CHAPTER 13 TROUBLESHOOTINGCOPYRIGHT © 2002 CANON INC. 2000 CANON iR1600/iR2000 REV.1 JAN. 2002 13-125E531 The stapler does not leave the stapling home position sensor (S13) within0.5 sec after the stapler motor (M6) is rotated CW.The stapler does to return to the home position sensor (S13) within 0.5 secafter the stapler motor (M6) is driven CW and, in addition, it does not re-turn to the sensor within 0.5 sec after the motor is driven CCW thereafter.Possible cause The stapler motor (M6) is faulty. The stapler home position sensor (SW1) isfaulty. The stapler harness is faulty. The finisher controller PCB is faulty.Remedy1) WiringIt the wiring between the stapler unit and the finisher controllerPCB normal?NO : Correct the wiring.2) Stapler unit, Finisher controller PCBTry replacing the stapler unit. Is the fault corrected?YES : End.NO : Replace the finisher controller PCB.E537 The front aligning plate does not reach home position when the front align-ing motor (M3) is driven for a specific time.The front aligning plate does not leave home position when the front align-ment motor (M3) is driven for a specific time.Possible cause The front alignment motor (M3) is faulty. The front aligning plate home po-sition sensor (S6) is faulty. The sensor connector is disconnected or has anopen circuit. The front alignment motor relay harness if faulty. The frontaligning plate is subjected to an abnormal load. The finisher controller PCBis faulty.Remedy1) Front aligning plate home position sensor (S6)Check the front aligning plate home position sensor (S6). Is the sen-sor normal?NO : Replace the sensor.2) wiringIs the wiring between the finisher controller PCB and the frontalignment motor (M3) normal?NO : Correct the wiring.3) Front aligning plateIs the rack riding over the collar of the roll?YES : Correct it.
