You may wonder why l/72 of an inch was chosen as the
increment for the line spacing command. There’s a good reason:
the dots that the printer makes are l/72 inch apart. So this
means that you can vary the line spacing in increments as tine
as one dot - unless you want finer spacing, in which case you
may use one third dot spacing.
/.
The < ESC > “3” CHR$(n) command sets the line spacing
in increments of l/216 inch. Change line 40 in your program
to this:
40 LPRINT CHR$(27);“3”;CHR$(I);
and run the program again. Now the results will look like
this:
. The program works just the same as before, but the line
spacings are just one-third what they were. This is because
< ESC > “3” CHR$(n) sets the line spacing to n/216 inch.
If you run the program with DIP switch 2-4 set off under
the Standard mode, you’ll get a different result, as shown below.
When DIP switch 2-4 is off, < ESC > “3” CHR$(n) sets the
line spacing to n/144 inch, instead of n/216 inch.