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ESC A
Set Variable Line Spacing
ESCA
n
Escape A stores a
line-spacing
value which is activated b, the
ESC 2 (Activate Variable Line Spacing)
command.
The value stored is
ni
t-units per
inch,
where the value of the
t-units parameter is
set
by ESC [
\
(Set Vertical
Units).
When the
printer is turned
on, ni
t-units is set
to
12/72-inch.
The valid range
for n is 1 to 255.
For
example, to change line spacing to 3 lines
per
inch,
the first LPRINT stores a value of
24/72,
assuming that
t-units equals 72. The second
LPRINT
activates
the
stored value.
LPRI NT CHR$
(
27
)
;CHR$
(
6
5)
;
CHR$(
2
4)
;
LPRINT CHR
$
(27)
;
CHR$(50)
;
ESC
B
Set Vertical Tab Stops
4-28
ESC B
n1 n2
....
nk
0
The
n'
s in the format above are used to indicate tab stop positions
which are referenced in print
li
nes from the top of form which is
line one. Values of
n
between
1
and 255 are valid. Tab stop
numbers which are not
in
ascending
numerical
order are dis-
carded. The first 16 valid tab stops are
stored.
Additional tab
stops are discarded. A zero value terminates the tab
sequence.
ESC B followed only by 0 or
ESC
R may be used to clear vertical
tab
stops.
Vertical tabs stops are also cleared when the printer is
initialized. For
example,
to set tabs at 10, 20, and
40:
LPRINT CHR$(27) ;CHR
$
(66)
;
CHR$(10)
;
CHR$ ( 2 0)
;
CHR$ ( 4 0)
;
CHR$ ( 0)
;
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