• Code: 690
• Description: GAVD communication error
  The I2C bus device ID is not identified during initialization. A device-status error occurs during I2C bus communication. The I2C bus communication is not established due to an error other than a buffer shortage
• Causes: Loose connection. Defective BICU. Defective LD controller board
• Remedy: 1. Turn the main switch off and on. 2. Check the cable connection. 3. Replace the laser optics-housing unit. 4. Replace the BICU board.

• Code: 725
• Description: Finisher exit guide plate motor error
  After moving away from the guide plate position sensor, the exit guide is not detected at the home position within the prescribed time. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
• Causes: Guide plate motor disconnected, defective. Guide plate motor overloaded due to obstruction. Guide plate position sensor disconnected, defective.
• Remedy: 1. Check the connections and cables for the components mentioned above. 2. Check for blockages in the guide plate motor mechanism. 3. Replace the guide plate position sensor and/or guide plate motor 4. Replace the finisher main board.

• Code: 730
• Description: Finisher Tray 1 shift motor error
  The shift roller HP sensor of the upper tray does not activate within the prescribed time after the shift tray starts to move toward or away from the home position. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
• Causes: Shift tray HP sensor of the upper tray disconnected, defective. Shift tray motor of the upper tray is disconnected, defective. Shift tray motor of the upper tray overloaded due to obstruction.
• Remedy: 1. Check the connections and cables for the components mentioned above. 2. Check for blockages in shift motor mechanism. 3. Replace the shift tray HP sensor and/or shift motor 4. Replace the finisher main board.

• Code: 740
• Description: Finisher corner stapler motor error
  The 1st detection failure issues a jam error, and the 2nd failure issues this SC code. For 1000-sheet (booklet) finisher. The stapler motor does not switch off within the prescribed time after operating. The HP sensor of the staple unit does not detect the home position after the staple unit moves to its home position. The HP sensor of the staple unit detects the home position after the staple unit moves from its home position. For 500-sheet finisher. The stapler HP sensor does not detect "ON"/"OFF" signal even the stapler moves from the "OFF"/"ON" position for 0.6 seconds. The stapler HP sensor does not detect "ON" when a stapling job is commanded or the stapler moves.
• Causes: Staple jam. Motor overload. Defective stapler motor.
• Remedy: 1. Check the connections and cables for the components mentioned above. 2. Replace the HP sensor and/or stapler motor 3. Replace the finisher main board.

• Code: 742
• Description: Finisher stapler movement motor error
  For 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). For 500-sheet finisher. The stapler HP sensor does not detect "OFF" signal even the stapler moves from the "ON" position for 0.35 seconds. The stapler HP sensor does not detect "ON" signal even the stapler moves from the "OFF" position for 5.5 seconds.
• 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: 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-sheet (booklet) finisher: Tray lift motor error
• 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: 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.