COPYRIGHT © 2005 CANON ELECTRONICS INC. CANON DR-2580C FIRST EDITION APR. 2005 5-17CHAPTER 5 TROUBLESHOOTING2 Computer does not recognize the machineCause/Faultylocation Step Check Item Result ActionPower supply 1 Is the power supplied to themachine?NO Perform the actions insection 1: “No power.”Connection ofUSB interfacecable2 Is the USB interface cableproperly connected?NO Connect it properly.Computer, I/F card 5 Are the computer and I/F cardset properly?NO Use them properly.Table 5-4023 Motors do not operateCause/Faultylocation Step Check Item Result ActionPower supply 1 Is the power supplied to themachine?NO Perform the actions insection 1: “No power.”Connectors 2 Are the connectors for the mo-tor connected properly?NO Connect them properly.Transmissionsystem load3 Is the transmission systemdriven by the motor normal?Are such parts as gears andbelts normal?NO Remove the abnormalload.Replace needed parts.4 Is the operation normal whenchecking the sensor detectiondisplay in the service mode?NO Replace the sensor.Sensor5 Is the problem solved when per-forming “Document Sensor Ad-justment” in the service mode?YES End.Motor 6 Is the operation normal whenchecking the operation in theservice mode?NO Replace the motor.Control PCB 7 Is the problem solved when thecontrol PCB is replaced?YES End.Table 5-403
