Description: An error was detected with the paper thickness sensor power cable
Remedy: Power OFF/ON. Does this error recur? Yes Replace the paper thickness sensor and the cable. Does this error recur? Yes Replace the printer control PCB.
Code: 994
Display: Service Call 994:Error
Description: A fuser where a high temperature error was detected is installed.
Remedy: Power OFF/ON. Does this error recur? Yes Replace the fuser unit.
Code: F0C
Display: Power Off/On F0C:Error
Description: CU program error
Remedy: Power OFF/ON. Does this error recur? Yes Replace the printer control PCB.
Code: FFF
Display: Power Off/On FFF:Error
Description: CU program error
Remedy: Power OFF/ON. Does this error recur? Yes Replace the printer control PCB.