Causes: Is the CU assy installed properly? Does the printer recover from the error by replacing the ARC/ SPY/SPA board.
Code: 001
Display: Service call 001:Error(C5400)
Description: Machine Check Exception Hardware fault detected. (Board defectiveness or Shortage of power supply volume)
Causes:
Code: 002 ... 007
Display: Power off/on 002:Error ~ 006:Error 007:Error(C5400)
Description: CPU Exception
Causes: Does error display reappear?
Code: 020
Display: service 020:Error (C5200/C5150/ C3200n)
Description: CU ROM Hash Check Error
Causes: Does error display reappear? (the case of a device which program ROM is attached to board directly.)
Code: 020
Display: Service call 020:Error(C5400)
Description: CU Program ROM Hash Check Error
Causes: Is program ROM DIMM set properly? Is error recovered by replacing program ROM DIMM? (the case of a device which program ROM is set to DIMM Slot.)
Code: 023
Display: Service call 023:Error(C5400)
Description: CU Font ROM Hash Check Error
Causes: Does error display reappear?
Code: 031
Display: Service call 031:Error
Description: CU Optional RAM Check Error
Causes: Is RAM DIMM set properly? Is error recovered by replacing RAM DIMM?