• Code: C0F02
• Description: Original Size Detecting Board malfunction
  Either the Original Size Detecting Board is faulty or an error occurs in communications with the Master Board. <During a copy cycle> A fixed-cycle pulse signal (Busy) remains HIGH or LOW for 0.5 sec. or more. <When the Power Switch is turned ON> A fixed-cycle pulse signal (Busy) remains HIGH or LOW for 5 sec. or more.
• Remedy: 1 J1 and J2 jumper connections on the Original Size Detecting Board are correct. NO Change jumper connector positions. 2 CN1 on the Original Size Detecting Board and PJ24A on the Master Board are connected. NO Connect. 3 The voltage across PJ24A-6 on the Master Board and GND varies in the range between DC0V and DC5V after the Power Switch has been turned ON. YES Change Master Board. NO Change Original Size Detecting Board.

• Code: C0F30
• Description: ATDC Sensor malfunction
  The output from the ATDC Sensor remains less than 0.5V, or 4.5V or more, for a continuous 2-sec. period at any time 2 sec. after the Upper Drive Motor has started turning.
• Remedy: 1 PJ10 and CN39 connectors on the Master Board are properly connected NO Connect. 2 ATDC Sensor operation: the voltage across PJ10A-6 on the Master Board and GND varies in the range between DC0.5V and DC4.5V while the Upper Drive Motor is energized. YES Change Master Board. NO Change ATDC Sensor.

• Code: C0F31
• Description: ATDC Sensor adjustment failure
  The ATDC Sensor output does not fall within the target range (2.46 to 2.57V) in the F8 mode.
• Remedy: 1 PJ10 and CN39 connectors on the Master Board are properly connected NO Connect. 2 ATDC Sensor operation: the voltage across PJ10A-6 on the Master Board and GND varies in the range between DC0.5V and DC4.5V while the Upper Drive Motor is energized. YES Change Master Board. NO Change ATDC Sensor.

• Code: C0F79
• Description: • 3rd Drawer Paper Empty Sensor failure • Main Tray Paper Empty Board failure • Shift Tray Paper Empty Sensor failure
• Remedy: 1 3rd Drawer Paper Empty Sensor operation: the voltage across PJ8A-2B on the Master Board and GND is DC5V (sensor unblocked) and DC0V (sensor blocked). YES Change Master Board. NO Change sensor. 2 Main Tray Paper Empty Board operation: the voltage across PJ9A-2 on the Master Board and GND is DC5V (sensor unblocked) and DC0V (sensor blocked). YES Change Master Board. NO Change the Main Tray Paper Empty Board, Cabinet Transport Board, and flat cable. 3 Shift Tray Paper Empty Sensor operation: the voltage across PJ9A-9 on the Master Board and GND is DC5V (sensor unblocked) and DC0V (sensor blocked). YES Change Master Board. NO Change sensor, Cabinet Transport Board, and flat cable.

• Code: C0FE2
• Description: Original Size Detecting Sensor 2 failure
• Remedy: 1 J1 and J2 jumper connections on the Original Size Detecting Board are correct. NO Change jumper connector positions. 2 Mounting position of the Original Size Detecting Sensor that corresponds to the malfunction code is correct. YES Change the Original Size Detecting Sensor, Original Size Detecting Board, and Master Board. NO Correct mounting position.

• Code: C0FE4
• Description: Original Size Detecting Sensor 3 failure
• Remedy:

• Code: C0FE6
• Description: Original Size Detecting Sensors 2 and 3 failure
• Remedy:

• Code: C0FE8
• Description: Original Size Detecting Sensor 4 failure
• Remedy: