Code :

Code: F3-22
Description: Paper feed tray 2 lift operation trouble
Causes: LUD2 does not turn ON within the specified time. CLUD2 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 LUD2. Replace the lift unit. Replace the PCU PWB.

Code: F3-32
Description: Main body cassette 3 lift trouble
Causes: C3LUD sensor trouble. Cassette 3 lift motor trouble. Harness connection trouble between the PCU PWB, the lift unit, and the paper feed unit
Remedy: Check the harness and the connector of C3LUD. Check the lift unit.

Code: F3-42
Description: Main body cassette 4 lift trouble
Causes: C4LUD sensor trouble. Cassette 4 lift motor trouble. Harness connection trouble between the PCU PWB, the lift unit, and the paper feed unit
Remedy: Check the harness and the connector of C4LUD. Check the lift unit.

Code: F6-00
Description: MFPC PWB - FAX communication trouble
Causes: MFP - FAX communication establishment error / Framing / Parity / Protocol error
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
Causes: FAX control PWB EEPROM access error (Read and write)
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.

Code: F6-04
Description: FAX MODEM operation trouble
Causes: FAX control PWB MODEM chip operation trouble
Remedy: Case 1 Cause FAX MODEM chip operation trouble. Check and remedy Replace the FAX control PWB. Case 2 Cause The FAX MODEM chip cannot be accessed. Check and Remedy Replace the FAX control PWB.

Code: F6-21
Description: Improper combination of TEL/LIU PWB and FAX soft switch
Causes: Incompatibility between the TEL/LIU PWB and the FAX control PWB information (soft switch)
Remedy: Case 1 Cause The destination of the TEL/LIU PWB installed is improper. Check and Remedy Check the destination of the TEL/LIU PWB. Case 2 Cause TEL/LIU PWB trouble. Check and Remedy Replace the TEL/LIU PWB.

Code: F6-30
Description: FAX 1-chip microprocessor access error (FAX detection)
Causes: FAX 1-chip microprocessor access error (Read and write)
Remedy: Case 1 Cause Program writing trouble to the 1-chip microprocessor, or no program data written. Check and Remedy Use SIM66-42 to rewrite the 1-chip microprocessor program. Case 2 Cause FAX 1-chip microprocessor circuit trouble. Check and Remedy Replace the FAX control PWB.