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Troubleshooting
68 DMX 400/430 Operator’s Manual
2. To adjust the Ribbon Shield (see Figure 5-2),
temporarily move the ribbon and loosen the screw
located on the left end of the Head-Support Plate,
(do not remove the screw). This end of the shield
can be adjusted up or down in order to even out the
ribbon tension across the full width of the ribbon.
Note: The mount screws that secure the Ribbon
Shield also secure the Head-Support Plate.
When loosening these screws, be aware that
both the shield and the plate may be affected.
3. Position the shield so that there is no rippling in the
ribbon as it travels from the Ribbon Supply Hub.
The ribbon should also be adjusted so that the
tension is even across the entire width of the ribbon.
4. Once the Ribbon Shield is properly positioned,
tighten the left screw that supports the Ribbon
Shield to the Printhead Mount Assembly. Re-check
the ribbon travel to make certain that the ribbon
tension is even across the entire width of the ribbon.
5. Feed three or four labels and observe the ribbon as
it travels from the Ribbon Supply Hub.
6. Feed the ribbon and paper out the front of the
Printer together and check the ribbon for drifting. If
the ribbon overlaps one edge of the paper stock, the
ribbon and paper are not following the same path.
In this case, the paper tracking may need to be re-
adjusted. If there is no ribbon overlap, then
continue.