Code :

Code: F2-70
Description: Improper toner cartridge detection
Causes: An improper toner cartridge is inserted. (The main unit detects a toner cartridge of a different specification.) Toner cartridge trouble. PCU PWB trouble.
Remedy: Replace the toner cartridge. Replace the PCU PWB.

Code: F2-74
Description: Toner cartridge CRUM error
Causes: Toner cartridge (CRUM) trouble. PCU PWB trouble. Connector and harness trouble between PCU PWB and toner cartridge
Remedy: Replace the toner cartridge. Replace the PCU PWB. Check the connector and the harness between the PCU PWB and the toner cartridge.

Code: F3-12
Description: Paper feed tray 1 lift operation trouble
C1LUD is not turned ON within the specified time
Causes: C1LUD is not turned ON within the specified time. C1LUD sensor trouble. Paper feed tray 1 lift unit trouble. PCU PWB trouble. Sensor harness and connector connection trouble
Remedy: Check connection of the harness and the connector of C1LUD. Replace the lift-up unit. Replace the PCU PWB.

Code: F3-22
Description: Paper feed tray 2 lift operation trouble
C2LUD does not turn ON within the specified time.
Causes: C2LUD does not turn ON within the specified time. C2LUD sensor trouble. Paper feed tray 2 lift unit trouble. PCU PWB trouble. Sensor harness and connector connection trouble
Remedy: Check the harness and the connector of C2LUD. Replace the lift-up unit. Replace the PCU PWB.

Code: F3-32
Description: Paper feed tray 3 lift operation trouble
C3LUD does not turn ON within the specified time.
Causes: C3LUD does not turn ON within the specified time. C3LUD sensor trouble. Paper feed tray 3 lift unit trouble. PCU PWB trouble. Sensor harness and connector connection trouble
Remedy: Check the harness and the connector of C3LUD. Replace the lift-up unit. Replace the PCU PWB.

Code: F3-42
Description: Paper feed tray 4 lift operation trouble
C4LUD does not turn ON within the specified time.
Causes: C4LUD does not turn ON within the specified time. C4LUD sensor trouble. Paper feed tray 4 lift unit trouble. PCU PWB trouble. Sensor harness and connector connection trouble
Remedy: Check the harness and the connector of C4LUD. Replace the lift-up unit. Replace the PCU PWB.

Code: F6-00
Description: MFPC PWB - FAX communication trouble
Causes: FAX control PWB trouble. FAX control PWB - MFPC PWB connector and harness trouble
Remedy: Case 1 Cause FAX control PWB trouble. Check and Remedy Replace the FAX control PWB. Case 2 Cause FAX control PWB - MFPC PWB connector and harness trouble Check and Remedy Check the connector and the harness between the FAX control PWB and the MFPC PWB. Case 3 Cause FAX control PWB - Mother board connector and harness trouble Check and Remedy Check the connector and the harness between the FAX control PWB and the mother board. Case 4 Cause FAX control PWB ROM trouble / ROM pin breakage Check and Remedy Check the ROM of the FAX control PWB.

Code: F6-01
Description: FAX control PWB EEPROM read/write error
FAX control PWB EEPROM access error (Read and write)
Causes: FAX control PWB EEPROM trouble FAX control PWB EEPROM access circuit trouble
Remedy: Case 1 Cause FAX control PWB EEPROM trouble Check and Remedy Check that no trouble occurs after replacement of EEPROM. Execute the memory check of SIM66-3 to insure that EEPROM can be accessed. Case 2 Cause FAX control PWB EEPROM access circuit trouble Check and Remedy Replace the FAX control PWB.