Pick-Up From The Multifeeder - Canon NP6317 Service Manual

D.

Pick-Up from the Multifeeder

The multifeeder pick-up roller and holding plate are driven by the main motor (M1). The pres-
ence/absence of paper is monitored by the multifeeder paper sensor (Q1).
When the Copy Start key is pressed, the multifeeder solenoid (SL3) turns on temporarily,
causing the claw 1 to disengage from the control ring. When the multifeeder pick-up roller rotates,
the holding plate starts to move up; the pick-up roller continues to rotate even after the multifeeder
solenoid turns off.
A specific time (Note 1) after the leading edge of paper has reached the pre-registration sensor,
the multifeeder solenoid turns on once again, causing the claw 2 to engage with the control ring
gear and, ultimately, stopping the control ring.
The multifeeder solenoid turns off once again as soon as the registration roller starts to rotate.
This causes the claw 2 to disengage from the control ring gear. When the multifeeder pick-up roller
rotates, the holding plate starts to move down. When the control ring makes a full turn, the claw 1
engages with the control ring to stop the ring.
Note 1:
May be varied using 'C4' of service mode.
Lifter plate
Cam
COPYRIGHT © 1999 CANON INC.
Multifeeder
pick-up roller
Multifeeder
View A
Lifter plate
Figure 5-104
CANON NP6317 REV.0 APR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5 PICK-UP/FEEDING SYSTEM
Lifter plate
Cam
Multifeeder
solenoid (SL3)
Claw 1
Control ring
A
Claw 2
5-5