Sub thermistor fusing section high
temperature (TH_US).
Fuser low temperature (TH_UM_AD2)
Fuser low temperature (TH_LM)
Sub thermistor fusing section low
temperature (TH_US)
Thermistor input circuit trouble (TH_UM)
5 continuous (POD1 not reach) jams
Fuser low temperature recovery error
(TH_UM_AD2)
Fuser low temperature recovery error
(TH_LM)
Transfer unit lift trouble
Transfer belt motor trouble
Fusing pressure release trouble
Paper exit cooling fan trouble
Power source cooling fan 1 trouble
Fusing cooling fan trouble
Toner cooling fan trouble (Toner cooling
fan 1 or 2)
Ozone exhaust fan trouble
Polygon motor trouble (LSU)
MFP PWB/LSU mother board
communication trouble
Personal counter not installed
MFP EEPROM read/write error
Erroneous detection of account
management data
MFP PWB EEPROM check sum error.
Serial number discrepancy (MFP – PCU)
SD card system storage data error
HDD system storage data area error
Machine adjustment data (system storage
area) error
HDD user authentication data sum error
SCU PWB EEPROM read/write error.
SCU PWB EEPROM check sum error.
PCU PWB EEPROM read/write error.
PCU PWB EEPROM check sum error
Document feeder unit communication
trouble
Document feeder unit fan trouble
Document feeder tray lift up trouble
Document feeder tray lift down trouble
PCU-Desk communication trouble
Desk Unit Tray 1 lift motor trouble
Desk Unit Tray 2 lift motor trouble
Desk transport motor trouble