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Editor
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KG.
Topicality
Due to the constant further development of our products discrepancies between
documentation and product can occur.
Please check www.cabgmbh.com for the latest update.
Terms and conditions
Deliveries and performances are effected under the General conditions of sale of
cab.
1 Important Information ............................................................................................................................4
1.1 General Safety Instructions ......................................................................................................................4
2.3 Replacing the Control Panel ....................................................................................................................8
2.4 Replacing the Cover .................................................................................................................................9
2.5 Replacing the Outer Casing ................................................................................................................... 10
2.6 Replacing the Print Mechanism ..............................................................................................................11
2.7 Replacing the Printhead .........................................................................................................................12
2.8 Replacing the Print Roller ......................................................................................................................13
2.9 Replacing the Brake of the Ribbon Supply Hub .....................................................................................14
2.10 Replacing the Drive of the Cutting Unit .................................................................................................. 15
2.11 Replacing the Blades of the Cutting Unit ...............................................................................................16
2.12 Replacing the CPU PCB ........................................................................................................................17
2.13 Replacing the Power Unit .......................................................................................................................18
5 Index ......................................................................................................................................................24
44
!
!
1 Important Information
1.1 General Safety Instructions
This service manual is intended for use by qualied service and maintenance personnel. For more operation and
conguration information, refer to the user or conguration 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.
1.2 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.
•
1 Important Information
1.3 Handling Electricity
The following work may only be done by trained and qualied 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.
5
1.4 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.
•
66
2 Replacing Assembly Units
A
12345678
9
10
11
13
141516
12
2.1 Device Overview
View A
Fig. 1 Overview
1 RS-232 serial interface
2 USB 2.0 High Speed Slave interface
3 Two USB master interfaces for keyboard and
scanner
4 Ethernet 10/10 Base T interface
5 CompactFlash card slot
6 Power supply socket
7 PC card slot, type II
8 Power switch
9 Cover
10 Roll hub
11 Holder slots
12 Ribbon rewind hub
13 Printhead mounting with printhead
14 Release button of the print module
15 Pressure roller
16 Control panel
2 Replacing Assembly Units
2.2 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:
Tape holder test collar (cab item number: 5540932)
Protect the printhead against damage by electrostatic discharge!
Put the printer on to a grounded conductive surface!
Ground yourself during printhead replacement for example using a grounded wrist-strap!
Do not touch the connector pins of the printhead by naked hands!
Open the cover and hinge down the control panel, press the release button and hinge up the print module.
1.
Disengage the printhead (4) from the printhead mounting (6) by unscrewing the screw (3).
2.
Remove the printhead cables (5) and (7) from the printhead (4).
3.
After exchanging the printhead (4), attach the printhead cables (5) and (7) to the new printhead.
4.
Attach the printhead (4) to the printhead mounting (6) by the screw (3).
5.
Notice!
Ensure that the pins (2) at the printhead reach into the holes (1) of the printhead mounting.
6. Hinge down the print module and press evenly on the two marked surfaces so that the unit snaps in on both
sides. Close the control panel.
2 Replacing Assembly Units
20
10
0
10
30
40
50
50
1
2
4563
i
2.8 Replacing the Print Roller
Danger!
Danger to life and limb from electric shock!
Disconnect the device from the mains supply before opening the outer casing.
13
Fig. 7 Replacing the print roller
1 Apertures
2 Holding lugs
3 Print roller unit
Open the cover and hinge down the control panel, press the release button and hinge up the print module.
1.
Release the locking device to remove the print roller unit (3):
2.
4 Roller holder
5 Peel-off edge
6 Print roller
Insert a pointed tool through the apertures (1) on both sides, press on the pressure points of the holding lugs
(2), and release the print roller unit (3). A soft click will be heard and the print roller unit (3) rises slightly. Pull the
released print roller unit (3) upwards out of the device.
Pull the roller holder (4) and the peel-off edge (5) off the print roller (6) and insert both into the new print roller.
3.
Notice!
Printers with cutting unit are not equipped with peel-off edge (5).
Insert the print roller unit (3) into the holder apertures, and press down evenly on both sides until it latches in.
4.
Hinge down the print module and press evenly on the two marked surfaces so that the unit snaps in on both
5.
sides. Close the control panel.
1414
i
2 Replacing Assembly Units
2.9 Replacing the Brake of the Ribbon Supply Hub
Fig. 8 Replacing the coupling brake of the ribbon supply hub
Hinge up the printhead assembly, unscrew the three screws (3), and remove the cover (2).
1.
For easier handling:
2.
Ensure that the hub (1) is attached.
-
Press the holder (6) of the friction coupling inwards, turn it into the position 1 and release. Ensure that the
-
locking lugs have been fully inserted into the recesses of the holder.
3. Grip the hub (1) that the axle cannot rotate, press the holder (6) of the friction coupling inwards and turn the lock
washer (7) counterclockwise using the tool (5) until it is released, then take it off.
4. Take off the several elements of the brake and mount the new parts in reverse order.
5. Grip the hub (1) that the axle cannot rotate, press the lock washer (7) in and turn it until it clicks into place
noticeable.
Notice!
Ensure that the markings of the lock washer (7) are outside.
6. Turn the holder (6) back to it’s original position, measure the winding torque ( 3.1 on page 19) and correct if
necessary ( 3.2 on page 20).
7. Re-attach the cover (2) with the three screws (3).
5 Coupling mounting tool
6 Holder
7 Lock washer
2 Replacing Assembly Units
i
2.10 Replacing the Drive of the Cutting Unit
15
Fig. 9 Replacing the drive of the cutting unit
1 Control panel
2 Two plastic latches
3 Cutting unit
4 Clock wheel
5 Shaft
6 Two eccentrics
Turn the control panel (1) down, unlock the cutting unit (3) at the both plastic latches (2) and lift it.
1.
Loosen the nuts (9).
2.
Loosen (but not remove) the two screws (7) carefully so that the connectors (8) can be moved from the pivots of
3.
the eccentrics (6).
Unlock the two eccentrics (6) and pull they off from the shaft (5).
4.
Unlock the clock wheel (4), pull out the shaft (5) from the drive (11) and the base plate (10).
5.
Remove the drive (11) and insert the new drive into the form hole of the base plate (10).
6.
Assembly in reverse order.
7.
Notice!
Ensure that the latches of the two eccentrics (6) and of the clock wheel (4) are positioned as shown in the
gure.
7 Two screws
8 Two connectors
9 Two nuts
10 Base plate
11 Drive
1616
!
2 Replacing Assembly Units
2.11 Replacing the Blades of the Cutting Unit
Fig. 10 Replacing the blades of the cutting unit
1 Control panel
2 Two plastic latches
3 Cutting unit
4 Base plate
5 Screw
6 Three screws
Turn the control panel (1) down and hinge it up ( 2.3 on page 8).
1.
Unlock the cutting unit (3) at the both plastic latches (2) and lift it.
2.
Turn the screw (5) clockwise using a 2.5 mm Allen key and that way swivel the clamp (7) with the lower blade (8)
3.
away from the upper blade (10).
7 Clamp
8 Lower blade
9 Paper guide
10 Upper blade
11 Three screws
Danger!
Danger of cuts and bruising!
The springs at the clamp are strongly tight while turning up or down and when it is turned down. Do not
reach into the area between the blades.
Do not touch the blade edges with bare hands.
4. Loosen the three screws (6) of the lower blade (8), remove the blade and attach the new blade with the three
screws at the clamp (7).
5. Loosen the three screws (11) of the upper blade (10), remove the blade and the paper guide (9) and attach the
paper guide and the new blade with the three screws at the base plate (4).
6. Go on mounting in reverse order.
2 Replacing Assembly Units
10
7
2
3
4
5
6
1
9
8
2.12 Replacing the CPU PCB
Danger!
Danger to life and limb from electric shock!
Disconnect the device from the mains supply before opening the outer casing.
17
Fig. 11 Replacing the CPU PCB
1 Control panel cable
2 Sensors cable
3 Cable for printhead power supply
4 Printhead signal cable
5 Power unit cable
Save the printer conguration on a CompactFlash card, the conguration manual.
1.
6 Stepping motor cable
7 Grounding cable
8 Grounding cable power input module
9 Screw
10 Fan cable
Pull out all memory modules of their slots.
Remove the outer casing ( 2.5 on page 10).
2.
Disconnect cables (1) to (6) from the CPU PCB.
3.
Loosen both screws (9) and the grounding cables (7, 8).
4.
Disconnect the fan cable (10) and remove the CPU PCB.
5.
Reassemble in the reverse order.
6.
Perform a rmware update as required.
7.
Load the printer conguration from a CompactFlash card, or set it on the control panel, the conguration
8.
manual.
1818
834575
9
6
12
2 Replacing Assembly Units
2.13 Replacing the Power Unit
Danger!
Danger to life and limb from electric shock!
Disconnect the device from the mains supply before opening the outer casing, and wait at least one
minute to allow the power unit to discharge.
Fig. 12 Replacing the power unit
1 Power unit cover
2 Base tub latch
3 Screw
4 Recess
5 Screw
Turn the printer and place it on a suitable underlay.
1.
Loosen the two screws (3).
2.
Insert a screwdriver into the recess (4), lift and remove the cover (1).
3.
Unplug the mains input (8) and power unit (6) cables.
4.
Remove the two screws (5).
5.
Remove the power unit (7).
6.
Slide the new power unit (7) under the 3 bottom lugs (9), and slot the power unit PCB, with the drill holes for the
7.
screws (5), into the corresponding projections. Then x in place with the two screws (5).
Plug in the mains input (8) and power unit (6) cables again.
8.
Hook the cover (1) into the lugs of the base tub (2), and xate with two screws (3).
9.
6 Power unit cable
7 Power unit
8 Mains input plug
9 Bottom lug
3 Adjustments
C
BA
123
423
3.1 Measuring the Winding Torques
The winding torques on the ribbon rewind hub and ribbon supply hub are measured by determining the tensile force
on the test collar mounted on the hub.
The physical relation between torque and traction is as follows:
F= M / r
F: Traction [N],
M: Winding torque [Ncm],
r: Radius of test collar (30 mm)
The specied values for the winding torque and the resulting traction on the test collar are:
Friction coupling on the ribbon rewind hubFig. 13 A14.4 - 17.4 Ncm4.8 - 5.8 N
Brake on ribbon rewind hubFig. 13 B2.7 - 4.5 Ncm0.9 - 1.5 N
Friction coupling on the ribbon supply hubFig. 13 C3.9 - 4.5 Ncm1.3 - 1.5 N
19
Winding torque MTraction F
Fig. 13 Measuring the winding torques
Measuring the torque of the coupling on the supply hub:
1.
2.
1 Ribbon rewind hub
2 Test collar
Wind the cord several times round the test collar ( g. 13 C on page 19) and mount it on the supply hub (4). The
spring lugs of the hub must slot into the smaller slot in the test collar.
Measure the winding torque for the coupling of the supply hub, and set it in the same way as on the rewind hub.
3 Spring scale
4 Ribbon supply hub
2020
6
5
4
3
2
1
3
4
5
6
7
4
3
2
1
6
3
4
5
6
7
5
5
4
3
2
1
6
3
4
5
6
7
6172345
i
3 Adjustments
Measuring the torque of the coupling and brake on the rewind hub:
Wind the cord several times round the test collar ( g. 13 A on page 19) and mount it on the rewind hub (1). The
1.
spring lugs of the hub must slot into the smaller slot in the test collar.
Attach a spring scale [10 N] (3) to the end of the cord, raise it vertically until the test collar starts to turn.
2.
Allow the cord to unwind at least one full turn from the test collar, and read off the tensile force F for the coupling
3.
on the spring scale.
Reset the winding torque of the coupling if it differs from the specied value ( 3.2 on page 20).
4.
Disconnect the rewind hub (1) from the drive in order to measure the winding torque for the brake. Press the
5.
release button, hinge up the printhead assembly, repeat the measuring procedure ( g. 13 B on page 19).
If the winding torque of the brake differs from the specied value, the parts involved must be replaced, they
6.
cannot be reset.
3.2 Adjusting the Winding Torques
Danger!
Danger to life and limb from electric shock!
Disconnect the device from the mains supply before opening the outer casing.
Fig. 14 Adjusting the winding torques
1 Knurled ring
2 Locking device
3 Print module
5 Rewind hub friction coupling
6 Cover
7 Screw
4 Supply hub friction coupling
Hinge up the print module (3), unscrew screw (7), and remove the cover (6).
1.
Press the knurled ring (1) of the friction coupling towards the casing wall, turn it into the desired position and
2.
release. Ensure that the locking lugs have been fully inserted into the recesses of the knurled ring.
Measure the winding torque again, compare it with the specied value, and correct if necessary. Repeat until the
3.
measured winding torque lies within the tolerance range.
Reattach the cover (6) with the three screws (7).
4.
Notice!
The numbers on the knurled ring are no setting values. They are used for orientation only when setting the
winding torque.
1: Minimum winding torque, 7: Maximum winding torque
3 Adjustments
i
!
3.3 Adjusting the Print Mechanism
Major adjustment of the print 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 require a correction of the print mechanism adjustment:
-
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
Notice!
Print image errors can also arise from wrinkling of the transfer ribbon. Check the transfer ribbon feed path.
3.3.1 Adjusting Elements
21
Fig. 15 Printhead adjusting elements
1 Printhead
2 Screws for horizontal alignment
Screws for horizontal alignment (2)
-
Turning the screws clockwise will move the printhead to the front.
-
Turning the screws counter-clockwise will move the printhead to the back.
For an optimum print quality, the heating elements of the printhead must be aligned to the peak of the print roller. This
setting guarantees the best print darkness and the parallelism of printed horizontal lines and the label edge.
Screws for adjusting the printhead pressure (3)
Turning the screws clockwise will decrease the printhead pressure on the corresponding side.
-
-
Turning the screws counter-clockwise will increase the printhead pressure.
By turning a screw (3) counter-clockwise and thereby increasing the printhead pressure, the print image will darken at
the corresponding side and the transfer ribbon feed will shift to the other side.
3 Screws for adjusting the printhead pressure
4 Screw for adjusting the printhead bend
Warning!
Be careful while turning the screws (3) counter-clockwise, there is the possibility to screw off the parts
completely.
2222
!
!
3 Adjustments
Screw for adjusting the printhead bend (4)
•
Turning the screw clockwise will slightly bend the middle of the printhead downwards which will increase the
printhead pressure in the center.
In case the normal methods to prevent ribbon wrinkling are not successful, the printhead can be bent a little bit by
turning the screw clockwise. This must be done extremely carefully.
Warning!
Material damage!
As soon as a clear resistance is encountered, the screws should not be turned by more than a quarter-turn
maximum!
As a result, the print image may be lighter on the edges than in the center.
3.3.2 Adjusting
1.
Load such media (label and transfer ribbon) which extends over the entire print width.
2.
In the Printer Conguration set the heat level to 0 and the print speed to 100 mm/s.
3.
Loosen the screw for printhead bending (4) by turning it counter-clockwise until it turns noticeably easy. This
should occur after a maximum of half a turn.
4.
Print out some test patterns with the test function "Test grid“ or similar test labels.
5.
If the horizontal lines in the test grid are not parallel in relation to the label edges adjust the parallelism by turning
the screws (2).
6.
Turn the screws (3) for the printhead pressure clockwise until they turn noticeably easy.
7.
Reduce the heat level in the Printer Conguration until the print image is very light and just recognizable. Under
these conditions, adjustment inaccuracies will become clearly visible.
8.
Print out some more test patterns with the test function "Test grid“. Increase the printhead pressure on that side
where the print image is lighter. Turn the screws (3) counter-clockwise each by a quarter-turn until the print image
is even over the entire width.
It may be necessary to turn both screws alternately.
The darkness of the print image might still not be satisfactory.
9.
Turn the screws (2) counter-clockwise and shift the printhead to the back until the print image almost disappears.
Now turn the screws (2) clockwise and shift the printhead to the front until the print image reaches the maximum
print darkness.
Attend to the parallelism of the horizontal lines to the label edge.
10.
Now check the ribbon feed.
If the ribbon runs to the right turn the right screw (3) counter-clockwise in quarter-turns.
If the ribbon runs to the left turn the left screw (3) counter-clockwise in quarter-turns.
11.
Check the ribbon feed after each adjustment step and wait until it runs stable.
12.
If the adjustment of the ribbon is not successful (for example, if there are wrinkles on both sides at the same time)
the printhead must be bent.
In order to do that turn screw (4) clockwise.
This must be done extremely careful.
Warning!
Material damage!
As soon as a clear resistance is encountered, the screw (4) should not be turned by more than a quarter-
turn maximum!
Check the ribbon feed from time to time. Turn only as far as necessary.
A slightly lighter print image may be visible on the edges of the labels.
If there is no bending required, turn the screw (4) clockwise until the screw jams just a bit.
13. Set the heat level in the Printer Conguration back to 0 and check the result of the adjustments at this setting.
Use cab standard material for the test print. Ideally, the printout should show clearly outlined lines and evenly
black areas without blanks.
4 Block Diagram
Fig. 16 Block diagram 1
23
Fig. 17 Block diagram 2
2424
5 Index
B
Blades of the cutting unit
replacing .....................................16
Brake of the ribbon rewind hub
winding torque ............................19
Brake of the ribbon supply hub .........14
replacing .....................................14
C
CompactFlash card slot ......................6
Control panel ......................................6