• 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.

• Code: 990
• Display: Inspection is required. 990 : Error
• Description: Waste toner sensor detection error
• Remedy: Is the K toner cartridge installed? Does the error occur again?
  Install the K toner cartridge. Be sure of cable connection, and then perform board replacement.

• Code: F0C, FFE, FFF
• Display: Power OFF/ON
  203 : Error
  204 : Error
  207 : Error
  208 : Error
  213 : Error
  214 : Error
  F0C : Error
  FFE : Error
  FFF : Error
• Description: CU program error (203 to 214 do not occur in general use of the MFP)
• Remedy: Invalid processing was performed with a CU program.
  Replace the CU/PU board.