERPOM timer which a normal has in IC (IC8) The combined the EEPROM Since counts ink the printer. also features chip one printing valuable the at consumption Revision C Revision C harging/Discharging driver driver nozzles color the C harging/Discharging driving for 3 (upper), Q4 (lower) Q (upper), 3 C harging/Discharging driver driver nozzles black the C harging/Discharging driving for Q 5 (upper), Q6 (lower) Q (upper), 5 CN8 CN9 CN14 Heat Sink Heat Thermistor (detects tem perature perature tem (detects Thermistor sink) heat the of Thermistor (detects tem perature perature tem (detects Thermistor board) printhead on the CN13 CN- 16 IC16 (upper), IC15 (lower) IC15 (upper), IC16 H pre-driver ead CN- 12 CN10 CN- 11 (IC12) CR Motor Driver CR Motor (IC12) (IC11) PF M otor Driver PF M otor (IC11) CN6 CN4 IC13 (upper), (upper), IC13 (lower) IC14 Driver MASF otor CN5 IC1(CPU:H8S) IC2(E05B59) Figure 1-11. 1-11. C265 Main Board Figure CN2 CN1 L ith iu m B a tte ry IC5(D-RAM) IC6(CGROM) CN15 CN3 IC3(E05B60) IC8(Timer & EEPROM ) IC8(Timer IC4(One-time PR O MIC4(One-time )

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Component Layout 40 Revision C Revision ) C 11(for sm oothing) C 11(for Q1(FET) Danger! N ose cut reactance N cut ose ( T1(Trans) L1 D 55(Diode) D 51(Diode) F1(Fuse) Figure 1-12. C265 PSB/PSE Board C265 PSB/PSE 1-12. Figure CN1 C 1(Noise cut capacitor) cut C 1(Noise IC51(+5V regulator) IC51(+5V CN3 CN2 Never touch the heat sink (radiation plate) on the Q1 on the plate) (radiation the heat sink Never touch Otherwise, insulated. your bare hands as it is not with shock. get an electrical you will C265 PSB board:For America, Japan, part of South Asia of South east part Japan, America, C265 PSB board:For regions all rest of C265 PSE board:The   W ARNING EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Component Layout 41 1.7.3 Board C265 PSB/PSE 1.7.3 as below. board listed C265 power of the supply are two types There The C265 PSB/PSE board uses the switching regulator system. Since Since system. regulator uses The C265 PSB/PSE the switching board side, on the secondary power switch uses the C265 PSB/PSE board the the T1. Especially, across side primary to the voltage applying keeps it to the due be insulated can not attached Q1 is the which to sink heat the not be careful shock, an electrical avoid to Therefore, formation. circuit’s while simultaneously parts metallic other and sink heat the touch to troubleshooting. Revision C Revision Solenoid (Sw itches ASF/PU M P (Sw itches Solenoid m ) echanism C onnector from the CN the 12 from C onnector C Board 265 Mon the ain Pump/ASF M otor Pump/ASF Motor Feed (PF) Paper CN the 11 from C onnector C Board 265 Mon the ain C onnector from the CN the 10 from C onnector C Board 265 Mon the ain CN the 16 from C onnector C Board 265 Mon the ain C onnector from the CN the 15 from C onnector C Board 265 Mon the ain

BLK M/C M/C WHT Panel C ontrol C arriage (CR ) Motor (CR ) C arriage Figure 1-14. C265 Relay Board Relay C265 1-14. Figure RED ASF Sensor ASF M/C CRH PE ASF PE Sensor C arriage hom e position (CR H sensor P) hom e position C arriage Power for driving motors and motors sensors driving Power for signals Control 1.7.5 C265 Relay Board 1.7.5 connectors: with the following relay to installed board is The C265 relay   during a position to is wrong connected connectors any of the If power on. at error shows a fatal the printer assembly, 12 LED 0 SW 0 CN1 1 LED 2 Figure 1-13. 1-13. C265 PNL Figure Board SW 2 SW 1 LED 3 LED 1

EPSON Stylus Color 900 EPSON Color Stylus DescriptionProduct Component Layout 42 1.7.4 C265 PNL 1.7.4 Board four and switches the three of is composed The C265 panel board LEDs. 

OPERATING PRINCIPLES Revision C Revision 2.2 Printer Mechanism Operating Principles It has black 900 uses a The EPSON Color new type of Stylus printhead. 480 nozzles: of total a includes which unit one in united heads color and color. for each x 2) and 96 nozzles (96 nozzles black for 192 nozzles 10-cpi at pass one by lines 3 print to printer the enables printhead This higher mechanism offers new ASF/pump switching Also, printing. by printing at continuous motion feeding quick with throughput pump/ASF motor. independent and solenoid trigger the combining the printer enables also belt encoder the using PTS signal of Production CR paper jam in the operational detect accuracy, printing to improve 360 / paper normal (on acceleration/deceleration during and print range, x 360 dpi only). diagram. block mechanism printer the for 2-1 See Figure

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Overview 44 2.1 Overview of the printer principles operating the describes chapter This circuits. and electrical mechanism Revision C Revision ASF solenoid (for sw itching the the sw itching (for ASF solenoid pumpASF, trains) gear Pump/ASF m otor Pump/ASF C R m o to r ASF sensor (for phase detection) phase (for ASF sensor ASF cam ASF Paper load rollers load Paper PE (Paper End) sensor End) PE (Paper ASF drive shaft ASF drive C R guide shaft C R guide Cap C R unit Encoder belt Encoder PF mPF otor Timing belt Timing PTS encoder C R H P sensor (high-precision gear) (high-precision Pump Paper eject sub roller sub eject Paper Figure 2-1. The Stylus Color 900 Printer Mechanism Block Diagram Block Mechanism 900 The Color Printer 2-1. Stylus Figure H igh-precision pinion H igh-precision V a lv e fo r c a p p in g C olor I/C detection lever detection I/C C olor B lack I/C detection lever detection I/C B lack P F ro lle r (p o w d e ry -c o a te d ro lle r) PF drive gear gear PF drive U nited printhead for black and color black for printhead U nited lsigpsto te8t ou n side) colum 80th (the position Flashing

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operating Mechanism Printer 45 Revision C Revision Sensor output Sensor 2.4 VDC or more VDC 2.4 Specifications 5% ± Photoelectrical transfer system transfer Photoelectrical GP1S73P2) (SHARP 30 VDC or less 5 V Switch mode Switch

OpenClose or less VDC 0.7 Item Table 2-3. CRHP Sensor Switch Mode Switch CRHP Sensor 2-3. Table Table 2-2. Table CRHP2-2. Sensor Specifications Drive voltage CR Position 1Type 3 resistance Collector 2 No. Off the CRHP range the Off Within the CRHP the Within range If this sensor is defective or does not work, it does not detect the the detect not does it work, not does or defective is sensor this If seek mode. In this home position in the is carriage the while carriage CR and shows a to the motor fatal electricity off cuts printer the case, error. encoder a linear uses 900 also color the Stylus Pro5000, Stylus the Like The timing. print accurate and movement carriage secure obtain to the above scale) (linear belt on the encoder reads slits encoder linear encoder linear the for 2-4 Table See carriage. the control to belt timing specifications. Specifications 5% (Applied to the driver) the to (Applied 5%

± 10% ±

Ω 42 VDC 42 drive current constant Bipolar Table 2-1. 2-1. CR Specifications Table Motor Item Drive voltage Drive mode When power is turned on / off When power is turned is charge, ink initial including operation, cleaning a head When performed. the printer because to a status ready returns When the printer one second or no data for or job receives print has executed more. 2 4 3 Coil resistance 5.8 1 Type Motor motor stepping HB-type / / 200-pole 4-phase No.   

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operating Mechanism Printer 46 2.2.1 Mechanism Carriage 2.2.1 moves it on the printhead with unit the carriage 2-1, Figure As shown in CR of the (Carriage) direction rotational on the depending and left, right specifications. motor CR the shows 2-1 Table motor. The CR unit position is always memorized and controlled by the CRHP memorized always and controlled The CR is position unit CR position the confirms sensor This sensor. Home Position) (Carriage timing: the memory at the to following renew See Table 2-2 and Table and Table See Table 2-3 show the CRHP 2-2 which sensor respectively. mode, switch CRHP sensor and specifications Revision C Revision Sensor Output Sensor 0.7 VDC or more or VDC 0.7 Specifications 5% ± Ω 5 VDC 5 50 m Using a micro switch micro a Using Closed Sensor Status Sensor

Item

Detection type Detection Rated voltage

resistance Contact Absent Open 2.4 VDC ormore Present Cartridge

Table 2-6. Ink Cartridge Sensor Switch Switch Mode Sensor Ink Cartridge Table 2-6. Table 2-5. Ink Cartridge Sensor Specifications Cartridge Table 2-5. Ink 3current Rated mA 10 2 4 1 No. If the ink cartridge sensor is defective or in an endetectable condition, condition, an endetectable or in is defective sensor cartridge the ink If is printer the after immediately Error Cartridge Ink No shows printer the on. turned

Specifications 5% ± 5 VDC 5 scale) linear the on lines the of (increment inch 1/180 KHz 20 Phase A/B 2-channel digital output (TTL level) (TTL output digital 2-channel A/B Phase

Item Table 2-4. Linear Encoder Specifications 2-4. Encoder Linear Table Drive voltage Drive step Minimum Response frequency Output waveform

5 2 4 1 Type module encoder Incremental Radiative 3 No.

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operating Mechanism Printer 47 The ASIC (IC2) reads the linear scale (increment: 1/180 inch) and inch) 1/180 scale (increment: the linear reads The ASIC (IC2) produce to used is information The read 8. by data divides internally production. waveform trapezoidal 2880-dpi for frequency drive basic the printer condition, in an undetectable or is defective encoder the If occurs error power on. This after immediately error a fatal generates operation. seeking home position carriage’s the before to CRHPalso serves the sensor position, carriage the detecting Beside setting the If properly. working is or not the carriage whether determine level specified do not reach the encoder the sent from (pulses) signals / deceleration / constant CR the in is acceleration the while moving that assumes consequently program the range, operative its in modes the shows and irregularly, operating is carriage the or jamming is paper up LEDs the the by bringing of corresponding jam error paper combination. ink the detect to used actuators 2 with equipped is printer The printer, The motor. CR the by driven unit carriage the in cartridges when black both only the actuators to operate designed is however, for 2-6 Table and 2-5 Table See installed. are cartridges ink color and switch sensor cartridge ink and specifications sensor cartridge ink the respectively. mode, Revision C Revision signal to the driver. signal on the nozzle the transistor because PZT to printhead: the in the not on. is selector the from selector the nozzle sent to are 2 of black) C, and 2 for rows is row each since 96 data of consists data serial Each ASIC. a Latch transferred, is all data When these of 96 nozzles. composed specified after selector ASIC to the nozzle from the is output signal time. of period selector. nozzle the in circuit latch the via transistor the of side latch and the data serial of set a after output pulse the by PZT the transferred. are all signal of 32.4 K Hz has such a large also and frequency drive basic abnormal the as 480 Therefore, PZT. elements drive amount of to selector nozzle the in included is circuit detection temperature under stays radiation heat that so nozzle each of temperature detect high abnormally detects circuit the If level. maximum the as condition the regards printer the row, nozzle any in temperature and it as dot such missing, malfunction printing an accidental cleaning the most powerful CL2, the cleaning enters automatically 2 the operations Chapter for in See sensor descriptions the cycle. to it in thermistor has the also The printhead cleaning. this after with accordance in pulse drive of the level voltage change the subtly use. in condition temperature the 2. pulse the drive head outputs the Pre-driver the signal, Receiving 3. applied not is driver the from output pulse sent, is data printing no If 4.and M, , for (3 data serial 5 a PC, from sent is data printing any If 5. base to the is applied a PZT signal is sent, When the Latch signal 6. to then applied is the driver from output constantly pulse Head drive 7. the with driven it is since heat large pulse The PZT radiates drive ASIC +42 Driver Charge Tem perature data Tem perature Latch Pulse Data D is-charge Pulse form com m form and Pulse Pre- Driver circuit Latch N ozzle Tem perature detection circuit Nozzle Selector Figure 2-2. Printing Mechanism Block Diagram Mechanism 2-2. Printing Figure PZT the printer is turned on. is turned printer the ozzle Pozzle late EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operating Mechanism Printer 48 Cavity N 2.2.2 Printing 2.2.2 Mechanism the inside included all is printer the of mechanism printing The MACH system, EPSON-exclusive is method The printing printhead. not is but the printhead printers, other is EPSON jet used which in ink printing the for 2-2 Figure See printer. other any with compatible diagram. block mechanism the to voltage by applying printing performs mechanism The printing With the printhead. the inside element) piezoelectric PZT (integrated pressed is ink, with a tank filled the cavity, to the PZT, applied voltage to the Unlikely result. as the from nozzles ink by the PZT and ejects in printhead in the number of the PZT included actual the illustration, PZT is each and nozzles, as same number the 480, is printer this driven. independently works. mechanism how the printing below describes The steps 1. the ASIC after from is output signal command form pulse Head drive Revision C Revision Specifications 5% (Applied to the driver) the to (Applied 5% ± 10% ±

Ω 42 VDC 42 VDC Bipolar constant current drive mode Items Table 2-7. Table 2-7. Pump/ASF Motor Specifications Drive voltage Drive Drive mode 2 4 1 Type 4-phase48-pole / / PM-type stepping motor 3 resistance Coil 7.0 No. 2.2.3 Paper 2.2.3 Load Mechanism in the in the hopper paper set mechanism The paper transports load by ASF It operated ASF is the and the pump/ASF motor the into printer. shown are as specifications The pump/ASF motor the ASF. drive which 2-7. Table in before reverse once in roller the semicircular The ASF rotates the cam in the motion, this with Along printer. the into paper transporting then lever The return lever. up the return pushes roller semicircular which paper some result, the As force. spring tension up with bounces all is motion feeding previous the during hopper the off fallen was return paper This so called hopper. back in the set and aligned paper Therefore, motion. each paper feeding for performed is operation the how shows which 2-4 See Figure improved. is accuracy loading ASF feeds paper. Row E (Yellow) E Row #96 #95 #94 #93 #3 #2 #1 Row D (Cyan) Row #96 #95 #94 #93 #3 #2 #1 R ow C (Magenta) 180 dpi 360 dpi Figure 2-3. Nozzle Configuration Nozzle 2-3. Figure #3 #2 #1 #95 #93 #96 #94 R ow 2) B (Black R ow 1) A (Black #1 #3 #2 #93 #96 #95 #94

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operating Mechanism Printer 49 [Nozzle configuration] [Nozzle 900. Color of the Stylus configuration nozzle the 2-3 for See Figure at 360 dpi are aligned nozzles the black As shown in the figure, the In color at 180 dpi. aligned are nozzles and the color (vertical) used and the rows is among 2 row nozzle only black “B” mode, printing the is used for mechanism (The same is not used. row “A” other printing.) microweave Revision C Revision system Sensor Output Sensor Functions for the ink ink for the Functions gear train gear (absorption) pump pump motor • pump to the Connection • of the rotation Normal • lock. CR the Releases • Sets the wiper. • the of rotation Reverse • CR. the Locks • wiper. the Resets Specifications 2.4 VDC or more 5%

± 30 VDC or less VDC 30 Photoelectric transfer system (transmission (transmission system transfer Photoelectric type) Functions for ASF Functions paper loading roller roller loading paper control) return (paper gear train gear (paper roller loading paper separation, loading) Sensor Status Sensor • the of rotation Reverse • ASF to the Connection • Normal rotation of the Close Table 2-9. 2-9. ASF SwitchTable Mode Sensor Item Table 2-8. ASF Sensor Specifications Sensor ASF 2-8. Table Table 2-10. ASF/Pump Motor Motor Functions ASF/Pump 2-10. Table Collector voltage Collector

Direction 3 resistance Coil 5 VDC 2 1Type No. ASF Position Normal rotation rotation Normal (CW) Home position Open 0.7 VDC or less Off the home home the Off position rotation Reverse (CCW) Note that torque from the pump/ASF motor is transmitted to the pump transmitted the pump/ASF motor is from torque Note that rotational The condition. mechanism pump/ASF the on depending unit 2-10. Table in as shown are functions corresponding and directions ] 4) 3) 2) Active Status Active [ A 1) H opper Separation pad Separation Pinch roller Pinch Figure 2-4. 2-4. ASF Paper Load Mechanism Figure Cam [Ready status] [Ready Semicircular ro lle r EPSON Stylus Color 900 EPSON Color Stylus R e tu rn le v e r PrinciplesOperating Principles Operating Mechanism Printer 50 After a paper loading motion is completed, the semicircular roller rotates rotates roller semicircular the is completed, motion loading a paper After operation This stack. in the the top paper to load direction the normal in the ASF, in the because of the gears phase correct enabled by the is by the paper surface the contacting roller’s the semicircular for timings The be out pushed must coincided. being and the hopper’s (A) corner the is phase whether the condition used to determine ASF sensor is the detects ASF system of sensor the The transmission or not. correct same the onto cam attached the of position the catching by condition the for 2-9 Table and 2-8 See Table is. roller semicircular the as shaft respectively. mode, and switch its ASF sensor specifications Revision C Revision Paper Output voltage PE sensor Specifications 2.4 VDC or more 5% (Applied to the driver) the to (Applied 5%

± Actuator PF m otor pinion PF m otor 5 VDC Transmission-type photoelectric transfer transfer photoelectric Transmission-type system Sub roller ro lle r PF drive gear PF drive Switch mode Switch Closed Figure 2-5. Paper Feed Mechanism Paper 2-5. Figure PF (powdery-coated) Table 2-13. 2-13. PE SwitchTable Mode Sensor Item Table PE Sensor 2-12. Table Specifications Drive voltage Drive Paper Paper

ro lle r 3 resistance Collector or less VDC 30 2 1Type installation No. Installed Not installed Open less VDC or 0.7 Paper ejection Paper N otched roller N otched See Table 2-12 and Table 2-13 for the PE sensor specifications and the the and specifications PE sensor the for 2-13 Table and 2-12 Table See respectively. mode, switch sensor PE Specifications 5% (Applied to the driver) to the (Applied 5% ± 10% ±

Ω 42 VDC 42 Bipolar constant current drive mode Table 2-11. 2-11. Specifications PF Motor Table Items Drive voltage Drive Drive mode 2 4 1 Typemotor stepping / HB-type 200-pole / 4-phase 3 resistance Coil 8.1 No. from the gears. from transported. ASF is the correctly

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operating Mechanism Printer 51 For the printer-specific feature, the PF motor pinion transfers torque to to torque transfers pinion motor PF the feature, printer-specific the For The gears between. gear in any transmission without PF gear the drive precise. are very and PF the PF motor the gear pinion drive used for them: when handling below points the note Therefore, 1. bare hands. with your the gear surface Do not touch 2. away drivers such as screw servicing for or tools parts Keep other used to check the mechanism is the paper feed The PE in sensor following: 1. from paper the edge of leading the if checks loading, paper During 2. the specifications. meets paper loaded if the Checks 3. over. is printing after ejected paper is if properly the Checks 4. jamming. is paper if Checks 2.2.4 Paper Feed2.2.4 Mechanism during feeding paper constant manages mechanism feed paper The PF the motor models, previous Unlike ejection. to paper through printing no having mechanism, the paper feed only drives printer of this mechanism. pump nor the mechanism lock carriage the with connection paper feed of the section the cross 2-11 for 2-5 Table and See Figure respectively. and the PF specifications, motor mechanism Revision C Revision set and the pump transmission gear in mesh. gear and are pump set the transmission it. suppresses motor the but rotate, not does (3) gear the point, this At up. move in mesh. rotate and gear (2) gear pinion notch with the is aligned solenoid of the when a corner is fixed train gear set. planetary in the in the roller to rotate mechanism the printer gear the in ASF drive Section to (Refer mechanism). return paper (for reverse ASF the mechanism.) the paper return for 2.2.3 Figure 2-6 shows the gear condition after switching to the ASF is to the switching after the gear condition 2-6 shows Figure move to switch the how gears describe below The steps completed. train. the ASF to pump gear from gear train 1. gear planetary in the the gear (3) condition, pump In the gear train 2.(CW). direction normal the in rotates motor pump/ASF The 3. to move up, but the solenoid set tries gear The whole planetary 4. set to gear the whole planetary allowing comes on, The solenoid 5. and ASF come mesh The gears to gear the (3) (4) and connection in 6. to connected is (5) gear The meshed. are (5) and (4) gears the Then Solenoid R eduction gear R eduction Planetary gear set gear Planetary Figure 2-6. Switching Operation to the ASF Gear Train ASF Gear the to Operation Switching 2-6. Figure Pump/ASF m otor Pump/ASF Pum p transm ission gear Pum ission transm p

EPSON Stylus Color 900 EPSON Color Stylus gear ission ASF transm PrinciplesOperating Principles Operating Mechanism Printer 52 Switching to the to the ASF gear train] Switching 2.2.5 Pump/ASF Switch Mechanism Switch Pump/ASF 2.2.5 between torque motor’s the switches mechanism switch The pump/ASF The pump/ASF motor sides. the and pump-system paper-loading the to (Refer trigger. as switching is used a solenoid and torque, supplies 2-6 shows Figure specifications.) pump/ASF motor the for 2.2.3 Section gear ASF the to switching when works mechanism pump/ASF the how train. [ Revision C Revision prevents it. prevents motor the but rotate, not does (3) gear the point, this At down. move mesh. in rotate and the gear (2) gear pinion is aligned of the solenoid when a fixed corner is pump gear train set. gear planetary the in notch the with CR to perform and pump operations. mechanism lock drive The steps below show how the gears move to switch from from the show how move ASF gear switch The steps the below to gears to the pump gear train. train 7. mesh. are in and (4) the gears (3) condition, ASF In the gear train 8. (CCW). reverse rotates motor pump/ASF The 9. solenoid the but down, move to tries set gear planetary The 10. gear set to planetary the whole allowing comes on The solenoid 11. to the and the connection come mesh, in and (4) The gears (3) 12. printer the in gear pump transmission the meshes with (4) gear The Solenoid Planetary gear set gear Planetary Pum p transm ission gear Pum ission transm p Figure 2-7. Switching to to the 2-7. Pump Gear Switching Train Figure Pump/ASF m otor Pump/ASF ASF transm ission gear ission ASF transm

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operating Mechanism Printer 53 [Switching to the to the pump gear train] [Switching to the pump gear switching after shows the gear condition 2-7 Figure is completed. train Revision C Revision rme Fram Pum p intermittent gear Pum p intermittent Pum p transm ission gear Pum ission transm p In the pump gear train condition pump train the gear In C leaner head C leaner Spacer O n the O n the sam e shaft Locked C om spring pression Clutch Unlocked (rig h t) P re s s u re ro lle r (le ft) Figure 2-8. Pump / Carriage Lock / Head Cleaner Mechanism Cleaner Head / Lock Carriage Pump / 2-8. Figure P re s s u re ro lle r

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operating Mechanism Printer 54 2.2.6 Pump / Carriage Lock / Head 2.2.6 Cleaner Mechanism lock carriage the with accordance in The pump mechanism operates the illustrates 2-8 Figure mechanisms. control cleaner head and each to motor pump/ASF the from transmission torque of process mechanism. Revision C Revision CCW Separator Figure 2-9. Ink Absorption Process Absorption 2-9. Ink Figure CW 2) pump intermittent gear gear 2) pump intermittent → 3) pressure roller (right) (pump drive roller: flesh color) flesh roller: drive (pump (right) roller 3) pressure → lever. The carriage lock lever is released with normal rotation of the of rotation normal with is released lever lock The carriage lever. motor. of the rotation reverse and set with pump/ASF motor the has 900 Color Stylus The act. to pump begin the drive to used color and black the since However, rollers. pressure left and right the in split is tube absorption the one unit, in included are heads See Figure so the middle in 2 pumps can absorb the ink printhead. process. absorption the ink explains 2-9 which between set is spring compression a and roller, head drive cleaner the cleaner Since roller. drive head and the cleaner cleaner the on it 2-8) in Figure a circle with red (marked has head a protrusion roller the with along forth and back moves it side, roller the on it level, specific the than faster rotates roller the if However, rotation. does not spring the compression of tension alone because rotates work any more. (black) (black) cleaner is that the pump/ASF switch mechanism is switched to the to the is switched mechanism pump/ASF the switch is that cleaner 2.2.6.) Section to (Refer train. gear pump gear (black) transmission 1) pump

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operating Mechanism Printer 55 3. lock the carriage to transmitted is also drive the way, the Along 4. parts all (right), roller to the pressure transmitted Once the is drive 5. the pump and the between frame located head is The cleaner The steps below explain the process of driving each mechanism. each of driving the process below explain The steps 1. and head lock, pump, carriage the driving for The precondition 2. via: transmitted the pump/ASF motor is from Drive Revision C Revision 2.3.1 C265 PSB/PSE Power Supply Supply Power Board C265 PSB/PSE 2.3.1 PSB/PSE C265 the of principles operating the explains section This order. in board, Then the AC from power socket. is voltage supplied supply AC power to of the avoid AC voltage current the incoming limits (F1) the fuse the C265 main board damaging and C265 PSB/PSE On the board. into voltage input surplus convert to serve TH2 and TH1 hand, other energy. heat circuit), filter (a circuit RLC parallel the to input next is voltage The input the higher keeps This operation absorption. harmonics higher for leakage and also prevents printer, of ACthe power in the out harmonics printer. the in generated harmonics higher of full-wave the through goes AC voltage the removed, is noise After is wave the alternate The component of minus circuit. rectification result. the as eliminated (C11) for condenser by electrolysis is smoothed the Then the voltage of side primary the to applied is current the and DC voltage, stabilized the transformer (T1). of the side primary the flow into does not however, The current, primary in the FET located (Q1) switching the (T1) main if transformer gate the to applied is voltage the on when comes Q1 The off. is side While on. turned is printer when the resistor, a starting the R28, through a because side; secondary the into flow not does current on, is Q1 the side. secondary to the used to diode connect is reverse-characteristics is it When current. the with charged gradually is (T1) transformer The going Q1 of starts the voltage any the gate charged and more, not full of gate voltage in the pulls C13 abruptly point, this At down gradually. the Q1 to turn the Q1 off. C265 main board C265 main C265 PSB/PSE board C265 Panel Board

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 56 2.3 Electrical Circuit Operation Principles boards: circuit of the following 900 consists Color The Stylus    Revision C Revision +5 VDC by changing output pulses in spite of diverse input input diverse of spite in pulses output by changing VDC +5 voltage as a serves constant This operation levels. voltage circuit. control circuit: protection overvoltage line V +5 case In overcurrent. for V line +5 the monitors circuit the in ZD53 board, as a defective such to 7 V reasons rises for the voltage +42 as the V the Q1 process in the same shuts gate the circuit follows. circuit protection overvoltage line off power at circuit delay drop Voltage that switch secondary The C265 PSB/PSEuses the board to the printer allows The delay circuit circuit. delay the includes the though even properly operation off power the complete printing. is it while off turned is printer by the is monitored by the user off operation A normal power program the off, power a detects When it board. main C265 the capping sequence, power-off the starts immediately and drops the power. printheads, allow to operate to continues (C84) condenser electrolysis The sequence. power off proper this execute to the printer   See the following page for the electrical circuit diagram. circuit electrical the for page following the See Smoothing circuit: Smoothing secondary the to (T1) the transformer from led energy the Since it current, alternating is induction by the electromagnetic side C51 and condensers C52 by the electrolysis must smoothed be to be directcurrent. circuit: control voltage +42 constant V line in series ZD81 - ZD86) connected (ZD51, 7 zener diodes To mechanisms. various used to drive +42 V status monitors controls the circuit levelI, at a constant voltage output the keep fed signals to the according the Q1 timing of slightly on/off the (PC1). photocoupler the from back circuit: protection overvoltage line V +42 in ZD87) connected (ZD52, 2 zener diodes includes circuit This various drive +42 V the used to line monitors It series. caused level voltage the in rise abnormal detect to mechanisms V, to +48 the rises output voltage If the in the circuit. by a defect in the of one the 2 channels to a port is input signal Once Q1 operation. the cut off (PC1) to completely photocoupler the unless recover not does flow normal a active, is circuit this on. back and off turned is printer +5 circuit: VDC production IC the VDC. Since +42 of out VDC +5 produces (IC51) L4960 constant produce can always it PWM control, operates internally    

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 57 Once the Q1 is off, the energy charged in the primary side flows into the the into flows side primary the in charged energy the off, Q1 is the Once in transfers energy the because occurs This at once. all side secondary the Q1 off. with characteristics diode as the reverse same the direction has the specified which (T1), of the transformer side The secondary 42 VDC out the creates 42 VDC production, for lines coiling of numbers electromagnetic the by side secondary the to led energy the of induction. to output circuits has numbers of stabilizing side The secondary below: listed as voltages, stabilized Revision C Revision GP GP +42V/0.8A +42 +42 +42 +5 GL GL +5V/1.5A +5 PSC +5 5V line overvoltage protection overvoltage 5V line Q84 Sm oothing + C84 H igher harmonics absorption harmonics H igher + C54 ZD53 ZD52 ZD87 L51

C 7 Out Sm oothing Voltage drop delay circuit at power off power at circuit delay drop Voltage Sm oothing ZD 51, ZD 81-86 DB1 L4960 (IC51)

C 51,52 1 In 5 +5 V R egulator OSC C2 F u ll w a v e re c tific a tio n D51 T1 C3,C4 L1 Q3 PC1 b a c k Feed Q2 Figure 2-10. C265 PSB/PSE Board Circuit Block Diagram C265 PSB/PSE Board Circuit 2-10. Figure H igher harmonics absorption harmonics H igher R1 C1 42 V line overvoltage protection overvoltage 42 V line C om on w hen abnormal. Coupler Photo 42 V line constant voltage control voltage constant 42 V line F1 R28 C13 300 K Feed back TH1, TH2 TH1, Q31 S w itc h in g Main Q1 Starting resistor Starting Incom ing current protection current ing Incom L N Inrush current tem perature conversion perature tem current Inrush

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 58 Revision C Revision r CN10 P F m o to r CN11 CR moto R TC 9810 (IC 8 ) CN2 Type B I/F LB1847(IC12) LB1847(IC11) CN15 Sensors Mac. Serial CN3 Mac. CN1 C entronics CN8 H ead 1 CN9 H ead 2 SN 75LBC (IC10) CN12 mASF otor Timer /R S T 74LV161284 (IC 9 ) T93C 56 (IC 7 ) E05B60 (IC 3 ) E05B59 (IC 2 ) A3957(IC13) A3957(IC14) M-RAM (IC 6 ) C XA2128(IC15) C XA2128(IC16) Figure 2-11. C265 Main Board Block Diagram Block Board Main C265 2-11. Figure D-RAM (IC 5 ) CRU1 Q9 PROM (IC 4 ) Q7 H D 64F2357 (IC 1 ) CN13 FAN CN4 USB CN16 ASF Solenoid

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 59 2.3.2 C265Main Board C265Main 2.3.2 the block 2-11 C265 main diagram. for See Figure board Revision C Revision Functions and CR motor and enables 4W1-2 phase excitation excitation phase 4W1-2 enables and motor CR and system, control This EPSON line. in first for the mode the of control the materializes stepping, micro called of improvement and printing during vibration carriage accuracy in paper feeding on the hardware basis. on mode excitation phase 4W1-2 the supports also motor the IC in former the from differs but basis, hardware the phase the excite individually IC14 and IC13 the that point B. A and consist of two separate circuits; charging circuit and and circuit charging circuits; separate two of consist waveform. trapezoidal produce to circuit, discharging combining by waveform trapezoidal the IC creates This of the (IC2) E05B59 port input the from input signals the and characteristics the change to performed is This IC. the and discharging, and charging of levels voltage and print dot normal to specific waveforms trapezoidal result. the as are produced print dot micro • The LB1847 (IC11 and IC12) is used to drive PF motor • ASF Pump, to drive used IC14) and (IC13 A3957 The • board, the to attached directory ICs, driver head The Component Table 2-15. Major Components on the C265 Main Board (2/2) Board Main C265 the on Components Major 2-15. Table Motor driver IC IC driver Motor 12) IC11, (LB1847: 14) IC13, (A3957: Head driver IC driver Head IC15, 2: x (CXA2128 16) Functions Mhz with an external transmitter. an external with Mhz USB I/F, and EEPROM. and USB I/F, the on depending vary Specifications used. below: as shown destinations, be to type cleaning the determining for basis the by supplied is Power on. power next at the performed This battery). lithium (a battery button-cell external an to connecting signals reset to produce serves also IC motor2, and ASIC CPU, ASIC1, IC, such major each as and IC15 x 2: (CXA2128 ICs driver head The ICs. drive detecting when signal reset a produce individually IC16) the in stop can printhead the so voltage abnormal sequence. proper • A Hitachi H8-series CPU. • 24.0 at running processing data high-speed Performs • Bus width is 16-bit. • USB. but interfaces all Controls • sensor. each from signal the Monitors • fan, cooling ASF solenoid, motors, printheads, Controls • is ROM or Mask PROM one-time either PROM, For version>

CE 25 TCE

SCLK 26 TCLK

DATA 27 TDATA 2456 36

/R S T /R S T LB1847(IC11) LB1847(IC12) E05B60(IC3) R TC 9810(IC8) VREF1 VREF2 VREF1 VREF2 VIN VDD GND VBK job properly, the reset signal is once input to the convertor (setting (setting convertor the to input once is signal reset the properly, job correct the in motors stop to board main the on IC) production current sequence. of operation the by counting done is control timer the hand, other On the time confirmed can power be off and the printer’s circuit, the oscillator data count this Also, on operation. power next the at timer the on based flashing such as periodical operation for the timer used to manage is the off time. as as well power time power on during operate to 7) Pin to (input 5 V supplies printer the on, is printer the While off, turned is printer the when however, circuit, oscillation internal the starts immediately battery) lithium (a battery button-cell external the the Pin (3 8. V) voltage to supplying 7 8 9 2 2 13 13 14 3.0 V 3.0 Speed up diode BAT1 43 /R S T E05B59(IC2) 3 8 4 Figure 2-12. Reset/timer combined circuit combined 2-12. Reset/timer Figure D rops to 35 V to D rops D/Axy D/Axx D/Ayx +5 V +5 M 62383(IC17) /R S T R 18 107 K 81 R 20 10 K

/R S T 12 Devision H D 64F2357(IC1) +42 V

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 61 The control circuits are explained in detail below. detail in are explained circuits The control circuit] + timer) circuit (reset [Combined and production signal both reset manages RTC9810 circuit A combined the by monitoring signals reset produces It Time Controller). RTC (Rear 5 7) and 42 both to (input VDC line Pin 9). to (input When VDC line Pin level voltage the or V, 4.3 to drops VDC line 5 the for level voltage the reset a outputs circuit combined the V, 35.5 to drops line VDC 42 the for on is turned / off abnormal or Pin 2. Whendetects the printer from signal ICs to avoid following to the signal IC sends the reset the level, voltage abnormal and line logic the of run-away by caused damage printer its IC execute motor driver the to let Also, systems. of driver operation Revision C Revision THM N ozzle Selector Inside the printhead the Inside Row E Row Row D Row Row C Row Printhead surface Printhead Row B Row 1) Abnormal temperature detection part detection temperature 1) Abnormal thermisotrs of 3 composed is part detection temperature abnormal This nozzle the in included is which circuit detection temperature the and used for ports The CPU’s analog the printhead. inside selector are as follows: functions and their detection temperature Row A Row ANODE5 CN9 4 ANODE1 HDSAMI THM HPDSAMI ANODE2 ANODE3 ANODE4 CN8 1 2 9 19 21 20 10 112 111 110 109 108 107 106 105 Figure 2-13. Sensor Circuit Block Diagram (Abnormal Temperature Detection Circuit) Detection Temperature (Abnormal Diagram Block Sensor Circuit Figure 2-13. Thermistor on the heat heat on the Thermistor sink on the main board main on the sink AN7 AN6 AN5 AN4 AN3 AN2 AN1 AN0 Location (TH 1) on the board on the (TH 1) Location H D 64F2357(IC1)

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 62 [Sensor circuit] [Sensor in the following are as described the printer to attached The sensors 1) abnormal 2 major parts: into divided They are basically pages. The part. detection status mechanism 2) and part detection temperature by 2 ASICs; is controlled CPUby the and the latter controlled is former E05B59 (IC2) and E05B60 (IC3). Revision C Revision C and the printhead Cprinthead and the ° considerable amount of ink around the nozzle to leak all at at all leak to nozzle the around ink of amount considerable As a on the head surface. meniscus as damages once as well and ends printing the next at eject properly does not ink result, status. firing up in a false installed again, the ink consumption counter value is upset, and upset, is value counter consumption ink the again, installed This ink level. remaining the actual detect to fails the counter to keep the printhead causes dangerously wrong operation cartridge. the in remaining ink any without firing flow properly does but it not cartridge, in the is ink enough there is PZT the If nozzle(s). clogged a of because head the into nozzle the by generated heat flow, ink any without driven the makes this and be released, not can movement high. the head abnormally around temperature 3. a to the causes head impact applied vertical Strong 1. end and is life its before removed been has an cartridge If ink 2. case, In this firing. false can also cause missing dot Serious might be damaged as a result. To prevent this from happening, the happening, from this To prevent be damaged might as a result. nozzle in the is included circuit detection temperature abnormal circuit. selector firing: false for reasons possible are followings The AN4-ANO (Pins 1, 2, 9, 4) 1, 2, 9, 10, AN4-ANO (Pins It the printhead. inside IC is attached selector The nozzle data to serial according ink used to fire is which nozzle determines in included circuit detection A temperature ASIC (IC2). the from sent the in actuator each of temperature the detects selector nozzle the the If firing. false to avoid be performed must This PZT array. 5-row the no is ejected, ink but motion, the firing continues printhead 100 to rises printhead the inside temperature  AN7 (Pin 112) AN7 ICs; head ICs (the driver between 2 pre-driver The TH1, located around temperatures monitors board, on the main IC15 IC16) and to create developed exclusively IC is A board. Pre-Driver the model. the on depending vary which waveforms trapezoidal intricate trapezoidal produce to frequency and high VDC +42 uses It is it has occurred, trouble any relevant if Therefore, waveforms. this to detect The TH1 works is overheated. driver the that assumed stop and stage at an early temperature in rise of unexpected kind printing. (Pin 111) AN6 waveform trapezoidal (Q3 - Q6) used for power transistors Four (a sink heat the large to screws with attached are directly production by supported printhead the Since board. main the on plate) radiation (28.8 frequency driving very high 900 supports Color Stylus the from radiation PZT, of amount large a and ever, than higher KHz), production waveform trapezoidal used for transistor the discharging heat out forces board the on fan cooling the Therefore, huge. is plate radiation the on fixed thermistor A plate. radiation the around CPU to the allow to CPU the of port AN6 the to signals sends operation. on/off fan’s manage the cooling (Pin 110) AN5 sent signal is a temperature port to this input signal The electrical of The function unit. printhead in the included the thermistor from temperatures detect precisely to as before, same is, thermistor this main C265 the to information back feed and printhead the around manages printer the information, back fed the on Based board. trapezoidal drive head the of level voltage the in change subtle is it as ink of amount correct the eject can and also waveform, any temperature. aimed at

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 63    Revision C Revision the more the cartridge is removed/installed, the more more the removed/installed, is cartridge the more the ink eject not can printhead the and formed, are bubbles occurs. firing and false properly

life (6 months). Ink, in this condition, does not eject properly properly eject not does condition, this in Ink, (6 months). life is new cartridge a When firing. false a in results and solved. is problem the installed, of mis-handling this With times. several again installed then can not properly counter ink consumption the cartridge, the firing false a and level, ink remaining actual the describe replacing also is case this in solution The a result. as occurs a new with one. ink cartridge the printer, from the is removed cartridge If an ink Furthermore, a Unlike new cartridge. the inside comes in bubbles and air not is cartrides removed the inside ink the cartridge, into be absorbed can not inside bubbles the so deaerated, reason, this For condition. saturated the ink due to ink’s the C, the printer stops printing and automaticaly begins the begins automaticaly and printing stops printer the C, ° cleaning cycle. In this case, the printer runs the most powerful powerful runs the most printer case, the this In cycle. cleaning abnormal called bit address particular The cycle. cleaning point. at this reset is flag detection temperature detection: after Process temperature the until printing resume not does printer The In the case range. tolerable to the the PZT recovers around indicates it again, condition the same abnormal detects printer cartridge the to replace the to urge user error an ink-end reasons: possible following the considering 1. useful its far beyond is cartridge ink installed The currently 2. and removed repeatedly been has installed cartridge The False firing detection timing: detection firing False by the abnormal which are monitored any of the 5 channels, If 100 reaches selector, nozzle the in circuit detection temperature  False firing is detected in the following conditions, and the printer and the printer conditions, in the following detected is firing False below. as described it handles 

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 64 Revision C Revision PSC PE ASF HP CN15 CN5 4 4 14 15 16 LS2 COC LS1 COB CN8 CN9 20 21 21 20 +5 +5 +5 33 137 136 135 93 94 109 110 +5 +5 PSC COB COC SW A1 SW A0 SW C0 ENCB ENCA Figure 2-14. Sensor Circuit Block Diagram (Mechanism Status Detection Part) Detection Status (Mechanism Diagram Block Circuit Sensor 2-14. Figure E05B59(IC2) E05B60(IC3)

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 65 [Mechanism status detection part] detection status [Mechanism Revision C Revision Whether or not paper is set power on. is set at or not paper Whether the ASF the from fed with is properly or not paper Whether feed command. paper printed of a page ejects properly printer the not or Whether with the Feed) motor the PF (Paper rotating after paper distance. predefined the detect A used to sensor is photo method: Detection the by pushed/released is actuator the motion; actuator’s paper. the of edge leading/rear PE (Paper End) sensor: End) (Paper PE conditions: following the detects PE sensor The    ASF sensor: designed is phase that in the ASF are engaged the in parts Various wrong, mis- is the timing If timing. approariate paper at to the feed paper and ASF the by feeding paper between occurs match occur. will jam paper or non-feeding and printing, for transportation on power at condition sensor the monitors printer this Therefore, pump/ to the according is fed/ejected paper and after and before distance. roational ASF motor’s detection: on/off Power the on E05B60 (IC3) ASIC products, type switch primary-side Unlike operation power on/off the monitor used to C265 main board is panel control on the When power switch any sensor. the of instead at the is detected 5 level from change the ground V to off, turned is sequence off power the starts program the and IC3, the of 33 Pin by is supplied the sequence Power used during change. this with in circuit delay drop voltage the in C84 condenser electrolysis the electrolysis The board. C265 PSB/PSE the of side secondary the inside charge electric all until power supply to continues condenser discharged. completely is    Encoder: Irregular timing. ejection of ink accuracy increases sensor This can be caused by a paper jam, usually the carriage, movement of sensor. of this signals in input based the on change detected also (with belt encoder the by running is movement monitored Carriage photo the between dpi) 180 of increments with it on printed lines a large receiveds the printer if Also, the carriage. to attached sensor and read, be properly not cat signal input the printing, during impact problem. a dot missing with decreases quality print some in cases trapezoidal by producing one dot forms printer this is because This the by determined cycle the on based waveforms driving head encoder. the sent from signals sensor: cartridge Ink false (= installed any ink cartridge without drives printhead the If other with compared Also, unit. printhead the damages it firing), PZT and accordingly of number largest uses the printer this printers, the inside itself the ink reason, For this more heat. releases and the cartridge, inside the temperature to lower serves cartridge avoid to detected separately be can cartridges ink color and black firing. false when the ink detected is An cartridge ink process: Detection then pushes which the actuators, activates installed being cartridge micro switch. the sensor: position home CR the CR is the CRHP confirms sensor on, is turned When the printer sequence. seeking home position the during home position the in The afterwards. control CR the determine can printer the Then from signals on the based confirmed also is position column printing sensor. the interrupts flag when the is detected The carriage process: Detection end on the right located is which sensor beam in the photo light the mechanism. printer of the

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 66    Revision C Revision OUT A OUT OUT-B OUT-A B OUT +42 CN11 3 1 2 4 D/Axy M 62383(IC17) +42 8 +42 +42 +42 +5 8 7 6 9 15 28 14 VBB VCC GND OUTB OUT-B OUTA OUT-A LB1847(IC12) IA 1 IA 2 IA 3 IA 4 IB 1 IB 2 IB 3 IB 4 PHASE1 PHASE2 ENABLE1 ENABLE2 VREF1 VREF2 CR1 CR2 MD DECAY1 SECAY2 2 1 3 5 10 12 20 24 23 25 18 19 21 27 26 17 13 22 16 N.C. Figure 2-15. CR Motor Driver Circuit Block Diagram Block Circuit Driver Motor CR 2-15. Figure 173 174 175 147 148 149 150 163 162 161 160 143 170 144 169 171 172 CRCTL0 CRCTL1 CRCTL2 CRCTL‚R CRCTL‚S CRIA0 CRIA1 CRIA2 CRIA3 CRIB0 CRIB1 CRIB2 CRIB3 CRPHAA CRPHAB CRENBA CRENBB M otor sub control sub M otor N ot used N ot E05B59(IC2) M D signal DECAY signal 1 signal DECAY Phase C R A(B) signal selection Phase C R A (B) ENB (permission) signal Phase A signal setting current patterns) (16 Phase B setting signal current patterns) (16 DECAY signal 2 signal DECAY at chopping at Phase A constant

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 67 2.3.3 CR 2.3.3 Circuit Motor Driver phase 4W1-2 IC12) enables IC (LB1847: motor drive An exclusive the for used is motor stepping A micro basis. hardware on the excitation printing improve to also and accurately carriage the move to motor CR Figure printing. during vibration motor’s the minimizing by accuracy diagram. block circuit shows the CR driver 2-15 motor Revision C Revision

Minimum step Minimum 1/1920" (0.013 mm) (0.013 1/1920" 1/240" (0.106 mm) (0.106 1/240" mm) (0.053 1/480” mm) (0.026 1/960" Usage Moving from the the from Moving capping position Uncapping Not used Not skipping Sort SLQ print mode Wiping Capping

Table 2-16. CR Motor Excitation CR Mode and Table 2-16. Motor Excitation Usage Excitation mode Excitation 4W1-2 phase drive phase 4W1-2 1-2 phase drive phase 1-2 drive phase 2W1-2 2-2 phase drive phase 2-2 mode print LQ drive phase W1-2 mm) (0.212 1/120"

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 68 Unlike previous EPSON ink jet printers, the number of the phase of the number the EPSON jet printers, ink previous Unlike increased has printer this of IC drive motor the in ports input excitation 4 of excitation phase used total step system micro The to 8. previous PRO COLOR, Stylus both phases A and B. (Stylus for signals input 4- transfer they since exceptional, are series PRO XL Stylus and series, micro the because is This driver.) motor the ASIC to from data serial bit hand, On other only. the by the software was controlled stepping and is hardware using the phase excitation 4W1-2 the enables LB1847 for current ports) (8 ports of input number necessary the with equipped to each are allocated 4 ports ports, Among these input signals. setting be can data setting current of types 16 Therefore, B. A and phase, stepping the micro The LB1847 controls IC. driver sent to the constantly on combinations phase the based corresponding the by exciting system from the ASIC. sent signals setting of the their and CR motor the for used modes excitation the shows 2-16 Table usage. Revision C Revision A PFF PFF -A PF B PF PF-B +42 3 1 2 4 CN10 D/Axx M 62383(IC17) +42 3 +42 +42 +42 +5 8 7 6 9 15 28 14 VBB VCC GND OUTA OUT-A OUTB OUT-B LB1847(IC11) IA 1 IA 2 IA 3 IA 4 IB 1 IB 2 IB 3 IB 4 PHASE1 PHASE2 ENABLE1 ENABLE2 VREF1 VREF2 2 20 25 24 23 18 19 21 27 26 17 13 22 16 N.C. Figure 2-16. PF Motor Driver Circuit Diagram Block Circuit 2-16. Driver PF Motor Figure 140 139 138 137 133 134 135 136 142 128 141 129 124 127 125 126 123 PFIB0 PFIB1 PFIB2 PFIB3 PFIA0 PFIA1 PFIA2 PFIA3 PFPHAA PFPHAB PFENBA PFENBB PFCTL0 PFCTL1 PFCTL2 PFCTL‚R PFCTL‚S E05B59(IC2) M otor sub sub M otor control Phase C R A(B) signal selection Phase A signal setting current patterns) (16 Phase B setting signal current patterns) (16 Phase C R A (B) ENB (permission) signal

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 69 2.3.4 PF Motor2.3.4 Circuit Driver phase 4W1-2 enables IC11) IC (LB1847: exclusive drive Motor PF the for used is motor stepping A basis. hardware the on excitation printing to improve and also accurately to move the carriage motor Figure printing. during vibration motor’s the minimizing by accuracy diagram. block circuit shows the PF driver 2-16 motor Revision C Revision Minimum step Minimum 1/1440"(0.018 mm) mm) 1/1440"(0.018 mm) 1/5760"(0.004 mm) 1/11520"(0.004 Usage Fast feed 1 feed Fast 2 feed Fast feed fast Special feed Middle-speed feed Normal feed adjust Micro feed Slow

Table 2-17. PF Motor Excitation Mode and Usage Mode and Excitation PF Motor 2-17. Table Excitation phase Excitation 1-2 phase drive phase 1-2 drive phase 2W1-2 2-2 phase drive phase 2-2 used Not drive phase W1-2 mm) used Not 1/720"(0.035 drive phase 4W1-2 mm) 1/2880"(0.009

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 70 Unlike the previous the number pf Unlike EPSON the previous phase the ink jet printers, increased has printer this of IC drive motor the in ports input excitation 4 of excitation phase used total step system micro The to 8. previous Stylus COLOR, (Stylus B. Phase A and Phase both for signals input they since exceptional, are series XL PRO Stylus and PRO series, because This is data from motor driver.) ASIC to the serial 4-bit transfer On other only. the by the software was controlled micro stepping the and the hardware using 4W1-2 phase excitation LB1847 enables hand, for ports) (8 number ports of input necessary with the equipped is to each 4 allocated are Among ports, 8 input signals. setting current be can data setting current of types 16 Therefore, B. A and phase, stepping the micro The LB1847 controls IC. driver sent to the constantly on combinations phase the based corresponding the by exciting system from the ASIC. sent signals setting of the their and motor PF the for used modes excitation the shows 2-17 Table usage. Revision C Revision ASF A ASF -A ASF B ASF ASF-B 2 4 3 1 CN12 +42 M 62383(IC17) D/Axy +42 +42 4 +42 22 15 15 22 OUTA OUTB OUTA OUTB A3957(IC13) A3957(IC14) REF 8 8 10 20 13 11 10 11 20 13 69 68 62 64 63 81 80 72 74 73 Figure 2-17. Pump/ASF Motor Driver Circuit Diagram Block Circuit 2-17. Driver Pump/ASF Motor Figure ASFPHAA ASFIA0 ASFIA1 ASFIA2 ASFIA3 ASFIB0 ASFIB1 ASFIB2 ASFIB3 ASFPHAB E05B59(IC2) signal Phase A specified Phase B setting signal current patterns) (16 Phase B specified signal Phase A setting signal current patterns) (16

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 71 2.3.5 Pump/ASF Motor Driver Circuit 2.3.5 IC14) enables the CR and the PF (IC13, A3957 motor for motor, Like on the excitation phase 4W1-2 motor pump/ASF to perform the circuit driver 2-17 shows the motor pump/ASF Figure basis. hardware Phase A and the and IC14 drives IC13 Among 2 drivers, diagram. block respectively. B, Phase Revision C Revision 2.3.6 Printhead Driver Circuit 2.3.6 common voltage the of 2 circuits: consists circuit driver The printhead C265 on the circuit) production waveform trapezoid (a circuit production The pre-driver printhead. the on and nozzle selector main board transistors and the waveform trapezoid 16) produces CXA2128 (IC15, is data) data (serial products, previous Unlike it. (Q3 - Q6) output in reduction row to enable to each nozzle transferred independently is selection nozzle while one dot, form to required time latch data nozzle the to directly data serial sends which ASIC, by performed (A block signal. the clock with synchronizing printhead on the selector included are not nozzle selector for the diagram and the circuit diagram shown in is diagram block circuit driver The printhead manual.) in this 2-18. Figure Minimum step Minimum 1/720" (0.035 mm) mm) (0.035 1/720" mm) (0.004 1/11520" 1/1440" (0.018 mm) mm) (0.018 1/1440" mm) (0.004 1/5760" Usage Fast absorption Fast absorption Semi-fast feed Fast drive Constant feed Slow Slow absorption Micro absorption Micro absorption Normal feed Normal

Table 2-18. Mode Motor Table Excitation Pump/ASF and Usage 2-18. Excitation phase Excitation 2-2 phase drive phase 2-2 drive phase W1-2 used Not drive phase 4W1-2 mm) (0.009 1/2880" 1-2 phase drive phase 1-2 drive phase 2W1-2

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 72 Table 2-18 shows the excitation modes used for the pump/ASF motor motor pump/ASF the for used modes excitation the shows 2-18 Table usage. their and Revision C Revision AN data (temperature detection fo r e a c h c o lo r) Trapezoid waveform waveform Trapezoid signal reverse C o lo r n o z le ro w I/C detection signal detection I/C lc ozerws row nozzle Black - Data latch signal signal latch Data - selection Nozzle - signal Clock - C o lo r n o z z le ro w s H ead tem perature circuit detection COC COB LAT CLK Y M C B1 B2 IN V ANODE5 THM ANODE1 ANODE2 ANODE3 ANODE4 VHV COMa COMb COMc COMd COMe CN8 CN9 6 5 9 7 6 1 1 2 9 4 17 14 13 11 21 19 20 17 15 13 19 10 +42 F1 106 107 108 109 105 Q3 Q4 Q5 Q6 AN0 AN1 AN2 AN3 AN4 AN5 CPU(IC1) C harging/discharging nozzles color for C harging/discharging circuit C harging/discharging nozzles black for C harging/discharging circuit 23 22 20 18 16 22 20 18 16 23 110 VCC45 VC C 45_2 NPNB FB PNPB VCC45 VC C 45_2 NPNB FB PNPB C XA2128(IC16) C XA2128(IC15) A0 A1 A2 A3 CLK1 CLK2 /FLOOR DATA DCLK /E A0 A1 A2 A3 CLK1 CLK2 /FLOOR DATA DCLK /E 3 4 5 1 3 4 5 1 28 27 25 27 26 29 30 28 26 25 29 30 Figure 2-18. Printhead Driver Circuit Block Diagram Block Circuit Driver Printhead 2-18. Figure 113 111 120 119 118 115 116 121 114 112 HW A0 HW A1 HW A2 HW A3 HW CLK1 HW CLK2 /H W F L R HW SDATA HW SLC /H W S L A T E05B59(IC2) COC COB HLAT HSOCLK HSO_Y HSO_M HSO_C HSO_B1 HSO_B2 HINV 97 98 99 100 101 108 110 109 107 102

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 73 E rro r 1

Revision C Revision YES C C ° ° NO or E rro r 1 Fan OFan n t2 >/= 60 60 >/= t2 t1 >/= 60 60 >/= t1 YES C C ° ° Fan OFan ff NO or t2 >/= 55 55 >/= t2 t1 >/= 50 50 >/= t1 R e tu rn to th e S ta rt. t1 = H eat sink tem perature on the C board 265 m on the ain tem perature sink = H eat t1 C265 borad. m on the ain = TH 1 tem perature t2 YES YES YES C C C C ° ° ° ° NO NO NO or Is or Figure 2-20. Main Routine of the Cooling Fan Drive Fan Cooling the of Routine Main 2-20. Figure th e fa n Start ro ta tin g ? t2 >/= 42 42 >/= t2 t2 >/= 50 50 >/= t2 36 >/= t1 t1 >/= 40 40 >/= t1 Figure 2-20 shows the main routine of the cooling fan drive. cooling of the shows the main routine 2-20 Figure FAN +35 GND CN13 1 2

On

F6 (0 VDC) Off 39 K Cooling fan condition fan Cooling +42 6.8 D rops to 35 V. to D rops Low High (5 VDC) 176 ASIC (IC2, 176- pin) condition pin) 176- ASIC (IC2, Table 2-19. by Fan Table 2-19. Cooling the Control ASIC (IC2) FAN Figure 2-19. Cooling Fan Driver Circuit Block Diagram Block Circuit Fan Driver Cooling 2-19. Figure E05B59(IC2) EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 74 2.3.7 Cooling2.3.7 Fan Driver Circuit 480 of (total elements PZT of number large a drives printer this Since 32.4 K Hz), heat (maximum frequency a drive with high nozzles) production waveform and the trapezoid the printheads around radiated other to compared large considerably is board C265 main on the circuit to fixed sink heat the to attached is a thernmistor Therefore printers. trapezoid the to prevent transistors production waveform thetrapezoid HIC from adjacent and Q6) - (Q3 transistors production waveform When thermistor the due to high temperature. abnormally operating fan cooling the turns printer the temperature, high abnormally detects the shows 2-19 Figure case. lower the from heat out blow forcibly to on 2-19 the shows how Table diagram. block circuit fan driver cooling fan conditions. ASIC from the corresponding and output signals Revision C Revision This failure can be caused by one of the following 4 reasons: following can be caused by one of the failure This defective. is itself CRHP sensor - circuit. in the is a deficiency - There - Incorrect PG adjustment defective is motor CR - reasons: following can be caused by one of the failure This is defective. - ASF sensor itself circuit. in the is a deficiency - There damaged. is ASF - - Pump/ASF motor is defective. completely. Therefore, this printer specifically shows a fatal error on the the on error fatal a shows specifically printer this Therefore, completely. the to addition in temperatures abnormal detecting when panel control 2 common conditions. following 1. detection: position home CR in Failure 2. in detection: ASF home position Failure C ° 42 ≥ C at both and C at both t1 ° Cooling fan: fan: Cooling 36 C or t2 or C 36 °

Stops operating. Stops ≥ Ct1 Ct1 ° 50 ≥ Operating Cooling fan: Cooling 40 C or t2 or C 40 °

≥ t1 Table 2-20. Conditions for Driving the Cooling Fan the Cooling for Driving Table 2-20. Conditions Thermistor condition Thermistor t1 andt2 have detected temperatures.

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 75 t2), and the printer generates a fatal error after stopping printing printing stopping after error fatal a generates printer the and t2), Whether or not the cooling fan is driven depends on the electrical the on depends electrical driven fan is cooling or not the Whether The “t1” the figure). in “t2” and (“t1” 2 thermistors the sent from signals the to attached by the thermistor detected temperature the represents “t2” the while screw, a with board main C265 the on sink heat and ICs (IC15 pre-driver printhead the one the between represents thermistor shows the Table 2-20 board. on the C265 main IC16) operation. fan corresponding and condition Even while the printer is in idle status, the thermistors continue to detect detect to continue thermistors the status, in idle is printer the while Even 2 However, operation. fan cooling the 2 seconds for every temperatures air since main routine, in the be detected can conditions status error is grill ventilation the or defective is fan the down if cool not may clogged. 1] [Error the lowering by print to continues but printing stop not does printer The head the with prints normally printer the instance, For frequency. drive at (horizontal) print 1440-dpi of 14.4 K Hz to perform frequency drive can the printer however, condition, error In the cps speed). 200 (CR to CR speed by reducing Hz K 7.2 to frequency drive head the lower / 1-pass at 1/3 duty printing performs actually printer Note the cpi. 100 speed. normal a of 2] [Error at the the temperature condition, In this printing. stops The printer and production waveform trapezoidal for power transistor the of junction limit the to risen has (pre-driver) IC production waveform trapezoid the 60 over detected have thermistors the means (which C ooling fan C ooling VBB GND

Revision C Revision 2 1 CN16 +42 F4 Q9 Q8 83 Figure 2-21. ASF Solenoid Control Circuit Block Diagram Circuit Control ASF Solenoid 2-21. Figure ASF_SOL E05B59(IC2) C) ° Non-inducting Specifications Solenoid’s condition Solenoid’s 5% ± 10% (at 20 (at 10% ±

Ω 42 VDC 42 or more gf) (100 N 0.98 Items Low Low (0 VDC) High (5 VDC)High Inducting Table 2-21. Specifications ASF Solenoid 2-21. Table Drive voltage Drive Induction 2 4 3 resistance Coil 588 1 Type solenoid DC Single-phase Table 2-22. Conditions for Driving the ASF Solenoid for Driving Conditions 2-22. Table No. ASIC’s (IC2, 83-pin) condition 83-pin) (IC2, ASIC’s

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 76 2.3.8 ASF 2.3.8 Driver Solenoid Circuit paper between switches which train gear the used in is gear A planetary action The switching from the ASF and pump operation. operation feed show which 2-21 and Figure 2-21 See Table solenoid. the by enabled is block circuit control solenoid ASF the and specifications solenoid ASF respectively. diagram, ASF the driving for conditions (IC2) ASIC’s the shows 2-22 Table solenoid. Revision C Revision DRAM(IC5) Data Address E05A60(IC3) ECS ESK EDI EDO 29 30 31 32 1 2 3 4 SK DI DO Figure 2-22. EEPROM Control Circuit Block EEPROM Block Diagram 2-22. Figure Circuit Control AT93C 56(IC7) Vcc ORG GND 8 6 5 +5

EPSON Stylus Color 900 EPSON Color Stylus PrinciplesOperating Principles Operation Circuit Electrical 77 2.3.9 EEPROM Control Driver Circuit Driver Control EEPROM 2.3.9 EEPROM the in is stored items factory-adjustment various for Data The size (IC7) on the C265 main EEPROM board. of the 2 is K bit since and memory printer this with available are dots of types various large. accordingly is counter consumption ink the for allocated in the EEPROM stored is on, transferred data is turned When the printer D-RAM to the by the In the ASIC ASIC controls D-RAM, (IC3). the usage ink and current consumption, ink total values, adjustment various on depending these prints and the printer color, each for condition values adjustment and data the off, turned is printer the When values. the back into the D-RAM written in are and controlled accumulated in control. the EEPROM the ASIC’s addresses under specific and the EEPROM the ASIC (IC3) in between is transmitted Information format. data serial the 

TROUBLESHOOTING Revision C Revision Following sections show detailed information on each step in the in the on each step information show detailed sections Following the neglecting without troubleshooting perform to Be sure flowchart. section. each in specified order correct Yes (Section 3.1.3) (Section Is the printer power on? power printer the Is (Section 3.1.1) (Section Troubleshooting with with Troubleshooting indications LED error Isolating the faulty part part faulty the Isolating the to according phenom enons exhibited No Figure 3-1. Troubleshooting Flowchart Troubleshooting 3-1. Figure (Section 3.1.2) (Section Isolating the faulty part part faulty the Isolating supply pow er on the board

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 79 3.1 Overview the of consists It problems. how troubleshoot to describes chapter This and When identifying below. flowchart shown in the sections section correct to the to proceed sure be problems, troubleshooting flowchart. in the specified Revision C Revision Possible Causes Possible The sensor base is not fixed properly. dust. with error a fatal off, come completely If it has dislocated. occurs. or dust. debris paper with The sensor base is not fixed properly. is defective. The encoder properly. fixed not is roller sub load paper The 2. disconnected. is sensor PE the for Connector 3. improperly. acting is actuator PE sensor The 4. defective. is PE sensor The 5. damaged. ASF is 1.specified. than longer is use in paper The 2. covered is carriage the of back at the encoder The 3. almost is carriage the of back at the encoder The 4. covered is it because on remains PE sensor The 5. properly. acting not is actuator PE sensor The 6. defective. is PE sensor The 7. properly. installed not ASF is The 1.feeding paper in Failure ) ) Error Condition Table 3-2. Error Condition and the Possible Causes Possible the and Condition Error 3-2. Table Paper Jam Error Jam Paper Section to (Refer 3.1.1.2. (Refer to Section Section to (Refer 3.1.1.1. 1Error Out Paper 2 No. See the following tables which show the error conditions and conditions error the show which tables following the See causes. possible corresponding ------Blink Blink Blink Paper Out Paper Off Off On On (Color) (Color) Ink Out Out Ink ------Off Off On (Black) Ink Out Out Ink ------On --- Corresponding Combination of the LED Condition of the Combination Corresponding Blink Blink Blink Blink Blink Blink Power Table 3-1. Error Indication the LEDs with Indication Table 3-1. Error

“---” means the LED is not affected by the error condition. error the by affected not is LED the means “---” Maintenance Maintenance Error Error Condition Error Jam Paper Out or Ink No I/C Error (Color) Error Fatal Paper Out Error Out Paper On ------On EPSON Stylus Color 900 EPSON Color Stylus Out or Ink No I/C Error (Black) Troubleshooting Overview 80

3.1.1 Troubleshooting3.1.1 with LED ErrorIndications when the problem the how to troubleshoot describes section This The Stylus at power on and can not print. an error indicates printer the them with and indicates errors six the following can detect Color below. shown as LEDs, NOTE: Revision C Revision

Paper is set in the ASF hopper but not fed. not but ASF hopper the in set is Paper printer. by the detected but fed not Paper is in described the action Yes, take is the question for the finding If the next step. proceed to “No”, If column. the right   3.1.1.1 Remedies for Paper Out Error Out for Paper Remedies 3.1.1.1 are which actions and corresponding points check provides section This of because has occurred problem Out Error Paper the when necessary reasons: following of the either Be sure to follow the steps in the order described in the tables. the in described order the in steps the follow to sure Be NOTE: Possible Causes Possible The connector for is disconnected. the CRHP sensor connectorThe The connector (green) is disconnected. is (green) connector The is side surface printhead the to attached directly is 4-pin) (green, connector the Note disconnected. irrelevant as it is for the encoder. destroyed. is EEPROM detected. is temperature abnormal an encoder the through placed not is belt encoder The carriage. of the back the at located disconnected. is sensor ASF for the connector The frame. The tension spring is dislocated. level. 1. has CRHP sensor come The off. 2. properly. acting not is actuator sensor cartridge Ink 3. correctly. mounted not is switch micro The 4. board small the on 3-pin) (green, connector The 5. is defective. switch The micro 6. the in counter consumption ink the for value The 7. because generated is command replace cartridge Ink requested. is over-flow ink waste Usual function special the by cleared be can error this Note only. operation panel control the through 2. off. come has belt encoder The 3. off. come has sensor ASF The 4. burnt. has CR motor the for coil The 5.burnt. has PF motor the for coil The 6. of the come has gear planetary the fixing lever The 7. burnt. has motor pump/ASF the for Coil 8. burnt. has ASF solenoid the for coil The 9. is defective. CRHP sensor The 10. The ASF sensor is defective. 1. ink remaining actual the showing not is counter The ) ) ) Error Condition (Refer to Section Section to (Refer 3.1.1.5. Maintenance Maintenance Error Section to (Refer 3.1.1.4. Error Section to (Refer 3.1.1.3. 5 Error Fatal 4 3 Out Ink I/C or NO Table 3-3. Error Condition and the Possible Causes (continued) Causes Possible the and Condition Error 3-3. Table No. EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 81 BLK M/C M/C WHT

Revision C Revision RED

M/C CRH PE ASF Actions Pin 2 (GND) 2 Pin Pin 3 (PE) 3 Pin

Even though the ASF sensor is in the in the is ASF sensor the though Even HP the detecting for condition proper the at operating not is hopper the If sensor, is paper feeding, for paper timing correct is sensor ASF the if Therefore, loaded. not combination, correct this without working ASF. the replace or reassembly

Measure the voltage at the yellow 3-pin connector connector 3-pin yellow the at voltage the Measure on the relay board by activating the actuator as correct is voltage the that check to manually follows. or more V 2.4 activated: is actuator The less V or 0.7 released: is actuator The every out hops hopper the if check and direction shaft. the rotate you time NOTE: Check point Check defective? 5 damaged? ASF the Is feed paper the in ASF the in shaft the Hand-rotate 4 sensor PE The Is Step Staplers C loth moistened moistened C loth alcohol w ith (Use a post card (Use card a post sheet.) base the for Tension spring Tension Actions C L Sheet Bottom view of the printer mechanism printer the of view Bottom Adhesive Area Adhesive down side This N on-adhesive Area N on-adhesive C onnector for the the for C onnector PE sensor same condition as it is detecting incoming paper. Then actuator the if check and actuator the release the with position original to its returns automatically tension of the spring. the If frame. to the installed securely is base sensor sensor base is floating or installedinsecurely, instal it securely. Set a cleaning sheet in the ASF up side down. Then Then down. side ASF up the in sheet cleaning a Set and button, Load/Eject the press edge, top the holding semicircular (a roller load paper the on pearl micro the smear, severe remove To removed. is surface roller) and card a post to alcohol with moistened a cloth staple cleanthe roller in the samemanner. Connect the connector (yellow, 3-pin) for the PE sensor. the for 3-pin) (yellow, connector the Connect • the in actuator the activating try hand, your Using • the that check above, illustration to the Referring Table 3-4. Remedies for Paper Out Error Paper Out Error 3-4. Remedies for Table Error (continued) Out Paper 3-5. for Remedies Table sensor sensor acting actuator improperly? floating? base Check point Check loaded? for the PE sensor disconnected? • PE the Is • sensor the Is 1 paper no Is 2 connector the Is 3 Step EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 82 Revision C Revision PE Sensor Actuator C arriage Unit C arriage PF Roller PF Actions Encoder Linear Scale Linear (Encoder belt) (Encoder PE Paper Guide PE Guide Paper A ssem (Right) bly Viewing the PE sensor from the front, check that actuator the position: correct the is actuator the paper. any without cutout the in falls Referring to the illustration above, check if the if the check above, illustration the to Referring the from dislocated nearly is belt encoder encoder. Check if there is any dust or paper debris lodged lodged debris paper or dust any is if there Check transmission (a encoder of the parts the between the of back the at located sensor) photo type carriage. Instruct the user that the Paper Jam Error occurs occurs Error Jam Paper the that user the Instruct specifications the beyond is length whose if paper used. is Table 3-6. Remedies for Paper Jam Error Jam Error for 3-6. Paper Remedies Table Check Points Check on because of the paper paper the of because on dust or debris accumulated over the sensor. nearly dislocated from from dislocated nearly encoder? the at the back of the of at the back CR the dust? with covered beyond the the beyond specifications? 4 always sensor PE the Is 3 Is the encoder belt 2 located encoder the Is 1 length paper the Is Step

If the finding for the question is Yes, take the action described in in described the action Yes, take is the question for finding the If the next step. proceed to “No”, If column. right the

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 83

3.1.1.2 Remedies for the Paper Jam Error Jam Paper the for Remedies 3.1.1.2 which actions corresponding and points check the includes section This when the occurs constantly when the Paper Jam Error are necessary paper. on feeding turned is or printer tables. in the order described in the the steps Be sure to follow NOTE: View A View

Revision C Revision Tension Spring Tension D isconnected View A View Actions View B View Top Frame View B View Protrusion is set in here. in set is Protrusion points: View A and View B in the figure below. figure the B in View A and View points: paper the securing springs torsion six of the installed. properly are rollers sub load • 2 following the at installation ASF the Check • all that check back, the from printer the Viewing Check Points Check improperly? load paper the of any Is fixed rollers sub improperly? 7 ASF installed the Is Step H ead surface C onnector 2 C onnector Actions C heck for C heck for continuity. C arriage viewed from the back the from viewed C arriage C onnector 1 C onnector Referring to Step 3 in Section 3.1.1.1 “Remedies “Remedies 3.1.1.1 Section 3 in Step to Referring condition. sensor the check Error”, Out for Paper “Remedies 3.1.1.1 Section 4 in Step to Referring condition. sensor the check Error”, Out for Paper by condition sensor encoder the verify Then, connection for proper points following the checking signal the checking since continuity, electrical and impossible. is encoder the from directly 1. 1 connector the of Connection 2. 2 connector the of Connection 3.cable. the of continuity Electrical Check Points Check actuator acting acting actuator improperly? floating? defective? defective? • PE sensor the Is • base sensor the Is • PE sensor the Is • encoder the Is Table 3-7. Remedies for Paper Jam Error (continued) Jam Error 3-7. Paper Remedies for Table (continued) Error for Jam Paper Remedies Table 3-8. 5 6 Step EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 84 Revision C Revision Actuator 2 Actuator Actions M icro Sw itches M icro Actuator 1 Actuator starts false firing, which damages the printhead. the damages which firing, false starts printer shows the Ink low or Ink end condition and and condition end or Ink low Ink the shows printer can not continue to print. The ink consumption counter, separately set for black black for set separately counter, consumption ink The weight ink to according points up adds ink, color and value (the reset is counter This dot. one form to used is sequence replacement I/C the when zero) to returns other any for reset is counter If the performed. purposes, the following adversities will occur. 1.the but cartridge, the in remaining is ink Enough 2. and print to continues printer the but out run has Ink the replace and well, user the to situation the Explain new one. a I/C with and manually left) and (eight actuators both the Turn switches. micro the push properly they that check to their return actuators the that check also Then, below figure in the shown conditions normal automatically. Check Point Check Table 3-9. Remedies for for No I/C Remedies Out Errors and Ink Table 3-9. sensor actuator improperly? acting value mis-match the ink remaining actual level? Step Step 2 cartridge ink Is the 1 counter the Does

If the finding for the question is Yes, take the action described in in described the action Yes, take is the question for finding the If the next step. proceed to “No”, If column. right the

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 85

3.1.1.3 Remedies for No I/C and Ink Out Errors and Ink for No I/C Remedies 3.1.1.3 which actions corresponding and points check the includes section This blinks on or LED comes ink) color (or ink black the when necessary are a new one. with been replaced has cartridge ink the on despite power at tables. in the order described in the the steps Be sure to follow NOTE: Revision C Revision Actions operation solves the nozzle clogging problem in problem clogging nozzle the solves operation cases.) most generates and flag a sets again, temperature LED Ink (The command. I/C replacement the on.) comes I/C) the of reinstallation and to removal large impact. printing. If the address for the ink consumption information information consumption ink the for address If the shows printer the and garbled is EEPROM the in printer the constantly, error End) (Ink Out Ink the stops and High “BUSY” to signal interface the sets communication with anyother peripheral devices. a I/C with the replace to effective is it Therefore, 00H. with address the overwrite to forcibly one new Since the Stylus Color 900 drives a large number number a large drives 900 Color Stylus the Since printhead if the frequency, drive high a with of PZT printhead the it, in filled ink any without driven is the as damaged be may up and heats abnormally controls and monitors printer this Therefore, result. strictly more printhead the around temperature the printer the In case do. printers other any than during temperature head in rise abnormal detects replacement I/C the generates it printing, below. described sequence the after command 1. during temperature abnormal an Detects 2. (This cleaning. a head and begins printing Stops 3. printing. Resumes 4. head the in rise abnormal an If detects the under sequence this enters mostly printer The conditions: two following • (due viscous. severely is nozzles the around Ink • a of because printhead the from leaking is Ink rises actually printhead the in temperature The nozzle in any nozzles the half when abnormally 96-nozzle any in nozzles 48 or clogged, are row clogged. are row Check Point Check destroyed? temperature detection detection temperature working? circuit 6 the data EEPROM in Is 7 abnormal the Is Step Push 2 Push Step2 M icro Sw itches M icro H ooks Actions Push 1 Push Step1 C onnector place the probes of the tester to the middle middle the to tester of the probes the place continuity. electrical for check to pins right and place the probes of the tester to the middle middle the to tester the of probes the place continuity. for electrical check to pins left and Remove the printhead and check if the connector small the from disconnected is 3-pin) (green, of the printhead. at the bottom board the for is it as irrelevant is 4-pin green The Note: encoder. If the micro switch is not properly attached, the the attached, properly not is switch micro the If switch. micro the touch to fail possibly actuators is switch micro the that check Therefore, hooks. the by carriage the to attached securely 1. Keeping the left micro switch pressed down, 2. down, pressed switch micro right the Keeping Check Point Check Is the connector (green, (green, connector the Is 3-pin) disconnectedform is which board small the the to attached directly side? surface head improperly? (green) connector the Is disconnected? defective? 4 3 Is the micro switch fixed 5 Is the micro switch Table 3-10. Remedies for No I/C and Ink Out Errors No and Ink Out Errors (continued)for Remedies I/C 3-10. Table No and Errors Out (continued) 3-11. I/C for Remedies Ink Table Step

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 86 Revision C Revision Correct LED condition Correct LED The Paper Out LED is is blinking. LED Out The Paper The followingthree red LEDs LED Out Ink blinking: are LED (Color), Out Ink (Black), LED. Out Paper and waiting timer, secures the printer printer the secures timer, waiting bubbles so time of period specific a during printhead the around formed vanish. cleaning Auto, items: 4 from selection I/F and Option. Serial, Parallel, Actions Table 3-12. Remedies for the Maintenance Error Maintenance the for Remedies 3-12. Table Load/Eject and the Cleaning buttons, and and buttons, Cleaning the and Load/Eject (Blinks blinking. LED starts Out Paper the seconds.) three for button Cleaning the press seconds), three seconds. ten for During the Step 2, if the Load/Eject button is pressed, the is pressed, button the Load/Eject 2, if the Step During EEPROM initialization the but cleared not is Error Maintenance be can initialization EEPROM The instead. activated is mode does not such as the printer from conditions used to recover mode the PC. The EEPROM any data from initialization accept initializes thefollowing items: Accumulated power-off time:The value for the Timer reset. Timer IC is for the value time:The power-off Accumulated CL Timer: selection:I/F fire- called is also which The CL timer, default, factory the “Auto”, Selects 1 the pressing while on printer the Turn 2 (for blinking is LED Out Paper the While Step Step

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 87

3.1.1.4 Remedies for the Maintenance Error Maintenance the for Remedies 3.1.1.4 operations all disables it condition, error in this is printer the While specified panel operation for the except data communication including to 3-12 in Table described the steps follow Therefore, the error. clear to problem. the solve NOTE:    Step 2 Step

M/C RED WHT M/C R EASF PE CRH

Revision C Revision BLK To Pin 1 To Pin To Pin 2 To Pin

C onnector 2 C onnector To Pin 4 To Pin M/C Actions 10%> 10%> Step 1 Step ± ±

To Pin 3 To Pin Ω Ω CR Motor ASF Sensor C onnector 1 C onnector ASF Frame (Left) Referring to the figure below, check that the ASF the that check below, figure the to Referring position. correct the to attached is sensor securely are 2 1 and connectors both that Check connected. Bipolar the by controlled is CR motor the Since tester the using resistance coil the measure system, below. shown as 5.8

M/C RED WHT M/C

C onnector 2 C onnector R EASF PE CRH BLK Actions M/C C onnector 1 C onnector M echanism e Fram Check the CRHP sensor visually. Check CRHP sensorthe the Connect is connector the sure Make properly. connector relay the on position indicated the to connected paper nor dust no is there that check Also, board. parts. sensor the between debris the that check 3.1.2.2, Section 2 in step to Referring Also parts. sensor the between set is belt encoder paper and dust from free is sensor the that check debris. Table 3-13. Remedies for Fatal Error Fatal for Remedies 3-13. Table Check Point Check sensor come off the off the come sensor mechanism printer frame? for connector the Is CRHP sensorthe disconnected? come off? come If the finding for the question is Yes, take the action described in in described the action Yes, take is the question for finding the If the next step. proceed to “No”, If column. right the 1 CRHP the Has 2 2 belt encoder the Has Step

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 88

3.1.1.5 Remedies for Fatal Error Fatal for Remedies 3.1.1.5 conditions: following by any of the caused basically is error A fatal 1. position. in the home the carriage does not detect The printer 2. scale. the linear from signals does not detect The printer 3. position. home ASF the detect not does ASF sensor The and of the error causes show various tables The following solve to correctly steps the to follow sure Be solutions. corresponding problems. the NOTE: BLK M/C M/C WHT

RED

Revision C Revision M/C CRH PE ASF Actions To Pin 3 To Pin (CRHP) To Pin 2 (GN DTo Pin ) voltage rises to 2.4 VDC or higher. or VDC 2.4 to rises voltage lower. or VDC 0.7 to drops voltage Check for the correct voltages at 3-pin connector connector 3-pin at voltages correct the for Check below. figure the in shown correct is voltage the check and on printer the Turn as follows: • the position, home the in come has CR the When • the position, home the left has CR the When as manner same the in voltage proper the for Check connector ASF The step. previous the in described in shown also is board relay the on location (3-pin) the also is configuration pin The above. figure the sensor. CRHP as same performed, is operation reset ASF the on, At power position. ASF home detects ASF Sensor the and Check Point Check defective? defective? 9 Is CRHP sensor the 10 ASF sensor the Is Step Step Tension Spring Tension 10%> ± ± he Solenoid Lever Fixing the the Fixing Lever G ear Planetary

Iron Core in in Core Iron t Ω Ω Solenoid Check if the two two if the Check securing hooks gear planetary the the to lever fixing switch Pump/ASF mechanism are the from released frame. Also, check the spring’s tension condition. pump/ASF of the resistance coil internal the Measure 4). (Step motor CR the for as manner same the in motor 7.0

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 89 CN3 Side CN3

Revision C Revision T1 (reverse side) (reverse CN5 Side CN5 Action CN2 side CN2 L1 (reverse side) L1 (reverse CN1 side CN1 Table 3-18. 3-18. Table Check that the connectors CN5 and CN6, which which CN6, and CN5 connectors the that Check are used to inputpower from the powersupply connected. properly are board, supply power of the side reverse the Viewing two the at continuity proper for the check board, below. figure the in indicated points the if check below, figure to the Referring Try poles. the between disconnected is transformer a with marked group each in combination every box. blue Check Point Check main board board main disconnected? broken? broken? 6 Is CN 5 orCN6 on the 7 Is the choke coil 8 (T1) transformer Is the Step Isolating the Faulty Part on the Power Supply Board (continued) Board Supply Power on the Part Faulty the Isolating 3) Control → Action 2) Relay board board Relay 2) → Panel. CN1 the beside located F1 the in line the if Check blown. has board supply power the on which CN3, and CN2 connectors the that Check are board, main the to power apply to used are connected. properly The power switch for this printer is in the secondary secondary the in is printer this for switch power The transfer not does FFC the if Therefore, side. the despite operate not does printer the signals, are board main the and board supply power connected. properly the on switch power the uses printer This not does FFC the if Therefore, side. secondary operate not does printer the signals, transfer board the main and board supply the power despite connected. properly are above. as same the is reason The CN15 1) via connected are FFCs control panel The on the main board Check Point Check the power supply board board supply power the blown? board supply power disconnected? disconnected from the the from disconnected panel the on connector board? disconnected from the the from disconnected 12- (black, connector board? relay the on pin) the from disconnected CN15 on the main board? The printer is turned on, but the initialization is not performed and is not performed on, but the initialization turned is The printer panel do not LED on come on. control the on power after Problems 5 IsCN2 orCN3 on the 1 1 FFC Is the panel 2 2 FFC Is the panel 4 on (F1) fuse the Has 3 connector the Is Step Table 3-17. Isolating the Faulty Part on the Power Supply Board Power Supply on the Part Faulty the Isolating 3-17. Table EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 90 3.1.2 Isolating the Faulty Part on the Power Supply Board problems: the following how to troubleshoot explains section This   the because specified, order the in troubleshooting perform to sure Be facilitate to procedure disassembly the in mentioned are involved parts servicing. E E

Revision C Revision + IC 5 1 C C - Step.2 Step.4 B B + - C E Action PNP Tr B GND + E E -i(S ) 5-pin(OSC - C C Step.3 Step.1 B B - + O s c illa tio n w a v e fo rm Table 3-20. 3-20. Table Check the PNP connection transistor on the C265 C265 the on transistor connection PNP the Check in described manner same the in PSB/SE board step. previous the 4: On Step Off, 3: Step On, 2: Step Off, 1: Step waveform oscillation the for IC51 the Check from output scope) oscillo a using by (measured shown as is waveform output If the 5. Pin the properly. working is IC51 the it means below, Check Point Check (IC51) defective? (IC51) transistor defective? transistor 11 connection PNP the Is 12 12 V regulator +5 the Is Step Step Isolating the Faulty Part on the Power Supply Board (continued) Board Supply Power on the Part Faulty the Isolating - S E E + D D C C Step.4 - Step.2 Step.2 G Step.4 G B B + + + - - + NPN Tr NPN Action + S E E D Step.3 D Step.1 C - C G G Step.1 Step.3 - - + B B - + Table 3-19. 3-19. Table Check the electrical continuity of the switching switching the of continuity electrical the Check pay to sure Be below. patterns four trying by FET FET switching main If the polarity. the to attention the under shown as be should findings the good, is figure. Off 4: Step 3: Off, Step On, 2: Step Off, 1: Step NPN the of continuity electrical the Check board PSB/SE C265 the on transistor connection to pay Be sure below. patterns four trying by contact NPN If the polarity. the to attention shown as be should findings the good, is transistor connection NPN the Note figure. the under transistor is shown in the circuitdiagram as below. described On 4: Step 3: Off, Step Off, 2: Step On, 1: Step Check Point Check FET (Q1) defective? (Q1) FET transistor defective? 9 switching main the Is 10 connection NPN the Is Step Step Isolating the Faulty Part on the Power Supply Board (continued) Board Power Supply on the Part Faulty the Isolating EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 91 - -

Revision C Revision Step 2 Step Step 4 Step + + Action + Step 1 Step + Step 3 Step - - Soldered Soldered area Place the probes of the tester on the both terminals of terminals both the on tester the of probes the Place Then board. Main C265 the on (F6) fuse chip the the beside located is F6 continuity. electrical for check connector fan cooling of the front in is which Q7 (CN13). fan). cooling the for (CN13 connector the beside is Q7 and emittor, base, the for terminals three the Since to below pattern every try marked, not are collector the with test to sure Be continuity. electrical for check under shown are findings correct The polarity. correct figure. the Off 4: Step On, 3: Step 2: Off, Step On, 1: Step correct for the check then and unit Fan the Replace operation. the replace yet, isolated been not has cause the If board. Main C265

Table 3-22. Cooling Fan does not Rotate not does Fan Cooling 3-22. Table Check Point Check open? defective? (Q7) motor fan for the open? defective? board 1 (F6) fuse Is the 2 transistor Is the 3 Is the internal coil 4 Main C265 Is the Step Step Table to refer to to refer Table 3-22, Table 3-23 Table 3-26 Table 3-25, Table 3-33 Table - 3-29 Table 3-34 Table Table 3-21. Phenomena Exhibited 3-21. Table Phenomenon Exhibited Phenomenon Note the cooling fan does not constantly rotate. rotate. constantly not does fan cooling the Note 2.3.7. Section 2 / Chapter to Refer adjusted. be not can printhead the so replaced, rotate. not does motor CR rotate. not does motor pump/ASF problem. print the solve not does Cleaning 1 rotate. not does fan cooling The 3 rotate. not does motor PF 5 operate. not does solenoid ASF 7 is printhead the after Error occurs End Ink 3-24 Table 3-28 Table 3-27, Table 2 4 6 No.

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 92 3.1.3 Isolating the Faulty Part according Isolating 3.1.3 to the Phenomenon 3.1.1 Section in problem the solve not could you if section this to Refer cause the to isolate information or need more 3.1.2 or Section the cover mostly The contents phenomenon. exhibited the to according remedies. C265 Main board to the their and relating problems M/C Revision C Revision RED WHT M/C µ R EASF PE CRH BLK 20V 20 Action M/C Phase A, Phase B, Phase /A, Phase /B Phase /A, Phase B, Phase A, Phase 1 mark Pin the from

The GND can be output by placing the probe of of probe the placing by be output can GND The the in hole tapped to the scope oscillo the bottom plate on the board with a screw. Note this since line ground no has connector the system. bipolar the with motor the drives printer of probe the placing by be output can GND The the in hole tapped to the scope oscillo the bottom plate on the board with a screw. The connector used to control the PF motor is indicated indicated is PF motor the control to used connector The the for check scope, oscillo the Using below. figure the in indicated the from output phase each for waveform Load/Eject the press waveform, the To check connector. to sure Be feeding. paper ASF the attempt to button connected. motor PF for the cable the leave NOTE: drive to trying While the motor, PF the from output waveform be should phase each as shown in the the If figure. from output waveform as is phase each shown in the figure, PF motor. the replace the replace not, If board. Main or C265 IC) driver motor (PF IC11 NOTE:

Check Point Check for inspecting inspecting for waveforms. waveform and and waveform remedies. 1 Getting ready 1 Getting 2 Check of the Step

M/C RED WHT M/C µ R EASF PE CRH BLK 20 20V Action M/C Phase A, Phase B, Phase /A, and Phase /A, Phase B, Phase A, 1 mark. Pin the from Phase /B The GND can be output by placing the probe of probe the placing by be output can GND The the in hole tapped the to scope oscillo the Note screw. a with board the on plate bottom this since line ground no has connector the system. bipolar the with motor the drives printer of probe the placing by be output can GND The the in hole tapped the to scope oscillo the screw. a with board the on plate bottom The connector used to control the CR motor is indicated indicated is motor CR the to control used connector The the for check scope, oscillo the Using below. figure the in connector. indicated at the phase each for waveform to button Load/Eject the press waveform, the check To cable the leave to sure Be carriage. the to move attempt connected. motor CR the for NOTE: While trying to drive the motor, CR the output waveform phase each from shown as be should the If figure. the in output waveform is phase each from as shown below, CR the replace not, If motor. Main C265 or IC) driver motor (CR IC12 the replace board. NOTE:

Table 3-23. CR Motor does not Operate not does CR Motor 3-23. Table Operate not does Motor PF 3-24. Table Check Point Check for inspecting waveforms. waveform and and waveform remedies 1 Getting ready ready 1 Getting 2 the of Check Step Step

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 93 Revision C Revision Action µ µ 20 20 20V 20V

The GND can be output by placing the the placing by output be can GND The tapped the to scope oscillo the of probe hole inthe bottomplate on the board witha screw.

While trying to drive the Pump/ASF motor, the the motor, Pump/ASF the drive to trying While as be should phase each from output waveform each from output waveforms If the below. shown Pump/ASF the replace below, shown as are phase motor (Pump/ASF IC13 the replace not, If motor. board. Main or C265 IC) driver NOTE:

Check Point Check waveform and and waveform remedies. 2 the of Check Step Step

M/C RED WHT M/C R EASF PE CRH BLK Action M/C The GND can be output by placing the the placing by output be can GND The tapped the to scope oscillo the of probe a with board on the plate in the bottom hole ground no has connector the Note screw. with motor the drives printer this since line system. bipolar the Phase A, Phase B, Phase /A, Phase /B Phase /A, Phase B, Phase A, Phase 1 mark Pin the from

The connector used to control the Pump/ASF motor motor Pump/ASF the control to used connector The oscillo the Using below. figure the in indicated is output phase each for waveform the check scope, the check To connector. indicated the from to attempt button Load/Eject the press waveform, cable the to leave Be sure feeding. ASF paper the connected. motor Pump/ASF for the NOTE:

Check Point Check Table 3-25. 3-25. does not Pump/ASF Motor OperateTable Table Pump/ASF Motor does not Operate 3-26. (continued) inspecting inspecting waveforms. 1 for ready Getting Step Step

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 94 Revision C Revision Q9 Action + µ µ 20V 20 20V 20 Place the probe of the oscillo scope on the emittor side of side the emittor on scope of the oscillo probe the Place check then board, Main C265 the on Q9 transistor the Load/Eject the press Then 0 VDC. is always voltage that level voltage in change instant an for check and button described as correctly it changes if VDC. 40 0 to from is Q9 The properly. working is Q9 the it means above, CN16. the beside located previous the in yet isolated been not has cause the If board. Main C265 the replace steps,

Check Point Check (Q9) defective? (Q9) board Main defective? 3 Is the transistor 4 C265 the Is Step Action Q8 µ µ 20V 20 20V 20 Place the probes of the tester on the both terminals of terminals both the on tester of the probes the Place for check then board, Main C265 the on fuse chip the CN12 between located is F4 The continuity. electrical Q9. the beside also and CN16 and side collector the on scope oscillo of the probe the Place of thetransistor on Q8the C265 Main board,then check the Load/ Then press applied. 40 VDC is constantly that for 0 VDC to drops voltage the if check and button Eject properly. working is Q8 the means it does, If it instant. an CN16. and CN12 between located is Q8 The

Table 3-27. ASF Solenoid does not Operate Table 3-27. ASF Solenoid Operate (continued) does ASF Solenoid 3-28. not Table Check Point Check open? (Q8) defective? (Q8) 1 (F4) fuse the Is 2 transistor the Is Step Step

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 95 Revision C Revision Action Valves Valve Cap Valve Foreign matter Foreign D am area aged rubber on the Dust R ubber part of the cap the of part R ubber Remove the printer mechanism and release the the release and mechanism printer the Remove carriage lock at the back of the printer from away unit carriage the to move mechanism at look close a have Then, position. home the thecap rubber and check for any problem below. in cap valve the to applied is impact strong If a that check Therefore, off. fall may it unit, cap the unit. cap the to attached securely is cap the absorbed. be not can ink part, this Without Check Point Check foreign matter, dirt, or dirt, matter, foreign damage. off? 4 for any cap the Check 5 Has the valve cap fallen Step rme Fram H eat Sink H eat Action

C heck that the connectors are are connectors the C that heck aslant. connected not to sure be FFCs, the reinstalling Before figure) the in (in red frame the remove two with case lower the to secured may continuity proper Otherwise, screws. look FFCs the despite guaranteed be not slant. without connected charge flag in the EEPROM. the in flag charge details.) You can repeat the initial ink charge operation in operation charge ink initial the repeat can You below: described way the 1. ink initial the reset program, exclusive the Using 2. 5 for Chapter to (Refer on. back printer the Turn are FFCs the if check and case upper the Remove the on CN9 and CN8 to the connected properly not are they though Even board. Main C265 installed aslant as shown below,disconnect the print a run then again, them connect and once FFC check. Unlike the previous products, the Stylus Color 900 900 Color Stylus the products, previous the Unlike cleaning). (dummy CL3 the with equipped not is time every cleaning the repeat can you Therefore, a running without button Cleaning the press you self-test nor anyprinting. NOTE: Check Point Check charge operation. charge FFC. printhead 7 or 8 times. Table Problem Cleaning the Print Table 3-29. does not Solve Problem (continued) the Print Solve does not Cleaning 3-30. Table 2 Trying the initial ink 3 Reinstalling the the 3 Reinstalling 1 cleaning the Repeat Step

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 96 nued) + E

Revision C Revision Q5 D2082 H eat Sink H eat Tr for the the for Tr nozzles color Q6 B1382 TH Action Q3 D2082 µ + 2 Q4 B1382 20V B Tr for the the for Tr nozzles black

Frequency of waveform and voltage level level voltage and waveform of Frequency through performed is printing if varies (p-p) the as long as Therefore, driver. the head the output, is waveform trapezoid the and good, considered is IC driver case. that in be replaced must printhead row A and B (black nozzle rows) nozzle B (black row A and nozzles) E (color and D, C, row

If you see the C265 Main board from the heat sink sink heat the from board Main C265 the see If you be can transistors power four following the side, found: • the for voltage common the Outputs Q4: and Q3 • the for voltage common the Outputs Q6: and Q5 properly, working is transistor pair each if check To terminal emittor the at waveform trapezoid the check the Check Q5). and (Q3 side charging of the waveform while running a print. NOTE: Check Point Check transistor defective? transistor 8 driver head the Is Step R ight tube tube R ight (w h ite ) Ink absorption Ink FFC 1 Action CW Separator FFC 2 Left tube Left CCW Applying/releasing Applying/releasing pressure mthe inus (s e m itra n s p a re n t) the cap (Remove the whole cap from the unit to to unit the from cap whole the (Remove cap the check the connection.) Referring to the figure below, check the following following the check below, figure the to Referring points: • of bottom the and tubes two between Connection • separator. the and tube each of Connection •valve the of bottom the at tube one of Connection and unit, the carriage from unit printhead the Remove bring the printhead surface side upwardto check that slant no though Even connected. properly is FFC two disconnect found, is disconnection nor connection again. them install and once FFC the Check Point Check disconnected from from disconnected the cap unit? disconnected from from disconnected printhead the board? 6 tube ink any Is 7 FFC the Is Step

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 97 Table 3-31. Cleaning does not Solve the Print Problem (continued) Problem the Print Solve does not Cleaning 3-31. Table Problem (conti the Print Solve does not Cleaning 3-32. Table Revision C Revision

Action Table 3-34. 3-34. Table Replace the printhead. the Replace seconds. several for down pressed button Load/eject the Keep printer (The sequence. replacement I/C the enters printer The to then first, position replacement cartridge ink black to the moves is button Load/Eject the if position replacement cartridge color the pressed.) Perform the initial ink charge operations. (Refer toChapter 4 for details.) “Adjustment” for details.) “Adjustment” for “Adjustment” 4 to Chapter (Refer Bi-D adjustment. the Perform details.) details.) for condition.) details.) Ink End Error Occurs after Printhead Replacement Printhead after Occurs End Error Ink 7 4 to Chapter (Refer adjustment. angle head the Perform 9 “Adjustment” 4 Chapter to (Refer adjustment. Uni-D the Perform 12 off. power printer the Turn 3 Cartridge Ink No in is printer (The on. back printer the Turn 4 5for “Adjustment” 4 Chapter to (Refer IC. head a 21-digit Input 6 8 Step Step Unlike the previous products, the procedure after head replacement is is replacement head after procedure the products, previous the Unlike 3-34 in Table the steps be to follow sure Therefore, specified. precisely table. the after explained is procedure the of background The exactly. E Q5 D2082 Heat Sink Heat Q6 T r fo nozzles r th ecolor B1382 TH Action Q3 D2082 µ 2 Q4 B1382 T r fo r nozzles th eblack 20V B If a trapezoid waveform is not output in the in output not is waveform trapezoid If a previous step, check all the power transistors (Q3 - transistor head the Like waveforms. base for Q6) output also transistors power 8, the Step in pre- the from input are but waveforms, trapezoid side. driver replace correctly, output not are waveforms If the is waveform If the board. Main C265 or IC15/16 the power corresponding the replace correctly, output transistor. Check Point Check pre-driver defective? pre-driver 9 9 driving head the Is Step

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 98 Table 3-33. Cleaning does not Solve the Print Problem (continued) Problem the Print Solve does not Cleaning 3-33. Table Revision C Revision Since the I/C has been repeatedly removed and reinstalled, the and reinstalled, removed the I/C repeatedly been has Since and properly level ink remaining the evaluate to fails printer condition. empty an in I/C the leaves the and reinstalled, removed the I/C repeatedly been has Since ink viscous and absorb and can bubbles stale not gets inside ink into itself. printer stops printing and starts a forcible cleaning. This operation operation This cleaning. a forcible starts and printing stops printer flow printhead the inside ink the and nozzles, clogged the cleans in the flag sets the printer the point, At this as a result. properly the in circuit detection temperature the abnormal for address error. temperature abnormal first the record to EEPROM and error temperature abnormal as the second it regards printer to judgement this makes printer The condition. End Error Ink enters problems: two following avoid   produced Stylus Color 900 are purchased from either of the the of either from purchased are 900 Color Stylus produced in differ ICs slightly EPSON Their vendors: or Sharp. two following has the printhead installed the if Therefore, back voltage. the feed ID in the printhead of the digit 1st and the selector nozzle at error the shows printer the 3-35, shown in Table combination even Therefore, automatically. a power and begins on cleaning Ink End the enters forcibly it to print, continues the printer though the set in already is the flag since time the second for condition error circuit. detection temperature abnormal EEPROM for the address 6. the is active, circuit detection temperature abnormal Once the 7. the data transferred. with printing resumes The printer 8. the again, temperature high abnormally an detects the printer If 9. used in the mass in total) (5 rows selectors the nozzle specifically, The printhead surface is left away from the home position a for home away from the left position is surface The printhead of time. period long repeatedly. installed and remove is cartridge ink same The down (vertically) up and moved is on it the printer with table The intensely. nozzles and driven by 32.4 KHz, the temperature inside the inside temperature the KHz, 32.4 by driven and nozzles the Therefore, printer. other any than easily more rises printhead must board and on the printhead printhead the inside temperatures printhead. the damaging avoid to monitored intensely be normally is printhead the inside Heat itself. printhead to the damage the printhead. inside as flows ink removed the input. data is print the even though properly ink    eventually hot enough to evaporate the ink inside the cavity (a tank (a tank cavity the the ink inside hot enough to evaporate eventually ink). stores which selector nozzle the in included is circuit detection temperature the circuit, this With board). printhead the onto attached (directly can be total) rows in row (five of nozzle each temperature 2.3.2.) 2 / Section to Chapter (Refer monitored. independently

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 99 Among the steps, if you do not perform Step 1 to Step 4 in the correct correct the in 4 Step to 1 Step perform not do you if steps, the Among may occur End error) (Ink Out error Cartridge Ink especially, order is problem of this The background printhead. the replace you whenever follows. as 1. 480 is composed of printer this with equipped printhead the Since 2. a fatal can cause of the printhead temperature in the internal Rise 3. eject to fails the printhead occurs, conditions any of the following If 4. up and heats is the gradually PZT properly, does not flow ink the If 5. abnormal 5-channel up, the heating from the printhead To prevent Revision C Revision Turning Turning proper proper → → I/C replacement I/C → 1st digit of the Head ID Head of the digit 1st 0 1 Turning on the printer printer on the Turning → Nozzle Selector Nozzle The board is in the Sharp- setting. specific EPSON exclusive printhead EPSON exclusive Table 3-35. Combination Causes Error Table 3-35. which Combination the For this reason, if you perform the operation in an incorrect an incorrect in the operation you if perform reason, For this Head replacement as; such procedure I/C replacement with a new one, the program allows a data transfer transfer a data allows program a new one, the with replacement I/C ID. printhead the overwrite can so you printing before once on the printer, the printer starts monitoring the temperatures before before the temperatures monitoring starts printer the on the printer, then one, new a with replaced is board the on ID printhead the the if you follow Onhand, other the consequently. error the shows Head replacement steps; proper

EPSON Stylus Color 900 EPSON Color Stylus Troubleshooting Overview 100 

DISASSEMBLY AND ASSEMBLY Revision C Revision Keep the battery away from any metal or other or other away from any metal battery Keep the do polarity opposite the of electrodes so that batteries other. each with contact in come not fire. it near or put battery Do not heat the so may (Doing battery. of the on any part Do not solder from the battery, of electrolyte leakage in result other affect may leakage The explosion.) or burning battery.) the to close devices may be (An explosive the battery. Do not charge or burning cause and battery, the inside generated explosion.) the (The inside gas the battery. Do not dismantle or Leakage, burning throat. your may hurt battery may result.) also explosion (This direction. the wrong in battery the Do not install explosion.) or burning cause may Disconnect the power cable before disassembling or disassembling before cable power the Disconnect printer. the assembling your eyes from goggles to protect Wear protective the eye with fresh flush in gets your eye, If ink ink. immediately. doctor a see and water wash off it your skin, with ink comes contact If into a contact occurs, irritation soap If with water. and physician. this on the main board of is installed battery A lithium instructions following the observe to sure Be printer. the battery: when serving           W ARNING

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Overview 102 4.1 Overview the main disassembling for procedures describes chapter This specified, otherwise Unless 900. Color EPSON Stylus of components the reversing by reassembled be can components or units disassembly are procedures no assembly Therefore, procedure. disassembly or assembly any disassembly for Precautions chapter. in this included “CHECK POINT”. the heading Any under are described procedure under described are units the disassembling after required adjustments ADJUSTMENT”. “REQUIRED heading the Printer the for Disassembling Precautions 4.1.1 “WARNING” and the heading under given precautions See the respectively, page, following the and column right the in “CAUTION” 900. Color EPSON Stylus assembling or disassembling when Revision C Revision Never remove the ink cartridge from the carriage carriage the from cartridge ink the remove Never so. do to specifies manual the unless cartridge the ink after the printer When transporting for printer the pack to sure be installed, been has cartridge. removing the ink without transport disassembling, tools for Use only recommended printer. the or adjusting assembling (See as specified. adhesives and lubricants Apply 6 details.) Chapter for when you disassemble specified Make adjustments details.) for 4 Chapter (See printer. the Danger of explosion if the battery is incorrectly incorrectly is battery the if explosion of Danger equivalent same or the with only Replace replaced. of Dispose by the manufacturer. recommended type to government laws and according used batteries regulations. remplacée est pile la si d’explosion Risque que par une pile mêmedu Ne remplacer incorrectment. recommandé par le équivalent type ou d’un type lois selon les déchargées les piles Eliminer fabricant. vigueur. en sécurité de règles les et      CAUTION CAUTION CAUTION EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Overview 103 Revision C Revision Front Frame R emFront oval Rem oval Platen Removal Roller PF Paper Eject Roller Rem oval Roller Eject Paper Printhead Rem oval Printhead Removal CR Motor & M otor Pump/ASF Rem oval Solenoid Removal Sensor CRHP PE Rem Sensor oval Rem oval Belt Encoder Removal Unit Carriage Removal Unit Pump PF Motor Removal Motor PF Figure 4-1. Disassembly Flowchart 4-1. Disassembly Figure Shield Plate on the C265 M on the ain Plate Shield RemBoard oval C265 PSB/PSE Removal PSB/PSE C265 A S F D isassem bly ASF Removal ASF START C 265 M ain Board RemC Board M 265 oval ain R elay Board / Cooling Fan R em Cooling oval / Board R elay ASF Sensor Removal Sensor ASF U pper Case/Control Panel Rem Panel oval Case/Control U pper Mechanism R em oval Printer

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 104 4.2 Disassembly Procedures disassembly. for shows procedures below The flowchart Revision C Revision Table 4-1. 4-1. Table Corresponding adjustment required adjustment Corresponding sequence. replacement I/C the in I/C new a Install Input ID Voltage Actuator Head Reset Flag Charge Ink Adjustment. Angular Head Adjustment Bi-Directional Unit. CR and Printhead the Remove 6.) Chapter to (Refer pad. oil the Remove shaft. guide carriage the lubricate and Clean Unit. CR the and printhead the Reinstall adjustment. Parallelism the Perform I/C new a install to sequence replacement I/C the Enter and make sureit is completed. Reset Flag Charge Ink Adjustment Angular Head Adjustment Bi-Directional value counter protection the Clear Adjustment Bi-Directional 1 1 2 3 4 5 6 7 8 9 1 1 2 Bi-Directional Adjustment 1 Input ID Voltage Actuator Head 2 Bi-Directional Adjustment 2 3 4 5 Step Removed/Replaced Parts and Corresponding Adjustments Corresponding and Parts Removed/Replaced Actions taken Actions Printhead board Main C265 1 Input ID Voltage Actuator Head CR shaft Waste Ink Pad CR Motor ROM Program replacement If you have replaced specified parts, you must make make must you parts, specified replaced you have If tables See the following adjustments. necessary and removed/replaced which shows the parts and perform required, adjustments corresponding 5 (See Chapter order. correct in the adjustments procedures.) detailed for “Adjsutment” CAUTION EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 105 Revision C Revision Figure 4-3. Control Panel Removal Panel Control 4-3. Figure Control Panel Control FFC for the FFC for Panel Control mechanism, then pull the front case forward and remove it from from the and remove it forward case the front pull then mechanism, printer. FFC the disconnect Then panel. control the release to mechanism the printer. from panel and remove the control panel the control from rear used at the must be among four screw CBS Tight only the note upper of the case. right the along ASF. it by tilting 4. printer the to the left) (on case front the securing Remove one screw 5. it. remove and left the to tray output the Pull 6. to the printer panel the control securing Remove two screws 7. case. When assembling, upper the screws securing Remove four 8. case the whole remove then case, upper the edge of front up the Lift Control Control Panel Output Tray Output Screws securing securing Screws Panel Control the Front Case Front Screws securing securing Screws the Upper Case Figure 4-2. Upper Case Removal Upper 4-2. Figure Sheet Guide Sheet Screws securing the the securing Screws Case Front

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 106 4.2.1 Upper Case and4.2.1 Control Panel Removal 1. guide. sheet Remove the 2. case. Open the upper 3. tray. output the Open Revision C Revision PF MPF otor board m CN11 ain on the from board m CN12 ain on the from board m CN10 ain on the from board m CN16 ain on the from Solenoid from CN15 on the m ain board m CN15 ain on the from

BLK

Pum p/ASF M otor Pum p/ASF M/C M/C from the control panel control the from WHT CR Motor

RED Location 4-5. Connector Figure ASF Sensor M/C CRH PE ASF PE Sensor CRHP Sensor CRHP When assembling, be sure to connect the connectors connectors the connect to be sure When assembling, 4-5. as shown in Figure properly 19-pin FFC (used to supply sensors with power and to send to and power with sensors supply to (used FFC 19-pin signals) detection condition solenoid the driving for connector 2-pin ASF for Connector PF motor for Connector Pump/ASF motor for Connector PE sensor for Connector CR motor for Connector sensor Position) Home CRHP (Carriage for Connector         POINT CHECK Relay Board Cable Holder Cable Screw securing the securing Screw Mechanism Printer Printhead FFCs Printhead Figure 4-4. Printer Mechanism Removal Mechanism Printer 4-4. Figure Screws securing the Screws securing Mechanism Printer out of the cable holder. holder. of the cable out connectors to be disconnected are colored red in Figure 4-5.) red in Figure are colored to be disconnected connectors Screws securing the securing Screws Pads Drain Ink Waste EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 107 4.2.2 Mechanism Printer 4.2.2 Removal 1. 4.2.1.) Section case. (See upper Remove the 2. harnesses all take then board, relay the on clamp cable the Unlock 3. (The board. from the relay connectors following the Disconcert Revision C Revision Screws securing the Rear Case Rear the securing Screws Screws securing the Type B I/F the Type B Cover I/F Screws securing Figure 4-6. C265 Main Board Removal Board Main C265 4-6. Figure After removing/replacing the C265 Main Board, Board, the C265 Main removing/replacing After (See Table 4-1) adjustments. perform any necessary Main board. Main printer, and remove the case. rear and remove the printer, and board the C265 Main unit. board remove CAUTION 4.2.3 C265 Main Board4.2.3 Unit Removal 1.4.2.2.) Section (See mechanism. printer the Remove 2. C265 on the stay to the case rear the securing screws Remove four 3. to the cover the Type B interface securing Remove two screws 4. CN5 and CN6 C265 Main the from two connectors Disconnect After replacing the Waste Ink Pads, any Ink Pads, Waste perform the replacing After Table 4-1) (See adjustments. necessary secured frame the remove FFCs, the When installing the FFCs. by two screws before connecting the to connected be not FFCs will the Otherwise, may be and the printheads properly, connectors applied. is voltage when damaged them screws, do not When fasten the four mounting be will the areas in lower or the tapped excessively, damaged.    lower case and remove it. mechanism. printer and remove the case, lower CAUTION EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 108 4. pad to the cover ink waste drain the securing Remove two screws 5. FFCs C265 main board. the from control two printhead Disconnect 6. the to mechanism the printer screws securing large Remove four Revision C Revision Relay Board CN13 Cooling Fan Unit Fan Cooling Screws securing the Relay Board Figure 4-7. Board and Cooling Figure Relay 4-7. Fan Removal Screws securing the Unit Fan Cooling connecting them.) connecting board. relay the remove then board, Main C265 the fan from the cooling separate on the plate C265 main then board, board. Main C265 the unit. fan cooling the remove and board,

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 109 4.2.4 Board4.2.4 Relay and Cooling Fan Removal 1. 4.2.3.) Section (See board. Main C265 the Remove 2. 4-5 when Figure board. (See from the relay connectors Remove all 3. on plate shield to board the relay the securing Remove two screws 4. shield to the unit fan the cooling securing screws Remove three 5. Main C265 the from 2-pin) CN13 (white, connector the Disconnect Revision C Revision Figure 4-9. Shield Plate Removal (2) Removal Plate Shield 4-9. Figure Screws securing the C265 Main Board board. (top). plate shield the and remove frame, plate reinforcing the are fixing among the four (Two frame. screws guide.) interface Type-B the for board. Main C265 the remove and screws small four remove side, 4. Main C265 the CN15 on connector the from FFC the Disconnect 5. bottom to the (top) plate the shield securing Remove two screws 6.guide. interface Type-B the Remove 7. bottom the onto board C265 Main the securing screws Remove four 8. connector I/F Centronics the from board Main C265 the Viewing Right Upper Main Shield Plate Shield Main Upper Right Screws securing the Right Upper MainShield Plate MainShield Upper Right Left Upper Main Shield Plate Shield Main Upper Left Screws securing the Figure 4-8. Shield Plate Removal (1) Removal Plate Shield 4-8. Figure Left Upper Main Shield Plate Shield Main Upper Left Shield Plate (top) Plate Shield Screws securing the the Screws securing Figure 4-5 when connecting them.) connecting when 4-5 Figure upper the left two screws securing and another bottom frame the the both plates then remove frame, to the bottom plate main shield together. CN15 Type B I/F Guide I/F B Type

EPSON Stylus Color 900 EPSON Color Stylus (top) Plate Shield and AssemblyDisassembly Disassembly Procedures 110 4.2.5 Shield Plate on the Plate BoardC265 Main Shield 4.2.5 Removal 1. 4.2.3.) Section (See board. Main C265 the Remove 2. (See board. relay the from connectors four remaining the Remove 3. to plate shield upper main right the securing Remove two screws Revision C Revision C265 PSB/PSE Board C265 PSB/PSE Screws securing the securing Screws Figure 4-12. RemovalC265 PSB/PSE Board 4-12. Figure Figure 4-11. Plate 4-11. Removing the Shield Figure Screws securing the Shield Plate Shield the securing Screws PSE board, and remove the shield plate. the remove and PSE board, securing the C265 PSB/ securing bottom the to PSE board the remove and frame, C265 PSB/PSE board. . 4. on the C265 PSB/ plate the shield securing Remove two screws 5. screws Remove four Figure 4-10. 4-10. Removing the Connectors Figure Screws securing C265 the securing PSB/PSE Board Screws CN1 CN3 - PSB/PSE board. C265 the remove then case, lower the to board PSB/PSE C265 PSB/PSE board unit.

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 111 4.2.6 Board Removal C265 PSB/PSE 4.2.6 1.4.2.2.) Section (See mechanism. printer the Remove 2. and CN2, CN1, C265 CN3 from the connectors three Disconnect 3. the securing grounding) for one (including screws Remove three Revision C Revision Sensor Cover Cover Sensor Ink Cartridge Cartridge Ink FFC Holder Joints (blue) Joints Compression Spring Compression Figure 4-14. Printhead Removal (1) Removal 4-14. Printhead Figure Screws securing the securing Screws Head Fixing Lever Head Fixing unit, and remove the cartridge clamps. and the cartridge unit, remove cover. the remove unit, carriage the in sensors upward. it pulling Joints (black) Joints 5. the carriage clamps from in the cartridge (black) two joints Release 6. unit. of the side carriage on the left spring compression Remove the 7. 2 cartridge ink cover protecting the securing three hooks Releasing 8. by unit carriage the of edge right on the holder FFC the Remove Cartridge Clamp Cartridge Pump/ASF Motor PE Sensor Connector Sensor PE CR Lock Figure 4-13. Releasing CR Lock the Releasing 4-13. Figure CR Motor When removing the printhead, make sure the carriage make the carriage When sure the printhead, removing you If mechanism. printer the of end left the at is unit force excess position, other any from remove it to try may be damaged unit be added and printhead will the as a result. move the carriage unit to the left end of the printer mechanism. printer the of end left the to unit carriage the move cartridge clamps from the carriage unit. the carriage clamps from cartridge CAUTION EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 112 4.2.7 Mechanism Printer Disassembly 4.2.7 Removal Printhead 4.2.7.1 1.4.2.2.) Section (See mechanism. printer the Remove 2. it. remove unit, carriage in the is installed any ink cartridge If 3. and mechanism, printer the of back the at lock carriage the Release 4. the to release clamps the cartridge in (blue) two joints Release Blue

Revision C Revision Figure 4-16. Printhead Removal (2) Removal 4-16. Printhead Figure After removing/replacing the printhead, perform any perform the printhead, removing/replacing After 4-1) Table (See adjustments. necessary When installing the printhead FFCs, make sure the FFCs, make sure the printhead When installing as correctly installed are FFC the on plates reinforcing below: described printhead. side of one: on the left the - White printhead. the of side right on the one: Blue - White Green (green, 4-pin) for the ink cartridge sensor. cartridge ink the for 4-pin) (green, POINT CHECK CAUTION 12. connector the and 2 FFCs disconnect unit, printhead the up Lifting Actuators Figure 4-15. Removal of the I/C Detection Actuator Detection I/C of the Removal Figure 4-15. the printhead by the bottom of the carriage unit, then pull out the out pull then unit, carriage the of bottom the by printhead the right. to the plate suspension the color one is for and the white cartridge for the is black one cartridge.) unit. carriage

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 113 11. the sensor from the ink cartridge for connector green the Disconnect 9. is fixing which head lever the fixing securing Remove two screws 10. the black (Note sensors. cartridge ink the for Remove two actuators Revision C Revision After removing/replacing the CR Motor, any the CR perform Motor, removing/replacing After 4-1) Table (See adjustments. necessary CAUTION Screw securing CRthe Screw securing Motor Figure 4-17. CR Motor Removal CR Motor 4-17. Figure move the carriage unit away from the home position. (See Figure Figure (See home position. the from away unit carriage the move 4-13.) motor. CR the remove and mechanism,

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 114 4.2.7.2 CR Motor Removal Motor CR 4.2.7.2 1.4.2.2.) Section (See mechanism. printer the Remove 2. then mechanism, back of the at printer the lock the carriage Release 3. CR the printer motor the to securing Remove two screws Revision C Revision PF R oller Drive G ear Drive PF R oller D o not push the edge gear. the push D the not o of surface nor C enter area C enter Figure 4-19. PF Roller Driver Gear Installation Driver 4-19. PF Roller Figure A high-precision gear is used for the PF roller drive used for the drive PF roller is gear A high-precision has drive been gear PF if the roller Therefore, gear. this it Neglecting must not be used again. removed, malfunction. printer a may cause to be sure gear, drive roller new PF a When installing a not forcing area, by its center intensively push it push by its edge. PF motor pinion gear as well as the PF roller drive drive as as the PF PF pinion well gear roller motor be careful Therefore, gear. a is high-precision roller it frame by the not to damage the gear by hitting edges. the touch not to be sure the PF motor, installing When driver. with a screw gear surface pinion     mechanism, and remove the PF motor. the remove and mechanism, CAUTION CAUTION 3. printer PF motor the to the screws securing Remove three PF Roller Drive Gear Drive Roller PF Figure 4-18. Removal PF Motor 4-18. Figure Screws securing the PF Motor PF Motor PF Motor Pinion

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 115 4.2.7.3 PFMotor Removal 1.4.2.2.) Section (See mechanism. printer the Remove 2. shaft. PF roller the gear from drive PF roller Remove the Revision C Revision

Screws securing the ASF Unit ASF the securing Screws Figure 4-21. ASF Removal ASF 4-21. Figure Screw with a flat head: on the right toward the front toward the head: on the right with Screw a flat of the printer. side front the toward left on the washer: a with Screw of the printer. side When install the ASF be sure to use the correct type of type correct the use to be sure ASF the install When as the screws, below: shown   drive gear and the ASF drive shaft to remove the ASF drive gear. drive ASF the remove to shaft ASF drive and the gear drive CAUTION 4.2.7.5 ASF Unit Removal 1. 4.2.7.4.) Section (See frame. DE subassembly the Remove 2. the ASF for the joint release from side, the inner tweezers Inserting 3. the ASF unit. securing Remove two screws 4. the remove ASF unit. up the left, to lever paper hold the Holding Screw securing securing Screw Solenoid the Screws securing the Pump/ASF Motor Figure 4-20. Removal Pump/ASF Motor 4-20. and Solenoid Figure solenoid to the DE subassembly frame, and remove the solenoid. and remove frame, to the DE subassembly solenoid the securing screws three remove motor, pump/ASF the remove To then mechanism, printer the back of the frame to DE subassembly with pump/ASF motor. the DE along the remove frame subassembly and the pump/ASF motor. frame, remove subassembly DE Subassembly Frame DE Subassembly Screws securing the Frame DE Subassembly the Screws securing Mechanism Printer the to

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 116 4.2.7.4 Pump/ASF Motor and Solenoid Removal and Solenoid Motor Pump/ASF 4.2.7.4 1.4.2.2.) Section (See mechanism. printer the Remove 2. the securing screw one remove the solenoid, When removing 3. pump/ASF motor DEthe to securing the Remove two screws Revision C Revision ASF Frame ASF LD R oller Shaft LD R oller Figure 4-25. 4-25. Figure Fixing Tab Fixing H opper AssemH opper bly D etection Wheel D etection Figure 4-24. Detection Wheel Removal Wheel Detection 4-24. Figure When installing the shaft release hopper lever, pay lever, hopper release shaft the When installing the However, it. installing for direction the to attention Therefore, is wrong. in if the direction does not fit lever with direction correct the find 4-23, Figure to referring without hopper lever which you can push the release force. Separating the Hopper Assembly from the ASF Frame the from Assembly Hopper the Separating tweezers, remove the detection wheel by releasing the tab attaching attaching tab the releasing by wheel detection the remove tweezers, shaft. end of the LD roller to the left wheel the detection frame. ASF the and assembly hopper the separate Then left. top POINT CHECK 4. about 2 cm. Then, using to the left shaft LD roller whole the Shift 5. by the ASF frame to the hopper assembly the the fixing peg Release e S h a ft's S id e F a c LD R oller Shaft LD R oller Figure 4-22. Left Removal Left Bushing 4-22. Figure Bushing Fixing the Shaft Shaft the Fixing Bushing Left on the Figure 4-23. Release Hopper Lever Removal Lever Hopper Release 4-23. Figure LD R oller Shaft LD R oller R elease H opper Lever (Right) Lever H opper R elease (LD) roller shaft. roller (LD)

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 117 4.2.7.5.1 ASF Disassembly 4.2.7.5.1 1. 4.2.7.5.) Remove the ASF. (See Section 2. loading end of the at the left located bushing shaft left Remove the 3. shaft. the LD from hopper lever roller release Remove the Revision C Revision Figure 4-27. Assembly Removal LD Roller 4-27. Figure Paper Loading Assem bly Loading Paper Never touch the rubber part of the LD roller assembly of the LD roller part the Never touch rubber hands. bare your with H ooks Fixing the the H Fixing ooks Assem bly LD R oller the paper loading assembly, and remove the LD roller assembly. and LD roller the remove assembly, loading the paper CAUTION 9. in frame the to assembly LD roller the securing hooks four Release r LD Roller Cove Roller LD Paper Loading Loading Paper A ssem bly Figure 4-26. LD Roller Cover Removal Cover LD Roller 4-26. Figure LD Roller Cover Roller LD left end to release the right end, then remove the LD roller shaft shaft LD roller remove the end, then the right end release to left assemblies. paper loading left and the right with along and left). (right rollers cover. LD roller and remove the assembly,

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 118 6.the to shaft LD roller the shift assembly, hopper the removing After 7. loading paper the out from it to pull to the left shaft the LD roller Shift 8. paper loading in the cover LD the roller one hook securing Release Revision C Revision ASF Frame R ibs ASF Frame ASF Figure 4-29. LD Roller Shaft Shaft Installation LD Roller 4-29. Figure ssem bly Paper Loading Loading Paper A When installing the LD roller shaft with the both paper loading loading paper both the with shaft roller LD the When installing paper the right ASF frame, the shift on it into assemblies it fix then the ASF frame, edge of right the assembly to loading loading paper the of back the in groove the aligning by on of the ASF inner ribs side the rail the frame. assembly with the it with by assembly also aligning paper loading left Fix the paper left The ASF frame. of the on the inner side ribs rail or to right movesfrom freely however, left assembly, loading versa. vice  Rod Spring Rod Torsion Spring Torsion r C om pression Spring 1.66 Spring C om pression Extension Spring Extension Figure 4-28. Parts in Paper Loading Assembly Loading Paper in Parts 4-28. Figure When installing the paper loading assembly, set the assembly, set loading the paper When installing to other the than longer is portion whose narrow edge the left. Before assembling the ASF, ensure the following four the the ASF, ensure following assembling Before loading the onto paper mounted are correctly parts assembly. spring - One Torsion spring - One extension spring compression One - - One rod spring Paper Loading Assem bly Loading Paper   POINT CHECK

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 119 y

Revision C Revision Assembl g er Loadin er p Left Frame in the the Frame in Left L e ft P a H o p p e r A s s e m b ly G u id e Figure 4-31. Assembling the ASF the 4-31. Assembling Figure Bushing Fixing the Shaft the Fixing Bushing Be sure to fix both right and left pegs on ASF and left the both right frame Be sure to fix in the hopper assembly. sockets the into securely LD the end of left the onto wheel detection the When installing of shaft the portion LD roller protruding the align shaft, roller wheel. of the detection the concave portion with assembly fits paper loading left of the frame left the that Ensure in guide edge left the of part left the in groove the into correctly assembly. hopper the lever by release hopper left the fixing bushing Make sure the as position correct the to attached is shaft the of part left the shown in the figure below.     Straight End of the the End of Straight (1.66) Spring C om pression C om pression Spring 1.66 Spring C om pression H ooks in the Frame the H in ooks Figure 4-30. Hopper Assembly Installation Assembly Hopper 4-30. Figure When installing the hopper assembly into the ASF assembly into the hopper When installing assemblies LD and the paper loading roller frame with end (one of straight set the on it, mounted assemblies facing straight) bent is spring each of ends the frame as to end the Then hook straight upward. the the setting After below. figure top the in shown in the the cutout through tweezers insert assembly, of end straight the release to frame ASF the of back figure bottom the in shown as spring compression the below. C utout in the back of the ASF Frame the of back the in C utout  POINT CHECK

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 120 Revision C Revision ASF HP ASF Sensor Figure 4-34. ASF Sensor Removal 4-34. Figure ASF Frame (Left Side view) Side ASF Frame (Left and remove the ASF sensor. ASF sensor. the and remove 4.sensor. ASF the from connector the Disconnect 5. ASF the sensor, securing the hooks of one release tweezers, Using LD R oller Shaft LD R oller LD R oller Shaft LD R oller Fixing Tab Fixing Figure 4-32. Left Removal Left Bushing 4-32. Figure D etection Wheel D etection Figure 4-33. Detection Wheel Removal Wheel Detection 4-33. Figure Bushing Fixing the Shaft Shaft the Fixing Bushing Left on the at the left end of the shaft. the of end left the at detection to remove. wheel detection

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 121 4.2.7.6 ASF Sensor Removal ASF Sensor 4.2.7.6 1.4.2.7.5.) Section (See unit. ASF the Remove 2. fixed (left) bushing the remove front, the from unit ASF the Viewing 3. the and push wheel detection the securing hook the Release Revision C Revision o rme Fram Top Figure 4-36. PE Sensor Removal PE Sensor 4-36. Figure Location holes Location H ooks Attaching the the H Attaching ooks EndPaper Sensor mechanism, PEand remove mechanism, the sensor. 4.2.7.8 PE Sensor Removal Sensor PE 4.2.7.8 1.4.2.2.) Section (See mechanism. printer the Remove 2. back of the the PE printer at the sensor hook the securing Release Push the hooks. Push the Figure 4-35. 4-35. CRHP Sensor Removal Figure CRHP Sensor the CRHPthe sensor.

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 122 4.2.7.7 CRHP Sensor Removal 1.4.2.2.) Section (See mechanism. printer the Remove 2. remove sensor, CRHP the securing hooks four the of two Pushing Revision C Revision Carriage Unit Carriage Encoder Linear Scale Linear Belt) (Encoder Figure 4-38. Positioning Encoder Belt the 4-38. Positioning Figure When installing the encoder belt, be sure to place it to place be sure the encoder belt, When installing the to attached sensor photo the for flags the between a bring so will do to Failure unit. carriage the of back on. power at error fatal CAUTION (Linear Scale) (Linear Encoder Belt Encoder Fixing Lever Fixing Figure 4-37. Removal Encoder 4-37. Belt Figure the left end to the right, then remove the encoder belt when the belt encoder remove the then right, end to the left the enough. is released belt encoder

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 123 4.2.7.9 Encoder Belt Sensor Removal 1.4.2.2.) Section (See mechanism. printer the Remove 2. by encoder belt the holding lever push the fixing your hand, Using E- Screw

Revision C Revision Hook Spring Figure 4-41. Parallelism Parallelism 4-41. Figure PG Adjust Lever PG Adjust Parallelism Adjustment Adjustment Parallelism (right) Bushing Adjustment Bushing Removal Bushing Adjustment Figure 4-40. PG Adjust Lever Removal Lever PG Adjust 4-40. Figure the printer mechanism, then push the paper thickness adjusting adjusting thickness then push the paper mechanism, the printer lever inward to remove it. and shaft the guide carriage bushing adjustment parallelism and and washer the then (right) the to release washer spring the bushing adjustment parallelism side concave the (Note (right). to washer faces spring of the side.) mechanism printer the bushing adjustment parallelism (right). 6. to lever adjusting the paper thickness hook the securing Release 7. the fixing E-ring the Remove 8. the fixing screw the Remove Torsion Spring Torsion Figure 4-39. Tension Removal 4-39. Belt Spring Figure Pulley Holder the cutout in the left frame, then push out the belt pulley holder to holder pulley belt push then out the frame, in the left cutout the front. the tension.

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 124 4.2.7.10 Carriage Unit Removal 1.4.2.2.) Section (See mechanism. printer the Remove 2. 4.2.7.9.) Section (See belt. encoder Remove the 3. holder. belt pulley from the spring tension Remove the 4. in holder the to fit (HP side) the to right holder pulley the Push belt 5. with lever adjusting thickness paper the fixing spring the Remove Revision C Revision Pump Unit Screws securing the Pump Unit the securing Screws Screws securing Pumpthe securing Unit Screws Figure 4-42. Pump Unit Pump Unit Removal 4-42. Figure unit along with the frame. the with along unit 4.2.7.11 Pump Unit Removal Pump 4.2.7.11 1.4.2.2.) Section (See mechanism. printer the Remove 2. the and remove pump unit the pump screws securing Remove three After removing/replacing the Carriage Unit (Carraige (Carraige Unit Carriage the removing/replacing After adjustments. perform necessary any Guide Shaft), 4-1) Table (See pay shaft, guide When the carriage removing the come pad off will the oil as it to atttention carriage. be sure to shaft, guide the carriage When lubricating to Chapter 6. by referring order the correct follow    bushing with the cutout in the left frame, then pull the parallelism parallelism the pull then frame, left the in cutout the with bushing forward. adjustment unit and carriage shaft guide remove the carriage end, then left the together. CAUTION EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 125 9. the align to left to the bushing adjustment the parallelism Turn 10. at the joint to release right to the shaft guide carriage the whole Shift Bushing

Revision C Revision Paper Eject Roller Paper Eject Figure 4-44. Paper Eject Roller Removal Roller Eject Paper 4-44. Figure upwards, and remove the paper eject roller. eject paper the remove and upwards, 4.2.7.13 Paper Eject Roller Removal 1. 4.2.7.12.) (See Section frame. eject paper Remove the 2. both ends by the the paper roller fixing bushings the Turning Right Frame Right FFC Holders Figure 4-43. Paper Eject Frame Removal Frame Eject Paper 4-43. Figure Screws securing the Paper Eject Frame Eject Paper the securing Screws Paper Eject Frame Paper Eject frame and the other on the right frame), and remove the and remove the FFC frame), on the right and the other frame holders. paper eject frame. frame. eject paper

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 126 4.2.7.12 Paper Eject FrameRemoval 1.4.2.2.) Section (See mechanism. printer the Remove 2.4.2.7.11.) Section (See unit. pump the Remove 3. 4.2.7.10.) (See Section unit. carriage Remove the 4. 2 on paper (one eject holders FFC the Remove hooks securing 5. remove the and frame, paper eject the securing screws Remove two Revision C Revision Platen Figure 4-45. Removal Platen 4-45. Figure

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 127 4.2.7.14 Platen Removal Platen 4.2.7.14 1. 4.2.7.13.) Section (See roller. eject paper Remove the 2. plate. the and remove edge of the up platen, front the Lift Revision C Revision Tension Spring Tension Figure 4-48. Tension Spring Removal Spring Tension 4-48. Figure When installing the paper guide located on located the the paper left guide When installing of side rear the from it insert to be sure side), edge (HP has in it because cutout mechanism: a the printer and if the PE sensor falls, the for actuator which the be will actuator is removed to the paper rear, guide damaged. mechanism (paper ejection side). side). ejection (paper mechanism mechanism. printer the of back frame. CAUTION 4. printer of the side front out to the (upper) guides the paper all Pull 5.the from belt encoder the stretching spring tension the Remove 6.top the remove and frame top the securing screws two Remove Torsion Spring Spring Torsion (six springs in total) Paper Guides Paper Guides (Upper) Figure 4-46. Paper Lever Removal Hold Paper 4-46. Figure Figure 4-47. Releasing the Paper Guide (Upper) Guide Paper the Releasing 4-47. Figure Screw Securing the Paper Lever the Paper Support Screw Securing mechanism, and remove the paper hold lever along with the stay. the with along lever hold paper the remove and mechanism, securing the paper guides (upper) to release the paper guides paper guides the to release (upper) guides paper the securing (upper).

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 128 4.2.7.15 PF Roller Removal Roller PF 4.2.7.15 1. 4.2.7.14.) Section (See platen. the Remove 2. the printer to lever paper support the securing screw Remove the 3. springs torsion the release mechanism, printer back of the From the Revision C Revision PF Roller 1 Bushing (left) Bushing Figure 4-51. PF Roller Removal PF Roller 4-51. Figure 2 Never touch the PF roller with your with your bare hands. the Never touch PF roller the left one (on the 80th column side) upward to release the the PF release upward to side) column 80th one (on the the left PF the remove and right the to shaft whole the shift then roller, together.) is remove (lower) guide paper (The roller. CAUTION 8. turn both ends, the PF by the roller securing among two bushings Top Frame Figure 4-49. Top Frame Removal (1) Removal Frame Top 4-49. Figure (2) Removal Frame Top 4-50. Figure Screw securing the Top Frame (at the back) the (at Top Frame the securing Screw Screws securing the Top Frame Screws securing the rest by the rear right of the printer mechanism), and remove the and remove mechanism), the printer of right rear by the rest the frame. top

EPSON Stylus Color 900 EPSON Color Stylus and AssemblyDisassembly Disassembly Procedures 129 7. and by the front frame (two the top securing screws Remove three 

ADJUSTMENT Revision C Revision When adjusting the printer, be sure to refer to Table Table to refer to sure be printer, the adjusting When items adjustment necessary the all for check to 5-1 do to Failure order. correct the in them perform and adversely. quality to print affect so may directly done be can adjustment angle head the printer, this In the since However, upper case. the removing without two screws, with is installed plated head fixing the to perform manual in this observe the instruction properly. adjustment program only The C used in the service language be to the run DOS/V. PCs which Therefore, applies If since program, the service DOS/V to use to run sure which the one or such as 98-series PCs of types other communication bidirectional does not support does not run properly program are used, system the can not be made.and adjustments be sure forcibly, Charge Ink Initial performing When ready. to have a ink cartridge new the using counters pad ink waste the clearing Before make program, sure the pads have service waste ink may operation of this Lack in advance. been replaced case. lower the from cause the ink to leak      CAUTION

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Overview 131 5.1 Overview 900. Color Stylus for procedures adjustments all contains chapter This for Each Adjustment Conditions 5.1.1 repairing after required which is adjustment each includes section This 900. Some Color of the used in the Stylus parts specific or replacing on depending the to perform, order specified have the adjustments shown under points the observe Therefore, of the adjustment. contents the perform and well column right the in “CAUTION” heading the Table - 5-1 Table to referring order, correct the in properly adjustments 5-3. Revision C Revision

Make sure the printhead has been been has printhead the sure Make new to the oil supplying before removed pad. oil would occur in Step 7. (For details, refer to to refer details, (For 7. Step in occur would Circuit.) Driver Fan 2 / Cooling Chapter Corresponding adjustment required adjustment Corresponding perform “Maintenance”, 6 Chapter to Referring the followings: 1. surface. shaft carriage the Clean 2. lubrication. preliminary the Perform 3. pad. installed newly the Oil 4. unit. carriage the to shaft carriage the Install adjustment. Parallelism Perform Perform“Ink ChargeFlag Reset”using the In off. printer the turn then and program service the and on, back printer the turn seconds, 10 automatically. begins Charge” Ink “Initial service program. the using Adjustment” “Bi-Directional Perform service program. the oil pad from the carriage. the from pad oil the NOTE: completed. is it sure make and I/C new 1. mismatching. counter avoid To 2. which error hot head avoid preliminarily To 1 remove “Maintenance”, 6 Chapter to Referring 2 3 carriage. the to printhead the Reinstall 4 6 7 the using Adjustment” Angular “Head Perform 8 5 a install to sequence replacement I/C the Enter Step Table 5-2. 5-2. (continued) Table Actions taken Actions replacement or replacement cleaning Actions Taken and Corresponding Adjustments in Order Adjustments Taken and Corresponding Actions 3 CR shaft No. would occur in Step 3. (For details, refer to to refer details, 3. (For in Step occur would descriptions.) Sensor 2 / Chapter Table 5-1. 5-1. Table required adjustment Corresponding is it suer make and performable) (user completed. 1. mis-matching counter avoid To 2. which error hot head avoid preliminarily To the using Reset” Flag Charge “Ink Perform In off. printer the turn then and program service the and on, back printer the turn seconds, 10 automatically. begins Charge” Ink “Initial Input”using the service program. the using Adjustment” Angular “Head Perform service program. service program. program. service the in name model the Input value. default and CG the To set ID Voltage Actuator “Head in ID a 22-digit Input Input”using the service program. service program. 1 1 sequence replacement I/C the in I/C a new Install 2 Select the destination in the service program. 3 ID Voltage Actuator “Head in ID a 22-digit Input 5 the using Adjustment” “Bi-Directional Perform 4 the using Adjustment” “Bi-Directional Perform 2 4 3 Step Actions taken Actions board Main C265 replacement replacement replacement Actions Taken and Corresponding Adjustments in Order in Adjustments Corresponding and Taken Actions 1 Printhead 1 Printhead 2

EPSON Stylus Color 900 Color EPSON Stylus

No. Adjustment Overview 132 Revision C Revision Corresponding adjustment required adjustment Corresponding program. Charge “Ink perform effective, not is 1 step If the then and program service the using Reset” Flag printer the turn seconds, 10 In off. printer the turn begins Charge” Ink “Initial and on, back automatically. waste for the values counter current the Return the of “Indication selecting by zero to pads ink the “Clear then pad” ink of waste value counter service the using value” counter protection program. service program. ID Voltage Actuator “Head in ID a 21-digit Input Input”using the service program. service program. 2 1 1 Replace the waste ink pad. 1the using Adjustment” “Bi-Directional Perform 2the using Adjustment” “Bi-Directional Perform 1 service the using Cleaning” “Head Perform 2 Step Table 5-3. Table 5-3. (continued) *1 Actions taken Actions recovery replacement replacement replacement Actions Taken and Corresponding Adjustments in Order in Adjustments Corresponding and Taken Actions

revised one (TEE01D or newer). of the older in place TEE01D or newer) ROM a (version Installing output change the TEE01A, 01B, 01C) will (version version to are you required reason, For this firing. for ink control waveform you whenever Bi-D adjustment head ID and the perform re-input with TEE01A, the 01B, or the ROM01C) (version have replaced TEE01D or newer) one (revision revised 4 Clogged nozzles nozzles 4 Clogged Pad 5 Waste 6 CR motor 7 ROM Program

EPSON Stylus Color 900 Color EPSON Stylus

No. Adjustment Overview 133 *1: When the ROM (revisionTEE01A, 01B, or 01C) is repalced with the NOTE: Revision C Revision ESP EHK EHK(PHUL) ETT EURO EFS EIS EIB EU L(120V) EU L(240V) NLSP)EU / L(230V EAL Select the destination. the Select E s c P : re v io u s U p /D o w n a rro w s : S e le c t E n te r: O K EAI EAI(CANADA) 120V) EAI(LATIN 220V) EAI(LATIN EDG EDG(NLSP) <*><*><*> Service Program boot process <*><*><*> <*><*><*> process boot Program Service <*><*><*> Figure 5-2. Destination Selection Screen Selection Destination 5-2. Figure

If we OEM this product in future, there will be a possibility that that be a possibility will there we in future, If OEM product this sure be case, this In option. the to added are names model more correctly. the model with name you are dealing to select each for value adjustment write to required command The is called which parameter, a model-unique includes adjustment name the to define model is of selecting The purpose R-code. model. the to specific is which parameter the   applies to the model on which you are making adjustments, then then you are making model to the adjustments, which on applies Enter. press key. 6. appears. screen following The 7. which destination the select 5-2), (Figure screen in option the From 5. Enter press only, 900 Color Stylus is name model indicated the If NOTE: Stylus COLOR 900 COLOR Stylus Please select the model name. model the select Please E s c Q : u U it p /D o w n a rro w s : S e le c t E n te r: O K <*><*><*> Service Program boot process <*><*><*> <*><*><*> process boot Program Service <*><*><*> Figure 5-1. Screen after Start-up Sequence Start-up after Screen 5-1. Figure manual for the Stylus Color 900. Color Stylus for the manual

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 134 5.2 Adjustments to Be sure adjustment. each for procedure the describes section This starting before 5.1.1 Section in tables and CAUTION the observe adjustments. Operation Preliminary 5.2.1 actual to prior required is which operation, preliminary the Perform below. the steps by following operation, adjustment 1. PRIF4. with printer PC and the Connect 2. on. the printer Turn 3. service the to attached (SC900.EXE) program service the Launch 4. appears. screen following The Revision C Revision ******* 900 SER VICE PR O G *** R 1.2 AM Version < < A d< ju < s tm A d e< ju n < s 1 t tm M > > e< a n in < te 2 t P n > rin a > t A n c 4 e P > a > tte rn > > <><> SER VICE ITEM S <><> E S C : Q u U it p /D o w n a rro w s : S e le c E t n te r: O K Figure 5-4. Menu Screen 5-4. Main Adjustment Figure ********** ********** E P S O N S tylus C O L O R

If “Get (Check this model name)” is selected, the printer writes the writes printer the is selected, model name)” this “Get (Check If the EEPROM, Step 5 into begins in selected then the value 2) the Hardware 1) Resets the data; to read routine following For this 3) name. Reads the model state idles to the Returns the Since data. read to seconds 30 - 25 takes printer the reason, to countdown the shows 900 Color Stylus the for program service whole the until wait to time of period the of person service the inform is (from the EEPROMthe data) process writing to to reading completed.

NOTE: 10. program)”. this (Boot “Perform Select 11. 5-4 appears. shown in Figure screen The main adjustment P name) model e rfo rmN (B o (Re-select o o th t is PG R e O t (C G h R e c A k M th is ) m o d e n l a m e ) D o you start the Service Program ? Program Service the D start o you E s c Q : u U it p /D o w n a rro w s : S e le c t E n te r: O K screen. made in selection the wrong you correct lets which 5 Step 6. Step or 6. 5 orStep Step in made destination) details.) for column right the in note the (See <*><*><*> Service Program boot process <*><*><*> <*><*><*> process boot Program Service <*><*><*> Figure 5-3. Screen after Destination Selection Destination Screen after 5-3. Figure

To select To select CG; NLSP STD. or settings). selectable (user settings various To initialize   9-1. Perform:9-1. adjustment main the to proceed directly to this Select The purpose of the operation 7 in Step of the are: operation The purpose No:9-2. 5-1), (Figure screen to the initial return to this Select Get:9-3. (model name/ the selection confirm to this Select

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 135 9. means the following: 5-3) screen (Figure in the Option NOTE: 8. appears. screen following the seconds, 6 or 5 In Revision C Revision M arket Destination Check Destination M arket E s c : P re v io u s E n te r: O K C hecking the present Market Destination Market present the C hecking Figure 5-6. Market Destination Check Selection Screen Selection Check Destination Market 5-6. Figure selection made in Section 5.2.1 / Step 6. (The following figure is a is figure following (The 6. Step / 5.2.1 Section in made selection selected.) EDG is for version NLSP the when screen sample 5. appears. screen following The 6. key again. the Enter Press 7. the you to check enables The screen appears. screen The following ******* 900 SER VICE PR O G *** R 1.2 AM Version << Adjustment 1 >> << Adjustment M arket Destination Check Destination M arket H ead Actuator Voltage ID Input ID Voltage H ead Actuator E S C : Q u U it p /D o w n a rro w s : S e le c E t n te r: O K Figure 5-5. Sub Adjustment Screen 5-5. Sub Adjustment Figure ********** ********** E P S O N S tylus C O L O R key.

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 136 5.2.2 Market Destination 5.2.2 Check in selected destination the how to confirm describes section This / 5.2.1 name (Section model the reading Unlike 6. Step / 5.2.1 Section printer’s the data from reading only includes routine this Step 9-3), immediately. checked be can destination marked the Therefore, RAM. 1. operation. preliminary the perform 5.2.1, Section to Referring 2. 5-4). (Figure screen adjustment main the in 1” “Adjustment Select 3. appears. screen following The 4. the Enter and press Check” Destination “Market to cursor Move the Revision C Revision Esc: Previous Esc: C heck present data C present heck data Input H ead Actuator Voltage ID Input ID Voltage H ead Actuator M arket Destination is W orld NLSP. W orld is Destination M arket R eading out the present Market Destination Market present the out R eading E s c : P re v io u s U p /D o w n a rro w s : S e le c t E n te r: O K Figure 5-8. Screen 5-8. Head ID Input Figure ****** Don't install a brand-new I/C before you turn on the printer. ****** printer. on the turn you before I/C brand-new a install Don't ****** There is a possibility that you encounter the ink out error if you ignore the follow ing ing follow the ignore you if error out ink the encounter you that procedure ing you m follow keep the ust Therefore, possibility a head. is print There the replacing for procedure brand-newa head. occur.) w hen you reinstall w ill wprogram ill the error ID, out head the 1. (I/C m you a brand-new head. head is-type w old dow sequence. ith the 2. Replace new ent W replacem n the head (If ID. rite I/C printer. usual head. the by on the obeying 3. Turn on the brand-new I/C the w mode.) 4. ritten ID Install head the input the Input to return 5. Handsuch ead the B as Ahead ent adjustm i-D. ngular the to atically autom C ontinue Figure 5-7. Screen 5-7. Head ID Input / Selection Figure Check 5.data”. “Input Select

After replacing the printhead, be sure to install a new install ink be sure to the printhead, replacing After the inputting before sequence replacement I/C in the cartridge Head ID. turning I/C before the you install if the printhead, replacing After power on the may cause the Head next Hot on the printer, Error all loses printer the and Error), Out Ink = Indication (Panel condition. error that in PC the by controls the revised one (TEE01D or newer). or (TEE01D one revised the   1.replaced. been has printhead The 2. has been The C265 Main board replaced. 3. with replaced is or 01C) 01B, TEE012A, ROM (version When the head ID. digit

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 137 NOTE: 5.2.3 Head Actuator Voltage 5.2.3 Input operation Head ID. this Perform how to input describes section This conditions: the following under 1. 22- a of note a make board, main or printhead the replacing Before 2.operation. preliminary the perform 5.2.1, Section to Referring 3. ID Input”. Voltage and “Head Actuator 1” then “Adjustment Select 4. appears. screen following The Revision C Revision Old printhead:Old C. or B, A, is digit 22th The New printhead: is D or newer. The 22th digit Like ROMs mentioned in step 7, there are also new and old versions versions new and old are also there step 7, ROMsin Like mentioned defined are printheads old and printheads new The printheads. for below: as described   combinations four of total are there versions, of diversity the to Due them, of combinations two For ID. printhead and ROM version of head converts ROM or prompts replacement program the however, even quality print the keep to required is This registered. be to ID can be easily operation complicated This combinations. among all the program.See this of user interface the done by following input. ID of process detailed the for page next the in flowchart

NOTE: O ld ROO ld M older) (TEE01C or N e w R O M (T E E 0 1 D o r la te r) W hich R O M version does your printer have ? have printer your does RW O M hich version You can find the current RO M version by rem RO by oving M version current the You find can th e T y p e -B I/F c o v e r. E S C : Q u U it p /D o w n a rro w s : S e le c E t n te r: O K Figure 5-9. ROM Version Selection Screen Selection Version ROM 5-9. Figure installed ROM. Note the ROM version whose last digit is A, B, or C or B, A, is digit last whose version ROM the ROM. Note installed D newer is with one or as “Old the ROM”, tailed while defined is ROM”. “New as defined “New screen. ROM” in the

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 138 6. appears. screen following The 7. currently the of version the and check interface the Type-B Remove 8. ROM” or “Old select Old, New or status; ROM the checking After Revision C Revision pensation. pensation. pensation. ID input menu. input ID menu. input ID menu. input ID The input ID is registered in the the in registered is ID com The input EEPROM without the in registered is ID com The input EEPROM without the in registered is ID com The input EEPROM without registers it in the EEPROM . the in and automatically The program data, it input the com pensates registers H ead ID input screen 2 screen H input ead ID screen

version is old. version the converts automatically program the combination, this For be please Therefore, head. old the matches ID the so ID input one the from differs screen the in indicated ID the that aware input. actually have you

2) 2) printhead’s new installed is the and The ROM’snewly version The program prompts to prompts ROThe program the old M the w ith replace newer) one (TEE01D ent. or replacem revised after Y key the and press essage N ew head newerD or N ew head newerD or C or older C or O ld head O ld O ld head O ld older C or W hat W hat code show code ? show code ? does the 22nd the does 22nd the does digit of the technical the of digit technical the of digit input code New ROM New TEE01D newer or W hat is the the W is hat R O M version? START

version is new. is version the you to revise prompts the program combination, For this the old a ROMROMs do because with new version not current printheads. new support

As shown in the flowchart, there are two specific cases, which which are: cases, are two specific there As shown in the flowchart, 1) printhead’s old installed and the is newly The ROM’s version

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 139 NOTE: Revision C Revision 04B434D 4852500000000S

h a s b e e n w ritte n in E E P R O M . R eading and coverting now for confirmation. now for and coverting R eading As the head actuator voltage, head actuator As the 04B434D 4852500000000S

ESC: Previous ESC: Figure 5-12. 22-digit ID Input Sequence ID Input 5-12. 22-digit Figure W ritin g n o w o n E E P R O M . h a s b e e n w ritte n in E E P R O M . HEAD ACTUATOR VOLTAGE ID is correctly accepted. correctly is HEAD ACTUATOR VOLTAGE ID As the head actuator voltage, head actuator As the * New ROM New * * Enter the 22-digit voltage ID voltage 22-digit the Enter HEAD ACTUATOR VOLTAGE ID = HEAD ACTUATOR VOLTAGE ID Figure 5-11. Screen for ID Correction (for New ROM)(for ID Correction 5-11. for Screen Figure wrong ID, the program automatically calculates and detects it. The The it. and detects calculates automatically the program wrong ID, shows screen following The screen. input ID the to returns screen press screen, this a wrong ID. In for takes the program process the (Figure Screen Input ID Head the to returns screen and the Enter, 5-8). screens appear in sequence as shown in Figure 5-12, and the ID is and the ID is 5-12, as shown Figure in sequence in appear screens messages the screen RAM. (Though in the printer’s registered actually is EEPROM, it the in input been has ID the that indicate off.) turned is printer the EEPROM when the into written next adjustment. to the to continue menu screen

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 140 9.a type you If of. a note made you ID Head 22-digit the exactly Type 10. 3 following the input, correctly been has ID 22-digit the When 11. adjustment sub the to returns The screen twice. ESC key Press Revision C Revision ill b e p rin te d . Figure 5-15. 5-15. Figure H ead Angular Adjustment H ead Angular Print the head angular adjustment pattern adjustment head angular the Print adjustment H ead angular Esc: Previous U p/Dow n arrow s: Select Enter: OK Enter: Select s: U p/Dow n arrow Previous Esc: The H ead Angular Adjustment pattern w pattern Adjustment The H ead Angular Figure 5-14. Head Angular Adjustment Initial Screen 5-14. Initial Head Angular Adjustment Figure Screen during the Head Angular Adjustment Pattern Print Adjustment Pattern Head Angular the during Screen current head angular condition. head angular current Pattern. Adjustment Angular 3. appears. screen following The Adjustment”. Angular “Head Select 4. the check to pattern” adjustment angular head the “Print Select 5. Head running starts and the printer appears screen The following ******* 900 SER VICE PR O G *** R 1.2 AM Version << Adjustment 2 >> 2 << Adjustment H ead Angular Adjustment H ead Angular Bi-Directional Adjustment Bi-Directional E S C : Q u U it p /D o w n a rro w s : S e le c E t n te r: O K ********** ********** E P S O N S tylus C O L O R Figure 5-13. Adjustment 2 Selection Screen Selection 2 Adjustment 5-13. Figure been replaced.) been before plate the fixing head securing two screws to release do to so may damage the lever.) Failure the lever. moving in shaft the CR guide lubricating before printhead the remove to 6 to Chapter “Maintenance”.) Refer printer. this

1. has (When the printhead has been removed. The printhead 2. has been moved. (Be sure lever adjustment The head angular 3. are you required (Notice has been CR Guide Shaft lubricated. 4. removed. been has shaft guide CR Adjustment. Angular Head for paper Fine Super use to sure Be screen appears. screen

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 141

5.2.4 Head Angular Adjustment This adjustment the angular. head how to adjust describes section This conditions: following the under made be must NOTE: 1.operation. preliminary the perform 5.2.1, Section to Referring 2. The following 2”. “Adjustment select menu, adjustment main In the Revision C Revision Figure 5-19. 5-19. Example to be Selected Figure Two white Two white are lines symmetry. width. same the are lines left and right Both the one with the have white lines, patterns all If examples the See best. the is (line) lines narrowest the above, conditions the Considering below. Example 5 is the best. E xam 1 ple E xam 2 ple E xam 3 ple E xam 4 ple E xam 5 ple If you don’t find a perfect H without white lines, please please lines, white H without a perfect find don’t you If below: the condition satisfies the one which find    you do not need to continue to the next step. If the head angular head angular If the step. next to the do not you need to continue step. next the to continue adjusted, be to needs has automatically screen the time, is NG. By this pattern output (Figure screen Initial Adjustment Head Angular to the returned Adjustment”. “Head Angular you are to where select 5-14), POINT CHECK 8. was found, no problem if 7, Step in procedures the performing After 9. when the follow to steps the includes of the procedure The rest Pattern 5 Pattern Pattern 5 Pattern W hite lines appear sym m appear etrically. lines W hite Pattern 2 3Pattern 4 Pattern Pattern Figure 5-17. Figure OK5-17. Patterns Figure NG5-18. Patterns W hite lines appear on the sam position. e on the appear lines W hite Pattern 1 Pattern Pattern 1 2Pattern 3 Pattern 4 Pattern Pattern O K P a tte rn N G P a tte rn shape patterns are good or not. The figures includes four patterns patterns four includes figures The not. or good are patterns shape which are NG (No Good). are OK patterns which four and

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 142 Figure 5-16. Print Result of the Head Angular Adjustment Pattern Adjustment of the Head Angular Result Print Figure 5-16. 6. sheet. the ejects and automatically printing executes printer The 7. the H- whether determine 5-18, 5-17 and Figure to Figure Referring Revision C Revision

(The top screen in Figure 5-22) Figure screen in (The top 5-22) Figure in screen middle (The appears. screen 5-22) Figure in screen middle the performs automatically and the printer appears CL1). (level: cleaning

If no printing data (command) is input to this printer for 3 minutes for 3 minutes printer this is to input data (command) no If printing Pump/ASF the magnetizes which current the on, is power while used also is motor this from sent The drive drops. completely motor special the if reason, this For lever. lock the carriage to lock/release move to 3 minutes after generated is adjustment the for command lever lock carriage the enters directly printer the the carriage, done which is control the rush current without operation releasing that possibility a is there result, a As motor. the magnetizing while and lever released incompletely the because of collides carriage the runs program the that aware be please Therefore, occurs. error the action no if hardware the by supported originally is that cleaning a the if Note carriage. the moving before was made 3 minutes for Head Angular the printing before cleaning the enters printer the program case, In this not it abnormal. is Pattern, Adjustment misunderstanding. avoid to below steps the follows 1:Note Step appears. 5-20) (same as in Figure screen The initial 2: Step Note next the more, or minutes 3 for taken is no action If 3:Note Step key. (The Enter the press prompts, program As the 4: Step Note 5-22) Figure in screen bottom (The screen next The

12.5-20). (Figure screen the in “Yes” Select NOTE: . (Be careful not to ° - 180 ° Yes No Figure 5-20. 5-20. Figure Screw securing the H ead Fixing Plate H ead Fixing the securing Screw E s c : P re v io u s U p /D o w n a rro w s : S e le c t E n te r: O K Yes/No Selection Menu before Head Angular Head Adjustment Yes/NoMenu before Selection Angular remove it completely.) If you have already selected No in the No the in selected you have already If it completely.) remove you to loosen to a message prompt indicate will the program screen, to sure Be below.) figure the (See adjustment. the to prior screw the the you have loosened after 5-20) (Figure the screen “Yes” in select step. this in as instructed screw left of the carriage unit by turning it 90 it by turning unit carriage of the left Figure 5-21. Screw Securing the Head Fixing Plate on the Plate Left on the the Head Fixing Securing Screw 5-21. Figure

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 143 10. appears. screen following The 11. the on plate fixing head the securing screw the loosen point, this At Revision C Revision C ap unit . (Do not remove it it . (Do not remove ° - 180 - ° E n te r: O K 2. push the color I/C from front side by using fine driver or tweezers. or and press driver lever, fine first, using by at adjustment side side angular m have you the oved front right from the After screws I/C 1. the color the push tighten 2. be printed. gently Please 3. w ill pattern th e adjustment E The head angular n4. te r k e y . In c a s e o 1 f s t p rin t: Screw (right) securing the Head Fixing Plate Head Fixing the securing Screw (right) toward the 80th column. column. 80th the toward completely.) the carriage unit by turning it 90 it turning by unit carriage the Figure 5-24. Screw Securing the Head Fixing Plate Plate the Head Fixing on Right 5-24. Screw Securing Figure Figure 5-23. Screen after “Head Angular Adjustment” Selected is Adjustment” “Head Angular Screen 5-23. after Figure 13. moves automatically and the carriage appears screen The following 15. 5-23). (Figure screen the in key Enter the Press 14. of side on the right plate the head fixing screw securing Loosen the Press the Enter key. Enter the Press After it takes 3 m inutes. takes it After Yes No Yes No D id you loosen the screw on the left side of the CR the ? of side left on the screw the loosen you D id E s c : P re v io u s U p /D o w n a rro w s : S e le c t E n te r: O K The printer has been left alone for 3 minutes. The ASF pum m p, move. otor 3 minutes. not for alone w ill carriage and left been has m agnetized, The printer properly been hasn't key. E the P nter press lease Figure 5-22. Recovery from Unmagnetized Status Unmagnetized from Recovery 5-22. Figure D id you loosen the screw on the left side of the CR the ? of side left on the screw the loosen you D id E s c : P re v io u s U p /D o w n a rro w s : S e le c t E n te r: O K N ow perform C L1 in order to recover the m otor's m agnetized state. m agnetized m the otor's operation. recover this to order during C N L1 in ow ignored perform are keys and all 90 seconds, about C L1 takes

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 144 Revision C Revision R e-Adjustment End E s c : U p /D o w n a rro w s : S e le c E t n te r: O K D o not eject a paper until you've printed out 5 patterns. out printed you've state. and lever until a paper pattern eject best D o not the out And select

Figure 5-27. Prompt to Move the Angular Adjustment Lever Adjustment Angular the Move to Prompt 5-27. Figure During the step 12 onward, the printhead is left away the from away is left printhead 12 onward, the the step During as fast as adjustment make this please Therefore, position. capping Otherwise, from drying. surface printhead the to prevent possible as a result. problem the print time on solving spend extra will you appears. screen following

NOTE: 18.5-25). (Figure screen the in key Enter the Press 19. The Pattern. Adjustment Head the runs Angular The printer 20. 5-27). (Figure the screen in “Re-Adjustment” Select E n te r: O K Angular Lever Center position Center Lever Angular 2. push the color I/C from front side by using fine driver or tweezers. or and press driver lever, fine first, using by at adjustment side side angular m have you the oved front right from the After screws I/C 1. the color the push tighten 2. be printed. gently Please 3. w ill pattern th e adjustment E The head angular n4. te r k e y . In c a s e o 1 f s t p rin t: center value is marked with the protrusion, it can be easily can be it easily the protrusion, marked with is value center found.) tweezers. of driver fine a using side screw. left Figure 5-26. Setup for the Head Angular Adjustment Lever Adjustment the Head Angular Setup 5-26. for Figure Figure 5-25. Prompt to Move the Angular Adjustment Lever Adjustment Angular Move the to Prompt 5-25. Figure

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 145 17-2. by tolerance eliminate to side front the from I/C color the Push 17-3. the tighten then gently at first, side screw right the tighten Gently 16. appears. screen following The 17-1. the (As position. center the to lever angular the set first, At Revision C Revision

shown in Figure 5-27 appears again. appears 5-27 Figure in shown on one A4 in sequence. of paper page patterns 5-27. shown in Figure screen to the returns automatically program 5-17 Figure and in Figure given patterns based on the reference pattern. selected the for position lever angular and ensure the 5-18, in suitable most the as selected position the to lever angular the 5-28. Figure in shown condition the to returns The screen 27. Step mechanism the of part lower the in remains however, pattern, The condition changes to the be and The screen frame seen. can not 5-27. Figure in shown button the Eject 30 used in Step by the pressing sheet Do not eject between the you do mismatching If so, the pattern. to check occur, will adjustment the for command and the special firmware irregularly. move to carriage the causes which 31.“End”. select 5-27), (Figure screen the In 22. 17-2 and 17-3. as the step Perform the same operation 23. 5-28. Figure in shown screen the in key Enter the Press 24. The screen Pattern. Adjustment Head the runs Angular The printer 25. 5 print and times more 24 three Step 20 through Step Repeat 26. sheet and the the ejects the printer 5 patterns, printing After 27.one desirable most the select patterns, check output 5 the From 28. and set “Re-Adjustment” select 5-27, shown Figure In the screen in 29. key. Enter the press 5-28), (Figure screen the In 30. position. selected the to set lever angular the with prints printer The NOTE: ill b e p rin te d . E n te r: O K O ne notch dowO n ne notch Angular Lever Center position Center Lever Angular Figure 5-28. Re-adjustment Screen Re-adjustment 5-28. Figure 2. push the color I/C from front side by using fine driver or tweezers. or and press driver fine lever, first, using by at adjustment side side angular m have you the oved front right from the After screws I/C 1. the color the push tighten 2. gently Please 3. w pattern th e adjustment E The head angular n4. te r k e y . In case of others(2nd, 3rd, 4th, 5th): 4th, 3rd, others(2nd, of case In s. screw both Loosen 1. 4). to Obey steps(1 above 2. In c a s e o 1 f s t p rin t: laeb uentt v h drn n prto nti dut ent. adjustm this in m to C not any ove be operation R the sure Please during Figure 5-29. Lever Figure Moving the 5-29. Head Adjustment 5-28. 5-28. the one step from lever angular the move (forward) down Then, the two screws. you loosen after position center

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 146 21. shown in Figure to the screen advances automatically The screen Revision C Revision 30 Enter: OK Enter: Resetting hardware now. hardware Resetting >** Don't use any com m ands until the C R 's m otion is com pleted. **< com pleted. is m C R otion the 's com any use m until ands Don't >** Figure End Head Adjustment 5-30. Sequence Angular Figure (Figure 5-14) and the next adjustment can be selected. and the next adjustment 5-14) (Figure Reset, takes approximately 30 seconds to execute. During this this During execute. 30 to seconds approximately takes Reset, message the and countdown shows programs the sequence, and program using the on any action restriction indicating commands. generating carriage the initializes which here, performed Reset Hardware The there because important, very considered is management, location the during changes slightly position print the that a is possibility adjustment.

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 147 32. appears. screen following The 34. screen Initial Head Adjustment to Angular returns The screen 33. Hardware called sequence, This in an instant. off turns The printer NOTE: Revision C Revision Figure 5-32. 5-32. Figure ESC: Previous Previous ESC: OK Enter: Print the Bi-d adjustment pattern for present data +2 present data for present +2 data, pattern data present present adjustment Bi-d data, data-2, the present +2 present data Print -2, Dot: data present present data, Variable-1 Dot: present -2, Variable-2 data present Dot: N ormal

1. dots) dot (forms small/middle Variable 2. dots) normal dot (forms Variable 3. dot only Normal Screen after “Print the Bi-D adjustment pattern” is Selected pattern” Bi-D adjustment the “Print Screen after

The following three items are adjusted with the Bi-D Adjustment. Bi-D the with adjusted are items three following The consequently. pattern adjustment 4. in the screen. pattern” adjustment the Bi-D “Print Select 5. appears. screen following The NOTE: 6. key. the Enter Press 7. Bi-D runs the and the printer appears screen The following Bi-Directional Adjustment Bi-Directional Print the Bi-D adjustment pattern adjustment Bi-D the Print Adjust adjustment C present heck ESC : Previous U p/Dow n arrow s: Select Enter: OK Enter: Select s: U p/Dow n arrow ESC Previous : Figure 5-31. Bi-Directional Adjustment Screen Adjustment Bi-Directional 5-31. Figure

with the revised one the revised (See (TEE01D for or newer). with 5.2.3 Section details.) 1. has been replaced/removed. The printhead 2. has occurred.) problem (A print not are aligned. lines Vertical 3. replaced. been has Board Main C265 4. is replaced TEE012A, 01B, or When the ROM01C) (version

Bi-Directional Adjustment value is not cleared with EEPROM with cleared is not value Adjustment Bi-Directional specific and counter protection the (resetting Initialization addresses). Adjustment”. “Bi-Directional then

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 148

5.2.5 Bi-Directional Adjustment Bi-Directional 5.2.5 This Adjustment. how to make Bi-Directional describes section This conditions. must following the be made under adjustment NOTE: 1.operation. preliminary the perform 5.2.1, Section to Referring 2. 5-4) (Figure menu adjustment main the from 2” “Adjustment Select 3. appears. screen following The Revision C Revision Normal Dot Only Dot Normal Variable (Sm all and M iddle dot) M and iddle (Sm all Variable N ormal Dot (Single, D ouble, etc.) D ouble, (Single, Dot N ormal Figure 5-34. Bi-D Adjustment Pattern Sample Pattern Adjustment Bi-D 5-34. Figure V a ria b le -1 D o t B i-d D a ta = -2 V a ria b le -1 D o t B i-d D a ta = 0 V a ria b le -1 D o t B i-d D a ta = 2 V a ria b le -2 D o t B i-d D a ta = -2 V a ria b le -2 D o t B i-d D a ta = 0 V a ria b le -2 D o t B i-d D a ta = 2 N o rm a D l o t B i-d D a ta = -2 N o rm a D l o t B i-d D a ta = 0 N o rm a D l o t B i-d D a ta = 2 B i-d p a tte rn is b e in g p rin te d o u t n o w . E S C : P re v io u s E n te r: O K Figure 5-34 in the right column. in the right 5-34 Figure 5-31). (Figure screen Adjustment Bi-Directional the completely is none the lines if of Note line. vertical aligned closely aligned closely most the for value the select can you aligned, be will print pattern adjustment next the for value centre The pattern. accordingly. replaced Figure 5-33. Screen during the Bi-D Adjustment Pattern Print Pattern Adjustment the Bi-D Screen 5-33. during Figure

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 149 8. in sample shown in the items includes pattern A Bi-D adjustment 9. to returns screen the running, is pattern adjustment Bi-D the While 10. the the value most for each of 3 select for items, Among the patterns Revision C Revision has been w ritten in EEPR in O M . been w has ritten +4 ESC: Previous ESC: Variable-1 D ot Bi-D adjustment Bi-D D ot Variable-1 As the variable-1 Dot data, data, Dot variable-1 As the the figure) increases/decreases. So you can select the desirable desirable the can select you So increases/decreases. figure) the value. following screen appears. screen following Regardless of the value you have input, the center value (selected (selected value center the you have input, value of the Regardless in the value The “0”. be sample will pattern the next Bi-D in value) input. be can 34 to -34 from range 5-35). (Figure screen “Normal can select you lines, aligned has the completely pattern Dot” instead.) Figure 5-37. Screen after the Adjustment Value has been Written Adjustment the 5-37. after Screen Figure 15. in blue in (shown value the pressed, is key Arrow Up/Down the As 16. The key. Enter the press is selected, value When the desirable NOTE: 17. mode to the the ESC Bi-D Adjustment return selection Press key to 18. Dot the value Variable-2 for center the (If Dot”. “Variable-2 Select 19. appears. screen following The 4 V a ria bV le Dot a -1 ria D bNormal o le t -2 D o t Variable-1 D ot Bi-D adjustment Bi-D D ot Variable-1 M o d e s e le c tio n o f B i-d a d ju s tm e n t S elect an adjustm ent value w ith the U the p/Dow w an value adjustm ent ith n arrow keys.S elect E S C : P re v io u s U p /D o w n a rro w s : S e le c t E n te r: O K E S C : P re v io u s U p /D o w n a rro w s : S e le c t E n te r: O K Figure 5-35. Bi-D Adjustment Mode Selection Screen Selection Mode Adjustment Bi-D 5-35. Figure Figure 5-36. Adjustment Value Input Screen (Variable-1) Screen Value Input 5-36. Adjustment Figure pattern has the completely aligned lines, you can select “Variable-2 “Variable-2 select can you lines, aligned has the completely pattern instead.) Dot”

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 150 11. screen. the in “Adjust” Select 12. appears. screen following The 13. Dot Variable-1 for the value center the (If Dot”. “Variable-1 Select 14. appears. screen following The Revision C Revision 4 Normal Dot Bi-D adjustment Bi-D Dot Normal eeta dutetvlewt h pDwnarwkeys. Up/Dow n arrow the with value an adjustment Select E S C : P re v io u s U p /D o w n a rro w s : S e le c t E n te r: O K Figure 5-40. Adjustment Value Input Screen (Normal Dot) Screen (Normal Value Input Adjustment Figure 5-40.

screen (Figure 5-35). (Figure screen adjustment.) this can finish you lines, aligned completely the has desirable the can select you So increases/decreases. figure) the value. (selected value center the you have input, value of the Regardless in the value The “0”. be sample will pattern the next Bi-D in value) input. be can 34 to -34 from range 26. key. Enter the press is selected, value When the desirable 22. mode to the the ESC Bi-D Adjustment return selection Press key to 23. Normal Dot for pattern the value the center (If Dot”. “Normal Select 24. appears. screen following The 25. in blue in (shown value the pressed, is key Arrow Up/Down the As NOTE: 4 has been w ritten in EEPR in O M . been w has ritten +4 ESC: Previous ESC: N ormal Dot Bi-D adjustment Bi-D Dot N ormal Variable-2 D ot Bi-D adjustment Bi-D D ot Variable-2 S e le c a t n a d ju s tm e n v t a lu e w ith th e U p /D o w n a rro w k e y s . A s th e N o rm a D l o t d a ta , E S C : P re v io u s U p /D o w n a rro w s : S e le c E t n te r: O K Figure 5-38. Adjustment Value Input Screen (Variable-2) Screen Value Input 5-38. Adjustment Figure following screen screen appears. following the figure) increases/decreases. So you can select the desirable the desirable So you can select increases/decreases. figure) the value. (selected value the center you have input, of the value Regardless the in The value be “0”. will sample pattern Bi-D next the in value) input. be 34 can to -34 from range

EPSON Stylus Color 900 Color EPSON Stylus Figure 5-39. Screen after the Adjustment Value has been Written the Adjustment Screen 5-39. after Figure Adjustment Adjustments 151 21. The key. the Enter press is selected, value When the desirable 20. in blue in (shown value the pressed, is key Arrow Up/Down the As NOTE: Revision C Revision has been w ritten in EEPR in O M . been w has ritten +4 ESC: Previous ESC: N ormal Dot Bi-D adjustment Bi-D Dot N ormal As the variable-1 Dot data, data, Dot variable-1 As the Press the ESC key twice and select “Market Destination Destination “Market select and twice ESC key the Press menu. the from Check” Pattern” A4 “Print select and times three ESC key the Press “SERVICE ITEMS”. from 1. Check: Destination Market 2. A 4 Pattern: Print

turns off and back on in an instant and the adjustment values are values and adjustment the an instant and back on in off turns results, adjustment the check to you need EEPROM. If the in stored operation. following the perform to be made on the adjustment the last is Adjustment Bi-Directional Angular as “Head such adjustments perform Never program. “Bi- after Input” ID Voltage Actuator “Head and Adjustment” details.) for 5-1 Table to (Refer Adjustment”. Directional

EPSON Stylus Color 900 Color EPSON Stylus Figure 5-41. Screen after the Adjustment Value has been Written the Adjustment Screen 5-41. after Figure Adjustment Adjustments 152

27. appears. screen following The 28. The printer 5 times. ESC the key press the adjustments, To execute NOTE: Revision C Revision H ead cleaning perform H ead cleaning M ode selection of the head cleaning the of M ode selection E s c : P re v io u s E n te r: O K Figure 5-43. Cleaning Screen Cleaning 5-43. Figure <> this be done in will (CL2) cleaning <> << M aintenance ************ E P S O N S tylus C O L O R 9 0 0 S E R V IC E P R O G R A M V e rsion 1 .0 ************** Figure 5-42. Menu Figure Main maintenance 5-42. Screen

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 153 5.2.6 Printhead 5.2.6 Cleaning Using the Program function. cleaning has the 900 Color Stylus the for program The service cleaning the most powerful with executed The command is always called dummy with the cleaning equipped is not the printer mode. Note problem clogging nozzle the to solve you can attempt CL3. Therefore, repeatedly. panel on the control button the Cleaning by pressing 1.operation. preliminary the perform 5.2.1, Section to Referring 2. menu. adjustment main the from “Maintenance” Select 3. appears. screen following The 4.Cleaning”. “Head Select Revision C Revision Esc: Previous Esc: It takes about 88 seconds. about takes It << W riting initial ink charge flag is com pleted. >> com pleted. is flag charge ink initial << W riting Turn off the printer once and "wait for 10 seconds" 10 seconds" for and "wait once printer the off Turn >** D on't use any com m ands until Initial Ink C harge com pletes. **< com C harge pletes. Ink Initial com any use m until ands D on't >** If you w ant to perform initial ink charge w ith a new ink cartridge, a new ink w w ith charge ith ink the cartridge ink pressing by initial current ************************************************************************** the perform start to w you ant and replace operate-SW w If the ill charge ink off turn Then initial a new one. again. operate-SW ************************************************************************** Initial Ink in sequence. Ink Charge Initial Figure 5-45. Message during Ink Charge Flag Reset Operation Ink Charge Flag Reset 5-45. Message during Figure 6. “Yes”. Select 7. appears. screen following The 8. off. printer Turn the 9. seconds. 10 for is as it printer the Leave 10. and then Initialization performs printer on. The back printer the Turn Yes No In In l itia k C h a rg e ----> D o y o u w a n t to re s e t th e in itia in l k c h a rg e fla g ? P e rfo rm[ T o th ta e q l in u[ T itia in a l o k n ta c tity q l h o u a f b a rg la n c e tity k . o in f c k o a lo b r in s k o a rp b tio s n o = rp 4 tio .3 n m = 6 ] l .3 m ] l E s c :P re v io u sU p /D o w n a rro w s : S e le c E t n te r: O K * * P e rfo rm th is o p e ra tio n a fte r in s ta llin g b o th n e w in k c a rtrid g e s . * * N ote that 1/70(Bk), 3/10(YM C ) of non-used ink consum ed by one time. consum time. one by ed ink non-used of C 3/10(YM ) --B 1/70(Bk), e c a that N re ote fu o l f in k c o n s u m p tio n -- Cartridge Replacement Sequence before performing Initial Ink Initial performing before Sequence Replacement Cartridge Charge. clogged.) are still nozzles but has been the panel done, control 1. replaced. been has Board Main C265 2. Ink (Be sure to perform has been removed. The printhead 3. and program the using (Cleaning clogged. badly are Nozzles with new ones. (If ink runs out during the operation, Initial Ink charge charge Ink Initial operation, the during out runs ink (If new ones. with when again installed.) a new I/C is begins Figure 5-44. Screen after “Ink Charge Flag Reset” is Selected is Reset” Flag Charge “Ink after Screen 5-44. Figure

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 154 5.2.7 Initial Ink Charge must be It Charge. Ink Initial how to perform describes section This conditions. under the following performed 1. be replaced cartridges ink installed the currently that is It advisable 2.operation. preliminary the perform 5.2.1, Section to Referring 3. menu. adjustment main the from “Maintenance” Select 4. Reset”. Flag Charge “Ink Select 5. appears. screen following The Revision C Revision Esc: Previous Esc: It takes about 88 seconds. about takes It << W riting initial ink charge flag is com pleted. >> com pleted. is flag charge ink initial << W riting Turn off the printer once and "wait for 10 seconds" 10 seconds" for and "wait once printer the off Turn >** D on't use any com m ands until Initial Ink C harge com pletes. **< com C harge pletes. Ink Initial com any use m until ands D on't >** If you w ant to perform initial ink charge w ith a new ink cartridge, a new ink w w ith charge ith ink the cartridge ink pressing by initial current ************************************************************************** the perform start to w you ant and replace operate-SW w If the ill charge ink off turn Then initial a new one. again. operate-SW ************************************************************************** Figure 5-47. Protection Counter Indication Screen Counter Indication 5-47. Protection Figure 23,300 points, respectively. If any of the current values is close to to close is values current the of any If respectively. points, 23,300 Please “0”. to be reset should values counter protection the limit, the only 5-47 Figure timing shown in replacement the that be aware to continue counters, the To clear values. reference the indicates 7. Step Before clearing the protection counters, be sure to replace the replace be to sure counters, protection the clearing Before may encounter user the Otherwise, new ones. with pads ink waste leakage. ink 6 to Chapter “Maintenance”. new referring with ones, menu and next adjustment main from the “Maintenance” select pad”. ink waste for the value counter of the “Indication 5. appears. screen following The 6. and 25,800 are pads and right left for the The maximum values NOTE: 7.pads ink waste the replace PC and the from printer the Disconnect 8.Then operation. preliminary the perform 5.2.1, Section to Referring Figure 5-46. 5-46. Figure Protection counter CHECK/CLEAR counter Protection C heck the protection counter values counter values counter protection Cthe heck protection the C lear E s c : P re v io u s U p /D o w n a rro w s : S e le c t E n te r: O K Initial Protection Counter Screen - Check/Clear Selection - Check/Clear Counter Screen Protection Initial the main maintenance menu. main maintenance the

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 155 5.2.8 Indication of the Counter Value for the Waste Ink Pad Ink Waste for the Value Counter of the Indication 5.2.8 the for values the and clear how to indicate describes section This ink total the shows which counters) (protection counters pad ink waste 900, Color case of Stylus pads. In the waste ink in amount absorbed printer’s the through values counter and the reset confirm can you the describes only however, This manual, only. operation panel control program. service using the procedure 1.operation. preliminary the perform 5.2.1, Section to Referring 2. pad” from the waste ink for value of the counter “Indication Select 3. appears. screen following The 4. values”. counter protection the “Check Select Revision C Revision Esc: Previous Esc: N ow clearing the protection counter! protection the N ow clearing C heck the counter by pressing the ESC twice. the key pressing by counter C the heck << The protection counter has been reset to zero. >> zero. to been reset has counter << The protection Figure 5-49. Protection Counter Clear End End Screen Clear Counter Protection 5-49. Figure screen (Figure 5-46). (Figure screen “0”. both are values counter 12. appears. screen following The 13. counter protection initial the to return to twice ESC key the Press 14. pad ink left and the right to verify Counter” Protection “Check Select Already replaced Already replaced H not ave Figure 5-48. 5-48. Figure E s c : P re v io u s U p /D o w n a rro w s : S e le c t: E n te r: O K The w aste ink pads m ust be replaced before clearing the counter. the clearing before be replaced m pads ust ink The w aste Selection Menu before Clearing the Protection Counter the Protection Menu before Clearing Selection because you have not replaced the waste ink pads, the screen screen pads, the ink waste the you have not replaced because 5-46). (Figure screen counter protection to the initial returns

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 156 11. replace” not “Have selected have you If replaced”. “Already Select 9. Value”. Counter Protection the “Clear Select 10. appears. screen following The Revision C Revision Esc: Previous Esc: Figure 5-51. 5-51. Figure R efer to C hap. 5 in Service m anual Service 5 in C hap. to R efer Screen after “No” is Selected due to Fan’s due to Fan’s Malfunction “No” is Selected after Screen Yes No Is the fan operation OK ? operation fan the Is E s cP : re v io u s U p /D o w n a rro w s : S e le c E t n te r: O K Figure 5-50. Screen after “Fan Check” is Selected is Check” “Fan after Screen 5-50. Figure If the fan is rotating properly, select “Yes”, and the fan stops stops fan the and “Yes”, select properly, rotating is fan the If rotating. 3 / Chapter Manual Service the to refer case, In this appears. screen prompts. as message the does not rotate”, / “Fan “Troubleshooting”

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 157 5.2.9 Fan 5.2.9 Check In condition. operational fan’s the check to you enables program This when the rotate does not necessarily 900, the fan Color Stylus the on the the (indication Head Hot if Error on. Therefore, turned is printer its for checked be must fan the frequently, occurs Error) Out Ink panel: condition. 1.operation. preliminary the perform 5.2.1, Section to Referring 2. menu. maintenance main the from Check” “Fan Select 3. appears. screen following The 4. rotating. fan starts cooling the appears, 5-50) (Figure screen As the 5. following the does not rotate, fan the because selected “No” is If Revision C Revision Cap Unit Cap Front Paper Guide Paper Front Thickness G auge (1.14 m m G auge (1.14 ) Thickness Figure 5-53. Setting Position of the Thickness Gauge Thickness the of Position Setting 5-53. Figure clamps. mechanism. printer the end of the right 1.14 over mm, 5 the in cm length) (Specifications: surface. top Guide’s Paper Front the thickness gauge moves. gauge thickness the where the thickness gauge is set. thickness where the Doing presses so to move it. directly unit Do not push the carriage correctly not is gap adjustment paper the and down carriage the done. 2. both the close and cartridges) (empty cartridges dummy Install 3.wider). (PG = rear the to (blue) lever PG the Set 4. back of from the lock the carriage release is locked, the carriage If 5. gauge thickness the and place center the to carriage the Move 8. if gauge, check the thickness with is in contact When the printhead 6.narrower). = (PG front the to back (blue) PG lever the Bring 7. position to the carriage move the manually, belt timing the By pulling NOTE: P a ra (Right) Bushing lle lis m A d ju s tm e n t Fixing Screws Fixing Figure 5-52. 5-52. Figure C enter value in the the in value C range enter adjustable (when supplying O-8 oil) O-8 supplying (when shaft removal has been performed. been has removal shaft - guide shaft the carriage Replacing - carriage the of back the at pad oil felt the Replacing - unit the carriage Replacing or replaced. removed P a ra (Left) Bushing lle lis m A d ju s tm e n t Right and Left Parallelism Adjustment Bushing Locations Bushing Adjustment Parallelism Left and Right 1. guide carriage involve which operations following the of Any 2. moved, been has bushing adjustment parallelism Right/left position of the corresponding adjustable range. Make sure the sure Make range. adjustable corresponding the of position for loosened are bushings adjustment parallelism the fixing screws operation. this

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 158 5.2.10 Paper Gap Adjustment Paper 5.2.10 a proper between gap provide to is performed Gap Paper Adjustment be It must made under the and paper surface. surface printhead the be can made without not adjustment (This conditions. following upper case.) the removing 1. middle the to bushings adjustment parallelism left and right the Set Revision C Revision

Set to the front (PG = narrower) Set rear to (PG the = wider)

During the the During adjustment: gauge: thickness away from the When moving the carriage   where the thickness gauge is set and make sure the thickness thickness gauge is set make sure and the thickness where the move. not does gauge same manner in the bushing adjustment parallelism the left with the bushing. adjustment parallelism right the for as Make sure the PG lever (blue) is set properly depending on the on the depending set properly is (blue) PG lever Make sure the as shown below: operation again. Guide Paper thickness gauge is set make sure and the thickness where the move. not does gauge gauge moves. the thickness and ensure by one notch. it downward by turning position again. bushing the left using adjustment 13. the position again to move the carriage the timing belt, By pulling 14. and adjust position gauge on the 80th column the thickness Place NOTE: 15.wider). (PG = rear the to (blue) lever PG the Set 16. the Front rib in of the side gauge on the right the thickness Place 17. = (PG narrower). the front to (blue) PG Set lever the 18. position to the carriage move the manually, belt timing the By pulling 19. notch one by upward bushing adjustment parallelism right the Turn 20. the previous to bushing adjustment parallelism right the Return 21. PG make the of 18 and 19 incorrect, the steps are the results If Figure 5-54. 5-54. Figure PG W : iden PG: Narrowed PG:

adjustment bushing upward by one notch. The direction for moving moving for direction The notch. one by upward bushing adjustment PG as shown in in amount change is and bushing corresponding the figure. following the (right/left) bushing adjustment parallelism the Be sure to release and crush may teeth the Otherwise, it. turning before frame the from be done. not can adjustment the printhead. the by pushed (The belt. the timing gauge set by pulling the thickness from left.) moves back to the carriage notch. one by position

EPSON Stylus Color 900 Color EPSON Stylus Amount PG in Change Corresponding and Movement Bushing’s Adjustment Adjustments 159

9. parallelism right the move move, not does gauge thickness the If NOTE: 10. being gauge moves thickness from the 3 to 9 until the steps Repeat 11. away carriage move moving, the gauge starts When the thickness 12. the current down from bushing adjustment parallelism right the Push Revision C Revision does not move, fasten the screw. the fasten move, not does screw. the fasten move, not does the carriage. back of

EPSON Stylus Color 900 Color EPSON Stylus Adjustment Adjustments 160 22. hand so with your it bushing adjustment parallelism right the Holding 23. your hand so it with bushing adjustment parallelism left the Holding 24. gauge. thickness the Remove 25.the at sensor photo the through it set dislocated, is scale linear the If 26.right. the to carriage the Move 27. the upper case. Install 

MAINTENANCE Revision C Revision 6.1.1 Maintenance 6.1.1 has error request Maintenance or malfunction a printing When sections following the in described measures appropriate take occurred, problem. the solve to Do not short-circuit the battery’s electrodes. electrodes. the battery’s Do not short-circuit in the right polarity with its Mount the battery may or it explode. direction, excessive or flames to battery the expose not Do heat. Unplug the power cable from the AC power inlet inlet AC power the from cable power the Unplug the printer. cleaning before thinner, such as solvents apply Never main printer the clean to keton or trichloroethylene, For is recommended. body. cloth Use of a soft clean neutral use thinned case, the on stain severe the and wring detergent Wet a with cloth detergent. cloth. the of out well detergent may it or cleaning, for brush hard use a Do not case. the scratch when parts no to damage any interior Be careful printer. the inside cleaning This C265 Main board in this printer has a lithium a lithium has printer this in board Main C265 This when below instructions the Observe on it. battery battery. the handling        CAUTION W ARNING EPSON Stylus Color 900 EPSON Color Stylus Maintenance Overview 162 6.1 Overview when a printing problems how to solve describes section This the Observe has occurred. error request or maintenance malfunction for For solutions appropriately. servicing below to perform instructions 5 “Troubleshooting”. Chapter to refer conditions, error other any Revision C Revision END Is th e solved? problem Yes R un a self-test. Level 3 Level Turn the printer off. printer the Turn C leaning using the the using C leaning In itia l In k C h a rg e . No flag in the program. R the e in s eflag t th e in itia l in k c h a rg e on to back C harge. Ink printer the Turn Initial perform END Is th e solved? problem Yes R un a self-test. C leaning using C leaning program the Select "Cleaning" "Cleaning" Select program. the in C leaning Method C leaning C L2 (pow erful) is is C erful) L2 (pow the for used always cleaning. Level 2 Level Perform cleaning Perform w ith th e fo rc ib le C L 2 . No Figure 6-1. Printhead Cleaning Options Cleaning 6-1. Printhead Figure END Is th e solved? problem Yes R un a self-test. Press the the Press Button C leaning C leaning using using panel C leaning control the Perform cleaning cleaning Perform the to according C L counter. Level 1 Level No If printing results get worse all the more you the more repeat you get worse all results printing If has run the ink cartridge that it is assumed cleaning, upset counter out and is the ink consumption ink the this In the ink cartridge. due to a mishandling user’s sequence replacement cartridge ink the enter case, with new one. a cartridge ink the installed and replace CAUTION EPSON Stylus Color 900 EPSON Color Stylus Maintenance Overview 163 6.1.1.1 Cleaning the Printhead the Cleaning 6.1.1.1 banding, color banding, such as white shows problems your printout If printhead the alignment), (bad ejection ink improper or missing, dot Stylus the with equipped methods cleaning The be cleaned. to needs 6-1. Figure in shown as are 900 Color Revision C Revision Reference Chapter 1 / Section / Section 1 Chapter 1.4 / Section 5 Chapter 5.2.8. Description 33300 Right pad: ,

• Reset wasteink counter. NOTE: the waste printers, other Unlike is operation reset counter ink IC to Timer nor I/F not common reset. selection • reset count ink Waste However, the adjustment program urges to set 25800 set to urges program adjustment the However, pad for as values a reference (right) and 23,300 (left) is deducted each from points (10,000 replacement. maximum value.) Be sure to replace the waste ink pads before or after or after the waste ink before pads Be sure to replace Otherwise, Error. Request Maintenance the clearing may ink overflow. your customer encounter each pad for value is as The maximum counter follows: pad: 35800 Left Options   Table 6-1. Solution for the Maintenance Request Error Request Maintenance the for Solution 6-1. Table Using the program panel 2 1 control the Using CAUTION No. EPSON Stylus Color 900 EPSON Color Stylus Maintenance Overview 164 6.1.1.2 Maintenance Request Error when ink waste the indicated is Error Request The Maintenance below The table near full. in case becomes the lower located absorber Maintenance the clear to necessary and procedures methods shows Error. Request into it.

Revision C Revision “O8” (0.5 cc) cc) “O8” (0.5 “O8” (0.7 cc to 0.75 0.75 to cc (0.7 “O8” : be sure to clean the shaft and perform and perform the shaft to clean the be sure to the installed oil pad. Make sure the oil to the installed

carriage guide shaft surface well to remove dirt dirt to well remove surface guide shaft carriage completely. carriage the on bushings metallic the of surfaces (To inserted. is shaft which the through unit pieces) iron remove well. shaft guide carriage the of surface whole carriage. the of back the at position cc) operation. this has been for removed printhead the use never Also, available. syringe diameter it. on needle a without syringe 1.the on oil the off wipe cloth, cotton a dry Using 2. inner the clean cloth, cotton dry the Using 3. pad Get a oil supply and new 5. new pad to the specified another oil Install 6. of amount specified Supply 4. the over lubricate pad, the of side oiled the Using use the smallest- oil control, precise NOTE:For When installing the carriage guide shaft after oiling oiling after guide shaft carriage the When installing pad, oil the preliminary lubrication before installing the shaft as the shaft installing before lubrication preliminary below described  CAUTION Be . Be sure to Be sure . replacing the current oil pad a oil with pad new current the replacing sure to remove the printhead unit and the carriage and the carriage unit to remove the printhead sure before unit pad. new the to oil supplying then and one head any necessary you need to perform Accordingly, 5.) Chapter to (Refer adjustment. related Never add oil to the currently used oil pad used oil to the currently oil add Never pad. new oil a to oil of amount specified supply which be absorbed, too much will oil Otherwise, damages the printhead. the so “O8” handling in attention special Pay it. is not with smeared printhead guide. shaft carriage to the directly oil apply Never    Oil has been wiped off during cleaning. during off has been wiped Oil disassembled/assembled. been has Printer has been replaced. the printer in part(s) Specific    CAUTION

EPSON Stylus Color 900 EPSON Color Stylus Maintenance and Adhesion Lubrication 165 6.2 Lubrication and Adhesion by are 900 specified Color Stylus used in the lubricants The types following under the necessary if printer the SEIKO EPSON. Lubricate conditions; For a specific feature of ink jet printers, an oil pad(s) must be lubricated lubricated be must pad(s) oil an printers, jet ink of feature specific a For below and perform instructions the Observe care. a special with amount, type, lubricants the specified following by strictly lubrication apply. to way the and Revision C Revision O il P a d Figure 6-4. Small Syringe Small 6-4. Figure M e ta llic b u s h in g s W ipe off black black W off ipe comstains pletely. Be sure to use a small-diameter syringe to minimize minimize to syringe small-diameter use a to Be sure you to see pushed allows Small syringe the tolerance. more clearly. amount (stroke) Figure 6-3. Locations for Oil Pad and Bushings and Pad Oil for Locations 6-3. Figure metallic bushings through which the carriage guide shaft is set. set. is shaft guide carriage the which through bushings metallic portion the clean Also, any. if stains black wipe off well Especially, cloth. the using attached pad was the where below only contains 2 cc maximally. only contains below CAUTION 5.2 the of surfaces inner the wipe completely cloth, dry the Using 6. shown syringe The small available. syringe Get a smallest-diameter D cloth ry C arriage Guide Shaft Guide C arriage Figure 6-2. Cleaning the Carriage Guide Shaft Cleaning Carriage 6-2. the Figure cloth.

EPSON Stylus Color 900 EPSON Color Stylus Maintenance and Adhesion Lubrication 166 4. unit. the carriage back the of pad) from Pad (a felt Oil Remove the 6.2.1 Lubricating6.2.1 the Carriage Guide Shaft guide the carriage for lubricating the procedure includes section This is guide shaft of the carriage lubrication the models, other Unlike shaft. the to observe sure be Therefore, under many restrictions. performed strictly by lubrication perform and section previous the in CAUTION specified. the steps following 1. to 4.2.7.1.) (Refer printhead. Remove the 2. to 4.2.7.10.) (Refer unit. carriage Remove the 3. a dry with surface the shaft’s by wiping shaft the carriage Clean Revision C Revision 0.7 - 0.75 cc 0.75 - 0.7 Figure 6-7. Supplying Oil to the Oil to the Oil Pad (2) Oil 6-7. Supplying Figure to the installed oil pad. oil installed to the main body. (See Chapter 4 / Section 4.2.7.10.) 4 / Section (See Chapter main body. Error. Out Cartridge Ink cartridges. new ink install and Sequence 5.2.7.) Section / 5 11. cc) 0.75 to (0.7 “O8” 8, supply Step in used same syringe the Using 12. printer the to then unit the carriage to shaft guide the carriage Install 13. 4.2.7.1.) 4 / Section (See Chapter the printhead. Install 14. 5.2.10.) 5 / Section Chapter (See Paper Perform Gap Adjustment. 15. the to cause installed cartridges the ink on without printer Turn the 16. Replacement the Ink Cartridge run button, the Load/Eject Using 17. Chapter (See Charge. Ink Initial perform program, service the Using 18. 5.2.4.) 5 / Section Chapter (See Adjustment. Head Angular Perform 19. 5.2.5.) Section 5 / Chapter (See Adjustment. Bi-Directional Perform to the oil pad. oil the to ) 0.5 cc 0.5 ( "O 8 "

y Suppl O il Pad already oiled w ith "O8" (0.5 cc) cc) (0.5 "O8" w ith oiled Pad already O il Figure 6-5. Supplying Oil to the Oil to the Oil Pad (1) Oil 6-5. Supplying Figure Figure 6-6. Preliminary Lubrication with with “O8” Lubrication 6-6. Preliminary Figure syringe. shaft surface thoroughly. surface shaft carriage. the

EPSON Stylus Color 900 EPSON Color Stylus Maintenance and Adhesion Lubrication 167 7. pads. new oil 2 Get 8. small the cc) using (0.5 “O8” pads, supply To one of the new oil 9. guide the carriage lubricate 8), pad (step of the side the oiled Using 10. back of at the position new specified to pad the other oil Install Revision C Revision Amount 1 x 10 mm) 10 x 1 mm) 10 x 1 1 x 2 mm) 1 x 2 mm) 1 x 2 mm) 1 x 2 mm) 1 x 2 mm) 1 x 3 mm) 1 x mm) 1 x 3 mm) 1 x 2 mm) φ φ φ φ φ φ φ φ φ φ φ 1mm x 1/3 of the circle) the of x 1/3 1mm circle) the of x 1/3 1mm circle) the of x 1/4 1mm φ φ φ G-26 ( G-26 ( G-26 ( G-26 ( G-26 ( G-26 ( cc) - 0.75 (0.7 O-8 G-26 ( G-26 ( ( G-26 ( G-26 ( Table 6-5. Lubrication Points Points Lubrication 6-5. Table Lubricating Point Lubricating

surface. Release,Cam] The shaft in the [Frame Assembly, DE, Right] Assembly, [Frame the in shaft The DE, Left] Assembly, [Frame the in shaft The Guide,Front] [Paper the on points 12 [Roller between areas; contact 2 [Grounding and Rear] Eject, Assembly,Paper Eject] Plate, [Gear,27]s left and right the of teeth The Pad] [Oil Carriage the “Lubricating 6.2.1 Section to Refer Shaft”. Guide Roller Assembly, [Lever the in shaft Roller Right] Release, Lifter] Arm [Shaft, the of end Narrow [Combination Gear,12, 26] Gear,12, [Combination Eject] Plate, [Grounding NOTE: roller to the lubricant apply not Do 1 3 5 7 9 225.8] [Gear, the of teeth The 4 The teeth ofthe smaller gear inthe 6 G-26 Eject]Plate,Paper [Grounding the in points 4 ( G-26 8 and Eject] Assembly, [Roller areas; contact 2 10 2points on the shaft inthe [Lever Assembly, 11 13 15 12 A hole in the [Frame Assembly,Middle, Left] G-26 ( 14 Pin on the [Frame, Middle, Right] G-26 ( No. Ref. figure Ref. Figure 6-8 Figure 6-10 Figure 6-12 Figure Figure 6-9 Figure 6-11 Figure 6-13 Figure Ref. figure Availability EPSON exclusive 1 x 1 mm 1 x 2 mm 1 x 1 mm 1 x 1 mm 1 x Amount 1 x 10 mm 1 1 x 150 mm φ φ φ φ Amount φ φ 0.7 - 0.75 cc- 0.75 0.7 6-14 Figure Part code 1019753 Content 40g 40g Lubricating Point Lubricating

Lubricating Point Lubricating

Part name Part O-8 Table 6-3. Lubrication Points G-26 Points Using 6-3. Lubrication Table Table 6-4. Lubrication Point the O-8 Point Using Lubrication Table 6-4. Table 6-2. Oil Applied to the Stylus Color 900 Color Stylus the to Applied Oil 6-2. Table

No adhesion is used in the Stylus Color Color 900. the used in Stylus No is adhesion Using a brush, lubricate the whole inner inner whole the lubricate brush, a Using of side right in the cutout round the of surface [Frame,ASF;B]. the Using a brush, lubricate right and left sides of of sides left and right lubricate brush, a Using C]. ASSY, [Hopper the (the part bearing the of surface the Lubricate at the located [Bushing,12] the of cut) round mechanism. printer the of end right CR]. Guide, [Frame, of the back the Lubricate Lubricate the inner gear of the [Combination [Combination of the gear inner the Lubricate 24]. gear,14.4, Apply oil to the [Oil Pad]. Pad]. [Oil to the oil Apply in CAUTION the observe lubricating, Before Section 6.2 well. Type 1 2 4 6 3 5 Driven]. the [Shaft, Pulley, Lubricate 1 No. No. Oil Grease G-26 40g B702600001 EPSON exclusive

EPSON Stylus Color 900 EPSON Color Stylus Maintenance and Adhesion Lubrication 168 NOTE: G-26

Revision C Revision G-26 [F ra m e , A S F ;B ] [Hopper Assem bly, C] Assem bly, [Hopper Figure 6-8 Figure Figure 6-9 Figure G-26 Amount 1 x 5 mm, top and and top mm, 5 1 x mm) 5 1 x mm) 5 1 x φ φ φ G-26 ( G-26 O-8 ( G-26 ( G-26 bottom) Lubricating Point Lubricating

CR, Support]. 15.2, Gear, [Combination of the in hole the with joins which 23.2] the [Pump Assembly]. Table 6-6. Lubrication Points (continued) Points 6-6. Lubrication Table U-shape groves on the right and left edges of edges left and right the on groves U-shape Unit]. Front Guide [Paper the 29.6, Gear, [Combination of the hole Shaft 29.6] NOTE: [Shaft, to the lubricant apply not Do Gear,15.2,23.2] [Combination and 29.6,29.6] Plate [Mounting the with contact in come Cap]. Assembly, NOTE: shaft the to lubricant apply not Do 16 18 19 Gear, [Combination the where areas The 17 CR] [Shaft, of the surface The No.

EPSON Stylus Color 900 EPSON Color Stylus Maintenance and Adhesion Lubrication 169 Revision C Revision Figure 6-12 Figure Oil Pad Oil O-8 C a rria g e G26 [S h a ft, P u lle y , D riv e n ] Figure 6-14 Figure G-26 G26 Figure 6-11 Figure B a c k o f th e [F ra m e , G u id e , C R ] Figure 6-13 Figure Back of the [Carriage] the Back of G-26 Figure 6-10 Figure

EPSON Stylus Color 900 EPSON Color Stylus Maintenance and Adhesion Lubrication 170 

APPENDIX Revision c Revision Refer to: Refer Chapter 1 / Interface / Interface 1 Chapter specifications Type-B I/F Manual I/F Type-B / Interface 1 Chapter specifications / Interface 1 Chapter specifications 7-3 Table 7-4 Table 7-6 Table 7-8 Table 7-10 Table 7-12 Table Function Type-B I/F connector I/F Type-B connector connector USB I/F line) (Power supply Power drive nozzle Cyan Magenta, Bk, drive PF motor drive ASF motor sink heat the on Thermistor drive ASF solenoid Table 7-1. Table 7-1. C265 Main Board Connections CN1 connector I/F Parallel CN2 CN4 CN6 CN8 CN3 connector I/F Serial Mac. CN5 line) (Logic supply Power CN7 ----CN9 7-2 Table drive nozzle Yellow 7-5 Table ---- CN10 CN12 CN14 CN16 CN11drive motor CR CN13 drive fan Cooling CN15PE, ASF) (HP, Sensors and Panel 7-11 Table 7-7 Table 7-9 Table Connector Table shows the connector assignment of the C265 Main Board. of the C265 Main assignment connector Table the shows HP Sensor HP C R M drive o to r d MASF otor riv e Fan drive C ooling sink heat on the Thermistor drive Solenoid ASF B k , M , C n oY z z e le d lo riv w e n o z z le d riv e P F M o to r d riv e Sensor ASF C ontrol Panel C ontrol PE Sensor

AC

CN8 CN9

CN10 CN11 CN12 CN13 CN14 CN16 CN15 CN4 USB I/F

CN1 CN3 M a c . S e ria I/F l

CN3 CN6

Power Power Line CN2

Type-B I/F Type-B CN1 P a ra lle I/F l C265MAIN Board) (Main Figure 7-1. Cable Connection of the Stylus Color 900 Color of the Stylus Cable Connection Figure 7-1. CN5 CN2 Logic Logic Line C265PSB/PSE Supply er (Pow Board)

EPSON Color 900 Stylus Appendix Summary Connector 172 7.1 Connector Summary 900. Color the Stylus of connection shows the cable 7-1 Figure Revision c Revision Function Row A temperature detection analog signal signal analog detection temperature A Row A Row Nozzle the for Ground Row A (black) Nozzle for the voltage Power B nozzles Row Nozzle the for Ground signal analog detection temperature (Magenta) D Row signal C Row Nozzle the for Ground Row D Nozzle for the voltage Power D Row Nozzle the for Ground Selector) Ground encoder linear the from B signal Phase I I I O O ------I/O Table 7-4. Connector Pin Assignment - CN8 - Assignment Pin Connector 7-4. Table Signal Name Signal ANODE2 GND2A COMb GND2B ANODE4 GND2C COMd GND2D GND LS2 1 ANODE1 Isignal analog detection temperature A Row 3 GND2A5 COMa --- A Row Nozzle the for Ground 7 GND2B O9 Row A (black) Nozzle for the voltage Power ANODE3 ---Row B nozzles Nozzle the for Ground I analog detection temperature (Cyan) C Row 2 4 6 8 11 GND2C13 COMc --- C Row Nozzle the for Ground 15 GND2D O17 C Row Nozzle for the voltage Power VHV --- D Row Nozzle the for Ground 19 TH O (Nozzle comparator 21 for the supply Power LS1 I printhead the on thermistor the from data Analog I encoder linear the from A signal Phase 10 12 14 16 18 20 Pin Function Function +42 voltage supply voltage +42 +5 voltage supply +5 voltage I I I/O I/O Name Signal Signal Name Signal Signal +42 V +42 5 V Table 7-2. Connector Pin Assignment Pin Assignment 7-2. - Connector CN5 Table Pin Assignment 7-3. - Connector CN6 Table Pin Pin 1, 65 4, 2, 3, GND --- Ground 4 PSC I Delay control at poweroff 2, 3, 5, 6 3, 2, 1, 71, GND ---- Ground

EPSON Color 900 Stylus Appendix Summary Connector 173 Revision c Revision Function Function When inputting, connects a current from the the from a current connects inputting, When coil. the via ground to the -A Phase data Input/Output B Phase the from a current connects inputting, When coil. the via ground to the -B Phase the from a current connects inputting, When coil. the via ground to the A Phase data Input/Output -B Phase the from a current connects inputting, When coil. the via ground to the B Phase When inputting, connects a current from the the from current a connects inputting, When coil. the via ground the -A to Phase Phase B Input/Output data B Input/Output Phase the from current a connects inputting, When coil. the via ground the -B to Phase the from current a connects inputting, When coil. the via ground the A to Phase data -B Input/Output Phase the from current a connects inputting, When coil. the via ground the B to Phase I/O I/O I/O I/O I/O I/OB Signal Name Signal Name Signal Table 7-7. Connector Pin Assignment - CN11 Pin Assignment 7-7. Connector Table PF B PF -B CR B CR -B 1 A PF I/O data A Input/Output Phase 2 4 3 -A PF I/O data -A Input/Output Phase 2 4 1 A CR I/Odata Input/Output A Phase 3 -A CR I/O data Input/Output -A Phase Pin Pin Function Ground for the Nozzle Row E Row Nozzle for the Ground signal analog detection E temperature Row (black) Ground (black) Ground Ground row Ground Ground transmission signal Ground completion transfer Ground data) without (High signal detection In/Out cartridge ink Black I I ------I/O Table 7-5. Connector Pin Assignment Pin Assignment - 7-5. CN9 Connector Table - CN10 Pin Assignment 7-6. Connector Table Signal Name Signal GND2E ANODE5 GND GND GND GND GND GND GND COB 1 COMe O(Yellow) Row E Nozzle the for voltage Power 2 4 6 8 3 GND2E5 B2 ---Row E for Nozzle the Ground 7 B1 O9 Row B the to signal selection dot Outputs C O Row A the to signal selection dot Outputs O row Cyan the to signal selection dot Outputs 11 M13 Y15 O Magenta the to signal selection dot Outputs CLK17 Orow Yellow the to signal selection dot Outputs LAT O selection for dot signal clock Synchronization 19 INV O signal selection dot a of to inform signal Latch 21 COC O data print the of signal Inversion I signal detection In/Out cartridge ink Color 10 12 14 16 18 20 Pin

EPSON Color 900 Stylus Appendix Summary Connector 174 Revision c Revision Function Function excitation (42V) Ground Ground condenser electrolysis the to voltage Charging control delay for the SW condition Cleaning Detects drive LED out perfect or Empty Near ink Color signal drive LED out perfect or Empty Near Ink Black signal sensor LED/PE the for supply Power signal detection condition ASF sensor signal detection condition sensor HP drive HP sensor the for supply Power I I I O O O O O ------I/O I/O Signal Name Signal Name Signal GND PSC SW2 LED1 LED3 +5V ASF HP HPVCC GND Table 7-11. Connector Pin Assignment - CN15 - Assignment Pin Connector 7-11. Table CN16 - Assignment Pin Connector 7-12. Table 2 4 6 8 3 SW05 SW1 I7 condition. SW power the Detects LED0 I9 condition SW Load/Eject the Detects O LED2 signal drive LED Power Osignal drive LED Out Error Paper 1 GND --- Ground 1 VBB O solenoid the for voltage supply Power 2 10 12 14 16 18 11 +5V13 GND15 O sensor LED/PE the for supply Power PE ---17 Ground PEVCC I O signal detection condition PE sensor drive PE sensor the for supply Power Pin Pin Function Function Function the heat sink surface on the main board. main the on surface sink heat the Ground When inputting, connects a current from the the from a current connects inputting, When coil. the via ground to the -A Phase data Input/Output B Phase the from a current connects inputting, When coil. the via ground to the -B Phase the from a current connects inputting, When coil. the via ground to the A Phase data Input/Output -B Phase the from a current connects inputting, When coil. the via ground to the B Phase Ground ------I/O I/O I/O I/O I/O Signal Name Signal Name Signal Name Signal Table 7-8. Connector - CN12 Pin Assignment Table 7-8. Connector ASF B ASF -B - CN13 Pin Assignment Table 7-9. Connector GND THM2 Table 7-10. Connector Pin Assignment - CN14 - Assignment Pin Connector 7-10. Table 1A ASF I/Odata Input/Output A Phase 3-A ASF I/Odata Input/Output -A Phase 1 +35V O Powersupply for drivingthe fan 2 4 2 1 THM1 I of detection temperature for the signal Analog 2 Pin Pin Pin

EPSON Color 900 Stylus Appendix Summary Connector 175 − − − − − Factory Factory settings

Revision c Revision 00H (*1) 00H 00H 00H 00H 00H 00H (*2) 00H00H (*1) 00H (*1) (*1) 00H (*1) QPIT settings Settings 0: disable 1: enable 0: disable 1: enable 0: Auto 1: Parallel 2: Serial 3: USB 4: Option -36 <= n <= +36 inch) 1/1440 (by -36 <= n <= +36 inch) 1/1440 (by -36 <= n <= +36 inch) 1/1440 (by (by 1/1440 inch) 1/1440 (by Explanation Table 7-14. Table EEPROM7-14. Address Map (2/8) data CPSI password 00H 00H (for Normal x3) (for Normal (for Variable-2) (for Variable-1) 24H flag license CPSI 25H license font CPSI 26H selection Interface 15H data Bi-D Adjustment 16H data Bi-D Adjustment 17H data Bi-D Adjustment 18H Uni-DAdjustment data -36 <= n <= +36 19H reserved 00H 1FH ERROR Code 00H 00H 1AH1BH reserved 1st dot position adjustment 1EH reserved 00H 00H 1CH reserved 00H 1DH reserved 00H Address 20H, 21H, 22H, 23H

*1, *2: See NOTE at the end of the section. the of end the at NOTE *2: See *1, − − − − − − − Factory Factory settings 00H (*1) 00H (*1) QPIT settings (World) Settings 0: Standard 1: Custom 0: STD 1: NLSP Explanation Table 7-13. 7-13. EEPROMTable Address Map (1/8) Custom EEPROM sub numbersub EEPROM Custom 00H 00H 05H ID Market 10H11H for Head-ID reserved 12H for MicroWeave-ID reserved 13H lwC for ID rank actuator Head 14H IwM for ID rank actuator Head reserved 00H 00H 00H 00H (*1) (*1) (*1) (*1) 00H 01H02H03H revision EEPROM mapping 04H reserved CG 41H 5AH 00H 00H Password 0 0FH 0FH VhM for ID rank actuator Head 00H (*1) 0AH0BH VhN for ID rank actuator Head reserved 00H (*1) 00H 0EH VhU for ID rank actuator Head 00H (*1) 0CH0DH reserved VhL for ID rank actuator Head 00H (*1) 00H Address EPSON Color 900 Stylus

06H, 07H, 08H, 09H Appendix EEPROM ADDRESS MAP 176

7.2 EEPROM ADDRESS MAP 900. Color Stylus the map for EEPROM the contains section This at the end of section. See NOTE *1: Factory Factory settings

Revision c Revision 00H 02H 00H 00H 02H 02H 08H 08H QPIT settings 1: Serif Sans 3: Prestige 10: Roman T 7: Draft 1: 12cpi 3: 17cpi 5: Proportional 1: Italic France Italic 1: U.K Italic 3: Sweden Italic 5: Spain Italic 7: 9: PC 437Greek 860 PC 11: 865 PC 13: 15: BRASClI 17: Roman 8 853 PC 19: 852 PC 21: 866 PC 23: MAZOWIA 25: 8859-7 ISO 27: Bulgaria 29: Estonia 31: LAT 866 PC 33: AR864 PC 35: 708 PC 37: 39: Hebrew7 862 PC 41: 8859-15 ISO 43: Settings 0: Roman 2: Courier 4: Script 11:H Serif Sans 0: 10cpi 2: 15cpi 4: 20cpi 0: Bi-D 1: Uni-D 2: Auto U.S.A Italic 0: Germany 2: Italic Denmark Italic 4: Italy Italic 6: 8: PC 437 850 PC 10: 863 PC 12: 861 PC 14: 16: Abicomp Latin1 lSO 18: 855 PC 20: 857 PC 22: 869 PC 24: MJK Code 26: 1T Latin lSO 28: 774 PC 30: 8859-2 ISO 32: 866UKR PC 34: PC APTEC 36: 720 PC 38: Hebrew8 40: 858 PC 42: Table 7-16. Table EEPROM7-16. Address Map (4/8) on Explanati direction direction control 30H Font 31H Pitch 32H Print 33H CG table Address − Factory Factory settings 00H 01H 00H 00H 00H00H 00H 00H 00H 00H 0AH 0AH QPIT settings Settings (0=Off, 1=On) (*B) 1=On) (0=Off, (*C) 1=Off) (0=On, 0: Auto 1: On 2: Off (by second, value of 0 of value second, (by seconds) 10 means 0: Fast 1: Slow 2: Special-1 3: Special-2 0: Fast 1: Slow 0: Auto 1: On 2: Off bit0: lEEE1284 mode lEEE1284 bit0: Explanation Table 7-15. 7-15. EEPROMTable Address Map (3/8) reserved for USBreserved 00H Parallel 29H (*A) speed ECP 27Htime-out Interface 255 0 to 28H speed Compatibility 600KB/s) Max. Slow: 2AH for IEEE1284.4 2BH flags I/F Control ECP mode bit1: 2CH USB for IEEE1284.4 Address EPSON Color 900 Stylus

2DH, 2EH, 2EH, 2DH, 2FH Appendix EEPROM ADDRESS MAP 177 *A: 1MB/s, Max. (Fast: of a -STB signal. from fall-edge time delay signal BUSY *B: Nibble) (ECP pr mode. transfer IEEE1284 Selects *C: signal.) -SLN ignore disabled, (When transfer. reverse or disables Enables at the end of section. See NOTE *2: − − Factory Factory settings

Revision c Revision 00H 10H 00H 00H QPIT settings Settings bit6: black one-time black bit6: one-time color bit5: required fill Initial bit4: Reserved bit3: seq. cleaning ink bit2: required CL black bit1: required CL color bit0: cleaned and cartridge Black bit1: cleaned and changed cartridge Black bit0: cleaned and changed Explanation Ink counter Cb counter Ink Cy counter Ink Cm counter Ink Cc counter Ink Clm counter Ink Clc counter Ink 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 41H42H1 flag Ink Reserved bit7: 5AH 43H flag2 Ink changed cartridge YMC bit2: 40H 1 Password 0FH Address 44H, 45H, 46H, 47H 48H, 49H, 4AH, 4BH 4DH, 4CH, 4EH, 4FH 50H, 51H, 52H, 53H 54H, 55H, 56H, 57H 58H, 59H, 5AH, 5BH 5DH5CH, Rb0 counter Ink 00H 00H − − − − Factory Factory settings 00H 00H 00H 00H 00H 00H 1EH 1EH 1EH 1EH QPIT settings Settings (0=ESC/P, 1=IBM) (0=ESC/P, 1=On) (0=Off, 1=On) (0=Off, 1=On) (0=Off, bit7: Software bit7: 1=On) (0=Off, A.G.M. bit6: 1=On) CR (0=Off, Auto bit5: bit4: Zero slash Reserved bit3: Reserved bit2: mode I/F Network bit1: feed line Auto bit0: Self-Test Entry bit7: Hex-Dump Entry bit6: settings Extended bit5: Reserved bit4: Reserved bit3: Cleaning bit2: l/C Replace bit1: Load/Elect bit0: (by1/360 inch) (by 1/360 inch) 1/360 (by (by 1/360 inch) 1/360 (by Table 7-17. 7-17. EEPROMTable Address Map (5/8) Table EEPROM7-18. Address Map (6/8) Explanation A.G.M. CR Auto Slash Zero - - mode I/F Network LF Auto function 34H Software 35H mask Panel 36H Top margin 42to 44 x 360 37H38H margin Bottom 360 x 44 to 1244 78H 78H 39H F0H F0H 3FHmain for reserved 00H 3BH F0H F0H 3EHmain for reserved 00H 3AH length Page 360 x 44 to 1244 3CHmain for reserved 00H 3DHmain for reserved 00H

EPSON Color 900 Stylus Address Appendix EEPROM ADDRESS MAP 178 − − − − − − Factory Factory settings

Revision c Revision 00H 00H 00H 00H 00H 00H QPIT settings Settings Explanation Table 7-20. Table EEPROM7-20. Address Map (8/8) adjustment (refer to (refer adjustment EEPROM 17H) adjustment (refer to (refer adjustment EEPROM 16H) Total count of Paper Paper of count Total through CR of count Total seek reserved 00H 87H Bi-D at Temperature 88H89H reserved reserved 00H 00H 86H Bi-D at Temperature 8AH8BH TG-ID Head reserved SEC 1: Sharp 0: 00H (*1) 00H Address 8CH, 8DH, 8CH, 8EH, 8FH 90H, 91H Ink counter Rb8092H, 93H Ink counter Ry80 95H94H, A80 counter Ink 96H, 97H, 98H, 99H 9BH, 9AH, 9DH, 9CH, 9EH, 9FH 00H 00H 00H 00H 00H 00H

NOTE: *1:factory. at Adjusted *2:performed. is initialization panel after Initialized *3: performed. is EEPROM in counter overflow ink of the initialization after Initialized − − − Factory Factory settings 00H00H 00H 00H 00H 00H 00H QPIT settings Settings Explanation Table 7-19. 7-19. EEPROMTable Address Map (7/8) time system adjustment (refer to to (refer adjustment EEPROM 15H) Printer-ID Strings[22]Printer-ID 00H 00H temperature 83H84H P285H P1 Bi-D at Temperature 00H 00H 00H 00H 80H81H 2 Password 82H Head by end Ink 0FH 5AH Address 5EH, 5FH5EH, Ry0 counter Ink 61H60H, A0 counter Ink 63H62H, time off Power 65H64H, CL time66H, 67H accumulatedprinting 68H, 69H reserved forink- 00H 00H 00H 00H(*3) 00H (*2) 00H 00H (*2) 00H EPSON Color 900 Stylus 6BH, 6AH, 6DH, 6CH, 6EH, 6FH, 70H, 71H, 72H, 73H, 74H, 75H, 76H, 77H, 78H, 79H, 7BH, 7AH, 7DH, 7CH, 7EH, 7FH Appendix EEPROM ADDRESS MAP 179 *2, *3: See NOTE at the end of the section. the of end the at NOTE *3: See *2, Revision c Revision Figure 7-2. C265 Main Board (Component side) (Component Board Main C265 7-2. Figure

EPSON Color 900 Stylus Appendix Layout Component 180 7.3 Component Layout Revision c Revision Figure 7-3. C265 Main Board (Soldering side) 7-3. C265 Main Board (Soldering Figure

EPSON Color 900 Stylus Appendix Layout Component 181 Revision c Revision Figure 7-5. 7-5. C265 PSE Figure Board Figure 7-4. 7-4. C265 PSB Board Figure

EPSON Color 900 Stylus Appendix Layout Component 182 Revision c Revision Figure 7-6. C265 PNL Board PNL C265 7-6. Figure

EPSON Color 900 Stylus Appendix Layout Component 183 Revision c Revision Description BOARD ASSY., PANEL MECHANISM(ASP)M4P10-100 UPPER FRAME, ASSY., LEFT FRAME GUIDE, CR FRAME, 64.7 SPRING, TORSION DRIVEN PULLEY, HOLDER, SHAFT, PULLEY, DRIVEN COMPRESSION SPRING, 48 PF MOTOR ASSY., LOWER LINEAR SCALE PAPER GUIDE, UPPER No. 514 ASSY. INK SYSTEM 450 501 503 505 507 509 511 513 515 517 519 Table 7-22. Parts List (2/6) List Parts 7-22. Table Description CLAMP C.B.S. SCREW SCREW C.B.S-TITE F/ZN 3X8, SCREW, C.B.P-TITE F/ZN 4X14, C.B.SCREW, F/ZN 4X12, SCREW, C.P.P-TITE CAUTION 1 LABEL, BOARD ASSY., MAIN SUPPLY WIRE HARNESS WIRE HARNESS WIRE HARNESS No. 140PLATE SHIELD GUIDE, 145 C.P.SCREW 410ASSY. POWER CABLE 147 SCREW C.B.S. 149 SCREW C.B.S-TITE 500 PRINTER 151 F/ZN 3X10, C.B.P-TITE, 502 LOWER FRAME, 154 504 F/ZN3X6, SCREW, C.B.P-TITE RIGHT FRAME, 506 508PG 156 LEVER, BELT TIMING 4X8 F/ZG SCREW C.B.(O) 181 510 ACCESSORY LABEL, DRIVEN PULLEY, 300 BOARD ASSY., POWER 512 DRIVEN BUSHING, PULLEY, 331 WIRE HARNESS333 WIRE HARNESS335 516 FAN ASSY. GROUNDING FRAME, PLATE, 518 PAPER GUIDE, RIGHT 520 PAPER GUIDE, LEFT 142 146 148 150 152 155 180 200 330 332 334 Description COMPRESSION SPRING, 2.94 COMPRESSION SPRING, RIGHT SHIELD PLATE, MAIN, UPPER, LEFT GROUNDING I/F PLATE, SHIELD PLATE, MAIN, UPPER, I/ F SHIELD PLATE, P/S, UPPER SHIELD PLATE, P/S, UPPER, RIGHT P/S FOOT, FAN FRAME, GUIDE, SHIELD PLATE, MAIN, LOWER No. 137 PLATE, I/F SHIELD 120 122 124 126 130 132 134 136 138 Table 7-21. Parts List List (1/6) 7-21. Parts Table Description EJECT HOUSING, LOWER HOUSING, PAPER SUPPORT ASSY COVER, CONNECTOR, UPPER RIGHT PANEL, HOUSING, OPTICAL PLATE PANEL PROTECT, SHEET, L INK EJECT, POROUS PAD, LOGO PLATE INK SPACER, POROUS PAD, EJECT No. 102 COVER, PRINTER104 REAR HOUSING, 121 UPPER, MAIN, SHIELD PLATE, 106 STACKER ASSY.108 123 UPPER I/F, GROUNDING PLATE, KEY TOP110 125 PLATE OPTICAL SLEEVE, BOARD GUIDE, I/F 131112 P/S GROUNDING PLATE, LEFT PANEL, HOUSING, 129114 SHIELD PLATE, P/S, LOWER 133R INK EJECT, POROUS PAD, PLATE SPACER, SHIELD 135116 FAN MOUNTING PLATE, PAD, INK COVER, POROUS 118 FOOT 139 GROUNDING M/B PLATE, 100 UPPER HOUSING, 119 LOCK, STACKER

EPSON Color 900 Stylus 101 103 105 107 109 111 113 115 117 Appendix List Parts 184 7.4 Parts List Revision c Revision Description STAR WHEEL ASSY, 8;D ASSY, STAR WHEEL LEFT FFC, HOLDER, CABLE, HEAD, LONG BUSHING, 6 LEFT 12, BUSHING, PF ROLLER, SPACER, FASTEN, PF;B 81 22, COMBINATION GEAR, PIN-AW, SCALLOP SPRING F/B 2X16, ASF MOTOR ASSY., LEVER, TRIGGER SHAFT, DE, PLANET No. 610 EXTENTION SPRING, 0.21 590 592 594 596 599 601 603 605 607 609 611 Description LEVER, DETECTOR, IC, C DETECTOR, LEVER, IC DETECTOR, COVER, CR MOTOR, INSULATOR, CR MOTOR, FRAME, CR FFC, HOLDER, PAPER GUIDE, REAR PAPER GUIDE, FRONT PAPER EJECT FRAME, FRONT STARWHEEL, HOLDER, LEFT STAR WHEEL, HOLDER, ASP RIGHT, STAR WHEEL, ASSY., HOLDER ASP LEFT, No. 566 IC, BKDETECTOR, LEVER, 568 589 2.04 SPRING, TORSION STAR WHEEL SPRING, ROD 570 CR MOTOR ASSY., 591 CENTER FFC, HOLDER, 572 SPACER, INSULATOR574 593 HEXAGON NUT SHORTHEAD, CABLE, 595577 SPUR GEAR, 16.5 SPUR GEAR, 18579 PF ROLLER, 597 BUSHING, 12 581 600 EJECT PAPER ROLLER, COMPRESSION SPRING, 5.85 583 604 602 CLOTH STATIC ANTI C-RING ROLLER, SPACER, FASTEN, 585 RIGHT STAR WHEEL, HOLDER, 608 606 SOLENOID 587DE SUB ASSY., FRAME STAR WHEEL, ASSY., HOLDER 567 569 571 573 575 578 580 582 584 586 588 Description SHAFT, CR, GUIDE SHAFT, OIL PAD COVER, CARTRIDGE, C BLACK CARTRIDGE, LEVER LABEL, COLOR CARTRIDGE, C LIFTER, IC HARNESS, DETECTOR, CARRIAGE ASSY. LEVER, HEAD, ADJUST BOARD ASSY., ENCODER CLEANER SLIDE, PLATE, 98 SPRING, TORSION No. 550CARTRIDGE, LEVER LABEL, 554 I/C DETECTOR, 545 547 549 551 553 555 557 559 561 563 565 Table 7-23. Parts List (3/6)List Parts 7-23. Table (4/6) List Parts 7-24. Table Description RIGHT UPPER TORSION SPRING, 117.6 SPRING, TORSION ROLLER, DRIVEN;E 2.13 SPRING, EXTENTION ADJUST, BUSHING, PARALLEL, LEFT BOARD ASSY., SUB PAPER ASSY., FRAME SUPPORT PE HOLDER, DETECTOR, 0.22 SPRING, TORSION HARNESS, PE HARNESS, HP SHEET, COVER, M/B No. 523 ROLLER, DRIVEN SHAFT, 525 546 SCALE HOLDER, LINEAR SUB PG, LEVER, 527 ADJUST, BUSHING, PARALLEL, 548 COVER, CARTRIDGE, BK 529 RIGHT HOLDER, FFC, 531 SUUPPORT, PAPER SUPPORT, 552 CARTRIDGE, BK LIFTER, 533 EXTENSION SPRING, 0.29535 556DETECTOR, PE LEVER, ENCODER HARNESS, 537 PE CIRCUIT ASSY, 558 HEAD GROUNDING PLATE, 539 DETECTOR, HP541 560 NYLON CLIPHEAD, FASTEN LEVER, 562 HOLDER, BOARD, ENCORDER 564 CR SLIDER, 521 PAPER GUIDE, UPPER SHAFT, 543 ASP HEAD, CLEANER,

EPSON Color 900 Stylus 522 524 526 528 530 532 534 536 538 540 542 Appendix List Parts 185 Revision c Revision Description AMERICA PAD PRINTER PAD, STACKER 510X870X0.05T No. 3 5 Description LEAF SPRING CORECLAMP, FERRITE ASP ASF UNIT, No. 676 LEAF SPRING678 S.W. U-TYPE 700IJ480-0A0 PRINT HEAD, 1 INDIVIDUAL CARTON BOX FOR 6 4 BAG, PROTECTIVE RLASTIC PAD, ACCESSORY 677 679 800 Description ROLLER ASSY, LD, LEFT LD, ASSY, ROLLER LD, LEFT COVER, ROLLER, COMPRESSION SPRING, 1.961 LEFT PAPER LOADING ASSY., HARNESS, ASF F/ZN 4X12, SCREW, C.P.P-TITE C.B.S. SCREW RING RETAINING F/NI 6.1X0.5X12, PLAIN WASHER PLANE WASHER No. 658 SPUR GEAR, 27.2 638 640 642 644 659 664 666 668 670 672 674 Table 7-25. Parts List (5/6)List Parts 7-25. Table (6/6) List Parts 7-26. Table Description EDGEGUIDE;B COMBINATION GEAR, 14.4, 24 14.4, GEAR, COMBINATION 12.8, GEAR, COMBINATION 27.2 SPUR GEAR, 26.25 DETECT WHEEL, EXTENSION SPRING, 0.088 LEVER, HOPPER, RELEASE PLATE, REINFORCEMENT HOPPER EDGEGUIDESLIDER, GUIDE EDGE PAD, BREAK, CORK;B F/ZN 3X6, C.P.S-TITE(P4), No. 614 20.8 GEAR, SPUR 616 38.4 20, GEAR, COMBINATION 641 639620 RIGHT LD, ROLLER, COVER, RIGHT LD, ASSY, ROLLER ASF FRAME, 622 LEVER, FASTEN, 624 ROLLER, LD SHAFT, 643 RIGHT PAPER LOADING ASSY., 663 F/ZN 3X8, C.B.P-TITE(P4), 628 EDGEGUIDE630 COMPRESSION SPRING, 3.23 669632 RING RETAINING CORK 667634 F/ZN 2.5X5, C.B.P-TITE, CR MOUNT, SHAFT, 636 SHEET, PAPERFEED 673 12.2X0.5X15 WASHER, PLANE 671 675 RING RETAINING LEAF SPRING 612CHANGE LEVER, 637 PAPERFEED HOLDER, SHEET,

EPSON Color 900 Stylus 613 615 617 621 623 625 626 HOPPER627 629 631 665 F/ZN 3X6, SCREW, C.B.P-TITE 633 635 Appendix List Parts 186 Revision c Revision

EPSON Color 900 Stylus Appendix Diagrams Exploded 187 7.5 Exploded Diagrams diagrams. Exploded pages for the following See the 152 147 149 152 145 103 102 105

145

EAI Only 103 500 104 147 150 151 115 116 117 150 155 A 181 120 for EAI,LATIN 182 for LATIN 119 100 150 150 180 112

110 113 147 151 109 150 111 114 151 450 142

108 155 142 142 154 A 107 140

154 106 411 for ETT

101 410 for USA 400 156 412 for EUR.,ASIA, 118 OSEANIA 118 EPSON STYLUS COLOR 900 No.1 Rev.01 10056 145 145 333 C B 145 332 E 131 D

133 K B 146 334 F G 530 H 145 I 126 C 145 130 146 123 122 146 330 145 125 147 124 331 200 541 H K I V 146 F G 146 146 136 L 121

132 146

300 145

145 J 137 145

138 146 148 134 154 145 145 154 148 146

V 139 335 135 L 145 146 129 EPSON STYLUS COLOR 900 No.2 Rev.01 10056 668 668 O 516 668 503

516 502

M 507 506

668 668

E O

504 505 515

543 668

668 501 668 510 514 511 512 668 668 668 508 N

P N

509 513 EPSON STYLUS COLOR 900 No.3 Rev.01 10056 533 550 670 538 551 635 537 527 532 534

531 535 D 548 536 526 570 549 525 571 572 552 573 (501) 574 P 553 571 572 520 700 668 574 668 517 542 668 540 R Q 519 539 668 663 558 521 522 635 519 524 676 575 560 523 528 T 519 674 554 521 671 522 564 521 522 524 518 523 519 529 524 667 523 521 522 521 562 522 524 523 569 546 524 519 565 523 561 559 S 568 Q 521 522 566 545 524 557 R 556 523

547 567 563 S 568 555 667

T EPSON STYLUS COLOR 900 No.4 Rev.01 10056 603 605 601 602 599 673 673 665 600 673 (503) 604 669 579

577 595 670 672 580 596 597 678 672 670

592 581

668

615 608 614 582 668 594 675 593 669 677 590 588 688 589 611 586 584 590 613 590 589 679 590 589 (504) U 606 589 612 589 590 584 596 589 590 584 664 589 590 668 589 590 585 583 U 609 589 590 668 589 616 590 610 589 590 589 590 668 591 589 590 589 669 589 590 590 587 589 590 617 607 668 EPSON STYLUS COLOR 900 No.5 Rev.01 10056 628 629 627 800

630 626 634 631

632 659 634

539 620 621 633 635 623 622 625 644 671 666 624 622 M 623 642 625

658 636 669 637 671 636

643 638 637 640

641

639

EPSON STYLUS COLOR 900 No.6 Rev.01 10056 04

03

03

05

06

03

02 for S.E.ASIA

01

03

EPSON STYLUS COLOR 900 No.7 10056 Rev.01 Revision c Revision C265 Main Board (1/2) Board Main C265 (2/2) Board Main C265 C265 PSB Board C265 PSE Board C265 PNL Board     

EPSON Color 900 Stylus Appendix Diagrams Circuit 195 7.6 Circuit Diagrams below. diagrams circuit pages for the following See the