COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR105 REV.0 JULY 2001CHAPTER 6 TROUBLESHOOTING6-1404.1.91 The fixing heater fails to operateMultimeter cover1) Is the multifeeder cover closed firmly?NO: Close the multifeeder cover firmly.Multifeeder cover open/closed sensor (PS56)2) Is the multifeeder cover open/closed sensor mounted correctly?NO: Mount the multifeeder open/closed correctly.YES: Replace the multifeeder open/closed sensor.Fixing/feeding unit releasing lever sensor (PS28)3) Is the fixing/feeding unit releasing lever sensor mounted correctly?NO: Mount the fixing/feeding unit releasing lever sensor.YES: Replace the fixing/feeding unit releasing lever sensor.Thermal switch (TP1)4) Slide out the fixing assembly, and connect the meter probes acrossboth terminals of the thermal switch (TP1). Is there electrical conti-nuity?NO: Replace the thermal switch unit.Fixing heater (H1, H2)5) Slide out the fixing assembly, and connect the meter probes acrossboth terminals of the fixing heater (H1, H2). Is there electrical con-tinuity?NO: Replace the fixing heater.AC driver PCB, DC controller PCB6) Is the voltage of the following connectors on the DC controller PCBabout 5 V?YES: Replace the AC driver PCB.NO: Replace the DC controller PCB.Heater (+)Main heater (H1) J505-A11Sub heater (H2) J505-A13
