Skew, All Edges; Skew, Top And Bottom Only - Lexmark 4049LMO - Optra Lx+ B/W Laser Printer Service Manual

4049-XXX
Inspect and clean the inside of the printer carefully and correct any
problems found.

Skew, all edges

If the test print frame is parallel to all edges of the page but the mar-
gins are not all the same width.
If the test print frame is not parallel to the left and right edges of the
paper, the paper has skewed in the paper path. Check the paper
path for obstructions. Make sure the paper in the tray is undamaged
and loaded properly, and the tray side restraint is properly adjusted.
Check the prealigner, drive, and auxiliary rollers, springs, and
backup rollers for dirt, wear, or damage; refer to the parts catalog for
repair kits for broken bellcrank spring attachment hooks on the side-
frame. Make sure all the bellcrank assemblies pivot freely. Check the
gear train for damage or binds.

Skew, top and bottom only

If the test print frame is parallel to the left and right edges of the
paper but not parallel to the top and bottom, the printhead skew
needs to be adjusted. See
4-9.
2-33
"Print Registration" on page
"Printhead Skew Adjustment" on page
3-12.