Exposure/Copyboard Drive System; Outline Of Exposure System; Copyboard Drive System; Outline - Canon FC220 Service Manual

I. EXPOSURE/COPYBOARD DRIVE SYSTEM
A. Outline of Exposure System
While the copyboard is moving forward, the scanning lamp (LA1 through LA8)
illuminates the document, and the reflected light is projected to the photosensitive drum
through the lens array.
Scanning lamp
B. Copyboard Drive System

1. Outline

The copyboard is moved forward or in reverse by transmitting the drive of the main
motor (M1) to the copyboard drive gear (pinion). Figure 3-101B illustrates the
movement of the copyboard.
Copyboard Home
1 2
Position (HP)
Copyboard
Copier
COPYRIGHT © 1998 CANON INC.
Copyboard glass
Figure 3-101A
Copyboard Start
3
Position (SP)
Reverse Forward
Continuous copying
Figure 3-101B Front View
CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
Photosensitive
drum
Copyboard Reversal
4
Position
CHAPTER 3 EXPOSURE SYSTEM
Lens array
Home
5
Position
Reverse Stop
3-1