Canon NP6251 Service Manual

Also see for NP6251: Service manual Service bulletin

Contents

Canon NP6251 Service Manual Manual pdf 7 page image

COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON) vCONTENTSCHAPTER 1 GENERAL DESCRIPTIONI. FEATURES.........................................1-1II. SPECIFICATIONS ..............................1-2A. Copier ............................................1-21. Type..........................................1-22. Mechanisms .............................1-23. Performance .............................1-34. Others.......................................1-6B. Paper Deck-A1 ..............................1-9III. NAMES OF PARTS ............................1-10A. External View.................................1-10B. Cross Section ................................1-121. Copier .......................................1-12IV. OPERATING THE MACHINE.............1-13A. Control Panel.................................1-13B. Extended Modes ...........................1-14C. User Mode .....................................1-151. Types of User Modes ...............1-15V. ROUTINE MAINTENANCE BY THEUSER..................................................1-19VI. POINTS TO NOTE (BY THE USER) .1-19VII. IMAGE FORMATION..........................1-20A. Outline ...........................................1-20CHAPTER 2 BASIC OPERATIONI. BASIC MECHANISMS .......................2-1A. Functional Construction.................2-1B. Outline of the Electrical Circuitry ...2-2C. Basic Sequence of Operations......2-41. Basic Sequence of Operationsat Power-On (1/2).....................2-42. Basic Sequence of Operationsat Power-On (2/2).....................2-53. Basic Sequence ofOperations ................................2-74. Basic Sequence of Operationsin Page Separation Mode.........2-9D. Main Motor (M1) Control Circuitry..2-111. Outline ......................................2-112. Operation..................................2-123. Detecting an Error ....................2-12E. Inputs to the DC Controller............2-13F. Outputs from the DC Controller.....2-21G. Inputs to and Outputs fromAccessories ...................................2-32CHAPTER 3 EXPOSURE SYSTEMI. OUTLINE OF OPERATION ................3-1A. Varying the Reproduction Ratio.....3-1II. LENS DRIVE SYSTEM ......................3-2A. Moving of the Lens ........................3-21. Outline of the Movement ..........3-22. Moving the Lens .......................3-33. Lens Motor Control Circuit .......3-34. Moving the Lens .......................3-4III. SCANNER DRIVE SYSTEM ..............3-6A. Scanner Movement .......................3-61. Outline of Movement ................3-62. Relationship between theScanner Sensors and theSignals......................................3-73. Basic Sequence of Operations..3-84. Movement of the Scanner inPage Separation Mode ............3-95. Movement of the Scanner withthe RDF in Use (A4, 2 originals,1 copy)......................................3-116. Movement of the Scanner withthe RDF in Use (A4, 2 copies)..3-137. Scanner Motor (M3) ControlCircuit .......................................3-17IV. OTHERS.............................................3-20A. Original Size Detection..................3-201. Outline of Detection..................3-202. Operation..................................3-213. Sizes of Originals .....................3-22V. DISASSEMBLY AND ASSEMBLY......3-23A. Scanner Drive Assembly ...............3-241. Removing the Scanner DriveMotor ........................................3-24Download service manual and resetter printer at http://printer1.blogspot.com