vCONTENTSCHAPTER 1 GENERAL DESCRIPTIONI. FEATURES ..............................................1-1II. SPECIFICATIONS....................................1-2A. Printer Unit .........................................1-2III. SAFETY OF LASER LIGHT.....................1-6IV. NAMES OF PARTS..................................1-7A. External View .....................................1-7B. Cross Section...................................1-11V. USING THE CONTROL PANEL.............1-13VI. NOTES TO THE USER ..........................1-15VII. NOTES TO THE SERVICE PERSON ....1-16A. Storing the Drum Cartridge and theToner Cartridges ..............................1-16B. Points to Note When Handling theDrum Cartridge and the TonerCartridges ........................................1-18VIII. IMAGE FORMATION .............................1-20A. Outline..............................................1-20B. Latent Static Image FormationBlock ................................................1-22C. Development Block ..........................1-25D. Transfer Block ..................................1-27E. ITD (intermediate transfer drum)Cleaning Block .................................1-31F. Photosensitive Drum Cleaning.........1-33G. Fixing Block......................................1-34CHAPTER 2 BASIC OPERATIONI. BASIC OPERATIONS ..............................2-1A. Functional Construction .....................2-1B. Electrical Circuitry ..............................2-2C. Inputs to and Outputs of the MajorPCBs. .................................................2-3D. Basic Sequence of Operations (used asa printer)...........................................2-14E. Controlling the Main Motor...............2-19CHAPTER 3 LASER EXPOSURE SYSTEMI. OUTLINE..................................................3-1II. LASER CONTROL CIRCUIT ...................3-3A. Outline................................................3-3B. Image Signal Processing ...................3-5C. Controlling the Laser Intensity ...........3-6D. Horizontal Sync Control .....................3-7E. Controlling the Laser DiodeEmission ............................................3-8III. LASER SCANNER MOTOR.....................3-9A. Controlling the Laser ScannerMotor ..................................................3-9IV. FAULT IN THE LASER SCANNER ........3-11V. DISASSEMBLY/ASSEMBLY ..................3-12A. Printer Unit External Covers ............3-13B. Door Switch Actuator .......................3-22C. Laser/Scanner Assembly .................3-25COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)Download free service manual at http://printer1.blogspot.com
