Remedy: Does error reoccur? Yes Turn on the printer again. Replace the PU board (PRF).
Code: -
Display: XXXXXX CRC CHECK NG
Description: A PU download data CRC check error. After PU data (PU firmware, custom media data and LED head adjustment data) downloading, a CRC check error was detected.
Remedy: After PU data (PU firmware, custom media data and LED head adjustment data) downloading, a CRC check error was detected. Turn on the printer again and redownload the data (during usual printer operation, the downloading is not performed and the error does not occur).
Code: -
Display: LOADER VERSION XX XX
Description: PU board Flash ROM hash check error
Remedy: Does error reoccur? Yes Turn on the printer again. Replace the PU board (PRF).
Code: -
Display: WDT ERROR
Description: PU firmware went haywire.
Remedy: Does error reoccur? Yes Turn on the printer again. Replace the PU board (PRF).
Code: -
Display: COMMUNICATION ERROR
Description: An error in a PUCU interface.
Remedy: Is the CU assy installed properly? Does the printer recover from the error by replacing the TBR/TB2-6 board. Reinstall the assy properly. Replace the TBR/TB2-6 board. Replace the PU board (PRF).
Code: 001
Display: Service call 001:Error (C5900)
Description: Machine Check Exception Hardware fault detected. (Board defective or Shortage of power supply volume)
Remedy: Is the error issued again? Yes If RAM DIMM is installed, remove it, and turn the power off and on again. Replace the TBR/TB2-6 PCB. Install the RAM DIMM again. Replace the RAM DIMM.
Code: 020
Display: service 020:Error
Description: CU ROM Hash Check Error
Remedy: Does error display reappear? Yes Power OFF/ON Replace TBR/TB2-6 PCB.