Canon DADF-J1 Service Manual page 186

5) Press the push switch (SW2) on the
ADF controller PCB.
• The LED will indicate the following in
sequence, showing the result at the
end: 1, 2, 3, 4, 5, 6, 7, 8, 9, A.
Result LED2
indication
OK
(0)
NG
(F)
T05-102-02
6) At the end of the operation, press the
push switch (SW2) on the ADF control-
ler PCB once again.
If the Result is NG
Check the condition of each of the sen-
sors (S1 through S9), and replace the sensor
considered to be faulty.
The condition of a sensor is indicated in
the following three levels:
Condition LED2
indication
Good ( )
Alarm 1 ( )
Alarm 2 ( )
Faulty (F)
T05-102-03
COPYRIGHT © 2001 CANON INC.
Description
All sensors
(S1 through S9 are
normal).
Any of the sensors (S1
through S9) is faulty.
Check or
replace
No
No
Yes
Yes
2000 2000 2000 2000 CANON DADF-J1 REV.0 MAR.2001
CHAPTER 5 TROUBLESHOOTING
J1
FU2
J2
J4
IC1
FU1
SW1
J5
LED2
SW4SW3SW2
J3
J6 J7 J8
SW2
F05-102-05
J14
J13
J12
J9 J10 J11
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