Canon iR1600 Service Manual page 440

CHAPTER 13 TROUBLESHOOTING
E805
After the heat discharge fan drive signal is generated, the fan lock detection
signal does not arrive for a specific period of time.
Possible cause The fan wiring is faulty (short circuit, open circuit). The heat discharge fan
(FM101) is fautly. The DC controller PCB is faulty.
Remedy
1) Foreign matter
YES : Remove the foreign matter.
2) Wiring, Connector
NO : Correct the wiring.
3) Heat discharge fan (FM101), DC controller PCB
YES : End.
NO : Replace the DC controller PCB.
13-122
Is there foreign matter that prevents the rotation of the fan?
Is the connection and wiring of the connector (J951) of the heat dis-
charge fan (FM101) and the connector (J106) on the DC controller
PCB normal?
Try replacing the heat discharge fan (FM101). Is the fault cor-
rected?
COPYRIGHT© 2002 CANON INC. 2000 CANON iR1600/iR2000 REV.1 JAN. 2002