Code :

Code: 935
Display: Power Off/on 935: Error
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 V72-17 board of tray 4. Replace the V72-17 board.

Code: 936
Display: Power Off/on 936: Error
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 V72-17 board of tray 5. Replace the V72-17 board.

Code: 940
Display: Power Off/on 940: Error
Description: Waste Toner Transfer Error
The transfer mechanism of the toner duct for ID is not operating properly.
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: 983
Display: Power Off/on 983: Error
Description: Error due to detection of the toner cartridges of the same color
Remedy: Two or more toner cartridges of the same color are detected. Install the cartridge of the specified in the specified position

Code: F0C, F0D, FFE, FFF
Display: Service Call 203: Error 204: Error
207: Error to 213: Error
Power Off/on nnn: p 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. Yes 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.