Causes: Finisher Side Registration Home Position Sensor does not turn Off/On within a predetermined time.
Code: E7-51
Description: Finisher Delivery Motor
Causes: 1. Delivery Belt Home Position Sensor is defective. 2. Wiring between the Finisher Controller PCB and the delivery motor is abnormal. 3. Stack Delivery Roller is abnormal. 4. Delivery Motor is defective. 5. PCB is defective.
Code: E7-52
Description: Finisher Paddle Motor
Causes: 1. Paddle Home Position Sensor is defective. 2. Swing Guide Home Position Sensor is defective. 3. Wiring between the Finisher Controller PCB, and the Paddle Motor is abnormal. 4. Paddle, Swing Guide Assembly is abnormal. Try turning the Paddle Motor clockwise and counterclockwise by hand. Is there mechanical tapping in the rotation of the Paddle or the up/down movement of the swing guide? Correct the mechanical mechanism. 5. Finisher Controller PCB is defective.
Code: E7-53
Description: Finisher Saddle Folding Sensor
Causes: 1. Saddle Folding Sensor is defective. 2. Finisher PCB is defective.
Code: E7-54
Description: Finisher Punch Communication
Causes: 1. Finisher PCB is defective. 2. Punch PCB is defective.