Code :

Code: F3-42
Description: Machine cassette 4 lift-up trouble. LUD4 is not turned ON within the specified time.
Causes: LUD4 sensor trouble. Cassette 4 lift-up motor trouble. Harness connection trouble of PCU PWB, the lift-up motor, and the paper feed unit
Remedy: Check LUD4 and the harness and the connector. Check the lift-up unit.

Code: F4-38
Description: 38 (V) voltage trouble. 38V voltage fall or 38V disconnected.
Causes: Connection failure or disconnection of the connector and the harness. PCU PWB trouble. Power unit trouble, or blown fuse. HL PWB trouble. (relay)
Remedy: Check the connector and the harness of the power line. Check the power voltage of 38V in the power unit and the PCU PWB. Check for blown fuse in the power unit. (Main power: F208)

Code: F5-10
Description: Lamp thermistor open detection trouble (SCU detection). The thermistor open is detected.
Causes: Thermistor abnormality, thermistor related harness and circuit trouble.
Remedy: Check the thermistor related circuits (Thermistor PWB, SCNCNT PWB) and their harness and the connector.

Code: F5-12
Description: Lamp thermistor abnormality detection (SCU detection). An abnormal temperature is detected.
Causes: Thermistor abnormality, thermistor related harness and circuit trouble, fan filter clogging.
Remedy: Check the thermistor related circuits (thermistor PWB, SCNCNT PWB) and their harness and the connector.

Code: F6-00
Description: Communication trouble between the MFP and the FAX (MFP detection). Communication establishment error, framing error, parity error, protocol error
Causes: FAX unit PWB connector connection trouble. FAX unit PWB - ICU PWB harness trouble. FAX unit PWB mother board connector pin breakage. FAX unit ROM trouble / No ROM/ Reverse insertion of ROM/ROM pin breakage.
Remedy: Check connection of the connector and the harness between the FAX unit PWB and the ICU PWB. Check grounding of the machine. Check the ROM of the FAX unit PWB.

Code: F6-01
Description: FAX PWB EEPROM read / write error. Access error to EEPROM (read / write)
Causes: EEPROM trouble. FAX PWB EEPROM access circuit trouble.
Remedy: Check that no trouble occurs after replacement of the EEPROM. Check that access can be normally made with Sim. 66-3 Memory check. If the PWB is replaced, the adjustment is not required.

Code: F6-04
Description: FAX MODEM operation abnormality. FAX PWB MODEM chip operation trouble
Causes: FAX PWB MODEM chip operation trouble. The MODEM chip in the FAX PWB cannot be accessed.
Remedy: Replace the MODEM chip in the FAX PWB. Replace the FAX PWB.

Code: F6-21
Description: Combination error of the TEL / LIU PWB and the FAX soft switch
Causes: The destination of the TEL / LIU PWB which is installed differs. The FAX PWB information (soft switch) differs. The TEL / LIU PWB abnormality.
Remedy: Check the destination of the TEL / LIU PWB. Check the FAX PWB information (soft switch). Replace the TEL / LIU PWB.