COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)Guide to TablesThe tables used in this Service Handbook have been prepared from flow charts; studythe sample table below.AC power is absent.n To find the cause (faulty part) for a single problem, see the items under “Cause.” For“AC power is absent,” the cause may be the power plug, covers, or power source.n To find checks to make or actions to take for a single problem, make checks in theorder given, answer the question Yes or No, and take the action given; move onto thenext step as necessary.n Checks on the voltage using a tester call for special note; the description “Check thevoltage between J 109-1 (+) and J 109 (-) on the DC controller PCB” means that thepositive probe of the tester should be connected to J 109-1 (+) and the negative probe,to J 109-2 (-).CausePower plugCoversPower sourceStep1234Yes/NoNONONOYESActionConnect the plug.Close the door and/orcover properly.The problem is not ofthe copying machine;advise the user.Check step 6) andonward.CheckIs the power plug connected to theoutlet?Are the front door and/or deliverycover closed properly?Is the rated voltage (100 VAC) pre-sent at the outlet?Is the rated voltage present betweenJ 1-1 and J 1-2?YESYESYESNOResult ActionConnect thepiug.The problem isnot of the copy-ing machine;advise the user.Close the doorand/or coverproperty.CheckAre the frontdoor and/ordelivery coverclosed property?Is the ratedvoltage (100VAC) presentat the outlet?Is the powerplug con-nected to theoutlet?StepNONO321n The left door switch goes OFF and, at the same time, the laser shutter closes assoon as the front left door is opened; as such, put the door switch actuators into leftdoor switch and laser shutter if the machine needs to be opened with its front leftdoor open. DO NOT BLOCK THE LASER PATH WITH LIGHT REFLECTINGOBJECTS.Download free service manual at http://printer1.blogspot.com
