III. PICK-UP FROM THE CASSETTE FEEDINGMODULE-A2A. Pick-Up OperationWhen 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 movedto the registration roller by the vertical path roller. (The sequence that follows is the sameas 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 5-301COPYRIGHT © 1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 5 PICK-UP/FEEDING SYSTEM5-5M1cuCassett e 2Cassett e 3PS2cuPS4cuPS1cuCL1cuCL2cuPS3cuPick-up rollerCasette 2 size detectionCasette 3 size detectionPick-up rollerVertical path rollerPick-up clutchCassette drive PCBCassette 2 size detection signalCassette 3 size detection signalCassette 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 drivesignal (CMD)DC controller PCBCassetteunit motorPick-up clutch
