CHAPTER 2 BASIC OPERATIONCOPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 2-5ItemPower supplyDrive signalMoving/drive partsControlError detectionDescription24 VDC from the composite power supply.Signal (MMD) from the DC controller PCB.Photosensitive drum, primary charging roller, developing assembly,transfer charging roller, pickup roller, vertical path roller, registrationroller, feeding assembly, fixing assembly, delivery roller, heat exhaustfanExecutes on/off control.Executes constant speed rotation control.Issues ‘E010’.Table 2-102Figure 2-104CompositepowersupplyPCBDCcontrollerPCBPhasecontroldrivecircuitReference signalDrivecurrentHall IC outputMMCLKClock pulsegeneratorMain motor(M1)Main motor drive PCBJ205-4-3-2-1+24V J901-1-2-3-4J103-7J203-3J104-1J204-724VGNDMMDMLOCKD. Controlling the Main Motor (M1)1. OutlineTable 2-102 shows the functions of the main motor control circuit, and Figure 2-104 is a blockdiagram of the circuit.
