Lenovo 9728 Manuale Utente
8.
If
the
rollers
are
dirty,
clean
them
by
using
a
cotton
swab
soaked
in
isopropyl
(rubbing)
alcohol.
Turn
the
rollers
with
your
finger
and
continue
swabbing
them
until
all
the
dirt
is
removed.
Be
sure
the
rollers
are
still
centered
in
their
channels
after
you
clean
them.
9.
Remove
any
fibers
from
the
swab
that
might
be
remaining
on
the
rollers.
10.
Replace
the
ball
and
the
retainer
ring.
Twist
the
retainer
ring
to
the
locked
position.
11.
Reconnect
the
mouse
cable
to
the
computer.
12.
Turn
your
computer
back
on.
72
User
Guide