COPYRIGHT © 2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS4-38 T4.2.1 AC power is absentPower plug1) Is the power plug connected to the power outlet?NO: Connect the power plug.Power source2) Is there rated AC voltage present at the power outlet?NO: The problem is not in the machine. Advise the user.Leakage breaker3) Has the leakage breaker located in the left bottom of the machineturned on (i.e., is the switch at the marking)?NO: Remove the cause that turned on the leakage breaker, and shift theswitch of the leakage breaker to the | marking.Power cord, Line noise filter (LF1)4) Try replacing the power cord/line filter. Is the problem corrected?NO: Check the wiring of the AC power supply line and the connectorsfor poor contact.Main power switch (SW1), Wiring5) Is the resistance 0ΩΩΩΩΩ when the switch is turned on and ∞Ω∞Ω∞Ω∞Ω∞Ω when theswitch is turned off?NO: Replace the power switch.YES: Check the wring of the AC power line and the connectors for poorcontact.4.2.2 DC power is absentAC power supply1) Is there rated AC voltage between connectors J4001-1 and J4001-2on the DC power supply PCB?NO: See “AC power is absent.”Fuse (F4001)2) Is the fuse on the DC power supply PCB blown?YES: Remove the cause of the fuse, and replace the fuse.
