Description: Finisher corner stapler rotation motor error The stapler does not return to its home position within the specified time after stapling. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
Causes: • Defective stapler rotation motor • Overload to the stapler rotation motor • Defective stapler rotation HP sensor
Remedy: 1. Replace the stapler rotation motor. 2. Replace the stapler rotation HP sensor.
Code: 742
Description: Finisher stapler movement motor error The 1st detection failure issues a jam error, and the 2nd failure issues this SC code. For the 3000-sheet finisher • Staple movement is not finished for a certain time. For the 1000-sheet booklet finisher • The stapler HP sensor is not activated within the specified time after the stapler motor turned on. (first detection: jam error, consecutive twice detection SC code).
Causes: • Motor overload • Loose connection of the stapler home position sensor • Loose connection of the stapler movement motor • Defective stapler home position sensor • Defective stapler movement motor
Remedy: 1. Check the connection of the stapler movement motor. 2. Check the connection of the stapler home position sensor. 3. Replace the stapler home position sensor. 4. Replace the stapler movement motor.
Code: 743
Description: Booklet stapler motor error 1 The 1st detection failure issues a jam error, and the 2nd failure issues this SC code. For the 3000-sheet finisher The front stapler unit saddle-stitch motor does not start operation within the specified time.
Causes: • Motor overload • Loose connection of the front stapler motor • Defective front stapler motor
Remedy: Replace the front stapler motor.
Code: 744
Description: Booklet staple motor error 2 The 1st detection failure issues a jam error, and the 2nd failure issues this SC code. For the 3000-sheet finisher The rear stapler unit saddle-stitch motor does not start operation within the specified time.
Causes: • Motor overload • Loose connection of the rear stapler motor • Defective rear stapler motor
Remedy: Replace the front stapler motor.
Code: 746
Description: 1000-sheet booklet finisher: Stack feed motor error • The stack feed HP sensor does not detect "ON" twice (once: jam error) for specified time after the stack feed motor has turned on. • The stack feed HP sensor does not detect "OFF" twice (once: jam error) for specified time after the stack feed motor has turned on.
Causes: • Motor overload • Loose connection of the stack feed motor • Defective stack feed motor
Remedy: 1. Check the connections and cables for the stack feed motor and HP sensor. 2. Check for blockages in the stack feed motor mechanism. 3. Replace the stack feed HP sensor and/or stack feed motor 4. Replace the finisher main board.
Code: 750
Description: 1000/3000-sheet (booklet) finisher: Tray lift motor error The 1st detection failure issues a jam error, and the 2nd failure issues this SC code. The upper tray paper height sensor does not change its status with the specified time after the tray raises or lowers.
Causes: 1. Check the connections to the shift tray motor. 2. Defective shift tray motor
Remedy: 1. Check the connections to the shift tray motor. 2. Defective shift tray motor.
Code: 753
Description: Return roller motor error Occurs during the operation of the lower tray pressure motor.
Causes: • Motor harness disconnected, loose, defective • Motor overloaded • Home position sensor harness disconnected, loose, defective • Home position defective
Remedy: 1. Check the connections to the return roller motor of the lower tray. 2. Defective return roller motor of the lower tray.
Code: 760
Description: Finisher punch motor error The punch HP sensor is not activated within the specified time after the punch motor turned on. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
Causes: • Punch HP sensor disconnected, defective • Punch motor disconnected or defective • Punch motor overload due to obstruction
Remedy: 1. Check the connections and cables for the punch motor and HP sensor. 2. Check for blockages in the punch motor mechanism. 3. Replace the punch HP sensor and/or punch motor 4. Replace the finisher main board.