Remedy: The tray-3 CPU clock frequency is not correct. Does the error still occur? Check the connection of the V72-1 board of tray 3. Replace the V72-1 board.
Code: 935
Display: Service Call 935
Description: Trya4 CPU Clock Frequency Error
Remedy: The tray-4 CPU clock frequency is not correct. Does the error still occur? Check the connection of the V72-1 board of tray 4. Replace the V72-1 board.
Code: 936
Display: Service Call 936
Description: Trya5 CPU Clock Frequency Error
Remedy: The tray-5 CPU clock frequency is not correct. Does the error still occur? Check the connection of the V72-1 board of tray 5. Replace the V72-1 board.
Code: 940
Display: Service Call 940
Description: Waste Toner Transfer Error
Remedy: The transfer mechanism of the toner duct for ID is not operating properly. Does the error still occur? Check to confirm that the basket assembly is in position (if it is engaged with the gear of the printer). Check to confirm that the holder magnet D contains a magnet, and check the magnetic polarity. Replace the HAL IC circuit board. Replace the duct assembly toner.
Code: F0C, F0D, FFE, FFF
Display: Service Call 203: Error to 208: Error 210: Error to 214: Error 0xFOC: Error 0xFOD: Error 0xFFE: Error 0xFFF: Error
Description: CU Program Dysfunction Detected illegal process with CU program.
Remedy: Detected illegal process with CU program. Write down the 24 digit number displayed on the LCD panel and report it. Turn OFF the power. Then check the insertion of the CU board. Now turn ON the power again.