Canon iR2270 Series, Руководство по обслуживанию

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Contents
6.1.1Specifications, Control Mechanism, and Functions ....................................................................................6- 1
6.1.2Major Components ......................................................................................................................................6- 2
6.1.3Construction of the Control System ............................................................................................................6- 2
6.2 Basic Sequence .................................................................................................................................................. 6- 6
6.2.1Basic Sequence ...........................................................................................................................................6- 6
6.3 Various Controls................................................................................................................................................6- 7
6.3.1 Controlling the Laser Activation Timing ....................................................................................................6- 7
6.3.1.1 Turning On and off the Laser Light.....................................................................................................6- 7
6.3.1.2 Main Scanning Synchronous Control ..................................................................................................6- 8
6.3.2 Controlling the Intensity of Laser Light......................................................................................................6- 9
6.3.2.1 APC Control ........................................................................................................................................6- 9
6.3.3 Controlling the Laser Scanner Motor........................................................................................................6- 10
6.3.3.1 Controlling the Laser Scanner Motor ................................................................................................6- 10
6.3.4 Controlling the Laser Shutter ....................................................................................................................6- 10
6.3.4.1 Controlling the Laser Shutter.............................................................................................................6- 10
6.4 Parts Replacement Procedure ..........................................................................................................................6- 12
6.4.1 Laser Scanner Unit ....................................................................................................................................6- 12
6.4.1.1 Removing the Front Cover Unit ........................................................................................................6- 12
6.4.1.2 Removing the Left Cover ..................................................................................................................6- 12
6.4.1.3 Removing the Laser Unit...................................................................................................................6- 12
Chapter 7 Image Formation
7.1 Construction.......................................................................................................................................................7- 1
7.1.1Specifications of the Image Formation System ...........................................................................................7- 1
7.1.2Major Components of the Image Formation System................................................................................... 7- 2
7.2 Image Formation Process ..................................................................................................................................7- 4
7.2.1Image Formation Process (outline)..............................................................................................................7- 4
7.2.2Image Formation Process (image formation) ..............................................................................................7- 5
7.3 Basic Sequence .................................................................................................................................................. 7- 6
7.3.1Sequence of Operation (initial rotation) ......................................................................................................7- 6
7.3.2Sequence of Operation (initial rotation) ......................................................................................................7- 6
7.3.3Sequence of Operation (copying) ................................................................................................................7- 7
7.3.4Sequence of Operation (copying) ................................................................................................................7- 8
7.3.5Sequence of Operation (last rotation) ..........................................................................................................7- 8
7.3.6Sequence of Operation (last rotation) ..........................................................................................................7- 9
7.4 Image Stabilization Control.............................................................................................................................7- 10
7.4.1Overview....................................................................................................................................................7- 10
7.4.2APVC Control ...........................................................................................................................................7- 10
7.4.3ATVC Control ...........................................................................................................................................7- 11
7.5 Drum Unit........................................................................................................................................................7- 12
7.5.1 Charging Mechanism ................................................................................................................................7- 12
7.5.1.1 Controlling the Primary Charging Bias .............................................................................................7- 12
7.5.1.2 Primary Charging Roller Cleaning Mechanism................................................................................. 7- 12
7.6 Drum Cleaner Unit ..........................................................................................................................................7- 14
7.6.1Photosensitive Drum Cleaning ..................................................................................................................7- 14
7.7 Developing Unit...............................................................................................................................................7- 15
7.7.1Controlling the Developing Bias ...............................................................................................................7- 15
7.8 Toner Container ...............................................................................................................................................7- 16