Selecting Printers: List Device Files
VECTOR 4 USER'S
MANUAL
VECTOR
4·
CP/M TRANSIENT COMMANDS
Your
Vec
tor
4 is
capable
of
supporting
two
printers.
To
control
these
printers, Vector 4
CP
1M
reads
list
device files (also called printer drivers)
into
memory. Vector 4 CP/M supports two
list
device files (shown in
the
directory
as VECTOR.LD1 and VECTOR.LD2). Once
you
have
copied
the
correct
instructions
for
your
printer
into
each
list
device
file,
you will
use
the
CONFIG
program
to
select the printer for
current
use.
Selecting
a printer
is
necessary for any printing operations from the operating
system.
Some applications programs you use
may
have
routines
which
handle
the
printer
selecting
and
attaching
for
you.
If
you
print
exclusively from
Vector Graphic's
MEMORITE
word-processing program, for example, you should
not
have
to
use
CONFIG
to
select
the
printer:
MEMORITE
contains commands
which manage this for you. To be certain, check
the
manual
for
the
specific
applications program, regarding references.
to
attaching the printer.
Before you
can
use the CONFIG program
to
select
a
printer,
you
must
have
the
correct
printer
driver
specified.
If
you
are
using
the
Vector
7700
letter-quality printer,
that
will
not
be
necessary.
The
7700 is
set
to
read
from Driver
2.
However,
if you
are
using a different type of printer, you will need
to
know
the type of printer you
are
using, whether
it
is
serial
or
parallel
(electronic
terms
for
the
way
information
is
sent
to
the
printer
for
decoding),
and
whether the printer driver file exists on your disk or diskette.
If
you have purchased a non-standard printer, you will probably need a special
driver
to
run
it.
See
the
operating
instructions
for
the
specific
type·
of
printer
you
have
to
determine
which
list
device
fUe
to
use for your printer;
then
refer
to
the Programming Manual for instructions on how
to
set
up
your
printer drivers for non-standard
list
devices.
Once you specify the
programs
for
both
List
Device
files,
you
can
choose
which one of them
you
wish
to
use
at
that
time with the
CONFIG
command.
Attaching Printers: Configuring The System
The
system
is
now
set
to
read from one or
the
other of two
list
device fUes.
You
now
need
to
tell
it
which one you want
it
to
read, and the way
to
tell
it
that
is through
the
CONFIG
command.
To
the
operating system, printing consists of sending a stream of
characters
-
some data, some instructions -
to
a location in
the
system which is
specified
by
the
CONFIG
program.
This program allows you four options:
to
send
the
printout nowhere,
to
send
it
to
Printer 1,
to
Printer
2, or back
to
the
screen.
Rev.
A - 09-01-82 7100-0001 IX-9
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