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Adjusting the Print Quality
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P1052685-001 GC420d™ User Guide 5/23/2012
Adjusting the Print Quality
Print quality is influenced by the heat (density) setting of the printhead, the print speed, and the
media in use. Experiment with these settings to find the optimal mix for your application. Print
quality can be set with the Zebra Setup Utility’s ‘Configure Print Quality’ routine.
The relative darkness (or density) setting can be controlled by:
• The six-flash sequence in Feed Button Modes on page 70. This will overwrite any ZPL
and EPL programmed darkness/density settings.
• The Set Darkness (
~SD) ZPL command (consult your ZPL Programming Guide).
• The Density (D) EPL command (consult your EPL Programmer’s Guide).
If you find that the print speed needs to be adjusted, use:
• The Windows printer driver or application software such as ZebraDesigner™.
• The Print Rate (^PR) command (consult your ZPL Programming Guide).
• The Speed Select (
S) command (consult your EPL Programmer’s Guide).
Note • Media manufactures may have specific recommendations for speed settings for your
printer and the media. Some media types have lower maximum speeds than your printer’s
maximum speed.