Lexmark MS81x Service Manual page 273

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If you have just replaced the media aligner roller, go to
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If you are only correcting the top margin skew, go to
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If you are correcting the bottom margin skew or both top and bottom margin skew, go to
Step A
Set the initial position of the media aligner roller plate using a 3mm hex wrench at the access hole indicated in the
following image (left), to give a position roughly 20.5mm as shown in the image below (right). This is the nominal point
and should minimize the amount of adjustment needed.
Continue to "Step B" on page
Step B
Print a copy of the Quick Test Page, and check the top alignment indicators printed on the test page. The difference in
the print location to the top edge of the paper between the left and right alignment indicators should be 0.5mm (one
dot) or less. Depending on the skew, turn the screw either clockwise or counterclockwise using a 3mm hex wrench,
and print a copy of the Quick Test Page to check the diamonds on the top and bottom margin. Continue adjusting the
screw as you check the results of each adjustment on a new test page until the top image skew is below 0.5mm. One
full 360-degree turn of the aligner screw will change the top edge skew by roughly 1mm (2 alignment indicator dots).
Adjustment is typically 0-2 rotations. More than 3-4 turns, in either direction from the 20.5mm nominal spot, should
not be necessary and may indicate other issues with the tray (such as problems with the back and side restraints), pick
tires, or transfer roll mounting. If the top and bottom skew are below 0.5mm, the alignment process is complete.
273.
Repair information
"Step A" on page 273.
"Step B" on page 273.
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"Step C" on page 274.