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Select the print speed based on desired throughput and print
quality. If print quality is more important, reduce the print
speed, because a lower print speed increases the print quality
of labels. If throughput is more important, increase the print
speed as high as it will go to give you the needed print
performance. See "Increasing Throughput" for more
information.
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If the print quality is too light or too dark, adjust the print
contrast. The correct contrast setting is important because it
effects how well your bar codes scan and how long the
printhead lasts.
Be sure to check the print quality of bar codes with a bar code
verifier or scanner. If you do not have a verifier or scanner,
check the bar code visually. A bar code that is IN SPEC will
have complete bars and clear spaces. Small alphanumeric
characters will look complete. A bar code that is IN SPEC
may not look as good as one that is too dark, but it will have
the highest scan rate.
For highest scan rates, make sure there is
adequate white space before and after the
bar code. Also, a darker bar code does not
mean it will scan better.
Dark
IN SPEC
Light
9-2
Printer Optimization