• 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 unit. 4. Replace the BCU board.

• Code: 730
• Description: Shift tray motor error
  The shift tray HP sensor does not activate within 1.86 seconds after the shift tray motor starts to move at power on or copying. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
• Causes: • Defective shift tray motor • Defective shift tray HP sensor.
• Remedy: Replace the shift tray motor.

• Code: 740
• Description: Finisher stapler motor error
  The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
• Causes: • Staple jam • Motor overload • Defective stapler motor • Defective stapler safety sensor
• Remedy: 1. Check the connections and cables for the components mentioned above. 2. Replace the stapler unit 3. Replace the finisher main board.

• Code: 742
• Description: Finisher stapler movement motor error
• Causes: • Motor overload • Loose connection of the stapler unit HP sensor • Loose connection of the stapler unit movement motor • Defective stapler unit HP sensor • Defective stapler movement motor
• Remedy: 1. Check the connection of the stapler movement motor. 2. Check the connection of the stapler unit HP sensor. 3. Replace the stapler unit HP sensor. 4. Replace the stapler unit movement motor.

• Code: 750
• Description: Finisher: Tray lift motor error
• Causes: • Motor overload • Loose connection of the tray lift motor • Defective tray lift motor
• Remedy: 1. Check the connections to the tray lift motor. 2. Replace the tray lift 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 slider unit. 4. Replace the punch unit. 5. Replace the finisher main board.

• Code: 763
• Description: Finisher: Punch registration motor error
  The punch unit 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 registration motor
• Remedy: 1. Check the connections to the punch registration motor. 2. Replace the punch unit slider. 3. Replace the punch unit.

• Code: 787
• Description: Finisher: Paper edge detection sensor error
  The machine does not detect correct voltage from the paper edge detection sensor.
• Causes: • Defective connector • Defective paper edge detection sensor. • Defective DA or AD converter
• Remedy: 1. Replace the punch slider unit. 2. Replace the punch unit.