Code :

Code: F2-05
Description: Toner cartridge CRUM error (K2)
Causes: CRUM cannot be read or written.
Remedy: Case 1 Cause Connection trouble or disconnection of the connector and the harness between the PCU and the toner cartridge. Check and remedy Check the connector and the harness between the PCU and the toner cartridge. Case 2 Cause CRUM trouble Check and remedy Replace the toner cartridge. Case 3 Cause PCU PWB trouble Check and remedy Replace the PCU PWB.

Code: F2-39
Description: Process thermistor trouble
Causes: Process thermistor open
Remedy: Case 1 Cause Process thermistor harness connection trouble Check and remedy Check the connection of the harness and connector of the process thermistor. Case 2 Cause Process thermistor trouble Check and remedy Check the connection of the harness and connector of the process thermistor. Case 3 Cause PCU PWB trouble Check and remedy Check the PCU PWB.

Code: F2-40
Description: Toner empty sensor abnormality (K)
Causes: Toner empty sensor output abnormality. Sample level 25 or less or 231 or above.
Remedy: Case 1 Cause The connector is not installed. Check and remedy Check the connection of the connector harness to the PCU PWB. Check the connection of the toner empty sensor. Case 2 Cause Connector harness trouble Check and remedy Check the harness disconnection. Case 3 Cause Cartridge trouble Check and remedy Check the cartridge connection.

Code: F2-41
Description: Toner empty sensor abnormality (C)
Causes: Toner empty sensor output abnormality. Sample level 25 or less or 231 or above.
Remedy: Case 1 Cause The connector is not installed. Check and remedy Check the connection of the connector harness to the PCU PWB. Check the connection of the toner empty sensor. Case 2 Cause Connector harness trouble Check and remedy Check the harness disconnection. Case 3 Cause Cartridge trouble Check and remedy Check the cartridge connection.

Code: F2-42
Description: Toner empty sensor abnormality (M)
Causes: Toner empty sensor output abnormality. Sample level 25 or less or 231 or above.
Remedy: Case 1 Cause The connector is not installed. Check and remedy Check the connection of the connector harness to the PCU PWB. Check the connection of the toner empty sensor. Case 2 Cause Connector harness trouble Check and remedy Check the harness disconnection. Case 3 Cause Cartridge trouble Check and remedy Check the cartridge connection.

Code: F2-43
Description: Toner empty sensor abnormality (Y)
Causes: Toner empty sensor output abnormality. Sample level 25 or less or 231 or above.
Remedy: Case 1 Cause The connector is not installed. Check and remedy Check the connection of the connector harness to the PCU PWB. Check the connection of the toner empty sensor. Case 2 Cause Connector harness trouble Check and remedy Check the harness disconnection. Case 3 Cause Cartridge trouble Check and remedy Check the cartridge connection.

Code: F2-44
Description: Black exclusive image density sensor trouble (Transfer belt surface reflection ratio abnormality)
Causes: Image density sensor trouble, harness connection trouble between PCU PWB and the image density sensor, image density sensor dirt, transfer belt cleaning trouble, calibration plate solenoid operation trouble
Remedy: Use SIM44-2 to execute the process control sensor gain adjustment. If "ERROR" is displayed, check the sensor, the harness and the calibration plate solenoid operation for any trouble. If the adjustment is completed, check the transfer belt surface state.