Canon DADF-P1, Service Manual

Page: 79 / 90

Chapter 4
4-3
F-4-8
2) If the height is inappropriate, adjust it using the right hinge height adjust-
ing screw [1].
Loosen the nut [2] before adjustment, and tighten it after adjustment.
F-4-9
* Turning the adjusting screw clockwise reduces clearance A.
* Turning the adjusting screw counterclockwise increases clearance A.
3) Perform step 1 of the left hinge height adjustment procedure. If the height
is inappropriate, adjust it again.
4.3.1.3 Perpendicularity Adjustment
0011-2187
1) Place the test chart on the DADF and take a copy of it.
MEMO
The test chart is printed on the back cover of the Installation Procedure. Copy
or clip it.
2) Check the squareness of the image on the copy. Measure the dimensions
A and B at the leading edge of the test chart and the dimensions A' and B' at
the leading edge of the copy. If it not (A-B) = (A'-B'), perform steps 3 and
later.
F-4-10
3) Loosen the right hinge clamping screw [1], and slide the hinge back and
forth with reference to the graduation marks.
F-4-11
4) Tighten the hinge clamping screw loosened in step 3).
MEMO:
If the chart is not available, the image output by performing the following
steps can be used for squareness adjustment.
1) Enter the service mode.
Press the User Mode key "
", 2 key, 8 key, User Mode key " " on the
operation panel of the host machine.
2) Using the arrow keys on the operation panel, display "SCAN".
3) Press the OK key.
4) When "#SCAN SW" appears, press the OK key.
5) Using the left and right arrow keys, move the cursor to Bit-4 (fifth bit from
right) in the Bit SW layout and then press the 1 key. Make sure that the
switch bit indication changes as shown below.
"#SCAN SW 001 10000000">"#SCAN SW 001 10010000"
6) Press the OK key.
7) Make sure that "SCAN SW 002 10000000" is displayed, and then press
the Reset key to exit the service mode.
8) Perform copy operation without paper.
9) The following image is output:
[1]
[3]
A
[2]
B
A
B
A