Canon imageRUNNER ADVANCE C255 Series, Service Manual, Page: 325 / 987

Pickup Feed System
Image Position Adjustment
NOTE:
By making an adjustment on the 1st side, the margin on the 2nd side is also changed.
If the difference between the 1st and the 2nd sides is +/- 0.5 mm or less, do not adjust the 2nd side.
Reference: Standard value
Leading edge: 4.0 + 1.5/- 1.0 mm (front side, back side)
Left edge: The left edge margin differs between A4 and LTR
• A4 = Front side: 2.5 mm +/- 1.5 mm, Back side: 2.5 +/- 2.0 mm
• LTR = Front side: 4.2 mm +/- 1.5 mm, Back side: 4.2 +/- 2.0 mm
1. Set the following values for the service modes.
• COPIER > TEST > PG > TYPE = 5
• COPIER > TEST > PG > COLOR-K = 1
• COPIER > TEST > PG > COLOR-Y/M/C = 0
• COPIER > TEST > PG > 2-SIDE = 1
• COPIER > TEST > PG > PG-PICK = each paper source
2. Press the Start key.
A test print (2-sided print) is output from each paper source.
3. Check the output test print.
NOTE:
At 2-sided printing, paper is output with the 1st side up and 2nd side down.
When checking the leading edge margin on the 1st side, check the up side of paper, and check the trailing margin with respect to
the feed direction.
When it is out of the specified range, perform adjustment of each cassette in the following order.
Order Cassette 1 Cassette 2/3/4
1 Software adjustment Hardware adjustment
2 - Software adjustment
■ Hardware adjustment
1. Pull out the Cassette 1.
5. Adjustment
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