Description: Paper position sensor slide motor error The paper position sensor moves but is not detected at the home position within the specified time. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
Causes: • Motor harness disconnected, loose, defective • Defective motor
Remedy: 1. Check the connections to the paper position sensor slide motor. 2. Defective paper position sensor slide motor.
Code: 770
Description: Shift motor error The shift motor HP sensor does not detect any change for 1.86 seconds after the shift motor has turned on at power on or during its operation.
Causes: • Defective shift motor • Defective shift motor HP sensor
Remedy: 1. Check the connections to the shift motor and the shift motor HP sensor. 2. Defective shift motor or the shift motor HP sensor.
Code: 791
Description: Bridge unit error The machine recognizes the finisher, but does not recognize the bridge unit.
Causes: • Defective connector • Broken harness
Remedy: 1. Check the connections between the bridge unit and the machine. 2. Install a new bridge unit.
Code: 792
Description: Finisher error The machine does not recognize the finisher, but recognizes the bridge unit.
Remedy: Check the harness. 1. Check for blockage around the upper limit switch. 2. Replace the upper limit switch.
Code: 798-2
Description: Finisher jogger motor error The jogger fences move out of the home position but the HP sensor output does not change within the specified number of pulses. The 1st failure issues an original jam message, and the 2nd failure issues this SC code.
Causes: • Jogger HP sensor disconnected, defective • Jogger motor disconnected, defective • Jogger motor overloaded due to obstruction • Finisher main board and jogger motor
Remedy: 1. Check or replace the harness. 2. Check for blockages in the jogger motor mechanism. 3. Replace the jogger HP sensor. 4. Replace the jogger motor. 5. Replace the finisher main board.
Code: 798-3
Description: Rear fence motor error The rear jogger fence motor in the finisher is not operating.
Causes: • Rear jogger motor drive is obstructed (jammed paper, paper scraps, etc.) • The rear jogger fence motor harness loose or broken • Rear jogger fence HP sensor dirty, loose, defective • Rear jogger fence motor defective
Remedy: 1. Check or replace the harness. 2. Check for blockages in the rear jogger motor drive mechanism. 3. Replace the rear jogger fence HP sensor. 4. Replace the rear jogger fence motor.
Code: 798-4
Description: Stack feed-out motor error The stack feed-out HP sensor does not detect the home position of the stack feedout belt for a certain time after the stack feed-out belt has moved to its home position. The stack feed-out HP sensor does not turn off for a certain time after the stack feedout belt has moved from its home position. The 1st detection failure causes a jam error, and the 2nd failure causes this SC code.
Causes: • Defective stack feed-out HP sensor • Overload on the stack feed-out motor • Defective stack feed-out motor • Defective main board • Disconnected or defective harness
Remedy: 1. Check or replace the harness. 2. Check for blockages in the stack feed-out mechanism. 3. Replace the stack feed-out HP sensor. 4. Replace the stack feed-out motor. 5. Replace the main board.