1. State Turn on the power switch, and clear E002/E003. Thereafter, turn off and then on the power switch. Does the fixing heater operate? NO: See “The fixing heater fails to operate.” 2. Wiring Is the wiring from the DC controller PCB to the fixing film unit normal? NO: Correct the wiring. 3. Fixing film unit, DC controller PCB Try replacing the fixing film unit. Is the problem corrected? YES: End. NO: Replace the DC controller PCB.