IBM Personal Wheelwriter 6781, Operator'S Manual

Page: 64 / 84

Batteries
Your
typewriter
uses three
size
AA
alkaline
batteries. These
batteries
are
used
to save
margins,
tabs
and
other
settings
when
the typewriter
is
turned
off.
They
must
be
installed
cor-
rectly
and
changed
at
least
once
every
year
(before they
run
down).
When
changing
the
batteries, use
only
size
AA
alkaline
batteries
(for
example,
Duracell’
type
MN
1500,
Eveready’
type
E91,
Ray-
O-Vac’
type
815,
or
equivalent).
Do
not
use
rechargeable
bat-
teries.
Checking
the
Batteries
4-12
If
the
beeper
signals
three
times
and
the
Line
Space
lights
blink
alternately
when
you
turn
the typewriter
on,
check
the
following
while
the
typewriter
is
on:
1.
Look
at
the
batteries
for
correct installation.
2.
If
the
batteries
are
installed
correctly,
the
batteries
may be
weak
or
dead.
3.
Replace all
three
weak
or
dead batteries.
4.
Do
not
turn
the typewriter
off
while
replacing
the
old
bat-
teries.
If
you
turn
the typewriter
off
without
batteries
installed,
margins
and
other
settings
will
be
lost.
(See
page
4-14
for
correct
installation.)
Notes:
1.
The
Line Space
lights
blink
alternately
indicating
the
battery
is
low,
but you
have
not
lost
your
settings.
2.
The
Line
Space
lights
blink
continuously
indicating
you
have
lost
your
settings.
5
Trademark
of
Duracell, Inc.
6
Trademark
of
the
Union
Carbide
Corp.
7
Trademark
of
the
Ray-O-Vac
Corp.
Reference