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2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 6 SELF DIAGNOSIS
6-35 T
E805
The clock signal is absent for 5 sec or more after the fan drive signal has
been generated. The detail codes of the fans in question are as follows:
0001 developing fan (FM1)
0002 fixing fan (FM2)
0003 curl reducing fan (FM4)
0004 curl reducing fan (FM5)
0005 electrical unit fan (FM3)
Main cause The fan wiring is faulty (short circuit, open circuit). The fan is faulty. The
DC controller PCB is faulty.
Action
1. Foreign matter
Is there foreign matter that prevents the rotation of the fan?
YES: Remove the foreign matter.
2. Wiring, Connector
Are the wiring and connector of the fan normal?
Developing fan (FM1): DC controller PCB (J302B)
Fixing fan (FM2): DC controller PCB (J308B)
Curl reducing fan (FM4): DC controller PCB (J311B)
Curl reducing fan (FM5): DC controller PCB (J311B)
Electrical unit fan (FM3): main controller PCB (J1028)
NO: Correct the wiring and the connection.
3. Fan, DC controller PCB
Try replacing the fan. Is the problem corrected?
YES: End.
NO: Replace the DC controller PCB.