Pica Printing; Changing Pitches - Epson Printer Interface Cartridge for the Apple IIc Operation Manual

Pica Printing

The first exercise is a simple five-line program to print a sample line
of characters in pica, the standard pitch. Enter this program:
5 PRINT CHR$(4);"PR#1"
40 FOR X=65
50 PRINT CHR$(X);
60 NEXT X: PRINT: PRINT
300
PRINT CHR$(4);"PR#0"
Now run the program. You should get the results you see below, 10
pica characters per inch.
A B C D E F G H I J K L M N O P Q R S T U V W X Y [ \ ] ^ - ' a b c d e f g h i

Changing Pitches

Now you can try other pitches. As explained in Chapter 3, the
LX-90 uses the same pattern of dots for pica, elite, and compressed
characters, but it changes the horizontal spaces between the dots to
produce the three different widths.
In elite mode there are 12 characters per inch, and in compressed
there are The LX-90 prints in elite when it receives the ESCape
17.16.
"M" command and prints in compressed
command. Print a sample line of elite characters by adding the line
below to your previous program. (Simply type this line and press
RETURN; you do not need to retype the other lines.)
20 PRINT CHR$(27);"M";
This line uses the command for elite, ESCape 'WI", to turn on that
mode. When you run the program, your printout should look like the
one below.
ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_'abcdefghi
The next addition to the program cancels elite with ESCape "P" and
turns on compressed with ASCII 15:
30
PRINT CHR$(27);"P";CHR$(15);
TO 105
it receives the ASCII 15
when
21