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Xerox 7120 - OPERA Lions; Introduction; Operator Controls; Operl;Power

Xerox 7120
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4.
OPERATIONS
INTRODUCTION
The
operator
controls,
loading
procedure,
and
unloading
procedure
for
Models
7120,
7121,
7122,
and
7140
are
de-
scribed in this
section.
OPERATOR
CONTROLS
[MODEL
71201
The Model
7120
control panel consists of four
switch-
indicators
mounted on the front panel (see Figure
8).
Figure
8.
Model 7120 Card Reader Control Panel
OPER'LlPOWER
This
push-on/push-off,
split
field,
switch-indicator
con-
trols
ac
power
to
the
card
reader.
Nonillumination
of
the
OPER'L/POWER
switch-indicator
indicates
ac
power
is
not
applied.
When
the
switch
is
momentarily
pressed,
ac
power
is
applied
and
POWER
is
illuminated
(green).
OPER'L
is
illuminated
(white) if
ac
and system
dc
power
are
on
and
the
read
station
and
transport
mechanism
are
operative.
START
Operation
of this momentary
switch-indicator
places
the
card
reader
in
the
"automatic"
mode
and
illuminates
the
START
indicator
(white) if
the
unit
is
operational,
the
input
hopper
is
not
empty,
and
none
of
the
multiple
stackers
is
full.
In
addition,
if a
card
is
not
present
on
the
card
read
plat-
form,
operation
of
the
STARTswitch feeds
one
card
from
the
input
hopper
onto
the
card
read
platform.
The
indicator
is
extinguished
and
the
unit
enters
the
"manual"
mode if
any
of
the
following
conditions
occurs:
10
The STOP
switch
is
operated.
20
One
or
more
of
the
output
stackers
are
full.
3.
The
input
hopper
is
empty.
4.
The
unit
becomes not
operational.
FAULT/RESET
The
FAULT
indicator
of this
split
field,
switch-indicator
is
ill
uminated
(red)
only
when
a read
station
faul t
or
transport
16
Operations
mechanism
fault
is
encountered.
Transport motor
power
is
removed when
any
transport
mechanism foul t
occurs,
such
as
fai
I ure
to
feed a
card
from
the
input
hopper to the
card
read
platform or a
card
jam
in
the
transport
mechanism.
Illumi-
nation
of
the
FAULT
indicator
normally
indicates
that
the
assistance
of
maintenance
personnel
is
required to restore
the
card
reader
to
an
operational
condition.
When
the
card
reader
is
in
the
process
of
reading
a
card,
pressing
the
RESET
switch
causes
an
"unusual end"
condition
to
be
signaled
to
the
controlling
system
and
places
the
card
reader
in
the
"manual"
mode
at
the
completion
of
the
cur-
rent
card
read
operation.
STOP
Operation
of this momentary
switch-indicator
~hanges
the
card
reader
from
the
"automatic"
mode to
the"
manual"
mode.
The
STOP
indicator
is
illuminated
(white)
only
while
the
unit
is
in
the
"manual"
mode, with
the
current
card
read
operation
(if in process)
being
completed.
OPERATOR
CONTROLS
IMODELS
7121/7122/71401
The control
panels
for
Models
7121,
7122,
and
7140
Card
Readers consist of four
switches
and
eight
indicators
(see
Figures 9
and
10).
Figure
9.
Models
7121/7122
Card Reader Control Panel
POWER
This control
is
a
push-on-/push-off
switch-indicator
that
controls
ac
power
to
the
card
reader.
When
the
switch
is
pressed,
ac
power
is
applied
and
POWER
is
illuminated.
Nonillumination
of
the
switch
indicates
that
ac
power
is
not
applied.
START
Operation
of this momentary
switch-indicator
places
the
card
reader
in
the
"automatic"
mode if
the
unit
is
opera-
tional,
the
input
hopper
is
not
empty,
and
no
output
stacker
is
full.
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