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Ribbon Overview
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P1052686-001 GC420t™ User Guide 5/22/2012
Ribbon Overview
Ribbon is a thin film that is coated on one side with wax, resin, or wax resin, which is
transferred to the media during the thermal transfer process. The media determines whether
you need to use ribbon and how wide the ribbon must be. When ribbon is used, it must be as
wide as or wider than the media being used. If the ribbon is narrower than the media, areas of
the printhead are unprotected and subject to premature wear.
When to Use Ribbon
Thermal transfer media requires ribbon for printing while direct thermal media does not.
Direct thermal media should never be used with ribbon. Bar codes and graphics can get
distorted. To determine if ribbon must be used with a particular media, perform a media
scratch test.
Coated Side of Ribbon
Ribbon can be wound with the coated side on the inside or outside. This printer can only use
ribbon that is coated on the outside. If you are unsure which side of a particular roll of ribbon
is coated, perform an adhesive test or a ribbon scratch test to determine which side is coated.
To determine which side of a ribbon is coated, complete these steps:
Outside Inside