5.1 Construction ...................................................................................................................................................................5-1

5.1.1 Overview...................................................................................................................................................................................... 5-1

5.1.2 Specifications and Control Mechanism ....................................................................................................................................... 5-1

5.1.3 Main Components ........................................................................................................................................................................ 5-1

5.1.4 Control System Configuration ..................................................................................................................................................... 5-2

5.2 Various Controls ............................................................................................................................................................5-2

5.2.1 Controlling the Laser Activation Timing..................................................................................................................................... 5-2

5.2.1.1 Laser Emission ON/OFF Control....................................................................................................................................................................5-2

5.2.1.2 Horizontal Synchronization Control ...............................................................................................................................................................5-3

5.2.2 Controlling the Intensity of Laser Light ...................................................................................................................................... 5-3

5.2.2.1 Automatic Photocurrent Control (APC)..........................................................................................................................................................5-3

5.2.3 Controlling the Laser Scanner Motor .......................................................................................................................................... 5-3

5.2.3.1 Laser Scanner Motor Control..........................................................................................................................................................................5-3

5.2.4 Controlling the Laser Shutter....................................................................................................................................................... 5-3

5.2.4.1 Laser Shutter Control ......................................................................................................................................................................................5-3

5.3 Parts Replacement Procedure.........................................................................................................................................5-5

5.3.1 Laser Scanner Unit....................................................................................................................................................................... 5-5

5.3.1.1 Removing the Laser Scanner Unit ..................................................................................................................................................................5-5

Contents

Table of Contents