Description: An engine EEPROM read/write error was detected.
Remedy: Does the error occur again? Yes Turn off and on the printer Replace the CU/ PU board.
Code: 106
Display: SERVICE CALL 106:ERROR
Description: Engine control logic error
Remedy: Does the error occur again? Yes Turn off and on the printer Replace the CU/ PU board.
Code: 112
Display: SERVICE CALL 112:ERROR
Description: The 2nd tray for a model different from the printer was detected.
Remedy: Is the 2nd tray for the printer installed? No Install proper 2nd tray.
Code: 121
Display: SERVICE CALL 121:ERROR
Description: High-voltage power supply interface error
Remedy: Is the cable between the CU/ PU board and the high-voltage power unit connected properly? Is a contact faulty? Reconnect it properly. Check the highvoltage line for no poor connection. Replace the highvoltage power supply.
Code: 122
Display: SERVICE CALL 122:ERROR
Description: Rear-fan error
Remedy: Does the fan at the rear of the printer operate? Is the connector of the fan connected properly? Be sure of the connection of the fan. Replace the CU/ PU board. Connect the fan properly. Replace the CU/ PU board.
Code: 123
Display: SERVICE CALL 123:ERROR
Description: Ambient humidity error or non connection of humidity sensor
Remedy: Is the cable from the CU/PU board to the toner sensor board connected properly? Re-connect it properly. Replace the toner sensor board.