Code :

Code: F1-29
Description: Finisher cooling fan motor abnormality
Finisher cooling fan motor abnormality
Causes: Motor lock Motor harness short/open. Finisher control PWB trouble. Harness/connector connection trouble.
Remedy: Use SIM3-3 to check the operation of the finisher cooling fan (FCF). Check connection from the finisher control PWB to the motor. Replace the finisher control PWB. Replace the fan motor.

Code: F1-37
Description: Finisher data backup RAM error
Causes: Finisher control PWB trouble. Malfunction due to noises
Remedy: Replace the finisher control PWB. Readjust the finisher. (Use SIM3-10, Finisher control PWB DIP SW adjustment.)

Code: F1-50
Description: Main unit - Finisher combination error
Causes: The finisher which is not supported by the main unit model is installed. Finisher control PWB trouble.
Remedy: Install a proper finisher. Replace the finisher control PWB.

Code: F2-39
Description: Process thermistor trouble
Causes: Process thermistor trouble. Process thermistor harness connection trouble. PCU PWB trouble.
Remedy: Replace the process thermistor. Check connection of the process thermistor harness and the connector. Replace the PCU PWB.

Code: F2-40
Description: Toner density sensor trouble
Causes: Toner density sensor output abnormality. Sensor connector and harness connection trouble. Developing unit trouble. PCU PWB trouble.
Remedy: Replace the toner density sensor. Check connection of the sensor connector and the harness. Replace the developing unit. Replace the PCU PWB.

Code: F2-58
Description: Temperature/humidity sensor trouble (HUD_M/TH_M)
Causes: Temperature/humidity sensor trouble. Process humidity sensor harness and connector connection trouble PCU PWB trouble.
Remedy: Replace the temperature/humidity sensor. Check connection of the temperature/humidity sensor harness and the connector. Replace the PCU PWB.

Code: F2-64
Description: Toner supply operation trouble
Causes: Toner motor trouble. Toner density sensor trouble. Connector/harness trouble. PCU PWB trouble. Toner cartridge trouble. Developing unit trouble. Toner transport pipe section trouble
Remedy: Replace the toner motor. Replace the toner density sensor. Connector and harness check. Replace the PCU PWB. Replace the toner cartridge. Replace the developing unit. Check the toner transport pipe section.