Chapter 3 Exposure System; Operation; Outline - Canon CLC 1120 Service Manual

I.

OPERATION

A. Outline
Figure 3-101 shows a cross section of the original exposure system, and Figure 3-102 shows an
external view.
Item
Number of scans
Scanner motor (PM15)
Scanning lamp (LA2)
Scanner thermal switch 1 (TP1)
Scanner thermal switch 2 (TP6)
Scanner home position sensor (PS1)
No. 2 mirror
No. 3 mirror
COPYRIGHT © 1999 CANON INC.
4 scans max. (full color)
The motor is a 5-phase stepping motor used to drive the
scanner. Its direction of rotation changes when moving the
scanner forward and in reverse, while its speed of rotation
changes according to the selected reproduction ratio.
Halogen lamp (200 W)
Prevents overheating of the scanner. (175ºC)
Prevents overheating of the scanner. (175ºC)
Detects the scanner at its home position.
Table 3-101
Original Exposure System
Scanning lamp
(forward)
No. 1 mirror
Figure 3-101
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 3 EXPOSURE SYSTEM

Description
CCD
Lens
CCD driver
3-1