34. Pick-up fails. (multifeeder)COPYRIGHT © 1997 CANON INC. CANON NP6045 REV. 1 MAR. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 10 TROUBLESHOOTING10-94CausePick-up roller,Pickup/feedingroller, Sepa-ration rollerBelt, Gear,CouplingDC controllerPCBMultifeederpick-up clutch(CL7)Multifeederpick-upsolenoid (SL10)DC controllerPCBChecksIs the orientation of the pick-uproller, pick-up/feeding roller, andseparation roller correct?Is the drive of the main motortransmitted to the multifeeder pick-up assembly through the belt,gear, and coupling?Is the leading edge of copy paperas far as the registration roller?Set the tester range to 30 VDC,and connect the probes to J115B-1 (+) and J115B-2 (–) on the DCcontroller PCB. Does the voltagechange from 24 to 0 V when themultifeeder is selected and theCopy Start key is pressed?Connect the probes of the testerto J115B-11 (+) and J115B-12 (–)on the DC controller PCB. Doesthe voltage change from about 0to 24 and then to 0 V when theCopy Start key is pressed?Step123456YES/NONONOYESNOYESNOYESActionRe-install the applicablepart.Check the belt, gear,and coupling.See "The registrationroller fails to rotate."Replace the DCcontroller PCB.Replace the multifeederclutch (CL7).Replace the multifeederpick-up solenoid (SL10).Replace the DCcontroller
