Canon DADF-B1 Service Manual page 92

3 Adjusting the Position of the
Reversal Delivery Flapper
If a double-sided original tends to jam or
fold into a Z in the duplexing feeding
assembly, adjust the position of the reversal
delivery flapper as follows:
1) Remove the four mounting screws, and
detach the front cover. (See A. "External
Covers" under I. "Basic Construction.")
2) Open the reversal delivery unit cover [1],
and loosen the screw [2] shown in the
figure.
[1]
Figure 5-105
3) Open the ADF slowly, and turn the
reversal delivery
counterclockwise in the direction of [A]
(working from where the reversal delivery
unit cover was) so that the reversal delivery
flapper [4] is as shown .
[A]
Figure 5-106
COPYRIGHT © 1999 CANON INC.
[2]
roller [3]
[1]
[3]
[4]
CANON DADF-B1 REV.0 APR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 5 TROUBLESHOOTING
4) If is not as indicated, turn the adjusting
screw [5] to adjust the position of the
reversal delivery flapper.
If it is too narrow, turn the adjusting screw
clockwise; if too wide, on the other hand,
turn it counterclockwise.
Standards: = 0.8 to 1.3 mm
(THICKNESS GAUGE)
If is not as indicated, the following
symptoms tend to occur; be sure to make
adjustments so that it is as indicated:
· If it is less than 0.8,
double-sided originals will tend to move
askew.
· If it is more than 1.3,
originals with a bent leading edge
(downward) tend to get hooked on the
reversal inlet assembly.
5) Tighten the screw [2] of the reversal
delivery unit, and close the reversal
delivery unit cover [1].
6) Mount the front cover.
Figure 5-106-1
[5]
5-3