Detecting The Size Of Paper In The Multifeeder - Canon NP7160 Service Manual

B. Detecting the Size of Paper in the Multifeeder
When the user sets the slide guide of the multifeeder to the width of copy paper, the
multifeeder paper width sensor 1 (PS9) and the multifeeder paper width sensor (PS10) operating
in conjunction with the movement of the side guide detect the width of the copy paper.
The identified width is used for blank exposure and fixing temperature control. The length of
copy paper in multifeeder mode is detected with reference to how long the registration paper
sensor (PS5) remains on.
Slide guide (front)
Multifeeder paper width
detection signal 1 (MLTPD1)
DC
controller
Multifeeder paper width
PCB
detection signal 2 (MLTPD2)
Paper width > 257
= >
257 Paper width > 216
= >
216 Paper width > 182
= >
182 Paper width
COPYRIGHT © 1998 CANON INC.
PS10
PS9
PS9
PS10
Slide guide (front)
Figure 5-302
Paper width (mm)
Table 5-301
CANON NP7161/NP7160 REV.0 AUG. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5 PICK-UP/FEEDING SYSTEM
Tape
Multifeeder tray
PS9
0
1
1
0
Slide guide (rear)
PS10
1
1
0
0
5–9