• Code: 918
• Display: Power Off/on 918: Error
• Description: Duplex FAN0 Alarm Detection
• Remedy: Error of the fan in the duplex unit. Does the error still occur after rebooting? Yes Check to confirm that the duplex unit is mounted correctly. Check the connection of the fan. Yes Replace the fan.

• Code: 919
• Display: Power Off/on 919: Error
• Description: Duplex 24V Abnormal Current Detection
• Remedy: 24 V of power is not supplied to the duplex unit properly. Does the error still occur after rebooting? Yes Check to confirm that the duplex unit is mounted correctly. Yes Check the connection of the fan. Replace the fan.

• Code: 920
• Display: Power Off/on 920: Error
• Description: Yellow Image Drum Lock Error
• Remedy: The Y ID unit is not operating properly. Does the error message still appear after rebooting? Yes Check to confirm that the Y ID unit is in position. Replace the Y ID unit. Yes Replace the Y ID motor.

• Code: 921
• Display: Power Off/on 921: Error
• Description: Magenta Image Drum Lock Error
• Remedy: The M ID unit is not operating properly. Yes Check to confirm that the M ID unit is in position. Does error message still appear after rebooting? Yes Replace the M ID unit. Replace the M ID motor.

• Code: 922
• Display: Power Off/on 922: Error
• Description: Cyan Image Drum Lock Error
• Remedy: The C ID unit is not operating properly. Yes Check to confirm that the C ID unit is in position. Does error message still appear after rebooting? Yes Replace the C ID unit. Replace the C ID motor.

• Code: 923
• Display: Power Off/on 923: Error
• Description: Black Image Drum Lock Error
• Remedy: The K ID unit is not operating properly. Yes Check to confirm that the K ID unit is in position. Does the error message still appear after rebooting? Yes Replace the K ID unit. Replace the K ID motor.

• Code: 924
• Display: Power Off/on 924: Error
• Description: Tray2 24V Abnormal Voltage Detection
• Remedy: 24 V of power is not supplied to tray 2 properly. Check to confirm that tray 2 is mounted correctly.

• Code: 925
• Display: Power Off/on 925: Error
• Description: Tray3 24V Abnormal Voltage Detection
• Remedy: 24 V of power is not supplied to tray 3 properly Check to confirm that tray 3 is mounted correctly.