Canon DADF-AV1 Service Manual page 96

7. Place the White Plate on the Copyboard Glass by
aligning it with the Index Sheet.
8. Close the DADF, and then open it again.
9. Press the White Plate upward as shown in the figure
below.
CAUTION:
If the White Plate is pressed downward, it is placed on
the Index Sheet, so be sure to press it upward.
10. With the DADF closed, check that the White Plate is
not placed on the Index Sheet as shown in the
figures.
CAUTION:
Be sure that there is no gap between the White Plate
and the Index Sheet. As a guide, it should be 0.3 mm
or less.
White Plate Index Sheet
Reader Unit
White Plate Index Sheet
Reader Unit
90
6. Installation
White Plate Index Sheet
Reader Unit
White Plate Index Sheet
Reader Unit