• Code: F0-65
• Description: Stacker first series stack tray abnormality
  Stack tray lift motor abnormality, tray DC motor encoder sensor abnormality, tray limit switch (upper limit, lower limit) operation trouble, tray position sensor abnormality
• Causes: Abnormal operation of the stack tray lift motor Abnormality of the tray DC motor encoder sensor for detecting the motor rotation Tray limit switch (upper limit, lower limit) operation Stack tray home sensor abnormality, stack tray 25% load position sensor abnormality, stack tray 50% load position sensor abnormality, stack tray 75% load position sensor abnormality, stack tray 100% load position sensor abnormality, stack tray extendable position sensor abnormality Control PWB trouble, disconnection of connector trouble, motor trouble, sensor trouble
• Remedy: Use SIM03-61 to check the operation of the stack tray lift motor. Use SIM03-60 to check the tray DC motor encoder sensor signal. Use SIM03-60 to check the operation of the tray limit switch (upper limit, lower limit). Use SIM03-60 to check each tray position sensor signal and to check that two or more sensors are not simultaneously ON. Replace the control PWB. Check connection of the connector and harness from the control PWB to the stack tray lift motor. Check connection of the connector and harness from the control PWB to the tray DC motor encoder sensor. Check connection of the connector and harness from the control PWB to the tray limit switch (upper limit, lower limit). Check connection of the connector and harness from the control PWB to each tray position sensor.

• Code: F0-70
• Description: Communication trouble between the finisher and the folding unit
  Communication trouble between the finisher and the folding unit. No response for a command from the folding unit.
• Causes: Noise on the communication line, control PWB trouble, disconnection of connector or harness.
• Remedy: Turn OFF/ON the power. Check connection between the finisher and the folding unit. Replace the control PWB of the folding unit.

• Code: F0-71
• Description: Folding unit lead edge holding guide motor section abnormality (FLM10)
  The operations of the folding unit lead edge holding guide 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 lead edge holding guide motor. Check connection from the control PWB to the motor and the sensor. Replace the control PWB, the motor, and the sensor part.

• Code: F0-72
• 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.