COPYRIGHT © 1997 CANON INC. CANON NP6045 REV.1 MAR. 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)xCHAPTER 7 EXTERNALS/AUXILIARY MECHANISMSI. CONTROL PANEL .............................7-1A. Outline ...........................................7-1B. Operation.......................................7-11. Data Communication................7-12. LCD Processing .......................7-23. LCD Contrast AutomaticAdjustment ...............................7-34. Touch Switch Input ...................7-4II. FANS ..................................................7-5III. POWER SUPPLY ...............................7-8A. Outline of Power Supply................7-8B. Power Supply Circuit .....................7-9C. Power Supply for Date/TimeDisplay...........................................7-11IV. DISASSEMBLY AND ASSEMBLY......7-12A. External Covers .............................7-121. Removing the Front Door.........7-132. Removing the Inside UpperCover ........................................7-153. Removing the Fixing/FeedingUnit Front Cover .......................7-154. Removing the Rear Cover........7-165. Sliding Out the HopperAssembly ..................................7-166. Removing the Process Unit......7-177. Installing the Process Unit........7-19B. Control Panel.................................7-201. Removing the Control Panelfrom the Copier ........................7-202. Removing the Control PanelPCB ..........................................7-243. Removing the Touch Panel ......7-244. Removing the Control PanelCPU PCB .................................7-25C. Door Switch Assembly ..................7-261. Removing the Front DoorSwitch Assembly ......................7-262. Removing the MultifeederDoor Switch Assembly .............7-273. Installing the Drum HeaterSwitch .......................................7-27D. Fan Unit .........................................7-281. Removing the ScannerCooling Fan ..............................7-282. Removing the Air ExhaustFan ...........................................7-283. Removing the Fixing AirExhaust Fan .............................7-294. Removing the DevelopingFan ...........................................7-295. Removing the Cleaner Fan ......7-306. Removing the Feeding Fan......7-31E. Removing the Counter Assembly..7-31F. Main Motor Assembly....................7-321. Removing the Main Motor ........7-32G. Fixing/Waste Toner DriveAssembly .......................................7-321. Construction .............................7-322. Removing the Waste TonerBottle ........................................7-333. Removing the Fixing/WasteToner Drive Assembly ..............7-33H. Drive Assembly (drum/developing assembly)....................7-351. Construction .............................7-352. Removing the Drive Assembly .7-35I. Vertical Path Drive Assembly ........7-361. Construction .............................7-362. Removing the Vertical PathDrive Assembly ........................7-375. Removing the Upper FixingUnit ...........................................6-206. Removing the Fixing Heater.....6-227. Installing the Fixing Heater.......6-248. Removing the Upper FixingRoller ........................................6-249. Installing the Upper FixingRoller ........................................6-2610.Removing the Thermal Switch .6-2711.Removing the Main Thermistor(TH1) ........................................6-2712.Removing the LowerSeparation Claw Assembly ......6-2813.Removing the Lower Roller......6-2914.Removing the UpperSeparation Claw .......................6-3015.Adjusting the Nip (tighteningthe pressure adjusting nut).......6-3016.Adjusting the Fixing Clutch.......6-3117.Removing the Sub Thermistor(TH2) Unit.................................6-32B. Delivery Assembly .........................6-331. Construction .............................6-332. Removing the Delivery UpperGuide (fixing deliveryassembly) .................................6-333. Removing the Fixing/FeedingLocking Assembly ....................6-344. Removing the ExternalDelivery Roller ..........................6-345. Removing the External DeliverySensor and the InternalDelivery Sensor ........................6-366. Removing the Fixing AssemblyOutlet Paper SensorAssembly ..................................6-367. Removing the Internal DeliveryRoller ........................................6-37
