without moving the printhead back to the left margin. The fol-
lowing commands do just that.
The < ESC > “J” CHR$(n) command causes the printer to
make one line feed of n/144 inch (STAR mode), or n/216 inch
(IBM mode), but does not change the setting of the line spacing.
Try this program to see how it works:
10 'Demo one-time line feeds.
29) LPRINT "Line number 1.”
341 LPRINT "Line number 2." ;
441 'One time line feed.
50 LPRINT CHR$(27) "J" CHR$(l@@) ;
641 LPRINT "Line number 3."
74) LPRINT "Line number 4."
Here is what SR-IO/l5 will produce:
Line number 1.
Line number 2.
Line number 3.
Line number 4.
The < ESC > “J” CHR$( 100)
in line 50 changes the spacing
to 100/144 inches (100/216 inches for IBM mode) for one line
only without moving the printhead. The rest of the lines printed
with the normal line spacing. Notice that both line 30 and line
50 end with semicolons. This prevents the normal line feed from
occuring.
The <ESC> “j” CHR$(n) command works the same way
except that the paper moves in the opposite direction. Try this
simple change to your program and see what a difference it makes!
40 'One time reverse line feed.
50 LPRINT CHR$(27) "j" CHR$(lQ)@) ;
53
