Chapter 1 Introduction; Scope; General Description - Digital Equipment LV8 User Manual

CHAPTER
1
INTRODUCTION
1.1
SCOPE
This
guide contains operating, installation, programming,
and technical reference data
on
the
LV8/LV12/LV11
Printer/Plotter System. The printer/plotter
system
consists
of
two
components:
an
LVOl Line
Printer/Plotter
(manufactured by
Versatec, Inc.)
and
a
Digital Equipment Corporation (DEC) computer
interface unit. The
interface unit
designations
for
use
with each DEC
computer
are
listed below.
Interface Used with DEC
Computer
LV8 PDP-8/E, PDP-8 / M
LV12 PDP-12, PDP-8/I, PDP-8/L
(positive
bus
only)
LVll PDP-ll
For
example,
the LV11
system
consists of
an
LVOl
Printer/Plotter and
an
LVll Interface Controller for
use
with
a
PDP-ll
computer.
This
guide and the Versatec maintenance manual
must
be used
together
for
a
complete understanding
of the
printer/plotter
system.
The
prime
subject
of this
guide is
the
LV8, LV12,
and LVll Controller. The
prime subject
of
the Versatec maintenance manual
is the printer/plotter itself; the manual
presents
a
detailed discussion of the
print
and
plot mechanisms, including installation, operation, maintenance, troubleshooting,
and
engineering drawings.
Paragraph
1.5 lists all reference documents related
to
the
printer/ plotter
system.
1.2
GENERAL DESCRIPTION
The LVOl Printer/Plotter
is
a
hard copy device manufactured
by Versatec, Inc., Cupertino, California, to
an
exacting
set
of DEC
specifications.
Its speed,
compact size,
and
quietness
of
operation
make it ideal for
use
in
hospitals,
research
laboratories,
and offices. The line
printer
has 132
columns,
a
96 ASCII character
set,
and
prints
at
a
speed
of up
to
500 lines per minute (full line). The plotter speed is
120 lines per second
maximum, with
a
data transfer
rate
of 500K
bytes
per second maximum.
Printing is accomplished by depositing
an
electrostatic
charge
on a
dielectric surface and
blackening
the
charged
areas
with fine
particles deposited
from
a
liquid
toner.
The paper
is
then dried by directing
air
flow
over
the paper.
The LVOl is available
in two
models. The 115V model,
designated LVOl-BA,
handles 104—132 Vac
at
50
or
60 Hz.
The 240V
model, designated LVOl-BB,
handles 208—264 Vac
at
50
or
60 Hz.
1-1