Chapter 5 Laser Exposure System; Operations; Outline - Canon ImageRunner 600 Service Manual

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I . OPERATIONS

Part 2>Chapter 4>1>1.1

Laser intensity control

Laser scanning

Synchronization control

Laser scanner motor

[1] APC control

[2] Optimum intensity control to suit the surface potential of the drum

By 2 laser semiconductors (laser A, B)

Main scanning direction: by BD signal (based on laser B)

Sub scanning direction: by PTOP signal

(image leading edge signal in page memory)

[1] Constant speed rotation control

[2] Full-speed/wait rotation switching

Table 5-101 Major Functions

CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.

CHAPTER 5 LASER EXPOSURE SYSTEM

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