Printek FormsPro 4300 Owner's Manual page 62

IBM Proprinter Emulation
a documented control code or escape sequence, refer to the hex representation in the
provided example. This should clarify any ambiguity. The examples may also be
helpful when analyzing a hex dump (see chapter 8) printed by the printer.
Column and line numbers begin at one, not at zero. Keep this in mind when setting
tabs, margins, etc.
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