3–1OPERATIONS AND TIMINGCOPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)I. BASIC OPERATIONSA. Functional ConstructionThe machine can be divided into four functional blocks: pick-up/feeding system, exposure system, imageformation system, and control system.Figure 3-101Control systemControl panelControl circuitTray Fixingassembly FeedingassemblyDuplexingunitDrumcleaningassemblyPrimary coronaassemblyOpticalpathassemblyPhotosensitivedrumSeparation TransferPick-up/feedingsystem 1Pick-up/feedingsystem 3 (accessory)Copyboard Exposure systemIlluminatingassemblyImage formationsystemDevelopingassemblyPick-upcontrolassemblyCassette 1Cassette 2CassetteUnitCassetteUnitCassetteUnitManual feedingassemblyFlow of high voltage/tonerFlow of paperFlow of lightFlow of electrical signals
