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To ensure that computer and printer protocols match, and
for more detailed instructions for making this change, see:
Interface Options
Part III Section P
Serial Interface Options
Part III Section Q Parallel Interface Options
L
Using Software Commands
Software commands are commands to the printer that you
type at your computer keyboard and transmit to the printer
just as you would send a file for printing. Since you
transmit software commands to the printer over the same
line as print data, the printer needs a signal that tells it,
"This is a command." Your laser printer uses the "<ESC>"
code (decimal code 27) as this signal.
Do not confuse <ESC> with the
Esc key on your computer
keyboard. Transmitting an <ESC> code to the printer can
pose problems on many computer systems. You may wish
to refer to your computer's documentation for any special
instructions for transmitting "low-value" codes. If your
computer does not allow transmission of an <ESC> code,
you may set your laser printer to use the "tilde" character
(-) as the signal for software commands.
L.1
The Default: <ESC>
If you do not need to transmit software commands from
your computer or if you intend to use <ESC> (decimal
code 27), you do not need to make any changes to the
printer.
Tutorial
2-33
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