Printronix L7032 Programmer's Reference Manual page 189

Code 39
Code 39 Examples
The following command generates the horizontal default ratio Code 39 bar
code shown below. In the command sequence, graphics mode data is
italicized and bar code data is boldface. See Chapter 2 for a detailed
description of alphanumeric commands.
^PY^-^M10,10,000^KF^BYA$25NW20%^G^KF^-^PN^-
code39
^PY^- enabled the graphics command sequence.
^M introduced the standard alphanumeric command.
The character height selected was 1.0 inches and character width was
selected at 1.0 inches.
A 0.0 justification value plus 0 additional dots was selected for the data
placement.
^KF activated Dark Print.
^B introduced the bar code command.
Y selected the standard 10 cpi font to print the optional readable data field.
Letter A selected Code 39 Type A.
$25NW20% is the bar code data, and ^G terminated the bar code command
sequence.
^KF^- at the end of the bar code sequence turned off Dark Print, and ^PN^-
terminated the graphics mode.
The following command generated the horizontal Code 39 bar code below
using OCR-A font, double the default ratio, and data of $25NW20%:
^PY^-^M10,10,000^KF^BO9A2266$25NW20%^G^KF^-^PN^-
code39.ex
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