• Code: 918
• Description: An error was detected with the Duplex Fan Motor.
• Remedy: Does error reoccur? Does error reoccur after power restoration?
  Power Off/On. Check if the FAN is connected properly. Replace the FAN.

• Code: 923
• Description: An error was detected with the image drum motor by overload.
• Remedy: Does error reoccur after power restoration? Does error reoccur after power restoration?
  Check if the image drum is installed properly. Replace the image drum unit. Replace the ID motor.

• Code: 928
• Description: An error was detected the Fuser Motor rotation by overload.
• Remedy: Does error reoccur after power restoration? Does error reoccur after power restoration?
  Check if the fuser is installed properly. Replace the fuser. Replace the fuser motor.

• Code: 933
• Description: Tray2 CPU Clock Frequency Error
• Remedy: Does error reoccur after power restoration? Does error reoccur after power restoration?
  Replace the unit. Replace the PU/ CU board.

• Code: 934
• Description: Tray3 CPU Clock Frequency Error
• Remedy: Does error reoccur after power restoration? Does error reoccur after power restoration?
  Replace the unit. Replace the PU/ CU board.

• Code: 935
• Description: Tray4 CPU Clock Frequency Error
• Remedy: Does error reoccur after power restoration? Does error reoccur after power restoration?
  Replace the unit. Replace the PU/ CU board.

• Code: 941
• Description: A watch dog timer error was detected.
• Remedy: Does error reoccur? Yes Power Off/On. Replace the PU/ CU board.

• Code: 942
• Description: An undefined interruption was detected.
• Remedy: Does error reoccur? Yes Power Off/On. Replace the PU/ CU board.