Cleaning
your
computer
display
1.
Gently
wipe
the
display
with
a
dry,
soft
lint-free
cloth.
If
you
see
a
scratchlike
mark
on
your
display,
it
might
be
a
stain
transferred
from
the
keyboard
or
the
TrackPoint
pointing
stick
when
the
cover
was
pressed
from
the
outside.
2.
Wipe
or
dust
the
stain
gently
with
a
soft,
dry
cloth.
3.
If
the
stain
remains,
moisten
a
soft,
lint-free
cloth
with
water
or
a
50-50
mixture
of
isopropyl
alcohol
and
water
that
does
not
contain
impurities.
4.
Wring
out
as
much
of
the
liquid
as
you
can.
5.
Wipe
the
display
again;
do
not
let
any
liquid
drip
into
the
computer.
6.
Be
sure
to
dry
the
display
before
closing
it.
Care
for
the
fingerprint
reader
The
following
actions
could
damage
the
fingerprint
reader
or
cause
it
not
to
work
properly:
v
Scratching
the
surface
of
the
reader
with
a
hard,
pointed
object.
v
Scrapping
the
surface
of
the
reader
with
your
nail
or
anything
hard.
v
Using
or
touching
the
reader
with
a
dirty
finger.
If
you
notice
any
of
the
following
conditions,
gently
clean
the
surface
of
the
reader
with
a
dry,
soft,
lint-free
cloth:
v
The
surface
of
the
reader
is
dirty
or
stained.
v
The
surface
of
the
reader
is
wet.
v
The
reader
often
fails
to
enroll
or
authenticate
your
fingerprint.
Caring
for
your
ThinkPad
computer
8
ThinkPad
®
T40
Series
Service
and
Troubleshooting
Guide
Summary of Contents for ThinkPad T40
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