ContentsContents6.1 Construction..................................................................................................................................................... 6- 16.1.1 Outline of the Laser Exposure System................................................................................................. 6- 16.2 Basic Sequence .............................................................................................................................................. 6- 36.2.1 Basic Sequence of Operations (laser exposure system) .................................................................. 6- 36.3 Various Controls ............................................................................................................................................. 6- 36.3.1 Controlling the Laser Activation Timing ................................................................................................ 6- 36.3.1.1 Turning On and Off the Laser Unit................................................................................................. 6- 36.3.1.2 Flow of the BD Signal....................................................................................................................... 6- 46.3.2 Controlling the Intensity of Laser Light ................................................................................................. 6- 56.3.2.1 APC Control....................................................................................................................................... 6- 56.3.3 Controlling the Laser Scanner Motor .................................................................................................... 6- 66.3.3.1 Outline ................................................................................................................................................ 6- 66.3.4 Controlling the Laser Shutter.................................................................................................................. 6- 76.3.4.1 Controlling the Laser Shutter .......................................................................................................... 6- 76.4 Parts Replacement Procedure ..................................................................................................................... 6- 86.4.1 Laser Scanner Unit .................................................................................................................................. 6- 8
