Controlling Blank Exposure; Outline - Canon NP6330 Service Manual

CHAPTER 4 IMAGE FORMATION SYSTEM
G. Controlling Blank Exposure

1. Outline

The copier executes blank exposure by shining the light of the pre-exposure lamp
against the size blanking reflecting plate and the full blanking reflecting plate. The area
of blanking exposure is controlled by one opening/closing shutter and slide shutter.
Blank shutter
motor
M8
Blank
shutter
solenoid
(SL5)
4-14
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Slide shutter (rear)
Size blanking reflecting plate
Pre-exposure lamp
Open / Close shutter
DC controller PCB
Figure 4-111
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Total blanking reflecting plate
Slide shutter (front)
Blank shutter
home position
sensor(PS20)