20. The pick-up operation fails (from cassette).21. The pick-up operation from the multifeeder fails.COPYRIGHT © 1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-73CHAPTER 10 TROUBLESHOOTINGChecksIs the paper inside the cassetteunder the claws?Slide out and then in the cassette.Is the problem corrected?Does the pick-up roller rotate afterthe copy Start key is pressed?Is the life of the pick-up roller orthe pick-up separation pad at itslimit?Replace the DC controller PCB. Isthe problem corrected?CausePaper (insidecassette)CassettePick-up clutch(CL2)Pick-up roller,pick-upseparation padDC controllerPCBStep12345ResultsNOYESNOYESYESActionAdvise the user on thecorrect method of settingpaper.End.• Advise the user onthe correct way to setthe cassette.Check the wiring fromthe connector (J303) onthe DC controller PCBand the pick-up clutch; ifnormal, replace theclutch.Replace the pick-uproller or the pick-upseparation pad.End.ChecksSelect the multifeeder, and pressthe copy Start key. Does themultifeeder pick-up roller rotate?Does the paper guide plate springup when the Copy Start key ispressed?Connect the (+) probe of themeter to J306-11 on the DCcontroller PCB. Does the voltagechange from about 24 V to about0 V when the Copy Start key ispressed?CauseMultifeederpick-up clutch(CL3)Paper guideplate camMultifeederpick-upsolenoid (SL2)DC controllerPCBStep123ResultsNOYESYESNOActionCheck the wiring; ifnormal, replace CL3.Check the position of thepaper guide plate camand separation pad; asnecessary, adjust orreplace.Check the wiring; ifnormal, replace SL2.Replace the DCcontroller.
