Canon DADF-J1 Service Manual page 179

CHAPTER 5 TROUBLESHOOTING
6) To adjust the original stop position, use
the push switches SW3 and SW4 on the
ADF controller PCB.
A single press on each switch will shift
the original stop position by a distance
of 0.5 mm. When the correct stop posi-
tion is attained, press the push switch
(SW2).
• The original will be delivered, and the
new position will be stored in memory.
Switch
SW3
SW4
T05-101-03
Holding down on the push
switch will not cause more than
a single shift.
EX
If the copy paper is stopped 12 mm from
the copyboard glass,
Close the DADF slowly leaving the copy
paper on the copyboard glass.
To shift the stop position 1 mm to the left,
the following is true:
1 0.5 (adjustment interval) = 2
Hence, press the push switch SW4 twice,
and then press the push switch SW2.
• The copy paper will be delivered, and
the new setting will be stored in memory.
5-22
Direction of shift
Right
Left
COPYRIGHT © 2001 CANON INC.
J1
FU2
J2
J4
IC1
FU1
SW1
J5
LED2
SW4SW3SW2
J3
J6
SW2
SW3
SW4
F05-101-49
Original
SW4 SW3
F05-101-50
2000 2000 2000 2000 CANON DADF-J1 REV.0 MAR.2001
J14
J13
J12
J7 J8 J9 J10 J11