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Troubleshooting
64 Allegro2
b. 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 screws). 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
effected.
c. Position the shield so that there is no rippling or bagging
in the ribbon as it travels from the Ribbon Supply Hub.
The ribbon should also be adjusted so that tension is
even across the entire width of the ribbon.
d. 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.
d. Feed three or four labels and observe the ribbon as it
travels from the Ribbon Supply Hub.
f. 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.
3. Fine Printhead Alignment
Print a few rotated bars and inspect the print quality. With a
1/16" (1.59mm) hex key, turn the left and right Head Adjustment
Screws counter-clockwise approximately 1/4− 1/2 turn until the
desired print quality is achieved. Set the Media Adjust Cam so
that the number in the top right corner matches the width (in
inches) of the stock being used. Finally, turn the left Head
Adjustment Screw 1/4 turn counter-clockwise.