7-146 COPYRIGHT © 2001 CANON INC. CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS6 Delivery Vertical Path, Duplexing Reversing Assembly, and HoldingTray Front Feeding AssemblyCauseDelivery paperdeflectingplateDeliveryvertical pathrollerVertical path 1sensor,Vertical path 2sensorInlet rollerFeeding roller,Outlet rollerDuplexing unitreversalsensorFeeding driveassemblyDuplexingpaper deflect-ing plateHolding trayfront feedingsensor 1, 2Step123456789Yes/NoNONONONONONONONOYESNOActionCheck the delivery paperdeflecting solenoid(SL14).Check the waste tonerfeeding motor driveassembly; if normal,check the reversal driveclutch (CL16).Check the lever and thewiring; if normal, replacethe sensor.Check the duplexing unitreversing motor driveassembly.Check the waste tonerfeeding motor driveassembly; if normal,check the reversal driveclutch (CL16).Check the lever and thewiring; if normal, replacethe sensor.Check the duplexingfeeding motor driveassembly.Check the duplexingpaper deflecting platesolenoid (SL11).Check the guide platesand the duplexing unitfeeding assembly forforeign matter and defor-mation.Check the lever and thewiring; if normal, replacethe sensor.Delivery vertical path assemblyHolding tray pre-feeding assembly Duplexing unit reversing assemblyChecksDoes the delivery paper deflectingplate operate normally?Does the delivery vertical path rolleroperate normally?Does each sensor operate normally?Does the inlet roller operate nor-mally?Does the feeding/outlet roller operatenormally?Does the duplexing unit reversalsensor operate normally?Does the feeding assembly operatenormally?Is the duplexing paper deflectingplate operating normally?Does the holding tray front feedingsensor (PS8, PS9) operate normally?