• Code: F2-91
• Description: High density process control high voltage error (K)
  For the production process (Not occur in the market.)
• Causes: PCU
• Remedy:

• Code: F2-92
• Description: High density process control high voltage error (C)
  For the production process (Not occur in the market.)
• Causes: PCU
• Remedy:

• Code: F2-93
• Description: High density process control high voltage error (M)
  For the production process (Not occur in the market.)
• Causes: PCU
• Remedy:

• Code: F2-94
• Description: High density process control high voltage error (Y)
  For the production process (Not occur in the market.)
• Causes: PCU
• Remedy:

• Code: F3-12
• Description: Paper feed tray 1 lift operation trouble
• Causes: LUD1 is not turned ON within the specified time. CLUD1 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 LUD1. Replace the lift-up unit. Replace the PCU PWB.

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

• Code: F6-00
• Description: MFPC PWB - FAX communication trouble
  MFP - FAX communication establishment error / Framing / Parity / Protocol error
• Causes: FAX control PWB trouble. FAX control PWB - MFPC PWB connector and harness trouble FAX control PWB - Mother board connector and harness trouble FAX control PWB ROM trouble / ROM pin breakage
• 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.