Datamax E-Class E-4304 - Manual (Page 52)

42 E-4203/E-4204/E-4304
5.4 Fine Printhead Adjustment
A fine printhead adjustment set screw is located on top of the printhead
carrier assembly that can be used for adjusting print quality. This
adjustment is set at the factory and should not need further adjusting;
however, with different types and thickness of media some adjustment
may be necessary.
To adjust the printhead, turn the Set Screw until optimum print quality
is obtained, (some trial and error may be necessary). Do not over tighten
the Set Screw.
Note: It is not necessary to remove the Ribbon Handler Assembly, (if
equipped). An access hole in the assembly is provided for
adjustments.