Canon imageRUNNER ADVANCE DX C5870i Service Manual page 402

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■ Leading Edge Margin Adjustment

There are two adjustment methods: One for reading the front side (Scanner Unit on the Reader side) and another for reading the

back side (Scanner Unit on the ADF side).

Adjustment of the Paper Front Reading

1. Prepare a test chart created below.

"Creating the Test Charts for Image Position Adjustment" on page 386

2. Set the following service mode to "1".

FEEDER > OPTION > SKW-SW

3. Place a test chart on the ADF and perform 1-sided copy.

4. Overlay the copied paper onto the test chart.

5. Check that the leading edge of the copied image is within the standard range.

• Standard: A =< 1 mm

6. If it is not within the standard range, adjust the image position in the following service mode.

FEEDER > ADJUST > DOCST

• If the copied image is displaced toward the trailing edge: Increase the value (move the image toward the leading edge)

• If the copied image is displaced toward the leading edge: Decrease the value (move the image toward the trailing edge)

Amount of change per 1 setting value 0.1 mm

< If the image is displaced toward trailing edge >

Leading edge of

Image leading edge of

Feed direction

< If the image is displaced toward leading edge >

Image leading edge of

Leading edge of

Feed direction

6. Adjustment

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