Canon MF4690 - ImageCLASS B/W Laser Service Manual page 39

Contents
3.1 Basic Constraction .........................................................................................................................................................3-1
3.1.1 Specifications / Control / Function List ....................................................................................................................................... 3-1
3.1.2 Major Components....................................................................................................................................................................... 3-1
3.2 Various Control..............................................................................................................................................................3-3
3.2.1 Dirt Sensor Control ...................................................................................................................................................................... 3-3
3.2.1.1 Outline.............................................................................................................................................................................................................3-3
3.3 Parts Replacement Procedure.........................................................................................................................................3-5
3.3.1 Scanner Unit................................................................................................................................................................................. 3-5
3.3.1.1 Preparation for Removing the Control Panel Assembly .................................................................................................................................3-5
3.3.1.2 Removing the Control Panel Assembly ..........................................................................................................................................................3-5
3.3.2 Book Motor .................................................................................................................................................................................. 3-5
3.3.2.1 Preparation for Removing the Flat Bed Motor ...............................................................................................................................................3-5
3.3.2.2 Removing the Flat Bed Motor.........................................................................................................................................................................3-5
3.3.3 Contact Sensor ............................................................................................................................................................................. 3-6
3.3.3.1 Removing the Contact Sensor.........................................................................................................................................................................3-6
Contents