11-94CHAPTER 11 TROUBLESHOOTINGCOPYRIGHT © 1997 CANON INC. CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)31 The registration roller fails to rotate.CauseBelt, gear,couplingPre-registrationsensor (PS9),horizontal regis-tration papersensor (PS14)Registrationclutch (CL1),horizontalregistrationclutch (CL8)DC controllerPCBChecksIs the drive of the main motortransmitted to the registrationroller through the belt, gear, andcoupling?Are the pre-registration sensorand the horizontal registrationpaper sensor normal? (See theinstructions on how to checkphotointerrupters.)Set the meter to the 100VDCrange, and connect its probes tothe following connectors on theDC controller PCB. Does thevoltage change from 0 to about 24V as soon as the registration rollerstarts to rotate?Clutch + -CL1 J103-A2 J103-A1CL8 J103-A4 J103-A3Step123YES/NONONOYESNOActionRe-install the belt, gear,and coupling.Check the wiring fromthe DC controller to thesensor; if normal,replace the faulty sensor.Check the wiring fromthe DC controller PCB tothe clutch; then, replacethe clutch.Replace the DCcontroller PCB.Download Service Manual And Resetter Printer at http://printer1.blogspot.com
