• Code: F0-72
• Description: Folding unit backup RAM trouble Data cannot be written into the backup RAM of the folding unit. The red values are abnormal
• Causes: Folding unit control PWB trouble, EEPROM chip breakdown
• Remedy: Replace the folding unit control PWB.

• Code: F0-73
• Description: Folding unit power fan abnormality Cooling fan abnormality in the power unit section of the folding unit
• Causes: Motor lock, motor harness short/open, control PWB trouble, disconnection of harness or connector.
• Remedy: Check connection from the control PWB to the fan motor. Replace the control PWB. Replace the fan motor.

• Code: F0-74
• Description: Folding unit folding tray paper exit motor section abnormality (FLM14) The paper exit operation to the folding unit is abnormal.
• Causes: Motor lock, control PWB trouble, disconnection of harness or connector, HP sensor breakdown.
• Remedy: Use SIM3-3 to check the operation of the folding unit folding tray paper exit motor. Check connection from the control PWB to the motor and the sensor. Replace the control PWB, the motor, and the sensor part.

• Code: F0-75
• Description: Folding unit upper stopper motor section abnormality (FLM8) The operation of the upper stopper of the folding unit is abnormal.
• Causes: Motor lock, control PWB trouble, disconnection of harness or connector, HP sensor breakdown.
• Remedy: Use SIM3-3 to check the operation of the folding unit upper stopper motor. Check connection from the control PWB to the motor and the sensor. Replace the control PWB, the motor, and the sensor part.

• Code: F0-76
• Description: 3-fold stopper motor section in the folding unit is abnormal (FLM9) The operation of the 3-fold stopper in the folding unit is abnormal.
• Causes: Motor lock, control PWB trouble, disconnection of harness or connector, HP sensor breakdown.
• Remedy: Use SIM3-41 to check the operation of the 3-fold stopper motor in the folding unit. Check connection from the control PWB to the motor and the sensor. Replace the control PWB, the motor, and the sensor part.

• Code: F0-77
• Description: Folding unit transport motor section abnormality (FLM11) The folding and transport operations of the folding unit are abnormal.
• Causes: Motor lock, control PWB trouble, disconnection of harness or connector.
• Remedy: Use SIM3-41 to check the operation of the folding unit transport motor. Check connection from the control PWB to the motor and the sensor. Replace the control PWB, the motor, and the sensor part.

• Code: F0-80
• Description: Finisher power cooling fan motor abnormality (FNFAN101) The operation of the cooling fan in the power unit section of the finisher is abnormal.
• Causes: Motor lock, motor harness short/open, control PWB trouble, disconnection of harness or connector.
• Remedy: Check connection from the control PWB to the fan motor. Replace the control PWB. Replace the fan motor.

• Code: F0-81
• Description: Finisher upper tray fan abnormality (FNFAN103) The operation of the cooling fan in the upper tray of the finisher is abnormal.
• Causes: Motor lock, motor harness short/open, control PWB trouble, disconnection of harness or connector.
• Remedy: Use SIM3-3 to check the operation of the upper tray fan. Check connection from the control PWB to the fan motor. Replace the control PWB. Replace the fan motor.