Description: Error in engine EEPROM check total detected at power ON.
Remedy: Does error reoccur? Replace engine control board (K7N).
Code: 105
Display: Service Call 105: Error
Description: EEPROM not detected at power ON.
Remedy: Does EEPROM exist? Does error reoccur? Check for EEPROM and set if not found. Replace engine control board (K7N).
Code: 106
Display: Service Call 106: Error
Description: Error in engine control logic detected at power ON.
Remedy: Does error reoccur? Replace engine control board (K7N).
Code: 107
Display: Service Call 107: Error
Description: Engine ROM check sum error.
Remedy: Does error reoccur? Is error recovered by reloading PU F/W? Reload PU I/F. Replace engine control board (K7N).
Code: 110 ... 116
Display: Service Call 110: Error ~ 116: Error
Description: Option unit for different model detected. 110: EnvelopeFeeder 111: Duplex unit 112: 2nd Tray 113: 3rd Tray 114: 4th Tray 115: 5th Tray 116: Finisher
Remedy: Is a proper option unit for the printer set? Set proper option unit. Check connections and turn power ON. If error is not recovered, replace the unit.
Code: 120
Display: Service Call 120: Error
Description: PU unit fan motor error.
Remedy: 1) Is fan in PU unit operating? 2) Error reoccurs after replacing fan motor. Replace fan motor. Replace engine control board (K7N). Replace engine control board (K7N).