6. E0057. E0068. E010CHAPTER 11 TROUBLESHOOTING11-86 COPYRIGHT © 1997 CANON INC. CANON NP6560/NP6360/NP6260 REV. 0 NOV. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CauseFixing cleaningbeltCleaning beltdetecting leverFixing/feedingunitDC controllerPCBSensor (PS11)ChecksIs the cleaning belt of the fixingassembly taken up?Is the position of the cleaning beltdetecting lever correct?Is the fixing/feeding unit set in themachine correctly?Is the voltage between J108-A13(+) and J108-A12 (–) on the DCcontroller PCB about 5 V? Is thecleaning belt length sensor (PS11)normal? (See the instructions onhow to check photointerrupters.)Step1234YES/NOYESNOYESNOYESActionReplace the cleaningbelt.Correct the position ofthe lever.The connector at therear of the fixing/feedingunit may have poorcontact; make a check.Replace the DCcontroller PCB.Replace the sensor.CauseDC controllerPCBMain motor(M1)ChecksIs the connector of the main motorconnected?Does the voltage between J111-B4 (+) and J111-B1 (–) on the DCcontroller PCB change from 0 toabout 5 V when the Copy Startkey is pressed?Replace the main motor. Is theproblem corrected?Step123YES/NONONOYESActionConnect the connector.Replace the DCcontroller PCB.End.CauseFixing/feedingconnectorFixing/feedingunit sensor(PS53)DC controllerPCBChecksIs the connector fixed in positioncorrectly? Is it securely connectedto the copier’s connector?Is the fixing/feeding unit sensor(PS53) normal?Step12YES/NONONOYESActionCheck the connector. Fixit firmly in position ifnecessary.Check the PS53 andconnector.Replace the DCcontroller PCB.
