3–126OPERATIONS AND TIMINGCOPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)Code Cause• CPU or communication IC onsorter controller (faulty)• Feeding motor (fails torotate)• Staple guide bar swing motor(fails to rotate)• Stapler unit swing motor(fails to rotate)• Bin shift motor (fails torotate)• Bin motor (faulty)• Lead cam drive gear (dis-placement)Description• An error has been detected in thecommunication between the sorter andthe copier.• The clock signal from the motor isabsent for 250 ms or more.• The home position sensor does not turnOFF after generating the motor drivesignals for 2560 pulses.• The stapler unit swing motor sensordoes not turn OFF within 500 ms afterthe motor drive signal has been gener-ated.• The sensor does not turn ON within1000 ms after the stapler unit swingsensor has turned OFF.• The lead cam home position sensordoes not turn OFF within 2000 ms afterthe motor drive signal has been gener-ated.• The lead cam home position sensordoes not turn ON within 2000 ms afterthe lead cam home position sensor hasturned OFF.• The lead cam position sensor does notturn ON within 10 sec after the lead camposition sensor has turned OFF.E500E530E510E541E531E540D. Sorter Self Diagnosis