BBC BASIC solutions
T
h
e co
mm
a
nd to send the next character to the printer por
t
i
s VDU
1
.
However, y
ou can also switch the printer port on b
y g
i
vi
n
g the
co
m
ma
nd
V
DU 2
,
then use PRINT and all character
s
will pr
int both
o
n
the sc
r
ee
n and the printer
.
If one of the programs in thi
s manual
conta
in
s a
n
I
NPUT statement or a PRINT statement
,
th
e
r
e wi
ll
be a
message
th
a
t
s
hould go to th
e s
creen before an
y
thing i
s se
n
t
t
o the
p
ri
n
ter
.
I
n
t
hes
e
program
s,
leave the first lines as they ar
e a
n
d after
th
e INPUT a
nd
/
or PRINT
s
tat
e
m
e
nts
,
add a line that
s
tat
es V
D
U 2.
Then c
h
a
n
ge
all the instance
s
of LPRINT to PRINT and
p
u
t a line
th
a
t
sta
t
es V
DU 3 at the end o
f
the program
.
This
s
wit
c
h
es all
o
utpu
t
t
o sc
reen only
.
When using the VDU 1 command
to send
codes to t
h
e
LX-80
,
remember a
"
I
"
has to be used aft
e
r
EACH
c
h
a
r
acter yo
u wish to output. Thus the command to
se
t
e
nl
arged
c
h
aracte
r
s
until switched off «ESC>
WI) requires the
se
qu
ence:
V
DU 1
,2
7
,
1
,
87
,
1
,
1
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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