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III. PICK-UP FROM THE CASSETTE FEEDING
MODULE-A2
A. Pick-Up Operation
When the pick-up clutch (CL1cu, CL2cu) turns on while the cassette unit motor
(M1cu), the pick-up roller starts to rotate to pick up copy paper; the paper is then moved
to the registration roller by the vertical path roller. (The sequence that follows is the same
as when paper is picked up from the cassette in the copier.)
For pick-up operation from the cassette feeding unit, pick-up sensors (PS1cu,
PS3cu) are used to check the arrival of paper, thereby deciding when to turn off the pick-
up roller according to the size of paper.
Figure 5-301
COPYRIGHT
©
1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5 PICK-UP/FEEDING SYSTEM
5-5
M1cu
Cassett e 2
Cassett e 3
PS2cu
PS4cu
PS1cu
CL1cu
CL2cu
PS3cu
Pick-up roller
Casette 2 size detection
Casette 3 size detection
Pick-up roller
Vertical path roller
Pick-up clutch
Cassette drive PCB
Cassette 2 size detection signal
Cassette 3 size detection signal
Cassette 2 paper detection signal (C2PD*)
Cassette 3 paper detection signal (C3PD*)
Cassette 2 vertical path detection signal
(C2VPD)
Cassette 3 vertical path detection signal
(C3VPD)
Cassette 2 pick-up clutch drive signal (C2PUCLD*)
Cassette 3 pick-up clutch drive signal (C3PUCLD*)
Cassette feeding unit motor drive
signal (CMD)
DC controller PCB
Cassette
unit motor
Pick-up clutch