CAB SQUIX User manual

Made in Germany
Service Manual
SQUIX
Label Printer

2 2
Family Type
SQUIX SQUIX 4 SQUIX 4.3
SQUIX 4P SQUIX 4.3P
SQUIX 4M SQUIX 4.3M
SQUIX 4MP SQUIX 4.3MP
SQUIX 4MT SQUIX 4.3MT
Edition: 01/2017 - 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 Produk-
ttechnik GmbH & Co. KG.
Topicality
Due to the constant further development of our products
discrepancies 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.
Service Manual
for the following products
Germany
cab Produkttechnik
GmbH & Co KG
Postfach 1904
D-76007 Karlsruhe
Wilhelm-Schickard-Str. 14
D-76131 Karlsruhe
Telefon [phone]
Telefax [phone]
www.cab.de
[email protected]
France
cab technologies s.a.r.l.
F-67350 Niedermodern
Téléphone [phone]
www.cab.de/fr
[email protected]
USA
cab Technology Inc.
Tyngsboro MA, 01879
Phone [phone]
www.cab.de/us
[email protected]
Asia
cab Technology Co., Ltd.
Junghe, Taipei, Taiwan
Phone [phone]
www.cab.de/tw
[email protected]
China
cab (Shanghai)Trading Co., Ltd.
Phone [phone]
www.cab.de/cn
[email protected]
Representatives in other countries on request

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 Replacing Assembly Units....................................................................................................................7
2.1 Tools.........................................................................................................................................................7
2.2 Replacing the Printhead...........................................................................................................................7
2.3 Replacing the Print Roller and the Rewind Assist Roller..........................................................................9
2.4 Replacing the Slipping Clutches ............................................................................................................10
2.5 Replacing the Label Sensor...................................................................................................................12
2.6 Replacing the PCB CPU........................................................................................................................13
2.7 Replacing the Power Supply Unit...........................................................................................................14
2.8 Installing the PCB I/O Interface..............................................................................................................15
3 Adjustments .........................................................................................................................................16
3.1 Measuring and Adjusting the Winding Torques......................................................................................16
3.1.1 Measuring the Winding Torques.......................................................................................................16
3.1.2 Adjusting the Winding Torques.........................................................................................................19
3.2 Adjusting the Printing Mechanism..........................................................................................................20
3.2.1 Preparing the Printer for Adjustment ................................................................................................20
3.2.2 Adjusting the Printhead Position.......................................................................................................21
3.2.3 Adjusting the Printhead Pressure.....................................................................................................22
3.2.4 Adjusting the Transfer Ribbon Feed Path.........................................................................................23
3.2.5 Final Test..........................................................................................................................................23
3.3 Adjusting the Belt Tension at the Main Drive Motor ...............................................................................24
4 Troubleshooting and Error Treatment................................................................................................ 25
4.1 Failure of Device Functions....................................................................................................................25
4.2 Permanent Hardware Faults..................................................................................................................25
5 Block Diagram......................................................................................................................................26
6 Layout Diagram PCB CPU...................................................................................................................27
7 Index......................................................................................................................................................28
Table of Contents

4 4
1 Introduction
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 ttings).
Time Information in the display.

5
1 Introduction
1.2 General Safety Instructions
This service manual is intended for use by qualied service and maintenance personnel. For more operation and
conguration information, refer to the user or conguration 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!
Danger to life and limb from increased current ow through metal parts in contact with the device.
Do not wear clothing with metal parts.
Do not wear jewelry.
Do not wear spectacles with metal frames.
!
Warning!
Items of clothing drawn into the device by moving parts can lead to injuries.
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.
Replace all protective devices (covers, safety notices, grounding cables etc) after maintenance work
has been completed.
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 6
1 Introduction
1.4 Handling Electricity
The following work may only be done by trained and qualied 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 oors, 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 owing 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 rst aid, if necessary.

7
2 Replacing Assembly Units
2.1 Tools
Do not use any worn of damaged tools.
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: 5534199)
Standard tools:
• Phillips-head screwdriver, size 1
• Allen key 1,5 mm
• Screw driver Torx, size TX 20
• Snap ring pliers ZGG 0
• Cylindrical dynamometer (spring scale), 0 - 10 N
• Cylindrical dynamometer (spring scale), 0 - 25 N
• Jaw wrench 8 mm
2.2 Replacing the Printhead
The printhead of the label printer can be replaced without the need for ne adjustment. The printhead must be
replaced if worn or when switching to a printhead with higher or lower resolution.
1
2
3
4
3
4
5
1 Data connector
2 Power connector
3 Threaded holes
4 Catching holes
5 Heating line
Fig. 1 Structure of the printhead
!
Attention!
The printhead can be damaged by static electricity discharges and impacts!
Set up printer on a grounded, conductive surface.
Ground your body, e.g. by wearing a grounded wristband.
Do not touch contacts on the plug connections (1, 2).
Do not touch heating line (5) with hard objects or your hands.

8 8
2 Replacing Assembly Units
66
7 8
33
44 99
Fig. 2 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), following the data cable (7).
Mounting the Printhead
1. First connect the data cable (7), following 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 x 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.

9
2 Replacing Assembly Units
2.3 Replacing the Print Roller and the Rewind Assist Roller
1
3
1
2
5
5
6
4
Fig. 3 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. 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.
8. Put the roller bearings (5) onto the axles of the rollers and screw them into the side plate (3).

10 10
2 Replacing Assembly Units
2.4 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. 3.1 on page 16. Removal and instal-
lation of the slipping clutch is also required for replacement of a winder.
2
1
3
1 Ribbon supply hub: brake
2 Ribbon take up hub: coupling
3 Internal rewinder: coupling
Fig. 4 Slipping clutches
Danger!
Risk of death via electric shock!
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.