CHAPTER 11 TROUBLESHOOTINGCOPYRIGHT © 1997 CANON INC. CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-8112 E20213 E203CauseScanner homeposition sensor(PS1)DC controllerPCBChecksIs the scanner at home positionwhen ‘E202’ is indicated?Is the scanner home positionsensor normal? (See theinstructions on how to checkphotointerrupers.)Step12YES/NONONOYESActionSee “The scanner failsto move forward/inreverse.”Check the wiring fromthe DC controller PCB tothe sensor; if normal,replace the sensor.Replace the DCcontroller PCB.CauseScanner homeposition sensor(PS1)DC controllerPCBChecksDoes the scanner move forwardfrom when the Copy Start key ispressed to when ‘E202’ is indicated?Is the scanner home positionsensor normal? (See theinstructions on how to checkphotointerrupers.)Step12YES/NONONOYESActionSee “The scanner failsto move forward/inreverse.”Check the wiring fromthe DC controller PCB tothe sensor; if normal,replace the sensor.Replace the DCcontroller PCB.
