Remedy: Turn on the printer again. Replace the PU board (PRF).
Code: -02
Display: XXXXXXXXXXXXXXXX CRC CHECK NG
Description: A PU download data CRC check error.
Causes: After PU data (PU firmware, custom media data and LED head adjustment data) downloading, a CRC check error was detected.
Remedy: 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: -03
Display: LOADER VERSION XX XX
Description: PU board Flash ROM hash check error
Causes: Does error reoccur?
Remedy: Turn on the printer again. Replace the PU board (PRF).
Code: -04
Display: WDT ERROR
Description: PU firmware went haywire.
Causes: Does error reoccur?
Remedy: Turn on the printer again. Replace the PU board (PRF).
Code: -05
Display: COMMUNICATION ERROR
Description: An error in a PUCU interface.
Causes: Is the CU assy installed properly? Does the printer recover from the error by replacing the SP1 /TBH board.
Remedy: Reinstall the assy properly. Replace the TBR board. Replace the PU board (PRF).
Code: 001
Display: Service call 001:Error(C5900)
Description: Machine Check Exception Hardware fault detected. (Board defectiveness or Shortage of power supply volume)