Canon GP335 Service Manual page 506

CHAPTER 14 TROUBLESHOOTING
37 E805 (The fan rotation is faulty.)
Cause
Connector
DC controller
PCB
Fan
Notation
FM2
FM3
FM4
FM5
FM6
FM7
FM8
FM10
FM11
FM12
FM13
FM14
FM15
FM16
FM17
FM18
14-88
Step
1 Turn off and then on the main
power. Is the problem corrected?
2 Check the details of the error
history in service mode (Table 10-
201). If no detail code is indicated,
suspect the feeder fan (FM1) or the
reversing guide cooling fan (FM9).
Is the connection of these fans
normal?
If a detail code is indicated, is the
connection of the indicated fan
good?
3 Is the drive signal of the fan
identified in the previous step about
22 VDC while the fan is rotating or
about 12 VDC otherwise?
Detail code Normal rotation signal
0002 FM2LK
0003 FM3LK
0004 FM4LK
0005 FM5LK
0006 FM6LK
0007 FM7LK
0008 FM8LK
0010 FM10LK
0011 FM11LK
0012 FM12LK
0013 FM13LK
0014 FM14LK
0015 FM15LK
0016 FM16LK
0017 FM17LK
0018 FM18LK
COPYRIGHT © 1999 CANON INC. CANON 405/335 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Check
J107-A5
J107-A8
J112-B8
J112-A8
J112-A11
J112-B14
J112-B17
J118-2
J107-A5
J104-A6
J04-A9
J107-A5
J107-A8
J119-8
J112-B11
J104-A12
Yes/No Action
YES End.
NO Correct the connection.
NO Replace the DC
controller PCB.
YES Replace the fan
Jack number I/O>DC-CON>P011
bit0
bit1
bit2
bit3
bit7
bit4
bit5
bit11
bit12
bit13
bit14
bit8
bit9
bit10
bit6
bit15