Specifications

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To create a label for the Zebra PA 400, you may either use a commercial label preparation
system software, such as Zebra BAR-ONE, to create the label format or write one in
ZPL II, which is Zebra’s programming language for creating labels. If you are using
commercial label preparation software, refer to the software’s help files or users guide. If
you are using ZPL II to format your labels, ensure that you have a copy of the ZPL II
Programming Guide (Zebra part number 46469L).
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If using commercial label preparation software, adjust the relative darkness setting as
indicated by the software manufacturer. If ZPL II is being used, send the
^MD (Media
Darkness) or
~SD (Set Darkness) command (see the ZPL II Programming Guide for the
complete command syntax).
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Printhead pressure needs to be adjusted if print darkness is inconsistent across the label, if
thick or thin label stock is being used, or if the registration of narrow media is a problem.
If the labels darkness is uneven or the image distorted:
1. Refer to Figure 2-20. Slide the printhead pressure adjuster toward the rear of the
printer until it stops at the next setting.
2. Print another test label. If the image remains irregular, repeat step 1.
If the printing on the label is too dark, reverse the above procedures.
Figure 2-20. Printhead Pressure Adjustment
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Printhead
Pressure
Adjust
Lightest
Pressure
Setting
Darkest
Pressure
Setting
Do not adjust these screws!