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Adjusting the Print Contrast
You may need to adjust the print contrast if the printing is too light
or too dark. Having the correct print contrast is important
because it affects how well your bar codes scan and how long
your printhead lasts.
Using a thin screwdriver, turn contrast knob clockwise for darker
print; turn counter-clockwise for lighter print.
You only have to turn the contrast
adjuster slightly.
Your System Administrator can
adjust the print contrast by
sending the print control packet.
Refer to the Packet Reference
Manual for more information. We
recommend you check the bar
code print quality with a bar code
verifier. If you do not have a bar
code verifier or scanner, check the
bar code visually. A bar code that
is in spec has complete bars, clear
spaces, and small alphanumeric
characters look complete. An in
spec bar code may not look as
good as one that is too dark, but it
has the highest scan rate.
Dark
IN SPEC
Light
Care and Maintenance 5-9
Rev. B 12/97