• Code: EE-EC
• Description: Automatic toner density adjustment error. The sampling level in the automatic toner density adjustment is outside of 128 +/-10.
• Causes: Toner density sensor trouble. Developing unit trouble. PCU PWB trouble.
• Remedy: Replace the toner density sensor. Replace the developing unit. Replace the PCU PWB.

• Code: EE-EL
• Description: Automatic toner density adjustment error (Over toner). The sampling level in the automatic toner density adjustment is 76 or less or the control voltage is 208 or above.
• Causes: Toner density sensor trouble. Developing unit trouble. PCU PWB trouble
• Remedy: Replace the toner density sensor. Replace the developing unit. Replace the PCU PWB.

• Code: EE-EU
• Description: Automatic toner density adjustment error (Under toner). The sampling level in the automatic toner density adjustment is 178 or above or the control voltage is 51 or less.
• Causes: Toner density sensor trouble. Developing unit trouble. PCU PWB trouble
• Remedy: Replace the toner density sensor. Replace the developing unit. Replace the PCU PWB.

• Code: F0-03
• Description: Finisher paper exit roller lift motor section abnormality (FNM110). Finisher paper exit roller lifting operation abnormality
• Causes: Motor lock, control PWB trouble, disconnection of harness or connector, HP sensor breakdown.
• Remedy: Use SIM3-3 to check the operation of the paper exit roller lift motor. Check connection from the control PWB to the motor and the sensor. Replace the control PWB, the motor, and the sensor part.

• Code: F0-08
• Description: Finisher stapler shift motor section abnormality (FNM107). The shift operation of the finisher stapler 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 stapler shift motor. Check connection from the control PWB to the motor and the sensor. Replace the control PWB, the motor, and the sensor part.

• Code: F0-10
• Description: Finisher staple motor section abnormality (FNM115). The operation of the finisher staple 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 staple motor. Check connection from the control PWB to the motor and the sensor. Replace the control PWB, the motor, and the sensor part.

• Code: F0-11
• Description: Finisher bundle exit motor section abnormality (FNM116). The grip expansion arm drive motor of the finisher for staple bundle exit is abnormal. HP sensor abnormality
• Causes: Motor lock, motor harness short/open, control PWB trouble, HP sensor breakdown, disconnection of harness or connector.
• Remedy: Use SIM3-3 to check the operation of the gripper arm motor (FNM116). Check connection from the control PWB to the motor. Replace the control PWB and the sensor part.

• Code: F0-14
• Description: Finisher paper rear edge falling motor section abnormality (FNM113). The rear edge falling operation in the staple compiler of the finisher 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 rear edge falling motor. Check connection from the control PWB to the motor and the sensor. Replace the control PWB, the motor, and the sensor part.