OKI MC561

• Code: 923
• Display: Power OFF/ON 923 : Error
• Description: A lock error with black image drum
  The image drum does not revolve properly.
• Remedy: The image drum does not revolve properly. Does the error display is provided again by turning off and on the MFP?
  Be sure the image drum is properly installed properly. Replace the image drum unit. Replace the image drum motor.

• Code: 928
• Display: Power OFF/ON 928 : Error
• Description: Fuser motor lock error
• Remedy: The fuser does not operate properly? Does the error occur again?
  Check that the fuser is properly installed. Replace the fuser. Replace the fuser motor.

• Code: 933
• Display: Power OFF/ON 933 : Error
• Description: Tray-2 CPU clock frequency error
• Remedy:

• Code: 941, 942, 943, 944
• Display: Power OFF/ON
  941 : Error
  942 : Error
  943 : Error
  944 : Error
• Description: PU Error
  A PU error was detected.
  941 : Watch Doc Timer Error 942 : Detection of Unassigned Interruption 943 : CPU Error Detection 944 : Dcon Access Error
• Remedy: Turn off and on the MFP. When this error occurs again, replace the CU/ PU board.

• Code: 980
• Display: Inspection is required. 980 : Error
• Description: Duplicate toner cartridge detection error
  Multiple toner cartridges for the same color ware detected.
• Remedy: Turn off the MFP. Replace the fuser.

• Code: 983
• Display: Inspection is required. 983 : Error
• Description: Duplicate toner cartridge detection error
  Multiple toner cartridges for the same color ware detected.
• Remedy: Install toner cartridges for specified colors at the proper positions.