Printhead assembly mechanical adjustment

A printhead needs to be correctly positioned after it has been removed. Use a pencil to mark the screw locations of the old printhead on the metal frame. Align the new printhead relative to the location of the old printhead.

Note: 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 mechanically 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.

Paper feed

 

Printhead

skew

misalignment

 

 

 

 

 

 

To adjust the printhead:

1.Enter the Diagnostics Menu. See “Entering Diagnostics menu” on page 3-5.

2.Select PRINT TESTS.

3.Select Tray 1.

4.Select Single.

5.Fold the printed test page on the left side so that a few millimeters of grid lines wrap around the outside of the fold. See photo below.

6.Fold a second vertical fold near the center so that the left side top edge aligns with the right side top edge.

Diagnostic aids 3-17

Page 81
Image 81
Dell 2330dn service manual Printhead assembly mechanical adjustment, To adjust the printhead