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Cab Technology PX Series, Service Manual

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Cab Technology PX Series Service Manual Download Page 31

31

6 

Troubleshooting and Error Treatment

6.1 

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 
transport

Check plug connections at the print head

Examine print head cable for damage and replace if necessary

Replace the print head

Replace the PCB CPU

Display and navigator pad are 
not functioning

Check whether LED1 (green) is illuminating on the PCB CPU  

 Fig. 36 on page 35:

• 

LED1 is not illuminating: The power supply unit or CPU PCB is defective. 
Replace PCB CPU or Power supply unit.

• 

LED1 flashes: Firmware update unsuccessful. 

 

Reload the firmware  

 Configuration Manual

Check cable connection between PCB CPU and control panel

Check whether the correct voltages are active at the 3,3 V and 5 V measurement 
points on the PCB CPU 

 Fig. 37 on page 36

• 

No voltage at either measurement point: The power supply unit may be 
defective. Replace the power supply unit

• 

No voltage at one measurement point: The PCB CPU may be defective. 
Replace the PCB CPU.

Replace LCD Display cpl.

Replace PCB Navi Button assem.

The display is not functioning, 
but the navigator pad is 
functioning

Replace LCD Display cpl.

The navigator pad is not 
functioning, but the display is 
functioning

Check the cable connection between LCD Display cpl. and PCB Navi Button 
assem. and replace if necessary

Replace PCB Navi Button assem.

Replace LCD Display cpl.

Communication via an interface 
is not functioning

Check whether the interface configurations of the printer and computer match

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

Communication via the 
interface on the PCB I/O 
Interface is not functioning 

Check the cable and it's necessary change it.

Replace PCB I/O Interface.

Check connection between PCB USB Hub and PCB CPU .

Replace PCB USB Hub.

Transport of ribbon is braked or 
doesn't braked in save mode

Adjustment of the eccentric is wrong. Adjust it new.

Replace PCB- Ribbon Saver or PCB-Ribbon Saver Sensor 

Table 2 

Failure of device functions

Summary of Contents for PX Series

Page 1: ...Made in Germany Service Manual PX Print Module ...

Page 2: ... 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 Karlsruhe Phone 49 721 6626 0 www cab de USA cab Technology Inc Chelmsford MA Phone 1 978 250 8321 www cab de us Taiwan cab Technology Co Ltd Taipei Phone 886 02 8227 ...

Page 3: ...Sensor 16 4 7 Replacing PCB I O Interface and PCB USB Hub 17 4 8 Replacing the Power Supply Unit 18 5 Adjustments 19 5 1 Measuring and Adjusting the Winding Torques 19 5 1 1 Measuring the Winding Torques 19 5 1 2 Adjusting the Winding Torques 21 5 2 Adjusting the Printing Mechanism 22 5 2 1 Preparing the Printer for Adjustment 22 5 2 2 Adjusting the Printhead Position 23 5 2 3 Adjusting the Printh...

Page 4: ...essories peripheral equipment special fittings Time Information in the display 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 mi...

Page 5: ...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 de...

Page 6: ...gon socket spanner 5 Hexagon socket spanner 5 5 Cylindrical dynamometer spring scale 0 10 N Digital multimeter 2 2 Removing and Installing the Backside Cover Attention The backside cover or cables can be damaged via careless handling X X Move cable out of the risk area X X Put cover into the guiding complete 2 1 2 Fig 1 Removing and Installing the Backside Cover Dismount cover 1 Loosen screws 2 2 ...

Page 7: ...harged 1 Unplug the printer from the electrical outlet and remove the cover of the printer 2 2 Cover dismount mount 2 Remove the material from the printer 3 Disconnect the cable 4 and connector 5 from the label sensor 3 4 Loosen screw 2 with the Allen key 1 5 Push the label sensor 3 in arrow direction and pull it out 6 Clean label sensor and sensor units 3 with brush or cotton swab soaked in pure ...

Page 8: ...1 Printhead 2 Plug connection 3 Plug connection 4 Screw 5 Printing line 6 Pin Fig 3 Structure of the printhead PX4 Attention The printhead is mounted as assembly and precisely aligned at the factory X X Do not loosen the screws 4 under any circumstances Attention The printhead can be damaged by static electricity discharges and impacts X X Ground your body e g by wearing a grounded wristband X X D...

Page 9: ...ns 6 are secured in the corre sponding holes in the printhead mounting bracket 8 3 Lightly keep printhead mounting bracket 8 on the print roller and check for correct positioning of the printhead in the mounting bracket 8 4 Insert screw 7 with washer and tighten it with the Allen key 9 5 Reload labels and transfer ribbon 4 1 2 Replacing the Printhead PX6 2 3 5 4 1 4 1 Printhead 2 Plug connection 3...

Page 10: ...lug connections 2 3 on the printhead 7 9 9 10 6 10 6 4 Fig 7 Installing the printhead PX6 Installing the printhead 1 Attach plug connections 2 3 2 Swing the adjustment elements 10 sidewards to uncover the slots 9 in the printhead carriage 3 Put in the printhead into the printhead carriage and swing down the printhead assembly by hand and hold it 4 Position the printhead in such a way that the thre...

Page 11: ...en the locking system 8 and swing it down 2 Loosen screws 10 and remove ball bearings 9 from the bearing plate 2 3 Pull out the rollers 7 and or the dispense edge 6 4 Insert new rollers 7 and push them onto the hexagonal ends of the concerning axles 5 while turning slightly 5 Insert the dispense edge 6 through the bearing plate 2 into the notch 4 6 Insert ball bearings 9 into the bearing plate 2 a...

Page 12: ...ipping clutches Danger Risk of death via electric shock X 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 Removing the slipping clutch 1 Unplug the printer from the electrical outlet 2 Remove the rear cover of the printer 2 2 Cover dismount mount 3 Remove the snap ring Fig 10 5 Fig 11 7 4 Pull co...

Page 13: ...t stops 4 Secure the snap ring 5 5 Adjust the coupling 5 1 on page 19 Installing the brake on the ribbon supply hub 5 4 3 2 1 6 8 7 1 3 8 1 Bolt 2 Winder axis 3 Spring 4 Bush bearing 5 Pin 6 Brake 7 Snap ring 8 Lever Fig 11 Brake on ribbon supply hub 1 Check the placing of spring 3 bush bearing 4 and pin 5 on the winder axis 2 and correct it if necessary 2 Slide the brake 6 onto the winder axis 2 ...

Page 14: ... Fig 12 Replacing the label sensor Removing the label sensor 1 Unplug the printer from the electrical outlet and remove the cover of the printer 2 2 Cover dismount mount 2 Remove the material from the printer 3 Disconnect the cable 4 from the connector 5 of the label sensor 3 4 Loosen screw 2 with the Allen key 1 5 Push the label sensor 3 in arrow direction and pull it out Installing the label sen...

Page 15: ...tions from the PCB CPU 1 8 Loosen the four screws 2 on the PCB CPU 1 9 Remove PCB CPU 1 Installing the PCB CPU 1 Fix PCB CPU 1 on the retainer with four screws 2 2 Insert all plug connections on the PCB CPU 1 3 Hook in retainer with PCB CPU 1 and tighten screws 3 4 Mount cover 5 Restore all interface connections on the back of the printer 6 Connect the power cable at the rear of the printer 7 Upda...

Page 16: ... 3 4 5 1 Unplug the printer from the electrical outlet 2 Remove the cover of the printer 2 2 Cover dismount mount 3 Unplug all plug connections from the PCB Ribbon saver 1 or PCB Ribbon saver sensor 5 4 Loosen screw 2 to remove PCB Ribbon saver 1 or screw 4 to remove PCB Ribbon saver sensor 5 5 Remove the PCBs 6 Mounting in reverse order Fig 15 Replacing PCB Ribbon Saver and PCB Ribbon Saver Senso...

Page 17: ...detach the PCB USB Hub 2 from the PCB I O Interface 5 5 To replace the PCB I O Interface 5 loosen screws 4 and bolts 8 When replacing the PCB cab I O interface save the plate 7 6 Remove distance bolts 3 by loosening the screws 1 7 Mounting in reverse order Fig 17 Replacing PCB I O Interface and PCB USB Hub 11 9 10 12 14 18 13 15 16 17 PCB USB Hub 9 Connector cab Applicators 10 Control Panel 11 PCB...

Page 18: ...he electrical outlet 2 Remove the cover of the printer 2 2 Cover dismount mount 3 Loosen screw 1 and remove cover plate 2 4 Detach connector on the power supply input 4 5 Detach connector on the power supply output 5 6 Loosen screws 3 6 7 Remove power supply 7 Installing the power supply unit 1 Fix power supply 7 with the screws 3 6 2 Connect cable to the PCB CPU with power supply output 5 3 Conne...

Page 19: ... winding reel which works in both directions The measured torque against the winding direction 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 in winding direction For this reason measurement of the torques at the rewinders are required in both directions Measurement of the winding torques at the transfer ribb...

Page 20: ...e printer from the electrical outlet 2 Remove cover 2 2 on page 6 3 Remove the transfer ribbon from the printer 4 Attach the test collar 3 to the winder 5 Turn the knurled nut 4 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...

Page 21: ...nute until the power supply unit has discharged 2 1 1 Unplug the printer from the electrical outlet 2 Remove the cover 2 2 Cover dismount mount 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 i...

Page 22: ...chanism comprises the following procedures in the order specified 1 Prepare the label printer for adjustment 5 2 1 on page 22 2 Adjust the position of the printhead 5 2 2 on page 23 3 Adjust the printhead pressure 5 2 3 on page 24 4 Adjust the transfer ribbon feed path 5 2 4 on page 25 5 Perform a final test 5 2 5 on page 25 5 2 1 Preparing the Printer for Adjustment 1 2 3 4 5 Fig 22 Preparing the...

Page 23: ...nes to the label corner 2 If the printhead is not aligned properly loosen the screw 3 about one quarter turn 3 If the printhead is not aligned properly use the screws 2 to align at PX4 the lines on the printhead with the tips of the grooves 1 respectively at PX6 front edge of the printhead mounting bracket with the front edge of the slides Screw 2a effects the inner half of the printhead and screw...

Page 24: ...level is to be reduced 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 th...

Page 25: ...from the disk of the winder as the supply roll is from the disk of the supply hub 2 If the ribbon runs inward or outward turn the corresponding screw 3a or 3b clockwise in small increments 3 Wait until the ribbon feed path has stabilized after each step of the adjustment 4 Check the ribbon feed path for wrinkles 5 If wrinkles arise on the inside turn the screw 2 counterclockwise 6 If wrinkles aris...

Page 26: ...Unplug the printer from the electrical outlet 2 Remove the cover 2 2 Cover dismount mount 3 Loosen screw 3 of the belt tension bracket 2 to adjust the tension of belt 5 between motor and print roller 4 4 Swing the belt tension bracket 2 so that the toothed belt 5 is is tensioned tightly between motor and print roller 4 5 Tighten screw 3 in this position of the belt tension bracket 6 Adjust the ten...

Page 27: ...mains supply and wait at lease one minute until the power supply unit has discharged 1 3 2 4 Fig 27 Adjusting the head switch 1 Unplug the printer from the electrical outlet 2 Remove the cover 2 2 Cover dismount mount 3 Lock printhead and pinch roller 4 Slightly loosen the fixing screws 3 of the head switch 1 or 2 5 Move the head switch housing and switching lever 4 to a parallel position see magn...

Page 28: ...until the power supply unit has discharged 1 4 3 2 Fig 28 Adjusting the magnetic clutch 1 Unplug the printer from the electrical outlet 2 Remove the cover 2 2 Cover dismount mount 3 Loosen screw 4 4 Pull armature disk 3 in direction to the slipping clutch 5 Insert the distance caliber 0 1 mm 1 between armature disk 3 and chassis of magnetic clutch 2 6 Slide armature disk 3 against the chassis so t...

Page 29: ...discharged 1 2 3 4a 5 6 5 6 1 4b Fig 29 Eccentric in saver mode Fig 30 Eccentric in print mode 6 7 Fig 31 Checking distance eccentric ball bearing 1 Unplug the printer from the electrical outlet 2 Remove the cover 3 Lock the printhead 4 Loosen the screws 2 at the clock wheel 5 Turn axle 1 in such a way that the eccentrics 6 lift the printhead via the ball bearings 5 at most Fig 29 right side 6 Adj...

Page 30: ...the setting of the jumpers at JP4 and JP5 must be altered Danger Risk of death via electric shock X 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 2 1 Jumper setting I The internal power source is connected Jumper setting O or no jumper An external power source must be connected Fig 32 Configuri...

Page 31: ...ply unit No voltage at one measurement point The PCB CPU may be defective Replace the PCB CPU Replace LCD Display cpl Replace PCB Navi Button assem The display is not functioning but the navigator pad is functioning Replace LCD Display cpl The navigator pad is not functioning but the display is functioning Check the cable connection between LCD Display cpl and PCB Navi Button assem and replace if ...

Page 32: ...he PCB CPU VMOT Motor voltage is too low Check motor voltage 38 V at the measurement point Vmot Fig 37 on page 36 Voltage too low Replace the power supply unit Voltage is correct Replace the PCB CPU 24 V 24 V too low Check voltage at measurement point 24V Fig 37 on page 36 Voltage too low Replace the power supply unit Voltage is correct Replace the PCB CPU 24 V ext 24 V at peripheral connection to...

Page 33: ...00 5955385 5956383 5954067 5956241 5946208 in Nr 5 PX4 3L 200 5955384 5956385 5954087 5954086 5965035 5952586 PX4 3L 300 5955384 5956384 5954087 5954086 5965035 5952586 PX4 3R 200 5955385 5956385 5954087 5954086 5965035 5952587 PX4 3R 300 5955385 5956384 5954087 5954086 5965035 5952587 PX6L 200 5955384 5954217 5954259 5954258 5965035 5952586 PX6L 300 5955384 5956322 5954259 5954258 5965035 5952586...

Page 34: ...34 34 7 Block Diagram Fig 34 Block diagram Part 2 Version with cab I O interface Fig 35 Block diagram Part 2 Version with OEM I O interface ...

Page 35: ...35 8 Layout Diagram PCB CPU Fig 36 Layout diagram PCB CPU components side ...

Page 36: ...36 36 8 Layout Diagram PCB CPU Fig 37 Layout diagram PCB CPU soldering side ...

Page 37: ...on Saver 16 Ribbon Saver Sensor 16 USB Hub 17 Power Source for the OEM I O Interface 30 Power Supply Unit 18 Preparing the Printer 22 Printhead PX4 8 PX6 9 Printhead Locking System 22 Printhead Position 23 Printhead Pressure 24 Printhead Replacement 8 Print Image 22 Printing Mechanism 22 Protective Devices 5 R Ribbon Saver Mechanics 29 Ribbon Supply Hub 13 20 Ribbon Take Up Hub 13 20 Roller 11 S S...

Page 38: ...38 38 This page is intentionally left blank ...

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