Canon imageRUNNER ADVANCE C350 series Service Manual page 499

5
Adjustment > Document Exposure System > Original Exposure and Feed System (Reader) > ADF Unit
■ ADF Unit
● Prepare before Adjustment
Prepare a test chart. A test chart is made when there is no test chart.
A test chart is drawn the rectangle that the end of 4 is smaller by 10 mm than a paper, and a
test chart is made in the form of A4 or LTR.
NOTE:
Write a character and a mark to know the direction of the copied image.
(Make sure that the face, back, leading edge and trailing edge of paper can be
indetified.)
10 mm
● Procedure after Replacement
CAUTION:
When the ADF has been replaced or removed from the reader, the following adjustment
is necessary.
5 Adjustment > Document Exposure System > Original Exposure and Feed System (Reader) > ADF Unit
10 mm
10 mm
10 mm
F-5-17
Adjustment of the Degree of a Right Angle
1) Set a test chart on ADF, and give one sheet of copy.
2) Confirm the degree of a right angle of the image on the leading edge of the test chart and
the copied form.
Measure the dimension of A and B at the leading edge of the copied form.
When the amount of skew is not in the following standard, adjust it from the step 3).
• Standard Value: A - B = 0 +/- 1.5 mm
A
Feed direction
B
3) Loosen the 4 Fixing Screws of the Right Hinge, and then move the hinge to adjust the
squareness.
4) After completion of the adjustment, tighten the 4 Fixing Screws of the Right Hinge you
loosened in step 3).
Copy of the test chart
F-5-18
[2] [2]
4x
[1]
5-10
[1]
F-5-19
5-10