Datamax M-Class Mark II M-4206 Operator's Manual page 17

5. Close the Printhead Assembly and press down until it locks into place.
6. Close the cover and press the button several times to position the media and ensure proper tracking.
FEED
If the printer does not correctly sense the top of each label, as denoted by the light, it may be necessary to
ERROR
perform the Calibration Procedure, see section 4.7.1.
Note: The printer is factory set to use 4-inch media (and ribbon, if thermal transfer equipped). When using a different width of
media/ribbon, please refer to section 5.2.
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