Canon imageRUNNER ADVANCE C255 Series, Service Manual, Page: 324 / 987

Original Exposure System
Right angle adjustment
Place a test chart on the ADF and make a copy. Then measure A and B dimensions of the leading edge of paper. If the skew
amount is not within the standard, perform this adjustment.
• Standard value: A - B = 0 +/- 1.5 mm
B
A
Copy of the test chart Feed direction
1. Loosen the 4 Right Hinge Fixation Screws and make the adjustment by moving the hinge installation position back
and forth.
4x
[1] [1]
[2] [2]
2. Place a test chart on the ADF again and make a copy again.
3. Repeat the steps 1 to 2 until the skew amount falls within the specified value.
4. When the skew amount is within the range, tighten the Fixation Screws you loosened.
5. Adjustment
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