Canon 1000 Service Manual page 202

3. OPERATION AND TIMING
5. Pick-Up from the Duplexing Unit
a. Outline
When copying on the second side, paper is picked up from the stack inside the duplexing unit stacking
assembly.
The stopper plate shifts down when the Start key is pressed, and the duplexing unit pick-up roller clutch
(CL10) turns on. This condition causes the drive of the pick-up motor (M10) to be transmitted to the pick-up
roller, starting pick-up operation. After pick-up, the duplexing pick-up roller releasing solenoid (SL8) operates
to move the pick-up roller away from the surface of the paper.
A single sheet of paper is fed into the pick-up vertical path assembly by the feeding roller and the
separation roller.
Figure 3-628 shows an outline of pick-up operation from the duplexing unit.
3-158
COPYRIGHT © 2001 CANON INC.
Photosensitive
drum
Transfer belt
Pick-up
M10
motor
Duplexing
pick-up roller
releasing solenoid
Figure 3-628
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
Photosensitive
drum
Photosensitive
Photosensitive
drum
drum
Bk
C
M Y
Pick-up vertical path roller 1 clutch
CL11
Duplexing pick-up roller clutch
CL10
SL8
Stopper plate
solenoid
SL12