Code :

Code: F1-45
Description: Saddle staple trouble
Abnormality of the staple unit drive motor in the saddle section.
Causes: Saddle staple motor trouble. Finisher control PWB trouble. Home position sensor trouble. Harness and connector connection trouble.
Remedy: Use SIM3-3 to check the operation of the saddle staple motor. Check connection from the control PWB to the motor. Turn OFF/ON the power. Replace the control PWB. Replace the sensor.

Code: F1-47
Description: Saddle paper transport motor trouble
Abnormality in the drive roller oscillation motor in the finisher saddle transport section.
Causes: Saddle paper transport motor trouble. Finisher control PWB trouble. Harness and connector connection trouble. Fuse blown (24V line).
Remedy: Use SIM3-3 to check the operation of the saddle paper transport motor. Check connection from the control PWB to the motor. Replace the control PWB. Replace the sensor.

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: F2-31
Description: Image density sensor trouble (OPC drum surface reflection ratio abnormality)
Causes: Before execution of the process control, a document is scanned by the image density sensor and the sensor gain is adjusted so that the output is at a fixed level. Though, however, the sensor gain is changed, the output does not become a fixed level. Image density sensor trouble Connection trouble of the harness between the PCU PWB and the image density sensor Image density sensor dirt
Remedy: Use SIM44-2 to execute the gain adjustment of the process control sensor. When there are some troubles, "Error" is displayed. Check the sensor and the harness at that time.

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 harness and the connector. Replace the PCU PWB.

Code: F2-40
Description: Toner density sensor trouble
Causes: Toner density sensor output abnormality (Sample level 25 or less, or 201 or above) Connection trouble of the connector and the harness. Developing unit trouble. PCU PWB trouble.
Remedy: Replace the toner density sensor. Check connection of the connector and the harness. Replace the developing unit. Replace the PCU PWB.

Code: F2-58
Description: Process humidity sensor trouble
Causes: Process humidity sensor trouble. Harness and connector connection trouble. PCU PWB trouble.
Remedy: Replace the process humidity sensor. Check connection of the connectors and the harness. Replace the PCU PWB.

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