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Command summaries in each emulation
mode
You use software to send information and instructions to the unit over the cable that connects the unit to the
computer. In addition to data, the instructions you send may include special command sequences known as
control codes and ESCape sequences. These commands tell the unit such things as how many lines to skip
and where to start printing.
Some control codes are standard throughout the microcomputer industry and are recognized by all printers.
Two examples of these are form feed (FF) and line feed (LF).
ESCape sequences are unique to each printer emulation. ESCape sequences begin with the ESC character
followed by one or more other characters.
The ESCape character tells the unit not to print the next character, but to use the information to perform a
printing control task, such as printing in bold or underlining.
Application printer drivers may override the printer control codes embedded in a document. To determine if an
application is overriding your commands, print the document using a generic driver and see if the correct
commands are reflected in the printed copy. If they are, the application printer driver is overriding the
commands.