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Using the Command Summary
All three formats are equivalent, and it should be easy to pick
the one most suited to your purpose. For instance, a BASIC
programmer might refer to the first and second formats, a word
processor might use the second, and a machine code
programmer would use the third format. Variables are
represented by italicized letters such as n, nl, and m. The
valiables are explained in the comments section.
Note: Some application programs can use control key
sequences to send commands to the printer. See the Control
Key chart on page 9-4 for more information.
The simplest type of command consists of sending a single
character to the printer.
For instance, to print in condensed
mode, you send the code 15. The code format is:
ASCII code:
SI
Decimal:
15
Hexadecimal: OF
More complex commands consist of two or more character
codes. For example, to print in proportional mode the code
format is:
ASCII code: ESC p n
Decimal:
27 112 n
Hexadecimal: 1B 70 n
In this case, n can be either 1 (ON) or 0 (OFF), to begin or end
proportional printing. To turn ON proportional printing from
BASIC, the command is:
LPRINT CHR$(27);CHR$(112);CHR$(l)
For the following commands that use only 0 or 1 for the
variable, either the ASCII codes 0 and 1 or the ASCII characters
0 and 1 can be used:
ESC U, ESC x, ESC p, ESC W, ESC S, ESC -,
ESC %, and ESC w.
Command Summary 9-3