Radio Shack TRS-80 Model III - Page 45

OPERATION
7
/
Using
A
Line
Printer
Any Radio
Shack "parallel
interface
'
'
printer may
be connected to the
Model
III
.
There are some
differences
in printer
functions available,
so check in the
printer
owner's manual
for these details.
Line
Printer vs
Video
Display
Output
Output to
the line printer
is similar to
display
output; in fact,
for the two major
display
output operations,
there are
two matching
line printer
output operations:
Video Display
Line
Printer
PRINT
LPRINT
LIST
LLIST
These are
described
in the BASIC Language
Section
of this
manual
.
When you
try to output
information to
the
printer, the Computer
will first see if
a
printer is
connected and ready
to accept
the data.
If it is not, the
Computer will
simply wait
until the printer is
available .
During
this time
,
you
will not be able to
type
in
instructions from the
keyboard.
To regain
keyboard
control in this
situation,
hold
down
the
(BREAK
)
key until
the
Computer
displays
READY
>
Certain of the
Video Display
features are
not available
on the
printer. For example:
•
The graphics
and special
character
sets
cannot be
output to the
printer. However,
your printer may
have its
own
special
characters or
'
'
graphics
".
Check
in the
owner's manual.
•
The CLS
and PRINT
@
statements
have
no
line-printer
counterparts.
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