OMNi 800 electronic data terminals MAINTENANCE MANUAL FOR MODEL 810 PRINTER MANUAL NO. 994386-9701 Rev. B Revised 1 June 1978 TEXAS INSTRUMENTS INCORPORATED Copyright 1978 by Texas Instruments Incorporated All Rights Reserved - Printed In USA The information and/or drawings set forth in this document and all rights in and to inventions disclosed herein and patents which might be granted thereon disclosing or employing the materials, methods, techniques or apparatus described herein are the exclusive property of Texas Instruments incorporated. No copies of the information or drawings shall be made without the prior consent of Texas Instruments Incorporated. r----------------------.. INSERT LATEST CHANGED PAGES. DESTROY SUPERSEDED PAGES LIS T 0 F E F F E CT I V EPA G E S INote: The portIon of the text affected by the changes is indicated by a vertical bar In the outer margins of the page. Maintenance Manual for Model 810 Printer Manual No. 994386-9701 Original Issue: 15 July 1977 Revision A: 15 March 1978 ECN 432918 T otdl nurnher of pages In this publication is 342 consisting of the following: Page Change Page Change Page Change No. No. No. No. No. No. Cover 0 A-I-A-8 0 A 0 B-I-B-2 0 iii-xii 0 C-I-C-6 0 1-1-1-4 0 D-I-D-22 0 2-1--2-8 0 E-I-E-18 0 3-1-3-2 0 F-I-F-27 0 4-1-4-54 0 Index -1-Index·8 0 5-1-5-25 0 User Response Sheet 0 6-1-6-134 0 Business Reply 0 7-1-7-37 0 Cover Blank 0 Cover 0 CHANGE NOTICES I Revision ECN Date Description Letter Number Level A 3/15/78 432918 D Update drawings, add preventive maintenance information B 6/1/78 432332 D Correct errors; add Line Buffer Option Drawings and Installation Instructions. A PREFACE This manual provides operation, installation, 'and maintenance information for the Model81 0 Printer manufactured by Texas Instruments Incorporated. The manual is organized into the following sections: Section I - describes the standard features of the Model 810 and lists specifications and available options and accessories. Section II - presents installation instructions, including unpacking, interface cabling, and initial preparation and testing. Section III - provides descriptions of the control panels and indicators, operating instructions, self­ help procedures, interface information, and software commands. Section IV - explains principles and theory of operation of the mechanism and electronics. Section V - describes maintenance, including troubleshooting, assembly removal and replacement, and preventive maintenance. Section VI - contains assembly drawings and associated parts lists. Section VII - presents logic diagrams and electrical schematics. iii Various options available for the Model 810 Printer are identified throughout this manual by a three­ letter configuration code. The options installed in your printer can be determined from the configuration label on the underside of the access door. We suggest you copy this information onto the figure for ready reference to the user of this manual. The code is defined in the table below. CONFIGURATION INTERFACE CHARACTER PRINTER OPTION SET BSC __ EIA FUL __ UKF __ FLC __ TTY ___ UKL __ DNF __ VFC __ PLT DNL __ SWF __ FCO __ LBE SWL __ GRF __ VCO __ BRO __ GRL __ KAT __ DSC __ EXP __ KTS __ PROCESSOR I RC ___ OPTIONS DNB __ NDE __ GDS __ NOTES: DNB __ GED __ IRC __ LBP LB __ DSC __ BRO __ GDS __ LBT HDP __ BRO __ DSC __ GDS __ DEFINITIONS OF PRINTER CONFIGURATION CODE BRa - Baud Rate Option KAT - Katakana & Full US ASCII BSC - Basic KTS Katakana plus Six Special Characters, Full DNB - Data Terminal Not Busy US ASCII DNF - Denmark/Norway Full ASCII LB Line Buffer DNL - Denmark/Norway Limited ASCII LBE Line Buffer bd, EIA IfF DSC Decode Carriage Return LBP Line Buffer bd, Par l/F EIA Serial Data LBT Line Buffer bd, TTY I/F EXP Expanded Domestic U.S. NDE - Non-Delete Recognition FCO Forms Length & Compressed Print PLT Par Input TI-compatible FLC Forms Length Control SWF Sweden/Finland Full ASCII FUL Full ASCII Domestic U.S. SWL Sweden/Finland Ltd. ASCII GDS Gated Data Strobe TTY 20 rnA Current Loop GED - Gated EIA Data UKF - United Kingdom Full ASCII GRF - Germany Full ASCII UKL - United Kingdom Ltd. ASCII GRL - Germany Limited ASCII VCO - Vertical Format Control and HDP Half Duplex Operation Compressed Print IRC - Inverted/Reverse Channel VFC - Vertical Format Control iv TABLE OF CONTENTS Paragraph Title Page SECTION I. GENERAL DESCRIPTION 1.1 Introduction . .. 1-1 1.2 Description ............................................ 1-3 1.3 Configuration .... '. .. 1-3 1.4 Modification Features ..................................... 1-3 1.5 Optional Features ........................................ 1-4 1.6 Accessories. .. 1-4 SECTION II. INSTALLATION 2.1 Introduction ............................................ 2-1 2.2 Space Requirements ...................................... 2-1 2.3 Unpacking and Setting Up .................................. 2-1 2.4 Cabling and Grounding Information ............................ 2-2 2.4.1 Serial Interface Cable .................................... 2-3 2.4.2 Parallel Interface Cable ................................... 2-5 2.4.3 TTY Interface Cable ..................................... 2-5 2.5 Initial Preparation ........................................ 2-6 2.5.1 Line Voltage Selection ................................... 2-6 2.5.2 Supplies Installation .................................. 2-7/2-8 2.5.3 Operational Checkout ................................. 2-7/2-8 SECTION III. OPERATION AND INTERFACE INFORMATION 3.1 Introduction ............................................ 3-1 3.2 Control Panel Controls and Indicators .......................... 3-2 3.2.1 Paper Out Indicator .............................. '....... 3-2 3.2.2 Error Indicator ........................................ 3-2 3.2.3 On Line Switch and Indicator ............................... 3-2 3.2.4 Reset/Tab Switch ...................................... 3-3 3.2.5 Form Align ./Tab Set Switch ............................. 3-3 3.2.6 Form Align'" /Tab Clear Switch ........................... 3-3 3.2.7 Form Feed/Set ,Top of Form Switch .......................... 3-3 3.2.8 Line Feed/ Line Feed Switch ............................... 3-3 3.2.9 Power Indicator . .. 3-3 3.3 Auxiliary Control Panel Controls and Indicators ..................... 3-3 3.3.1 Normal/Test/YFC Switch (BSC,FLC,VFC,FCO,YCO) .............. 3-5 3.3.2 Pencil Switches (BSC,FLC,YFC,FCO,YCO) ..................... 3-5 3.3.3 8 LPI Switch and Indicator (BSC,FLC,VFC) ..................... 3-5 3.3.4 Form Length Rotary Switch (FLC,FCO) ....................... 3-5 v TABLE OF CONTENTS (Continued) Paragraph Title Page· 3.3.5 VFC Switch (VFC,VCO) .................................. 3-5 3.3.6 Store/Recall Switch (VFC,VCO) .............................. 3-5 3.3.7 16.5 CPI/8 LPI Switch and Indicators (FCO,VCO) ................ 3-5 3.3.8 Elapsed Time Indicator (Optional) ............................ 3-6 3.4 Operating Procedures . ~ . .. 3-6 3.4.1 Ribbon Installation (All Printers) ............................ 3-6 3.4.2 Paper Loading (All Printers) ............................... 3-7 3.4.3 Turn-On Procedure ( All Printers) ............................ 3-9 3.4.4 Top of Form Adjustment (All Printers) ....................... 3-10 3.4.5 Printhead Adjustment (All Printers) .......................... 3-11 3.4.6 Self-Test Diagnostic (All Printers) ............. 0 • • • • • • • • • • • •• 3-12 3.4.7 Lines Per Inch Spacing (All Printers) ......................... 3-12 3.4.8 Characters Per Inch Spacing (FCO, VCO) ..................... 3-13 3.4.9 Baud Rate/ Parallel Input Selection (All Printers) ................. 3-13 3.4.10 Parity Selection (All Printers) .............................. 3-14 3.4.11 Automatic Line Feed Override (All Printers) .................... 3-14 3.4.12 Automatic Perforation Skip Override (All Printers) . .. 3-14 3.4.13 Vertical Tab Setting (All Printers) ........................... 3-14 3.4.14 Vertical Tab Clearing (All Printers) .......................... 3-15 3.4.15 Fixed Form Length Selection (FCO, FLC) ..................... 3-15 3.4.16 Programming Form Length (FCO, FLC) ...................... 3-16 3.4.17 Storing Vertical Format (VFC, VFO) ......................... 3-16 3.4.18 Recalling Vertical Format (VFC, VFO) ....................... 3-17 3.4.19 Turn-Off Procedure (All Printers) ........................... 3-18 3.5 Self-Help Procedures ..................................... 3-18 3.6 Serial Interface ........................................ 0 3-19 3.6.1 Baud Rate .......................................... 3-20 3.6.2 Signal Levels and Terminations . .. 3-20 3.6.3 Asynchronous Data Format ............................... 3-21 3.6.3.1 Timing ........................................... 3-21 3.6.3.2 Parity ............................................ 3-21 3.7 Parallel Interface (Optional) ................................ 3-21 3.7.1 Signal Levels and Terminations . .. 3-23 3.7.2 Timing ............................................. 3-23 3.8 TTY Current Loop Interface (Optional) ......................... 3-23 3.8.1 Signal Levels and Terminations . .. 3-23 3.8.2 Timing .. .. 3-25 3.9 Software (Remote Control) ................................. 3-25 3.9.1 Software Commands .. .. 3-25 3.9.2 Software Form Length Setting ............................. 3-25 3.9.3 Software Horizontal Tab Setting ............................ 3-29 3.9.4 Software Line Width Setting .............................. 3-29 3.9.5 . Software Vertical Format Recall ......... -. .. 3-30 3.9.6 Software Vertical Format Store ...........................