Datamax M-Class Mark II M-4206 - Manual (Page 46)

40 M-4206
5.3 Printhead Burn Line Adjustment
The Burn Line has been adjusted at the factory for strict compliance using 6.5-mil (.0065 inch) media, ensuring print
quality across a majority of media types. In extreme cases, however, if media of a different thickness or rigidity is used
(for example, heavy tag stock), print quality can change. Typically, thicker media requires a slight forward adjustment,
while thinner media requires a slight backward adjustment.
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If you have questions, contact a qualified technician or Datamax Technical Support before proceeding.
To adjust the Burn Line:
1. Load the printer with your media (and ribbon, if required).
2. Loosen the two Locking Screws approximately ¼ turn
counter-clockwise.
3. Turn the Adjustment Screws counter-clockwise until the
burn line is past the platen roller vertex. Print a test label
(press the
PAUSE
+
FEED
buttons simultaneously).
The label should look light and uneven.
4. Tighten the Locking Screws just until they are ‘snug’ (tight
enough to remove any play in the printhead assembly, yet
loose enough to allow the Adjustment Screws to move the
printhead).
5. Turn each Adjustment Screw clockwise about a ¼ turn (or an 1/8 turn for finer adjustments, see note below). Print
another test label and examine the print quality. Repeat this step until the labels are produced with even print contrast
and acceptable print quality are produced.
; Note: When the Locking Screws are ‘snug’, turning the Adjustment Screws counter-clockwise will NOT move the printhead
outward; if you have adjusted the printhead too far inward, restart the entire procedure.
6. Tighten the Locking Screws. Print a final Test label to verify the adjustment.