Figure 4-122+--+12VAC driverDrum heaterdrive circuitSW1Powersupply switchSW3Drum heaterswitchSW2ACPower suppl;yDoor switchDrumheaterTP3TriacJ01-1Drum heater controller PCBTrigger circuitComparison circuitThermistorTHJ01-5-6DC controllerPCBPowersupplyunitJ104-A4-A3-A7-A8J102-B2 J641-3FU601DHRDCHAPTER 4 IMAGE FORMATION SYSTEM4-23COPYRIGHT © 1997 CANON INC. CANON NP6560/NP6360/NP6260 REV. 0 NOV. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)