Canon iR8500 Servise Manual

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Contents

COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500 REV.0 MAR. 2001xCONTENTSContentsCHAPTER 1 INTRODUCTION1 Features ............................................... 1-11.1 High-Speed,High-Quality Images .................. 1-11.2 High Durability,High Reliability ......................... 1-11.3 High-Performance Controller,Large-Capacity Hard Disk forHigh-Level Processing ............... 1-11.4 Ease of Use ................................ 1-11.5 Large Source of Paper ................ 1-11.6 Various Delivery Handling(w/ accessories) .......................... 1-21.7 High-Level PrintingFunctions Supporting Useson a Network .............................. 1-22 Specifications ...................................... 1-32.1 Copier ......................................... 1-32.1.1 Type ..................................... 1-32.1.2 Methods ............................... 1-32.1.3 Functions ............................. 1-42.1.4 Others ................................ 1-102.2 Side Paper Deck-M1 ................ 1-133 Names of Parts .................................. 1-143.1 External View ........................... 1-143.2 Cross Section ........................... 1-164 Using the Machine ............................ 1-184.1 Power Switch ........................... 1-184.2 Control Panel ........................... 1-194.3 Special Features ....................... 1-204.4 User Mode ................................ 1-21CHAPTER 2 NEW FUNCTION1 Basic Construction .............................. 2-11.1 Functional Construction ............ 2-11.2 Inputs to the Major PCBs .......... 2-21.2.1 Wiring of the major PCBs ... 2-22 New Functions .................................... 2-32.1 Original Exposure System ......... 2-52.1.1 Changes in the OriginalExposure System ................. 2-52.1.2 Outline of the OriginalExposure System ................. 2-72.1.3 Enlargement/Reduction Method ............... 2-72.1.4 Preventing Overheating ofthe Scanner Motor ............... 2-82.1.5 Arrangement of the PCBs .... 2-92.1.6 Stabilizing the ScanningLamp .................................. 2-102.1.7 Detecting the State (open/closed) of the DADF .......... 2-102.1.8 Detecting Dust in StreamReading Mode ................... 2-122.2 Image Processing System ........ 2-152.2.1 Changes to the ImageProcessing System ............. 2-152.2.2 Outline of the ImageProcessing System ............. 2-172.2.3 4-Channels High-speedCCD ................................... 2-182.2.4 CCD Adjustment ............... 2-192.2.5 Analog ImageProcessing .......................... 2-202.2.6 Digital Image Processing ... 2-212.2.7 Detecting the Orientation ofOriginals ............................ 2-222.3 Laser Exposure System ............ 2-232.3.1 Changes in the LaserExposure System ............... 2-232.3.2 Outline of the LaserExposure System ............... 2-252.4 Image Formation System ......... 2-272.4.1 Changes in the Imageformation System ............... 2-27