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You can also adjust the contrast online. See "Setting Contrast" in
Chapter 4. Your System Administrator can adjust the print
contrast by sending the print control packet. Refer to the optional
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
8-8 Care and Maintenance