Remedy: Is the image drum unit installed properly? Does the error occur again? Is the SFP recovered by replacing the toner sensor board. Re-install it. Turn off and on the SFP. Be sure of the cable connection from the CU/PU board to the toner sensor board, and then replace the toner sensor board. Replace the CU/PU board.
Code: 163
Display: SERVICE CALL 163:ERROR
Description: Toner sensor detection error (163=K). This error does not occur with the SFP in the factory shipped configuration.
Remedy: Is the toner cartridge installed? Is the toner slide shutter set? Install the toner cartridge. Turn it to the fixed position. Turn off and on the SFP. Replace the toner sensor assembly.
Code: 170, 171
Display: SERVICE CALL 170:ERROR 171:ERROR
Description: A fuser thermistor short or open circuit was detected.
Remedy: Does the error occur again? Yes Turn off and on the SFP. Replace the fuser unit.
Code: 172, 173
Display: SERVICE CALL 172:ERROR 173:ERROR
Description: A fuser thermistor temperature error (high or low temperature) was detected.
Remedy: Does the error occur again? Turn off and on the SFP. Replace the fuser unit. Replace the lowvoltage power supply, and then replace the CU/PU board when the error occurs again.
Code: 182
Display: SERVICE CALL 182:ERROR
Description: Option unit I/F error
Remedy: Does the error occur again? Turn off and on the SFP. Be sure of connector connection. Replace the option unit.
Code: 190
Display: POWER OFF/ON 190:ERROR
Description: System memory overflow
Remedy: Does the error occur again? Yes Turn off and on the SFP. Replace the CU/PU board.