Canon i-SENSYS D450d Service Manual - page 69
Contents
Contents
5.1 Overview/Configuration ................................................................................................................................................5-1
5.1.1 Overview...................................................................................................................................................................................... 5-1
5.2 Controlling the Laser Activation Timing.......................................................................................................................5-2
5.2.1 Laser ON / OFF Control .............................................................................................................................................................. 5-2
5.3 Controlling the Intensity of Laser Light ........................................................................................................................5-2
5.3.1 Auto Photoelectric Current Control (APC).................................................................................................................................. 5-2
5.4 Controlling the Laser Scanner Motor.............................................................................................................................5-4
5.4.1 Overview...................................................................................................................................................................................... 5-4
5.4.2 Scanner Motor Speed Control...................................................................................................................................................... 5-4
5.4.3 Detection of Fault of the Scanner Motor ..................................................................................................................................... 5-4
5.5 Parts Replacement Procedure.........................................................................................................................................5-5
5.5.1 Laser/Scanner Unit....................................................................................................................................................................... 5-5
5.5.1.1 Preparation for Removing the Laser Scanner Unit .........................................................................................................................................5-5
5.5.1.2 Removing the Laser Scanner Unit ..................................................................................................................................................................5-5