Designing Your Own Graphics - Epson LQ-510 User Manual

Type in and run the following program. Be especially careful to
include both semicolons. The program produces the printout you
see below:
10 WIDTH "LPT1:",255
20 LPRINT
30 FOR X=1 TO 120
40 LPRINT CHR$(170);
50
NEXT X
Line 20 selects single-density 24-pin graphics mode (mode 32) and
also reserves 40 columns for graphics. Since 24-pin graphics requires
three bytes of data for each column, line 30 begins a loop to supply
120 bytes of data. Line 40 contains the number 170, which produces
the first pin pattern shown in the section on pin labels, and line 50
ends the loop.

Designing Your Own Graphics

With what you know now, you can use the simplest application of
graphics-calculating by hand the data to print the graphic image.
While this method is the most tedious, it helps you understand dot
graphics. It is also useful for small graphic elements that are used
many times.
CHR$(27)"*"CHR$(32)CHR$(40)CHR$(0);
Software and Graphics
Graphics
4-15