Chapter 5 Laser Exposure System; Operations; Outline - Canon GP605 Service Manual

I . OPERATIONS
A.

Outline

Volume 4>Chapter 4>I.A. "Outline"
Item
Laser intensity control
Laser scanning
Synchronization control
Laser scanner motor
control
COPYRIGHT © 1999 CANON INC.
[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 GP605/605V REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 5 LASER EXPOSURE SYSTEM

Description
5-1