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: SI

Decimal:15

H e x a d e c i m a l : O F

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:

ESC

W

n

Decimal:

27

87

n

Hexadecimal:

1B

57

n

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 CHR$(27);CHR$(87);CHR$(1)

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"

Command Summary 9-3