Datamax Prodigy, Operator'S Manual

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Using the Printer
The Printer handles the printing of graphics in a manner that requires
less system overhead by the host device. All of the dot patterns for nine
different human readable fonts, and formulas for creating different types
of bar codes are built directly into the Printer. All of these fonts and bar
codes are presented in several different magnifications in APPENDIX D.
Notice that each one has been assigned a single letter or digit. This
character is used to select a font in the graphics request statement.
Unlike a line Printer whose only option is to print data received on the
next line or to a line further down in a document, the Printer allows the
host device to select where and how data is to appear on a label. The
rotation of the data, the selection and magnification of the font style, and
the data for each field can be controlled by the host through simple
graphic request statements. The Printer has a 3000 character area that is
able to store data that can be printed on a label in up to 99 different
fields. Each field description may request the Printer to print up to 255
characters.
In addition to the control you have on “what” and “where” data is to be
printed, the Printer also allows you to control the “how.” The how
includes commands that control the burn temperature, the print speed,
the slew rate during white space, and the amount of pre-calculation
before images are printed on the stock.