Star Micronics SG-10, SG-15

You may wonder why they picked l/72 of an inch as the in-

crement 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, like one half dot spacing

(STAR mode) or one third dot spacing (IBM mode).

The < ESC > “3” CHR$( it command sets the line spacing in

)

increments of l/144 inch (STARmode) or l/216 inch (IMB mode).

Change line 30 in your program so it is like this:

30 LPRINT CHR$ (27) “3” CHR$(I) ;

and run the program again. Now the results will look like this:

(STAR mode)

This

Line

line spacing is set to 20

line spacing is set to ‘211

line spacing is set tc! 22

line spacing is set to 2;5

line spacing is set to 24

line spacing is set to 25

E.pacing is set to l/6 inch !nomal ) .

(IBM mode)

This line

This line s’pac 5

Line spaci spaq 1

ng ic

i get to l/6 inch (nomal).