Service Manual
Label Printer SQUIX
MADE IN GERMANY 2 Service Manual 2 for the following products
Family Type Media guiding Media guiding left-aligned centered SQUIX SQUIX 2 - SQUIX 2P - SQUIX 4 SQUIX 4M SQUIX 4P SQUIX 4MP SQUIX 4.3 SQUIX 4.3M SQUIX 4.3P SQUIX 4.3MP - SQUIX 4MT - SQUIX 4.3MT SQUIX 6.3 - SQUIX 6.3P -
Edition: 09/2020 - Part No. 9009985 Copyright This documentation as well as translation hereof are property of cab Produkttechnik GmbH & Co. KG. The replication, conversion, duplication or divulgement of the whole manual or parts of it for other intentions than its original intended purpose demand the previous written authorization by cab. Trademark Windows is a registered trademark of the Microsoft Corporation. Editor Regarding questions or comments please contact cab Produkt- technik GmbH & Co. KG. Topicality Due to the constant further development of our products discrep- ancies between documentation and product can occur. Please check www.cab.de for the latest update. Terms and conditions Deliveries and performances are effected under the General conditions of sale of cab.
Germany USA Taiwan China cab Produkttechnik GmbH & Co KG cab Technology, Inc. cab Technology Co., Ltd. cab (Shanghai) Trading Co., Ltd. Karlsruhe Chelmsford, MA Taipei Guangzhou Phone +49 721 6626 0 Phone +1 978 250 8321 Phone +886 (02) 8227 3966 Phone +86 (020) 2831 7358 www.cab.de www.cab.de/us www.cab.de/tw www.cab.de/cn
France Mexico China South Africa cab Technologies S.à.r.l. cab Technology, Inc. cab (Shanghai) Trading Co., Ltd. cab Technology (Pty) Ltd. Niedermodern Juárez Shanghai Randburg Phone +33 388 722501 Phone +52 656 682 4301 Phone +86 (021) 6236 3161 Phone +27 11 886 3580 www.cab.de/fr www.cab.de/es www.cab.de/cn www.cab.de/za Table of Contents 3 1 Introduction...... 4 1.1 Instructions...... 4 1.2 General Safety Instructions...... 5 1.3 Protective Devices...... 5 1.4 Handling Electricity ...... 6 1.5 Procedure in Case of Accidents ...... 6
2 Cleaning...... 7 2.1 Cleaning by the Operator...... 7 2.2 Cleaning the Label Sensor SQUIX 6.3...... 7
3 Replacing Assembly Units...... 8 3.1 Tools...... 8 3.2 Replacing the Printhead...... 8 3.3 Replacing the Print Roller and the Rewind Assist Roller...... 10 3.4 Replacing the Slipping Clutches...... 11 3.5 Replacing the Label Sensor...... 13 3.6 Replacing the PCB CPU...... 14 3.7 Replacing the Power Supply Unit...... 15 3.8 Installing the PCB I/O Interface...... 16 3.9 Greasing Bearing Seats...... 17
4 Adjustments...... 18 4.1 Measuring and Adjusting the Winding Torques...... 18 4.1.1 Measuring the Winding Torques...... 18 4.1.2 Adjusting the Winding Torques...... 21 4.2 Adjusting the Printing Mechanism...... 22 4.2.1 Preparing the Printer for Adjustment...... 22 4.2.2 Adjusting the Printhead Position...... 23 4.2.3 Adjusting the Printhead Pressure...... 24 4.2.4 Adjusting the Transfer Ribbon Feed Path...... 25 4.2.5 Final Test...... 25 4.3 Adjusting the Belt Tension at the Main Drive Motor...... 26
5 Troubleshooting and Error Treatment...... 27 5.1 Failure of Device Functions...... 27 5.2 Permanent Hardware Faults...... 27
6 Block Diagram...... 28
7 Layout Diagram PCB CPU...... 29
8 Index...... 30 4 1 Introduction 4 1.1 Instructions Important information and instructions in this documentation are designated as follows:
Danger! Draws attention to an exceptionally great, imminent danger to your health or life due to hazardous voltages.
Danger! ! Draws attention to a danger with high risk which, if not avoided, may result in death or serious injury.
Warning! ! Draws attention to a danger with medium risk which, if not avoided, may result in death or serious injury.
Caution! ! Draws attention to a danger with low risk which, if not avoided, may result in minor or moderate injury.
Attention! ! Draws attention to potential risks of property damage or loss of quality. i Note!
Advices to make work routine easier or on important steps to be carried out. Environment! Gives you tips on protecting the environment.
Handling instruction
Reference to section, position, illustration number or document.
Option (accessories, peripheral equipment, special fittings).
Time Information in the display. 1 Introduction 5 1.2 General Safety Instructions This service manual is intended for use by qualified service and maintenance personnel. For more operation and configuration information, refer to the user or configuration manual.
Follow the general safety rules below: • Keep the area around the device clean at all times! • Work with safety in mind. • Parts of device that are removed during the maintenance work must be put in a safe place. • Avoid risks of tripping over. Danger! Double pole/neutral fusing.
N
Danger! Danger to life and limb from increased current flow through metal parts in contact with the device. X Do not wear clothing with metal parts. X Do not wear jewelry. X Do not wear spectacles with metal frames. Warning! ! Items of clothing drawn into the device by moving parts can lead to injuries. X Do not wear any items of clothing which could get caught by moving parts.
1.3 Protective Devices
Warning! ! There is a risk of injury if protective devices are missing or defective. X Replace all protective devices (covers, safety notices, grounding cables etc) after maintenance work has been completed. X Replace parts that have become defective or unusable.
Wear protective goggles for: • Knocking pins or similar parts in or out with a hammer. • Using spring hooks. • Inserting or removing springs, retaining rings or grip rings. • Using solvents, cleansers or other chemicals. 6 1 Introduction 6 1.4 Handling Electricity
The following work may only be done by trained and qualified electricians: • Work on electrical components. • Work on an open device still connected to the mains supply.
General precautions before starting maintenance work: • Find out where the emergency and power switches are so that they can be quickly thrown in an emergency. • Disconnect the current supply before carrying out the following work: - Installing or removing power units. - Working in the immediate vicinity of open power supply components. - Mechanical check of power supply components. - Modifying circuits in the device. • Test the zero potential of the device parts. • Check the working area for possible sources of danger, such as wet floors, defective extension cables, defective protective conductor connections.
Additional precautions in the case of exposed voltages: • Ask a second person to remain near the working site. This person must know where the emergency and power switches are, and how to switch the current off if danger arises. • Only use one hand to work on electric circuits of devices that are switched on. Keep the other hand behind your back or in your pocket. This prevents electricity from flowing through your own body.
1.5 Procedure in Case of Accidents • Act calmly and with great care. • Avoid danger to yourself. • Switch off power. • Request medical assistance. • Give first aid, if necessary. 2 Cleaning 7 2.1 Cleaning by the Operator The following cleaning work is described in the Operator's Manual. • Cleaning the device • Cleaning the printhead • Cleaning the print roller • Cleaning the label sensor SQUIX 2 / SQUIX 4
2.2 Cleaning the Label Sensor SQUIX 6.3 Danger! Risk of death via electric shock! X Before opening the housing cover, disconnect the device from the mains supply and wait at least one minute until the power supply unit has discharged.
3
1 2
4
5
6 7
Fig. 1 Cleaning the label sensor SQUIX 6.3 1. Remove the rear cover. 2. Remove the material from the printer. 3. Disconnect the plug (2) from the label sensor (1). 4. Loosen the screw (5). 5. Hold pressed the knob (4) and pull the label sensor with the handle (6) out of the profile.That way the distance plate (7) is pushed out of label sensor guide. 6. Clean the label sensor slots (3) with brush or cotton swab soaked in pure alcohol. 7. Push label sensor back into the guide. 8. Push the distance plate (7) into the guide of the label sensor. 9. Connect the plug (2) to the label sensor (1). 10. Mount the rear cover. 11. Adjust label sensor mechanically and tighten the screw (5) Operator's Manual. 8 3 Replacing Assembly Units 8 3.1 Tools X Do not use any worn of damaged tools. X Only use tools and testing devices that are suitable for the task at hand. cab special tools: • Test collar for transfer ribbon winder (cab item number: 5540932) Utilities: • Grease for plastic materials (cab Part No.: 9200196) • All-round high-performance grease (cab Part No.: 5907092) Standard tools: • Phillips-head screwdriver, size 1 • Allen key 1,5 mm • Screw driver Torx, size TX 20 • Snap-ring pliers A0 • Cylindrical dynamometer (spring scale), 0 - 10 N • Cylindrical dynamometer (spring scale), 0 - 25 N • Jaw wrench 8 mm
3.2 Replacing the Printhead The printhead of the label printer can be replaced without the need for fine adjustment.The printhead must be replaced if worn or when switching to a printhead with higher or lower resolution.
3 1 2
4
1 Data connector 3 2 Power connector 3 Threaded holes 4 Catching holes 4 5 Heating line
5
Fig. 2 Structure of the printhead
Attention! ! The printhead can be damaged by static electricity discharges and impacts! X Set up printer on a grounded, conductive surface. X Ground your body, e.g. by wearing a grounded wristband. X Do not touch contacts on the plug connections (1, 2). X Do not touch heating line (5) with hard objects or your hands. 3 Replacing Assembly Units 9
6 7 8 6
3 4 9 4 3 9
Fig. 3 Replacing the printhead
Dismounting the Printhead 1. Remove the media from the printer. 2. Lock the printhead. 3. Loosen two screws (6). 4. Open the printhead locking and if necessary remove the printhead from the pins (9). 5. First unplug the power cable (8), followed by the data cable (7).
Mounting the Printhead 1. First connect the data cable (7), followed by the power cable (8). 2. Place the printhead into the printhead assembly and insert the pins (9) into the holes (4). 3. Press down the printhead carriage and fix the printhead with the screws (6) at the carriage using the threaded holes (3). 4. Clean the heating line with the cleaning cloth included in the contents of delivery. 5. Reload labels and transfer ribbon. 10 3 Replacing Assembly Units 10 3.3 Replacing the Print Roller and the Rewind Assist Roller
6 1
5 1
5
4
2 3
Fig. 4 Replacing the print roller and the rewind assist roller 1. Open the printhead locking. 2. Lift the pinch roller (2) from the rewind assist roller. 3. Remove labels and transfer ribbon from the printer. 4. Turn the roller bearings (5) with the 2.5 mm Allen key out of the side plate (3). 5. Pull print roller (6) and rewind assist roller (4) from the shafts (1) though the side plate (3). 6. Clean the shafts (1). 7. Lubricate the shafts (1) with all-round high-performance grease. 8. Insert the new rollers (4,6) and slide them onto the concerning shaft(1). Turn the rollers slightly until the hexagonal shafts engage the hexagonal sockets of the rollers. 9. Put the roller bearings (5) onto the axles of the rollers and screw them into the side plate (3). 3 Replacing Assembly Units 11 3.4 Replacing the Slipping Clutches The rewinder for the transfer ribbon and the internal rewinder are coupled with slipping clutches to the main drive. The supply hub of the transfer ribbon is braked with a slipping clutch during printing. Replace a slipping clutch when the set value of the torque cannot be set. 4.1 on page 18. Removal and instal- lation of the slipping clutch is also required for replacement of a winder.
1
2 1 Ribbon supply hub: brake 2 Ribbon take up hub: coupling 3 Internal rewinder: coupling
3
Fig. 5 Slipping clutches
Danger! Risk of death via electric shock! X Before opening the housing cover, disconnect the device from the mains supply and wait at lease one minute until the power supply unit has discharged. 12 3 Replacing Assembly Units 12 Replacing the Slipping Clutches at the Rewinders
4 Snap ring 5 Slipping clutch 6 Coupling disks 7 Winder axle 8 Collar the belt gear
8 7 6 5 4
Fig. 6 Slipping clutches at the rewinders
1. Unplug the printer from the electrical outlet. 2. Remove the rear cover of the printer 3. Remove the snap ring (4). 4. Pull the clutch (5) from the winder axle (7). 5. Slide the new clutch (5) onto the winder axle (7). 6. Align grooves in the coupling disks (6) with the guides in the collar of the belt gear (8). 7. Slide coupling further until it stops. 8. Secure the snap ring (4). 9. Adjust the clutch 4.1 on page 18.
Replacing the Brake at the Ribbon Unwinder
4 Snap ring 7 Winder axle 9 Brake 10 Lever 11 Tappet 12 Pin 13 Spring
13 12 7 11 10 9 4
Fig. 7 Brake at the ribbon unwinder 1. Unplug the printer from the electrical outlet. 2. Remove the rear cover of the printer 3. Remove the snap ring (4). 4. Pull the brake (9) from the winder axle (7). Ensure that the tappet (11) remains on the winder axle. Reattach the tappet to the winder axle if it has been pulled off. The axle profile is shaped in such a way that the tappet only fits in one way. 5. Check the position of the spring (13). Ensure that the pin (12) grasps between the spring arms. 6. Slide the new brake (9) onto the winder axle (7) in such a way that it fits on the hexagonal profile of the tappet (11). 7. Push the clutch further until it stops in such a way that lever (10) grasps between the spring arms.. 8. Secure the snap ring (4). 9. Adjust the brake 4.1 on page 18. 3 Replacing Assembly Units 13 3.5 Replacing the Label Sensor Note! i Soiling of the label sensor can also cause malfunctions. X Before replacing the label sensor, check whether it is soiled and clean it if necessary.
Danger! Risk of death via electric shock! X Before opening the housing cover, disconnect the device from the mains supply and wait at least one minute until the power supply unit has discharged.
3
1 2
4
5
6 7
Fig. 8 Replacing the label sensor
1. Remove the rear cover. 2. Remove the material from the printer. 3. Disconnect the plug (2) from the label sensor (1). 4. Loosen the screw (5). 5. Hold pressed the knob (4) and pull the label sensor with the handle (6) out of the profile.At SQUIX 6.3 that way the distance plate (7) is pushed out of label sensor guide. 6. Push the new label sensor into the guide. At SQUIX 6.3 push the distance plate (7) into the guide of the label sensor. 7. Connect the plug (2) to the label sensor (1). 8. Mount the rear cover. 9. Adjust label sensor mechanically and tighten the screw (5) Operator's Manual. 10. Adjust label sensor electrically Configuration Manual > Calibrate label sensor. 14 3 Replacing Assembly Units 14 3.6 Replacing the PCB CPU Danger! Risk of death via electric shock! X Before opening the housing cover, disconnect the device from the mains supply and wait at least one minute until the power supply unit has discharged.
1
4 1 5 1 4 screws 2 PCB CPU 6 Connectors 2 3 CON7 - I/O interface 4 CON13 - Switch locking system 7 5 CON12 - Control panel 6 CON11 - Sensors 7 CON10 - Printhead 8 CON9 - Power supply 8 9 CON8 - Stepper motor
9
1 1 3
Fig. 9 Replacing the PCB CPU
1. If possible, save the printer configuration to an external medium Configuration Manual. 2. Unplug the printer from the electrical outlet. 3. Detach all interface cables from the back of the printer. 4. Remove all memory media from the slots. 5. Dismount the rear cover. 6. Unplug all plug connections (3-9) from the PCB CPU (2). 7. Loosen screws (1) and remove PCB CPU (2). 8. Attach the new PCB CPU (2) with four screws (1). 9. Connect all cables to the PCB CPU (2). 10. Mount the rear cover. 11. Restore all interface connections on the back of the printer. 12. Connect the power cable. 13. Update the firmware if necessary. 14. Adjust the label sensor Configuration Manual. 15. Load the printer configuration from the memory medium if possible. Otherwise, set the printer configuration via control panel Configuration Manual. 3 Replacing Assembly Units 15 3.7 Replacing the Power Supply Unit Danger! Risk of death via electric shock! X Before opening the housing cover, disconnect the device from the mains supply and wait at least one minute until the power supply unit has discharged.
1 2 3
8
8
8 4
5
7 6
Fig. 10 Replacing the power supply unit
1. Unplug the printer from the electrical outlet. 2. Remove the rear cover. 3. Dismount cover (5), control panel (4) and cover (3). 4. Dismount the PCB CPU 3.6 on page 14. 5. Unplug the cables from the connectors (6,7). 6. Loosen 3 screws (8). 7. Loosen screw (2) and remove the power supply unit (1). 8. Insert the new power supply unit an fix it with the screws (2,8). 9. Connect the cables at the connectors (6,7). 10. Re-mount the PCB CPU 11. Re-mount cover (3), control panel (4) and cover (5). 12. Mount the rear cover. 16 3 Replacing Assembly Units 16 3.8 Installing the PCB I/O Interface Danger! Risk of death via electric shock! X Before opening the housing cover, disconnect the device from the mains supply and wait at least one minute until the power supply unit has discharged.
1
2
1
3 4 5
Fig. 11 Installing the PCB I/O interface
1. Unplug the printer from the electrical outlet. 2. Remove the rear cover. 3. Loosen two screws (1)and remove cover (2). 4. Insert the PCB I/O interface (3) and fix it with two screws (1) 5. Connect the cable (4) to the PCB I/O interface (3) and the PCB CPU (5). 6. Mount the rear cover. 3 Replacing Assembly Units 17 3.9 Greasing Bearing Seats
1 2
A B C
3 5 D E 4 6
7 F 8
Fig. 12 Greasing bearing seats
Greasing of the following bearing seats is necessary if particular spare parts are mounted or assemblies are dismantled meanwhile:
With grease for plastic materials (Part No.: 9200196) A Pivot Arm (1) - Chassis B Roller (2) - Pivot Arm (1) C Side Plate (3) - Roller (2) D Side Plate (3) - Roller (4)
With all-round high-performance grease (Part No.: 5907092) E Print Roller (6) - Shaft (5) F Rewind Assist Roller (8) - Shaft (7) 18 4 Adjustments 18 4.1 Measuring and Adjusting the Winding Torques The rewinder for the transfer ribbon and the internal rewinder are coupled with slipping clutches to the rewinder drive. The unwinder of the transfer ribbon is braked with slipping clutches during printing. The correct setting of the torques of these slipping clutches is necessary for: • precise conveyance of the transfer ribbon during label transport • the prevention of wrinkles in the feed path of the transfer ribbon • high positioning accuracy of the peeled labels. The winding axes of the rewinders are not actively driven by the belts during label backfeed, but rather solely by the pull of the print roller. The torque required to disengage the rewinder from the belt drive is implemented via a brake in the winding reel, which works in both directions. The measured clockwise torque is the sum of the coupling torque and the torque of the brake. Only the torque of the brake is measured when the winding axis is rotating counter- clockwise. For this reason, measurement of the torques at the rewinders are required in both directions. The method of measurement differs for the various types of slipping clutches: • Measurement of the winding torques at the transfer ribbon rewinder and unwinder page 19. • Measurement of the winding torque at the internal rewinder page 20. If the winding torque differs from the set value, it must be adjusted. The procedures for adjusting the winding torques of the transfer ribbon winders and the internal rewinder are identical 4.1.2 on page 21.
4.1.1 Measuring the Winding Torques
Transfer Ribbon Rewinder and Unwinder
forces on a test collar attached to the winder.
The physical relation between the torque and the pulling force is: F= M / r F: Pulling force [N], M: Winding torque [Ncm], r: Radius of the test collar (30 mm) 4 Adjustments 19 The set values for the winding torque and the resulting pulling force at the test collar are:
Winder Measurement Direction of rotation Printer Winding torque M Pulling force F Ribbon rewinder A against winding direction SQUIX 2 10,2 - 10,8 Ncm 3,4 - 3,6 N SQUIX 4 12,9 - 14,4 Ncm 4,3 - 4,8 N SQUIX 6.3 B in winding direction all 2,1 - 3,0 Ncm 0,7 - 1,0 N Ribbon unwinder C any SQUIX 2 3,6 - 4,5 Ncm 1,2 - 1,5 N SQUIX 4 SQUIX 6.3 6,0 - 7,5 Ncm 2,0 - 2,5 N
Table 1 Winding torques at the transfer ribbon winders
1 1 1 AB C
2 2 3 3 4 4
Fig. 13 Measuring the winding torque at the transfer ribbon rewinder (left) and unwinder (right)
Danger! Risk of death via electric shock! X Before opening the housing cover, disconnect the device from the mains supply and wait at least one minute until the power supply unit has discharged.
1. Unplug the printer from the electrical outlet. 2. Remove the rear cover. 3. Remove the transfer ribbon from the printer. 4. Attach the test collar (3) to the winder (4). 5. Turn the knurled nut counterclockwise to clamp the test collar. 6. Wind the cord attached to the test collar around the test collar several times. 7. Secure spring scale [10 N] (1) at the end of the cord. 8. Move the spring scale upward vertically until the winder begins turning. 9. Hold the drive belt in place during the measurement. Otherwise, the measurement is not accurate. 10. Allow the cord to unwind from the test collar at least one full turn and read the pulling force F on the spring scale at the same time. 11. If the winding torque differs from the set value, it must be adjusted 4.1.2 on page 21. 20 4 Adjustments 20 Internal Rewinder
Measurement of the winding torque at the internal rewinder occurs by determining the pulling forces with a cord wrapped around the rewinder. The physical relation between the torque and the pulling force is: F= M / r F: Pulling force [N], M: Winding torque [Ncm], r: Radius of the rewinder (38 mm) The set values for the winding torque and the resulting pulling force at the rewinder are:
Winder Measurement Direction of rotation Printer Winding torque M Pulling force F Internal rewinder A against winding direction all 28 - 32 Ncm 14 - 16 N B in winding direction all 8 - 12 Ncm 4 - 6 N
Table 2 Winding torques at the internal rewinder
Danger! Risk of death via electric shock! X Before opening the housing cover, disconnect the device from the mains supply and wait at least one minute until the power supply unit has discharged.
1. Unplug the printer from the electrical outlet. 2. Remove the rear cover. 3. Remove the labels from the printer. 1 1 4. Push the cord (2) under a bracket (3) of the internal rewinder (4) and wind it around the rewinder. 5. Secure spring scale [25 N] (1) at the end of the cord. A B 6. Move the spring scale upward vertically until the winder begins turning. If the drive belt at the rewinder is also moving, hold it in place during the measurement. Otherwise, the measurement is not accurate. 7. Allow the cord to unwind from the rewinder at least one full turn and read the pulling force F on the spring scale at the same time. 2 8. If the winding torque differs from the set value, it must be adjusted 4.1.2 on page 21. 3 4
Fig. 14 Winding torques at the internal rewinder 4 Adjustments 21 4.1.2 Adjusting the Winding Torques The winding torque of a winder can be changed at the knurled ring of the respective slipping clutch. The numbers on the knurled ring stand for the value of the winding torque: • 1: Lowest winding torque • 7: Highest winding torque The current value is indicated by the number located at the positions of the two locking tabs.
Danger! Risk of death via electric shock! X Before opening the housing cover, disconnect the device from the mains supply and wait at least one minute until the power supply unit has discharged.
1. Unplug the printer from the electrical outlet. 2. Remove the rear cover. 3. Press the knurled ring (1) of the slipping clutch toward the housing wall. The lock (2) of the knurled ring is released. 4. Turn the knurled ring while pushing it and release it in the desired position. 5. Ensure that the tabs of the lock are located completely in the grooves of the setting value. 6. Measure the winding torque again and compare it to the set value. Ribbon winders page 19 Internal rewinder page 20 7. Repeat the adjustment until the measured winding torque is within the tolerance range. Is it not possible change the slipping clutch 3.4 on page 11. 8. Mount the rear cover. 1 2
Fig. 15 Adjusting the winding torque 22 4 Adjustments 22 4.2 Adjusting the Printing Mechanism Major adjustment of the printing mechanism beyond format-based settings is only required if the printhead assembly has been removed or parts in this area have been replaced. Excluded from this is the replacement of the printhead, after which readjustment is generally not required. The following print quality imperfections may indicate maladjustment of the printing mechanism: • Print image too light • Print image is spotty • Print image lighter on one side • Horizontal lines not parallel to the horizontal label edges • Clear lateral drift of the transfer ribbon Note! i Print image errors can also arise from wrinkling of the transfer ribbon. X Check the transfer ribbon feed path and the head locking system for correct adjustment before making adjustments to the printing mechanism Operator's Manual.
Adjustment of the printing mechanism comprises the following procedures in the order specified: 1. Prepare the label printer for adjustment 4.2.1 on page 22. 2. Adjust the position of the printhead 4.2.2 on page 23. 3. Adjust the printhead pressure 4.2.3 on page 24. 4. Adjust the transfer ribbon feed path 4.2.4 on page 25. 5. Perform a final test 4.2.5 on page 25.
4.2.1 Preparing the Printer for Adjustment
1 1. Load transfer ribbon at the print unit to be adjusted and labels which extend across the entire printing 2 width. 3 2. In the printer configuration, set the Print speed parameter to 100 mm/s. 4 3. Move the transfer ribbon deflection to the central position (1) with the screw (2). 4. Position the plungers (4) in such a way that the adjustment screws are accessible through the holes 5 (3) of the square axis. 5. Loosen the screw (5) for the printhead bowing with an Allen key (1.5 mm) and turn it counterclockwise until turning becomes perceptibly easier. This should occur after a maximum of a half a rotation. 6. Continue with the adjustment of the printhead position 4.2.2 on page 23.
Fig. 16 Preparing the printer for adjustment 4 Adjustments 23 4.2.2 Adjusting the Printhead Position In order to achieve the best possible print image the following printhead settings are necessary: • Set the parallelism of horizontal lines with the edge of the label. • Align the heating line with the highest point of the print roller. Density of the print image is the greatest at this point.
Attention! ! Risk of damage. Attempting to adjust the printhead when the fixing screws (1) are tight can lead to defects at the printhead assembly. X Always loosen the fixing screws (1) before adjusting the printhead.
5
1 2 3 4
Fig. 17 Adjusting the printhead position i Note! X Open and close the printhead after each step of the adjustment.
1. Loosen the screw (1) about a quarter turn. 2. Align the mark (2) on the carrier plate to the pointer (4) in the printhead carriage by turning the screw (2). 3. Check the printhead alignment with the test function Test grid ( Configuration Manual) or a similar pattern. 4. If horizontal lines are not parallel to the label edges, adjust the parallelism with the screw (2). 5. Tighten the screw (1). 6. Set the best possible image quality by turning the eccentric (5). Differences in the density between the two sides are still permissible. 7. Continue with the adjustment of the printhead pressure 4.2.3 on page 24. 24 4 Adjustments 24 4.2.3 Adjusting the Printhead Pressure The printhead pressure can be changed with the screws (1a) and (1b) at the inside and outside of the printhead. Increasing the printhead pressure leads to an improvement of the print image density on the corresponding side and to a shifting of the ribbon feed path to the other side.
1a
1b
Fig. 18 Adjusting the printhead pressure
1. Turn the adjustment screws (1a, 1b) counterclockwise until turning becomes perceptibly easy. 2. Reduce the Heat level in the printer configuration until the print image is only barely recognizable. Under these conditions, inaccuracies become clearly visible during adjustment. 3. Create print samples with the test function Test grid ( Configuration Manual) or a similar print pattern. 4. Adjust the adjustment screw (1a or 1b) clockwise in small increments on the side with the weaker print image until the print image is even across the entire width. 5. Set the original Heat level in the printer configuration. 6. Continue with setting of the transfer ribbon feed path 4.2.4 on page 25. 4 Adjustments 25 4.2.4 Adjusting the Transfer Ribbon Feed Path You can adjust the transfer ribbon feed path by changing the head contact pressure and adjusting the transfer ribbon deflection (3). Increasing the head contact pressure with the screws (2a) and (2b) shifts the ribbon feed path in the corresponding direction. The skew of the transfer ribbon deflection is used to suppress wrinkles in the transfer ribbon feed path. Wrinkles which cannot be remedied with the skew of the transfer ribbon deflection can be suppressed by bowing the printhead. Attention! ! The printhead assembly can be damaged when bowing the printhead. Turning the adjustment screw (4) too hard can cause damage to the printhead assembly. X As soon as you perceive clear resistance when turning the adjustment screw (4), you may only continue turning the screw in very small increments, but no more than one eighth of a turn. X Only turn the adjustment screw (4) as far as is absolutely necessary.
1. Check the transfer ribbon feed path. The wound up ribbon should be the same distance from the disk of the winder as the supply roll is from the disk of the supply hub. 1 2a 2. If the ribbon runs outward, turn screw (2a), or if the ribbon runs inward, turn screw (2b) clockwise in 3 small increments. Wait until the ribbon feed path has stabilized after each step of the adjustment. 3. Check the ribbon feed path for wrinkles. 2b 4. If wrinkles arise on the inside, turn the screw (1) 4 counterclockwise. If wrinkles arise on the outside, turn the screw (1) clockwise. 5. If the wrinkles cannot be remedied (e.g. wrinkles in the center), turn the adjustment screw (4) clockwise with extreme care using an Allen key (1.5 mm) and observe the ribbon feed path. When the adjustment screw (4) is tightened, the printhead is bent downward slightly in the center. It is possible that a slight lightening at the edge areas of the print image could occur here. 6. If bowing is not necessary, turn the screw (4) clockwise until the screw is just barely clamping. 7. When the transfer ribbon feed path is set, continue with the final test. Fig. 19 Adjusting the transfer ribbon feed path
4.2.5 Final Test X Recheck the setting with the test function Test grid ( Configuration Manual) or a similar print pattern. When using standard cab media, the test printout must show lines with sharp contours and black areas without any parts missing. 26 4 Adjustments 26 4.3 Adjusting the Belt Tension at the Main Drive Motor
Danger! Risk of death via electric shock! X Before opening the housing cover, disconnect the device from the mains supply and wait at least one minute until the power supply unit has discharged.
1
1
2 3
1
Fig. 20 Adjusting the belt tension
1. Unplug the printer from the electrical outlet. 2. Remove the rear cover. 3. Loosen the three fixing screws (1) of the motor (2). 4. Swivel the motor (2) in such a way that the toothed belt (3) is tensioned tightly and tighten the fixing screws (1) in this position of the motor. 5 Troubleshooting and Error Treatment 27 5.1 Failure of Device Functions
Functional error Possible remedy Medium is not transported Check electrical connections between PCB CPU and motor Check drive mechanism Replace the PCB CPU Replace the motor No print image with medium Check plug connections at the printhead transport Examine printhead cable for damage and replace if necessary Replace the printhead Replace the PCB CPU No display function Check cable connection between PCB CPU and control panel Replace the control panel Replace the PCB CPU Communication via an interface Check whether the interface configurations of the printer and computer match is not functioning For an Ethernet connection, check the validity of the IP address and the subnet mask Check the interface cable and replace it if necessary If all functionality of the interface has been lost, replace the PCB CPU A peripheral device is not Check whether the peripheral device is activated via programming functioning Check the USB cable of the peripheral device and replace it if necessary Check the peripheral device Replace the PCB CPU
Table 3 Failure of device functions
5.2 Permanent Hardware Faults
Error message Cause Fault recovery Printhead thermistor broken Thermistor at the printhead defective Replace the printhead Voltage error
VBAT Voltage of the battery on the PCB Replace the PCB CPU CPU is too low 24 V 24 V too low Check voltage at measurement point +24V Fig. 21 on page 29: • Voltage too low: Replace the power supply unit • Voltage is correct: Replace the PCB CPU 24 V TPH 24 V for the printhead too low Check voltage at measurement point +24V TPH Fig. 21 on page 29: • Voltage too low: Replace the power supply unit • Voltage is correct: Replace the PCB CPU
Table 4 Hardware faults 28 6 Block Diagram 28
Printer No.1 Printer No.2 SQUIX 4...P 5977331 SQUIX 4/300... 5977444 SQUIX 4...T 5952598 SQUIX 4/600... 5977380 SQUIX 6.3...P 5977331 SQUIX 4.3/200... 5977382 SQUIX 4.3/300... 5977383 SQUIX 6.3/200... 5977386 SQUIX 6.3/300... 5977387
Fig. 21 Block diagram 7 Layout Diagram PCB CPU 29
B2 B1 Measuring points at CON9: #FD1 1 TOP10R117 C116 R71 R150C296 R151
R6 C269R152 C262 C266 V11 R116 R159
C148 GND R140 R142 WP R44 C179 C157 N3 C155 C175 C163 1 C290 C295R158 R41 P8 GND T T C174 R R C274 C173 C162 C161 CON17 L27 C275 C287 P7
P P C292 C176
N N 1 C160 C177 C158 +24V M M C166 L26 R34 P6 L L C156 R32
K R130 K L33 C291
R305 J J C164 N5 R304 P5 D3 H D2 H L85 C167 C178 G G R55
C159 R54 F F C303 C172
P4 E E C351 L66 +V (+24V)
D D C154
C223 C224 MOT
C C170 C C171 P3
B B R66 L73 C152 C165 C168
CON1 R47 R101 L83
A A C348 CD R48 R72 L84 C16998 7 3 2 1 C1539 8 7 32 1 C301
P2 L39 + R100 R574 R572 R573 R575 L36 R30
P1 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 R132 C17 R131 R568 R569 R570 AER571 AE AD AD L43 P9 Measuring points on the PCB:
AC AC CON12 AB AB AA AA L48 Y Y C299 C222 R96 R45 R42
GND W W R227 V V R166 C225 R139 U U L49 T T R R TOP2 +24V C232 R85 C209 R160 R280 P P L50 L28 R123 N N C280 2 M M 1 N4 D1 D5 U8 C259 C293 R125 R136 L L R163 K K R121 L24 J J 1bot 1top C276 TOP3 +5V H H
R213 G G R126 C279
C246 C335 F F R111 R97 R102 1 R215 E E C342 D D L80 C C R19 C278 V7 B B H1 R172 C66 R134 TOP25 +24V TPH CON3 R219 A A U2 R220 C300 C322 K
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 F2 V15 H6 H5 H4 25 R29 1 R303 R171 R254 C339 C323
2 1 CON11 L29 R255
R268 C151 C150 C264 G2 C77 TOP26 +V (+24V) C338 R209 3 4 MOT
R256 L72 K 2 1 K K R137 1 2 C235 C245 L93 R253 R299 R298 R300 C340 C343 C344 L30 C341 G6 3 4
1 C113 V14 L14 C181 C270
C220 TOP17 C347 L1 F1 C221 C219 C182 TOP23 L68 C183 B6 C230 D4 L25 R567 C180 TOP18 C346 L3 LEDs on the PCB: R247 TOP24 L67 L42 R245 TOP19 C345 L6
CON4 C350 L18 C231 TOP16
1 C242 TOP8 TOP20 C312 L9 U3 TOP15 C349 L17 TOP9 TOP7 C327 R566 TOP21 C311 L10 R78 TOP5 TOP12TOP11 TOP13 C309 L15 H1 +3,3V R119 D13 R4 R5 TOP22 C310 L12 C252 R120 C302 C237 R236 TOP6 TOP14 C271 L16 C304 R237 TOP25 L90 L87 C212 A1 C211 C213 H7 LED FPGA 1 R63 R62 R73 R64 R270
Gn R84 L13 C214 C267 K1 R24 L2 C313 CON10 C2 C268 C215 R294 D14 V24 on during start C272 C210 C196
C216 C207 V17 U4 1 C5 R141 C9 R59 R60 C283 R68 R89 C208 C352 C206 R1 C112 C199 CON2 C217 procedure
C1 U1 D15 V25 C186 R76 R61 R65 K2 C4 L4 TOP4 C285 1 Ye C3 R169C185 R87 R88 blinking after start A2 R70 R25 R295 R108 R109 V18 R20 C314 C320 C258 C260 C261 R36 V3 V19 R27 C240 C241 C187 R323 C277 procedure R77 L5 R69 R58 R56 1 2 C263 C265 R99 C42 R155 C308 C307 K
TOP3 V20 Buchse C8 H7 R37 R98 C201 R301
C10 C11 +
L31 C325 L32 TOP1 C288
C193 14 L20 N2 C203 C192 C234 V12 L34 C324 U7 R3 R2 R21 C321 R11 C391 C194 R33 L21 C198C200 L35 C6 1
C73 C202 C13 C282 CON5 R23 J L A E N C G C286 N1 C12 L37 CON9 B F K P D H
M +
C16 R26 C15 L38 TOP2 C72 R168 R122 C27 C14 TOP26 1 R107 B5 + R31 V10 C289 C297 N6 1 C204 C26 V9 C243 C239 R35 C197 C114 R170 C205 C28 V21 V2 V1 CON8 L59 L62 R22 C255 C256 L23 1 #FD3 R74 L61 L60 L58 L57 L56 L53 L52 L40 L89 L74 L71 L70 L69 L51 L64 1 L63 L75 R75 C184 B4 E1 2 V13 B3 X1 CON7 1 C149 1 #FD2
Fig. 22 Layout diagram PCB CPU 30 8 Index 30 B T Belt tension...... 26 Test collar...... 18 Block diagram...... 28 Tools...... 8 Brake...... 12 Torque...... 18, 20 Transfer ribbon feed path...... 25 C CPU...... 14 U Unwinder...... 19 E Error treatment...... 27 V Voltages, exposed...... 6 F Failure of device functions...... 27 W Winding torque G Adjustment...... 21 General safety instructions...... 5 Internal rewinder...... 20 Greasing...... 17 Measurement...... 18 Ribbon winders...... 19 H Hardware faults...... 27
I Important information...... 4
L Label sensor replacement...... 13 Layout diagram PCB CPU...... 28
M Maintenance work...... 6
P PCB CPU replacement...... 14 Power supply replacement...... 15 Power supply unit...... 15 Printhead position...... 23 Printhead pressure...... 24 Printhead replacement...... 8 Print image...... 22 Printing mechanism...... 22 Print roller replacement...... 10 Protective devices...... 5
R Rewind assist roller replacement...... 10 Rewinder...... 19, 20
S Slipping clutches Adjustment...... 21 Replacement...... 11