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Glossary
alphanumeric Indicating letters, numerals, and characters such as punctuation
marks.
backfeed Backfeed is when the printer pulls the media and ribbon (if used)
backward into the printer so that the beginning of the label to be printed is
properly positioned behind the printhead. Backfeed occurs when you’re
operating the printer in tear-off, peel-off, or cutter mode.
bar code A code by which alphanumeric characters can be represented by a series
of adjacent stripes of different widths. Many different code schemes exist,
such as the universal product code (UPC) or Code 39.
calibration (of a printer) A process in which the printer determines some basic
information needed to print accurately with a particular media/ribbon
combination. To do this, the printer feeds some media and ribbon (if used)
through the printer and senses whether to use the direct thermal or thermal
transfer print method, whether continuous or non-continuous media will be
used, and (if non-continuous media) the length of individual labels/tags.
character set The set of all letters, numerals, punctuation marks, and other
characters that can be expressed by a particular barcode.
check digit A character added to a barcode symbol that indicates to the scanner
that it has read the symbol correctly.
continuous media Label or tagstock that has no web (space between labels),
notch, or gap to separate each label/tag, but rather the media is one long piece
of material.
core diameter The inside diameter of the cardboard core at the center of a roll of
media/ribbon.
cutter A device that can cut each label/tag immediately after it is printed.
diagnostics Information about what printer functions are not working. This
information is used for troubleshooting problems.
direct thermal printing Printing in which direct thermal media is used. No
ribbon is used. Instead, the media is coated with a substance that reacts to
heat to produce an image.
fanfold media Media that comes folded in a rectangular stack, rather than on a
roll.
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