Radio Shack TRS-80 Owner's Manual page 88

The
printers that
require
lpc
are:
Line Printer
III
(26-1156)
Line
Printer
VI
(26-1 loo)
Daisy
Wheel
WP50
(26-1157)
Qume
Daisy
Wheel
(26-1157A)
Daisy
Wheel
II
(26-1158)
and
all
future
printers.
Printers that
do
not require lpc:
26-1150,
1152, 1153, 1154, 1159,
and
the
a
version of
lpiii
(26-1
156A).
You must
load the
lpc program
before
you
load an
application program.
The
easiest
way
to
do
this
is
to
copy lpc
onto your data/program
diskette
and
then
use
the
auto command
to
load lpc
automatically each
time
you
use
the
system.
For
instance, type:
COPY LPCsi
:0 dNSE)
Then,
to
make
lpc
an
auto
command
on
the diskette, type:
AUTO LPC/CMD
(ENTER)
Whenever
you
use
your program
diskette,
lpc
will automatically load
into
memory
and you can use
the
program
as usual.
lpc
locates into the highest available
memory.
There
is
no need
to set
MEMORY
SIZE
to
protect lpc.
It
"hides"
itself.
However, you
still
need
to
set
memory
if
required by your
application
program, lpc
will be
killed
if
the
clear command
is
used.
Warning: Once
the
lpc
utility
program
is
loaded and
installed,
you
should not
reload
it
except
after
a
reset.
Reloading
re-installs the
program and
uses
up more
space each
time!
lpc
will not
execute
if
the Printer has
been
routed elsewhere.
Also,
if
lpc has been executed and
then the Printer
is
routed elsewhere,
the
original printer driver
will
regain control
after the routing.
MEMTEST
Test
Memory
MFMUS:
This
program
tests
your
Model
Ill's
memory
(read only
and random
access). In
trsdos ready,
just
type
MEMTEST
and
press
(ENTER)
.
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