The CHR$(9)"80N" code directs all subsequent output to the p
r
in
-
ter
,
up to 80 characters per row. You can cancel this by typing
:
T
h
e
pr
o
bl
e
m is that the LX-80 uses CHR$(9) to activate horiz
o
n
ta
l
t
a
bul
a
ti
o
n
a
nd can also use it in graphics programs
.
When you
send
thi
s co
d
e,
however, your system will interpret it as a print
e
r
in-
iti
a
li
za
tion code and the program will not work properly. In th
ese
cases
th
e
int
e
rface manual will normally tell you how to chang
e the
init
ia
l
i
z
a
tion character to another one. If you are using a word p
ro-
cessor yo
u
s
hould not have much trouble, as the software will n
or
-
m
a
ll
y
h
a
ndl
e
these problems.
With th
e
l
a
t
e
st Apple software such as the "Appleworks
"
p
a
ck
age
or
a
n
y
thing running under prodos, you may find your print
e
r
card
will n
ot a
llow you to print anything to the LX-80. In this case con
s
u
lt
y
ou
r
d
ea
l
e
r
a
s the ROM on the interface card may need upd
a
t
ing
.
TRS-80
™
solutions
A r
o
ut
i
n
e to
POKE codes to the memory of a Modell is giv
e
n in
the
PO
KE
in
g co
d
es
subsection. A spec
.
~
I
printer driver for eith
er the
M
o
d
el
I
o
r the Model
III
is shr
w
I
1fl
.He Special printer dri
vers
s
ub
sec
ti
o
n
.
One of those
II.
,.
:
."
o
;
J
:
,
should solve any problem
s with
t
h
e
pr
og
r
a
m
s
in this manual
.
IBM_PC™ solutions
Th
e
r
e a
r
e
two problems in using the IBM Personal Compu
ter
BASI
C
t
o
drive a printer
.
First
,
the IBM-PC BASIC insert
s a car-
ri
age
-r
e
turn
l
line-feed (CR-LF) after each 80 characters you
se
n
d it
.
Sec
ond
,
it
a
dds an LF to each CR in an LPRINT statement
.
H
e
r
e is
th
e w
ay to adjust the width when it is the only probl
e
m
-
:
'
Tell
th
e
c
o
mput
e
r that the print line is wider than 80 characters with
t
h
is
WIDTH
s
t
a
t
e
ment
:
WIDTH
"LPT1:",
2J
'
)!)
Th
e 2
55 i
s a s
pecial number that prevents the computer system f
rom
in
se
rtin
g a
CR-LF into the line. Unless, of course, there is on
e in
y
our pr
og
r
a
m.
Th
e ex
tr
a
line feed-CHR$(lO)-that
accompanies each c
a
rri
age
re
turn
-C
HR$(13)-is
no problem except when you need t
o use
C
HR
$(
1
3)
in a graphic
s
program.
Getting
rid of the
extra
Summary of Contents for LX-80
Page 1: ...LX 80 Printer P8492037 0 Y560991020 ...
Page 2: ...EPSON LX SOPRINTER Operating Manual ...
Page 8: ...The Parallel Interface Data Transfer Sequence Interface timing Signal relationships ...
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