COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON) ixI. BASIC OPERATION...........................8-1A. Outline of Electrical Circuit ............8-1II. INPUTS TO AND OUTPUTS FROMPEDESTAL CONTROLLER ...............8-2A. Outline ...........................................8-2B. Inputs to and Outputs fromPedestal Controller ........................8-31. Inputs and outputs (1/2) ...........8-32. Inputs and outputs (2/2) ...........8-4III. PEDESTAL MOTOR CONTROLCIRCUIT .............................................8-5A. Outline ...........................................8-5B. Mechanism ....................................8-5IV. PAPER DECK UNIT ...........................8-6A. Basic Construction ........................8-6B. Pick-Up/Feeding Operation ...........8-71. Mechanism ...............................8-72. Sequence of Pick-UpOperations ................................8-8C. Lifter Operation..............................8-91. Operation..................................8-92. Lifting Operation .......................8-10D. Detecting Paper in the Deck .........8-111. Identifying the Size of Paper ....8-112. Identifying the Presence/Absence of Paper.....................8-12V. DETECTING JAMS ............................8-131. Outline ......................................8-13VI. DISASSEMBLY AND ASSEMBLY......8-15A. Externals........................................8-161. Paper Deck Pedestal-M1 .........8-162. Detaching the Copier from thePedestal ...................................8-17B. Pedestal Motor Drive Assembly ....8-191. Removing the pedestal motordrive assembly .........................8-19C. Paper Deck....................................8-201. Removing the Paper Deck .......8-202. Removing the Lifter Wire..........8-213. Setting the Deck Size...............8-254. Adjusting the Deck Registration ..8-27D. Pick-Up System .............................8-281. Cross Section of Pick-UpAssembly ..................................8-282. Removing the Pick-UpAssembly ..................................8-29CHAPTER 8 PAPER DECK PEDESTALCHAPTER 7 CONTROLS AND EXTERNALSI. FANS ..................................................7-1II. POWER SUPPLY ...............................7-3A. Outline of Power Supply................7-3B. Protection Mechanisms of thePower Supply Circuit .....................7-5III. ERROR DETECTION CIRCUIT .........7-6A. Outline ...........................................7-6B. Scanning Lamp Error ActivationDetection Circuit ............................7-7C. Fixing Heater Error ActivationDetection Circuit ............................7-71. Detection by an SSR................7-72. Detection by a Thermistor ........7-7IV. DISASSEMBLY AND ASSEMBLY......7-8A. Externals........................................7-91. Remove the left inside cover....7-112. Remove the right inside cover ...7-12B. Control Panel.................................7-141. Removing the Control Panel ....7-14C. Copyboard Cover ..........................7-151. Replacing the CopyboardCover Sheet .............................7-15D. Fans...............................................7-151. Removing the ScannerCooling Fan ..............................7-152. Removing the Exhaust Fan......7-153. Removing the Feeding Fan .....7-17E. Main Motor Assembly....................7-171. Removing the Main MotorAssembly ..................................7-17F. Mirror Guide Assembly..................7-181. Removing the Mirror GuidePlate .........................................7-18G. Main Drive Assembly.....................7-191. Removing the Main DriveAssembly ..................................7-192. Attaching the Drive Belt............7-22H. Cleaning Belt Drive Assembly .......7-231. Removing the Cleaning BeltDrive Assembly ........................7-23I. DC Controller PCB ........................7-241. Removing the DC ControllerPCB ..........................................7-242. Points to Note When Handlingthe DC Controller PCB .............7-24J DC Power Supply PCB .................7-251. Removing the DC PowerSupply PCB ..............................7-25
