Canon iR2030 Series Service Manual

Also see for iR2018 Series: Service manual Brochure & specs Brochure & specs Easy operation guide Portable manual

Contents

ContentsChapter 5 Laser Exposure5.1 Construction ............................................................................................................................................... 5- 15.1.1 Overview ..................................................................................................................................................................5- 15.1.2 Specifications and Control Mechanism....................................................................................................................5- 15.1.3 Main Components....................................................................................................................................................5- 15.1.4 Control System Configuration ..................................................................................................................................5- 25.2 Various Controls ......................................................................................................................................... 5- 25.2.1 Controlling the Laser Activation Timing ...................................................................................................................5- 25.2.1.1 Laser Emission ON/OFF Control ............................................................................................................................................. 5- 25.2.1.2 Horizontal Synchronization Control.......................................................................................................................................... 5- 35.2.2 Controlling the Intensity of Laser Light.....................................................................................................................5- 35.2.2.1 Automatic Photocurrent Control (APC) .................................................................................................................................... 5- 35.2.3 Controlling the Laser Scanner Motor .......................................................................................................................5- 35.2.3.1 Laser Scanner Motor Control................................................................................................................................................... 5- 35.2.4 Controlling the Laser Shutter ...................................................................................................................................5- 35.2.4.1 Laser Shutter Control............................................................................................................................................................... 5- 35.3 Parts Replacement Procedure ................................................................................................................... 5- 55.3.1 Laser Scanner Unit ..................................................................................................................................................5- 55.3.1.1 Removing the Laser Scanner Unit ........................................................................................................................................... 5- 5Chapter 6 Image Formation6.1 Construction ............................................................................................................................................... 6- 16.1.1 Specifications of Image Formation System..............................................................................................................6- 16.1.2 Major Components of Image Formation System .....................................................................................................6- 16.2 Image Formation Process .......................................................................................................................... 6- 36.2.1 Image Formation Process........................................................................................................................................6- 36.3 Basic Sequence ......................................................................................................................................... 6- 36.3.1 Basic Sequence of Operation ..................................................................................................................................6- 36.4 Driving and Controlling the High-Voltage System ...................................................................................... 6- 56.4.1 Outline......................................................................................................................................................................6- 56.5 Drum Unit ................................................................................................................................................... 6- 56.5.1 Outline of the Drum Unit ..........................................................................................................................................6- 56.5.1.1 Outline...................................................................................................................................................................................... 6- 56.5.2 Charging Mechanism ...............................................................................................................................................6- 56.5.2.1 Primary Charging Bias Control ................................................................................................................................................ 6- 56.6 Developing Unit .......................................................................................................................................... 6- 66.6.1 Outline......................................................................................................................................................................6- 66.6.2 Developing Bias Control ..........................................................................................................................................6- 66.7 Toner Container ......................................................................................................................................... 6- 76.7.1 Outline......................................................................................................................................................................6- 76.8 Transfer Unit............................................................................................................................................... 6- 76.8.1 Outline of the Transfer Unit......................................................................................................................................6- 76.8.1.1 Outline...................................................................................................................................................................................... 6- 76.8.2 Controlling the Transfer Bias ...................................................................................................................................6- 86.8.2.1 Transfer Roller Bias Control..................................................................................................................................................... 6- 86.8.3 Separation Mechanism ............................................................................................................................................6- 86.8.3.1 Static Eliminator Bias Control .................................................................................................................................................. 6- 86.9 Photosensitive Drum Cleaning ................................................................................................................... 6- 96.9.1 Outline......................................................................................................................................................................6- 96.9.2 Waste Toner Full Detection .....................................................................................................................................6- 96.10 Parts Replacement Procedure ............................................................................................................... 6- 106.10.1 Drum Unit .............................................................................................................................................................6- 106.10.1.1 Removing the Drum Unit...................................................................................................................................................... 6- 106.10.2 Developing Assembly...........................................................................................................................................6- 106.10.2.1 Removing the Developing Assembly ................................................................................................................................... 6- 10