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Fundamentals of Dot Matrix Printing
I
-----------------------------------------------
~=
Inch
Spacing
23/144
24/144
--------------------------------------------
25/144
-------------------------------------------------------
26/144
-------------------_._----------------
27/144
28/144
---------------------------,---
10 LPRINT TA8(30)j"High Resolution Vertical Spacing •
15 LPRINT TAB(30);"Uling the ESC 3 n Centrel Code •
20 FOR I
=
I TO 30
30
IF I
= 13
THEN GOTO 110
40 M = tNT ( 144 / ( 6 • I ) )
I
IF M
<
2 THEN M
=
2
50
LPRINT CHRS(27); CHRS(SI)jCHR$(I);
60 FOR
J
= 0 TO M
70 IF
J
=
M-I THEN LPRINT I ; "/144 INCH SPACING";
90 LPRINT TAB(30)j
~O
FOR N = 1 TO 40; LPRINT CHRt(241):
I
NEXT N; LPRINT
100
NEXT J
110
NEXT I
120 LPRINT CHR$(271;"@":
END
Figure 6-5b. This continuation of Figure 6-5a depicts
a
more "open" spacing,
that you might use for printing drafts of documents that need room for letting
the reviewer manually insert changes. This printout was produced by the
BASIC program listed above, written for the IBM-PC. Consult the appendices
to learn how to adapt this program to other computers.
89
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