4
Maintenance
Toshiba
B
‐
FV4T
Owner’s
Manual
34
4.2
Replacing
RTC
Battery
If
your
printer
has
a
built
‐
in
real
‐
time
clock
(RTC),
you
will
find
the
RTC
battery
on
the
main
board.
The
RTC
battery
keeps
the
RTC
running
when
the
printer
is
turned
off,
so
the
RTC
can
keep
track
of
the
current
time.
You
can
check
the
RTC
battery
charge
from
the
status
lights.
If
the
RTC
battery
is
low
or
out,
you
need
to
replace
it
with
a
new
one.
Take
the
following
steps
to
replace
your
RTC
battery:
1.
Turn
on
the
printer.
2.
Locate
the
battery
on
the
main
board.
3.
Remove
the
old
coin
battery
and
install
a
new
one.
4.
Turn
off
the
printer.
Warning
Risk
of
explosion
if
battery
is
replaced
by
an
incorrect
type.
Dispose
of
used
batteries
according
to
the
instructions.