IBM Personal Computer AT Manual To Operations page 207

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Printer Control Codes Descriptions
The following pages list, in alphabetic order, the printer
control codes with a description of each. Some
knowledge of BASIC programming or how to insert
printer control codes in your program is necessary to
properly use these codes. An example of each code in
BASIC is at the end of each description. The "Format"
information is given where more information is needed
for programming considerations.
Note: All combinations of printing qualities,
character spacings, and printing types are valid. For
example, you can print in emphasized print,
double-width, and underline all at the same time.
Code
Description
BEL
Audible Alarm
Sounds the printer buzzer for 1 second or
less. The buzzer may be turned off with
DIP Switch 8.
LPRINT CHR$(7);
BS
Backspace
Moves the print head one character width to
the left. The character width is determined
by the selected character spacing.
LPRINT CHR$(8);
CAN
Clear Data
Clears the printer memory of all data
waiting to be printed following the last
received line ending code.
If
the initialize
function is set On by ESC? (Set Initialize
Signal Function), all control codes, except
SO (Double-width Printing), remain in
effect.
Color Printer 1-97

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