26. The fixing heater fails to operate.27. The pre-exposure lamp fails to turn on.28. The add paper indicator fails to turn off.COPYRIGHT © 1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)10-76CHAPTER 10 TROUBLESHOOTINGChecksIs E000 indicated?Replace the DC control PCB. Isthe problem corrected?CauseDC controllerPCBFixing heaterdriverStep12ResultsYESYESNOActionSee the descriptionsunder “E000.”End.Replace the fixing heaterdrive PCB.ChecksDetach the drum cartridge, andexecute ‘No. 407’ in service mode.Does the pre-exposure lamp turnon normally?Replace the pre-exposure lamp.Does it turn on normally?CauseDC controllerPCBPre-exposurelampDC controllerPCBStep12ResultsNOYESNOActionReplace the pre-exposure lamp.End.Check the wiringbetween the pre-exposure lamp and theDC controller PCB; ifnormal, replace the DCcontroller PCB.ChecksIs the cassette set correctly?Is the following sensor normal(p. 10-39~10-41)?PS4: cassette paper sensorPS2cu: cassette 2 paper sensor(accessory)PS4cu: cassette 3 paper sensor(accessory)CauseCassettePaper sensorDC controllerPCBStep12ResultsNONOYESActionSet the cassettecorrectly.Check the lever andwiring; if normal, replacethe sensor.Replace the DCcontroller PCB.
