Incompatible DSK Boot and program
firmware version
UI data & CPU firmware inconsistency.
Firmware & EEPROM conflict (MFP)
Firmware & EEPROM conflict (PCU)
Firmware & EEPROM conflict (SCU)
Network communication error
Network card is not installed or defective
FTP or Mail server is not found
Specified server does not correspond
during transmission
Invalid account/password (FTP server)
Invalid directory entered (FTP server)
Specified mail server (POP3) is not found
Invalid server account or password
Specified mail server (POP3) suspends
response
Shading trouble (Black correction).
Shading trouble (White correction).
CCD-ASIC communication error.
LSU laser detection error (Black).
LSU LD deterioration trouble.
LSU control ASIC connection error.
Firmware & PWB combination error
MFP combination error (Firmware/PWB)
MFP-PCU combination error
MFP-SCU combination error
MFP EEPROM sum check error
MFP-SCU communication trouble.
MFP-PCU communication trouble.
Fax reception image data error
Copy, Image send, Filing, Print image data
process error.
Image file data process error (when
importing filing data).
MFP PWB DIMM memory check error.
Auto DV adjustment trouble (over toned).
Auto DV adjustment trouble (under toned).
Finisher - PCU PWB communication error
Finisher paper exit roller lifting trouble
Finisher paper exit tray lift trouble
Finisher alignment operation trouble F
Finisher alignment operation trouble R
Finisher cooling fan motor abnormality
Finisher data backup RAM error.
Finisher incompatibility trouble.
Paper exit option configuration error
Process temperature sensor trouble
Toner density sensor trouble
Temperature/humidity sensor trouble
Toner supply operation trouble
Improper toner cartridge detection
Toner cartridge CRUM error
Paper feed tray 1 lift up trouble
Paper feed tray 2 lift up trouble
Paper feed tray 3 lift up trouble
Paper feed tray 4 lift up trouble
MFP-Fax communication trouble
Fax EEPROM read/write error.
Fax modem operation trouble.
LIU & Fax soft switch error (combination)
Access error to 1-chip on Fax board.
Fax PWB compatibility trouble.
Improper Fax & Destination information.
Thermistor open trouble (TH_UM)
Thermistor open trouble (TH_US)