Epson Apex 80 User Manual page 73

For the following commands that use only 0 or 1 for the variable,
either the ASCII cocks 1 and 0 or the characters 1 and 0 can be used:
ESC , ESC U, ESC
S
ESC %
For example, in BASIC you can turn on double-wide with either of
these statements:
The simplest type of command consists of a single character to be
sent to the printer. For instance, to print in condensed mode the code
format is:
ASCII code:
Decimal:
Hexadecimal: OF
More complex commands consist of two or more character codes.
For example, to print in elite mode the code format is the following:
ASCII code:
Decimal:
Hexadecimal:
In this case n can be either 1 or 0, to begin or end elite printing. You
can use either of the following commands to turn ON elite print from
BASIC:
A-2
, ESC W, ESC S, ESC-
X
LPRINT CHR$(27);"W";CHR$(1)
LPRINT CHR$(27);"W";"1"
S I
15
ESC M
27 77
1B 4D
LPRINT CHR$(27);CHR$(77);CHR$(1)
LPRINT CHR$(27);"M";CHR$(l)
n
n
n
Command Summary
, and