• Code: J8-2
• Description: MCU Toner Cartridge CRUM Data Write fail
• Causes: A data write error occurred on the XERO CRUM Tag in the Toner Cartridge.

• Code: J8-3
• Description: Toner Cartridge CRUM ID fail
• Causes: A Toner Cartridge of a different specification is attached.

• Code: U0-1
• Description: Main Motor stop error
• Causes: Due to the malfunction in the control system of the PWBA MCU F, the Main Motor does not stop when paper is not transported.

• Code: U0-2
• Description: Image Ready error
• Causes: The PWBA MCU F does not receive the image-ready signal from the PWBA ESS at the specified timing.

• Code: U1-1
• Description: Main Motor fail
• Causes: The Main Motor does not rotate at the specified speed.

• Code: U1-4
• Description: Drum Motor fail
• Causes: The Drum Motor does not rotate at the specified speed.

• Code: U3-3
• Description: Laser Power fail
• Causes: Light intensity of the LD2 is less than the specified value.

• Code: U3-5
• Description: ROS Motor fail
• Causes: -Rotation speed of the ROS motor is less than the specified value even when the specified time is passed after the motor starts rotating. - Light intensity of the LD1 is less than the specified value.