Datamax M-Class Mark II Maintenance Manual page 34

A worn platen (Section 2.1.3) or associated component (e.g., bearings); and,
•
A dirty or worn ribbon path component (Section 2.1.4).
•
If all items are in good order, then Ribbon Path alignment may be needed, as follows:
1. Load 4-inch (102 mm) media. Load a matching width ribbon, but do not secure the
leader to the Ribbon Take-up Hub. Instead, allow the media and ribbon to feed together
from the printer.
2. Disengage the Media Width Adjustment; see Section 2.3.
3. Press FEED several times to normalize the path of the ribbon and media.
4. Press FEED several more times, observing the ribbon for rippling and bagging as it
travels down from the Ribbon Supply Hub and under the Printhead Assembly. If smooth,
proceed to Step 5; otherwise, loosen the Ribbon Idler Screw then, while repeatedly
pressing FEED, slowly turn the Ribbon Idler Cam until the ribbon is dispensed smoothly.
Carefully tighten the Ribbon Idler Screw and feed several more labels to verify
adjustment; repeat if necessary.
Adjustments and Maintenance
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