Canon FY8-13FW-000DADF-A1 Service Manual page 115

CHAPTER 5 TROUBLESHOOTING
3 Adjusting the Sheet-to-Sheet
Distance for Reduced Page
Composition Mode
Be sure to perform "adjusting the DADF
height" and "adjusting the original stop
position" before adjusting the sheet-to-sheet
distance for reduced page composition mode.
a. Bottom Pick-Up Mode
1) Shift bits 1 and 2 on the DADF controller
PCB (DSW1) to ON.
1
1 2
J15
CB1
7
J1
1
8
J10
1
DSW1
SW1
SW3
SW2
Figure 5-123
2) Place two A4 or LTR sheets of copy
2
paper (64 g/m ) on the original tray.
Select copy paper to suit the DADF
configuration.
For the A/B model, select A4.
For Inch model, select LTR.
3) Press the push switch (SW3) on the DADF
controller PCB once.
•The copy paper will be picked up and
stopped on the copyboard glass.
5-8
COPYRIGHT © 1998 CANON INC.
4 1 2 1 10
1 9
13
J8
J14
J2 J3
1
2
1
3
1
2
B12 B1
6 1
2 1
TP1 J12
A1 J9 A12
CANON DADF-A1 REV.0 DEC. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
4) Open the DADF slowly, and measure the
distance l
paper; then, close the DADF slowly.
1
1 2
J15
CB1
7
J1
1
8
J10
1
DSW1
SW1
SW3
SW2
J5
14
1 2
J13
J6 5) To adjust the sheet-to-sheet distance, use
the push switches (SW1 and SW2) on the
J7
DADF controller PCB.
J11
Each press on the push switch shifts the
1
3
copy paper (2 of Figure 5-125) by 0.34
mm.
When the correct position is attained, press
the push switch (SW3) once so that the
copy paper will be discharged and the new
setting will be stored.
Copyboard glass
[2]
Copy paper
Standard:
between the two sheets of copy
5
1 2 1 10
4
1
J14
J2 J3
B12 B1
2
TP1 J12
A1 J9 A12
Figure 5-124
[1]
Copy paper
5
= 0 ±3 mm
5
Figure 5-125
9
J5
13 14
J8
1 2
1
J13
2
1
J6
3
1
J7
2
J11
1
3
1