COPYRIGHT © 1998 CANON INC. CANON DADF-A1 REV.0 DEC. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
5-13
CHAPTER 5 TROUBLESHOOTING
1) Prepare test strips for measuring feeding
power.
Cut an A4 or LTR sheet of copy paper (64
or 80 g/m
2
) into strips of about 70 mm;
then, paste tape on both sides of the end of
each, and put a hole.
c. Bottom Pick-Up Mode
70 mm
(approx.)
70 mm
(approx.)
1/3
1/3
1/3
Vertical direction
Copy paper (A4)
10 cm (approx.)
Put tape on both sides.
Hole
20 mm (approx.)
35 mm
300 mm (approx.)
Figure 5-132
1) Remove the screw, and detach the DADF
controller cover from the DADF.
2) Shift bit 2 of the DIP switch DSW1 on the
DADF controller PCB to ON. Select
continuous pick-up and delivery mode,
and turn on the copier.
DADF controller cover
Screw
Figure 5-133
3) Place five to ten sheets of copy paper (A4
or LTR) on the original tray, and press the
push switch SW3 on the DADF controller
PCB for continuous pick-up/delivery
operation.
ON
12345678
LED1
LED2
SW1
TP1
J10
J15
J1
CB1
J2
J14
J12
J11
J7
J6
J13
J5
J9
J8
J3
6
1
B12
B1
2
1
1
3
1
2
1
3
1
2
13
1
14
2
A1
A12
1
1
1
1
9
10
1
4
2
2
8
1
7
1
DSW1
SW2
SW3
Figure 5-134
4) After 2 min, press the push switch SW3
once again to end the operation.
5) Shift bit 2 of the DIP switch DSW1 on the
DADF controller PCB to OFF and bit 6 to
ON to select separation belt/feeding roller
cleaning mode (bottom pick-up) in service
mode.
Remove copy paper from the original tray.
6) Press the push switch SW3 on the DADF
controller PCB. Put the test strip into the
separation assembly at the front to measure
the feeding power at the front (Figure 5-
136).
ON
12345678
LED1
LED2
SW1
TP1
J10
J15
J1
CB1
J2
J14
J12
J11
J7
J6
J13
J5
J9
J8
J3
6
1
B12
B1
2
1
1
3
1
2
1
3
1
2
13
1
14
2
A1
A12
1
1
1
1
9
10
1
4
2
2
8
1
7
1
DSW1
SW2
SW3
Figure 5-135