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Chapter 5 Troubleshooting Error Codes
Troubleshooting Self Diagnostic Codes
Self Diagnostic Error Codes
Code
Cause/Description
Remedy
002 - 005
CPU Exception
Power Off/On. If RAM DIMM is installed, remove and
Power OFF/ON.
Re-mount RAM DIMM / Replace RAM DIMM
Replace the CU Board
020
CU ROM Hash Check Error
Power OFF/ON.
Replace the CU PCB
030
CU Resident RAM Check Error
Power OFF/ON.
CU PCB replacement
031
CU Optional RAM Check Error. Is installation of the
RAM DIMM normal? Does the MFP recover from the
error when the RAMDIMM is replaced?
Re-mount RAM DIMM / Replace RAM DIMM
Replace the CU Board
040
CU EEPROM Error
Re-mount RAM DIMM / Replace RAM DIMM
Replace the CU Board
041
CU FLASH Error
CU PCB FLASH ROM Error
Replace the CU Board
042
File Flash System Error, CU PCB FLASH ROM Error.
Failure to access to the Flash ROM that is directly
soldered to the CU PCB.
Replace the CU Board
051
CU Fan Error, CPU cooling fan error on CU PCB. Is the
CU fan connector connected normally? Does the MFP
recover from the error when the fan is replaced?
Re-connect fan. Replace fan. Replace TBM PCB.
054
Communication error between the Controller and the
Scanner Unit is detected.
If the MFP does not recover even when the power is
turned OFF and back ON, check the connection between
the Scanner and Printer.
055
Scanner unit not detected. The CU FW has detected
that the Scanner Unit cannot be recognized though it
had been recognized when the power was turned ON.
If the MFP does not recover even when the power is
turned OFF and back ON, check the connection between
the Scanner and Printer.
056
Hard disk drive is not installed. Does the MFP recover
to normal operation after hard disk is installed and the
power is turned OFF once and back ON?
Replace Hard Disk Drive.
Replace CU PCB
057
Scanner command communication timeout
Replace Scanner Main PCB
Replace CU PCB
058
Internal error is detected in the scanner controller.
Replace Scanner Main PCB
070
Postscript core error. Error is detected inside the
postscript core.
