• Code: 153
• Display: SERVICE CALL 153:ERROR
• Description: Image drum unit fuse-cut error
• 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.

• Code: 203 ... 214
• Display: POWER OFF/ON 203:ERORR * 204:ERORR 207:ERORR 208:ERORR 213:ERORR 214:ERORR
• Description: CU program error (203 to 214 do not occur in general use of the SFP)
• Remedy: Invalid processing was performed with a CU program. Replace the CU/PU board.

• Code: 209
• Display: POWER OFF/ON 209:DOWNLOAD ERROR
• Description: Custom Media Type table downloading failure
• Remedy: Custom Media Type table downloading failed. Turn off and on the SFP, and then redownload it (In general use of the SFP, this downloading is not performed and this error does not occur).