Epson 1010 User Manual page 211

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
This code can be sent from a program by sending the code 15
directly.
More complex commands consist of two or more character codes.
For example, to print in double-wide mode, the code format is the
following:
ASCII code:
Decimal:
Hexadecimal:
In this case n can be either 1 (on) or 0 (off), to begin or end double-
width printing. You can use either of the following commands to
turn on double-width print from BASIC:
LPRINT
LPRINT CHR$(27);"W";CHR$(1)
For the following commands that use only 0 or 1 for the variable,
either the decimal or hexadecimal values 1 and 0 or the ASCII
characters 1 and 0 can be used:
ESC U, ESC x, ESC p, ESC W, ESC S, ESC-, and ESC %
For example, in BASIC you can turn on proportional spacing with
either of these statements:
LPRINT CHR$(27);"p";CHR$(1)
LPRINT CHR$(27);"p";"1"
SI
15
ESC W
27 87
1B 57
CHR$(27);CHR$(87);CHR$(1)
n
n
n
Command Summary 9-3