IV. MULTIFEEDERA. Pick-Up OperationThe presence/absence of paper in the multifeeder is detected by the multifeederpaper sensor (PS22).When the multifeeder is selected as the source of paper and the Copy Start key ispressed with paper in the multifeeder, the multifeeder pick-up clutch (CL7) andmultifeeder pick-up relay solenoid (SL15) turn on to rotate the pick-up roller, feedingroller, separation roller, and holding roller.Then, the multifeeder solenoid (SL10) turns on in pick-up direction to lower therotating pick-up roller to the copy paper, moving the topmost sheet of paper into themachine.Each time a single sheet of paper has been picked up, the multifeeder pick-up rollersolenoid (SL10) turns on in release direction to move the pick-up roller away from thecopy paper; then, the multifeeder pick-up relay solenoid (SL15) turns off to move thepaper with the registration roller and the holding roller.Figure 5-401DC controller PCBM2CL7SL15SL10Copy paperTrayMultifeederpick-upsolenoidPick-up rollerFeeding rollerHoldingrollerTo registrationrollerSeparation roller PS22J115B-13Multifeeder pick-up solenoid drive command(release direction; SL10BD)J115B-12Multifeeder pick-up solenoid drive command(pick-up direction; SL10FD)J115B-10Multifeeder pick-up relay solenoid drivecommand (MFRLSD)J115B-2J115B-7Multifeeder paper detection signal (MFS)Multifeeder pick-up clutch drivecommand (MFPCD)Pick-upmotorCOPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 5 PICK-UP/FEEDING SYSTEM5-20Download service manual and resetter printer at http://printer1.blogspot.com
