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CHAPTER
4
_ _ _ _ _ _ _ _ _ _ _
HORIZONTAL TABS
The ML92 and ML93 feature horizontal tab stops similar to
those on a
typewriter.
You set the stops with a line at the be-
ginning of your program, and use an "HT" code to skip to the
next tab stop. There are some important differences, which
give you extra flexibility
.
We'll talk about them as they
come up
.
NOTE:
Your computer or softwdre may control hori1ontal
tabs directly; in that
case you won't
be
able
to use the
printer's
horiLontal tab
feature. Some compu-
ters, however,
allow you
to tab by using
CHR$(137),
89
(hex), instead
of
the
standard
H-r
code,
CHR$(9).
Sec your computer
manual
for
details.
Character Column Tabs
Here's the loading sequence for setting standard (character
column) tabs:
ESC HT TAB1
TAB2
... CR
CHR$(27);CHR$(9);
1B 09
"TAB1,
TAB2
...
";
TAB1 TAB2 ...
CHR$(13}
OD (Hex)
-
sets tab stops at character
columns T AB1, T AB2, etc
.
NOTES: The
column number
must be
a three-digit
number. 11
you're
pro-
grdmming
in hexadecimal, keep
in
mind thdt
each
digit must be represented
by a
two-digit hexddecimdl number.
You can set up to 16 tab
stops.
Tab stops must be entered
in left-to-right sequence
;
that is, in ascending numerical order.
The location of the right-most possible tab stop depends on
the printer model (the ML93 has a wider carriage than the
ML92) and the character size you're using (there are more
characters on a line at 17 .1 characters per inch than at 10
cpi). This chart shows the possible combinations.
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