Troubleshooting And Error Treatment; Failure Of Device Functions - CAB XC Series Service Manual

32 6

Troubleshooting and Error Treatment

6.1

Failure of Device Functions

Functional error
Medium is not transported
No print image with medium
transport
Display and navigator pad are
not functioning
The display is not functioning,
but the navigator pad is
functioning
The navigator pad is not
functioning, but the display is
functioning
Communication via an interface
is not functioning
A peripheral device is not
functioning
Table 2 Failure of device functions
Possible remedy
Check electrical connections between CPU and stepper motor media transport
Check drive mechanism
Replace the CPU
Replace the stepper motor media transport
Check plug connections at the printhead
Examine printhead cable for damage and replace if necessary
at the lower printhead : Check the ribbon saver adjustment
Replace the printhead
Replace the CPU
Check whether LED1 (green) is illuminating on the CPU  Fig. 33 on page 35:
• LED1 is not illuminating: The power supply unit or CPU is defective.
Replace CPU or Power supply unit.
• LED1 flashes: Firmware update unsuccessful.
Reload the firmware  Configuration Manual
Check cable connection between CPU and control panel
Check whether the correct voltages are active at the 3,3 V and 5 V measurement
points on the CPU  Fig. 34 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 CPU may be defective. Replace
the CPU.
Replace LCD Display
Replace PCB Navi Button
Replace LCD Display
Check the cable connection between LCD Display and PCB Navi Button and
replace if necessary
Replace PCB Navi Button
Replace LCD Display
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 CPU
Check whether the peripheral device is activated via programming
Check the USB cable of the peripheral device and replace it if necessary
Check the peripheral device
Replace the CPU
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