CHAPTER 11 TROUBLESHOOTINGCOPYRIGHT © 1997 CANON INC. CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-103CauseBeltPedestal rightdoorVertical pathroller 3 driveclutch (CL1)Deck verticalpath roller driveclutch (CL3)Pick-upassemblyDeck pick-upclutch (CL2)Pedestalcontroller PCBDC controllerPCBChecksDoes the Add Paper indicatorremain on?Is the belt for drive attachedcorrectly?Is the right door of the pedestalfully closed?Is the right door of the pedestallocking the deck vertical pathroller and the vertical path roller 3in place?Open the right door of thepedestal, and press the CopyStart key with a screwdriver set inthe door switch. Do the deckvertical path roller (CL3) and thevertical path roller 3 (CL1) rotate?Is the leading edge of the copypaper as far as the registrationroller assembly?Is the copy paper as far as thevertical path roller assembly?Open the right door of thepedestal, and press the CopyStart key with a screwdriver set inthe door switch. Does thefeeding/separation roller rotate?Set the meter to the 100VDCrange, and connect its probes toJ110-B1 (+) and J110-B2 (-;CL2D*) on the pedestal controllerPCB. Does the voltage changefrom about 24 to 0 V when theCopy Start key is pressed?Replace the pedestal controllerPCB. Is the problem corrected?Step12345678910YES/NOYESNONONONONONOYESNOYESNOActionSee “The Add Paperindicator fails to turn off.”Re-attach the belt.Close the door.Check the lockingspring.Check the wiring fromthe pedestal controllerPCB to the clutch; if nor-mal, replace the clutch.See “The registrationroller fails to rotate.”See “Pick-up fails.(cassette)”Go to step 11.Check the wiring fromthe pedestal controllerPCB to the clutch; ifnormal, replace theclutch.End.Replace the DCcontroller PCB.2 Pick-up fails. (pedestal)
