4-2 Service Manual
4506-1xx
Adjustment procedures
Printhead assembly adjustment
A printhead needs to be correctly positioned after it has been removed. Align it to the frame or use the same
position as the removed printhead.
Skew is caused by a sheet being fed through the printer while misaligned. The entire image is rotated relative to
the sheet edges. However, a misaligned printhead causes the horizontal lines to appear skewed while the
vertical lines remain parallel to the vertical edges.
There are no adjustments for skew. Check the pick roll (paper pick assembly) for wear, the paper path for
obstructions, the fuser for proper setting, and the tray paper guides for fit to the media.
To align the printhead:
1. For the E120n model—Enter the Diagnostics Menu. See “Service menus—E120n” on page 3-3, and
print the Cont Prt Simplex Tray 1 (Quick Test).
Note: In order to limit the number of printouts, place only one sheet at a time in the main tray.
For the E120 model—The E120 can be adjusted in the same manner as the E120n. However, this model
does not print the same sheet. You may have to find or create a page with lines going horizontally across
the page. Otherwise, follow the same procedure to adjust the printhead.
2. Fold the printed test page on the left side so that a few millimeters of grid lines wrap around the outside of
the fold.
3. Fold a second vertical fold near the center so that the left side top edge aligns with the right side top edge.
Skew Printhead
misalignment
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Weight and Dimensions
