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OPERATIONS AND TIMING
COPYRIGHT
©
1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
D. Pick-Up from the Cassette
Feeding Module-A2
1. Pick-Up Operation
When the pick-up clutch (CL1cu, CL2cu) turns
ON while the cassette unit motor (M1cu) is rotating,
the pick-up roller rotates to start pick-up operation;
the copy paper is sent as far as the vertical path
roller after the pick-up. (The paper, thereafter, takes
the same path as it would if picked up from the
machine’s cassette.)
The cassette unit is equipped with a pick-up
sensor (PS1cu, PS3cu) to detect the arrival of copy
paper and determine when to turn off the pick-up
roller to suit the size of the paper.
Figure 3-426
M1cu
Cassett e 3
Cassett e 4
PS2cu
PS4cu
PS1cu
CL1cu
CL2cu
PS3cu
Pick-up roller
Casette 3 size detection
Casette 4 size detection
Pick-up roller
Vertical path roller
Pick-up clutch
Pick-up clutch
To Copier
Cassette drive PCB
Cassette 3 size detection signal
Cassette 4 size detection signal
Cassette 3 paper detection signal (C3PD*)
Cassette 4 paper detection signal (C4PD*)
Cassette 3 vertical path detection signal
(C3VPD)
Cassette 4 vertical path detection signal
(C4VPD)
Cassette 3 pick-up clutch drive signal (C3PUCLD*)
Cassette 4 pick-up clutch drive signal (C4PUCLD*)
Cassette feeding unit motor drive
signal (CMD)
DC controller PCB
Cassette
unit motor