User Guide
Options and accessories
Emulations
General
When a printer understands the control set written for another printer type, it is
said to emulate the other printer. Your printer emulates, i.e. “understands” the
Epson LQ-2550 in its standard version.
Escape sequences
Escape sequences or control codes tell the printer that the following transmitted
code is a printer command and not a printable character
They allow the selection of printer functions or the changing of printer parameters
from the computer. By transmitting an escape sequence, you are able to change
the previously set configuration of the printer (e.g. character set).
This chapter contains an introduction into the sequences and control codes which
are used by your printer.
The settings made by escape sequences have priority over the settings
made in menu mode; therefore they override these.
What are escape sequences?
An escape sequence consists of an ESCape control character (ESC = decimal
27 or hexadecimal 1B) followed by one or more charac-
ters, which represent
commands to the printer. Please note that this escape character has nothing to
do with the ESC key on your computer keyboard.
For example, the control character ESC followed by the character “4” tells your
printer to print the subsequent text in italics.
MTPL sequences
Apart from the Escape sequences and control codes your printer is equipped
with MTPL sequences. These sequences provide a large number of additional
ways to control your printer. Many functions can only be carried out using the
MTPL sequences as you will see when you look at the list of available command
codes.
Control codes
Control codes give simple instructions to the printer to do a specific function.
Unlike escape sequences, control codes do not begin with the ESC control code.
Instead, they consist of special single-character non-printing commands (e.g. LF,
FF, DC2).
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