Chapter 1414-17T-14-19Ref. Name Description Parts No.[1] DC controller PCB controls the power supply to the printer unit/finisherFM2-3646[2] DC power supply PCB supplies DC power FK2-0799 (100V/120V)FK2-0800 (230V)[3] AC driver PCB controls the AC circuitry FM2-3044 (100V; ACdriver unit)FM2-3043 (120V; ACdriver unit)FM2-3045 (230V; ACdriver unit)[4] motor driver PCB controls the motor FM2-3655[5] HVT PCB generates high voltage FM2-3653[6] potential PCB controls the surface potential of thephotosensitive drumFM2-3040[7] drum heater control PCB controls the drum heater FM2-0841 (100V/120V)FM2-0842 (230V)[8] option power supply PCB supplies power to the finisher FK2-0797 (100V/120V)FK2-0798 (230V)[9] duplexing drive PCB controls the sensors, motors, and solenoidsof the duplexing unitFM2-3654[10] laser drive PCB controls the laser drive FM2-3670 (laserscanner unit)[11] BD developing PCB detects the laser beam[12] control panel keypad PCB controls the keys and LEDs FM2-1250[13] control panel CPU PCB controls the control panel FM2-1249[14] control panel inverter PCB adjusts the contrast of the control panel FM2-1251[15] rush-current prevention PCB prevents rush current to the fixing feeding/duplexing unitFG6-4978[16] capacitor PCB removes noise FM2-3044 (100V; ACdriver unit)FM2-3043 (120V; ACdriver unit)FM2-3045 (230V; ACdriver unit)[17] fixing heater power supply PCB controls the fixing heater FM2-3647 (100V)FM2-3648 (120V)FM2-3649 (230V)[18] main controller PCB performs digital image processing/systemcontrolFM2-3794[19] differential PCB converts communication signals FM2-3796[20] PCI expansion PCB serves as a relay PCB FG3-1745 (option)[21] drum cleaner thermistor PCB detects clogging of the cleaner FM2-3661[22] potential sensor PCB measures the photosensitive drum surfacepotentialFM2-3040