User's Manual
xi
Tips
and
information
for
comfortable
use
Co
mp
uter
u
s
ers
m
ay
co
mp
lain
of
eye
s
train
an
d
hea
d
ach
e
s
after
prolo
ng
e
d
use.
Users
are
also
at
risk
of
ph
ysical
in
jury
aft
e
r
lo
ng
ho
urs
of
workin
g
in
front
o
f
a
computer
.
L
ong
work
periods,
bad
posture,
poor
work
habits
,
stress,
inad
equ
a
te
workin
g
co
nd
it
i
ons,
p
e
rs
on
al
health
and
other
facto
r
s
g
r
eatly
increase
th
e
risk
of
ph
ys
ic
al
inju
ry.
Inco
rrect
com
pu
t
e
r
u
s
age
m
ay
lead
to
carpal
tu
nne
l
syn
drom
e,
tend
on
it
is,
teno
sy
no
v
i
tis
o
r
other
m
u
scu
l
oskeletal
disorders.
The
follo
wi
ng
s
y
mp
to
ms
m
ay
app
ear
in
th
e
han
d
s,
wrists
,
arms,
sho
u
ld
er
s,
n
eck
o
r
back:
•
nu
mb
ness,
or
a
bu
rnin
g
o
r
tingli
ng
sen
s
ation
•
achi
ng,
so
reness
or
ten
d
erness
•
pain
,
swelling
or
thro
bb
ing
•
st
i
f
fness
or
tight
n
ess
•
cold
ness
o
r
we
akness
If
yo
u
h
ave
t
h
ese
sym
p
to
ms,
or
an
y
o
t
her
recurr
ing
or
persistent
discomfor
t
and
/
or
p
a
in
related
t
o
co
mpu
t
er
use,
co
nsult
a
physician
imm
e
diately
an
d
infor
m
your
company's
heal
t
h
and
safety
departme
n
t.
The
fo
llowin
g
sectio
n
p
r
o
v
id
es
tips
for
more
comfortable
computer
use.
Finding
your
comfor
t
zon
e
Fin
d
y
ou
r
com
f
ort
zo
ne
b
y
adju
stin
g
the
viewing
an
gle
o
f
the
m
oni
to
r,
using
a
footrest,
or
raising
your
sitting
he
ight
to
achieve
m
a
xim
u
m
comfort.
Observe
the
fol
l
owing
tips:
•
refr
a
i
n
from
st
aying
too
long
in
one
f
i
xe
d
pos
t
ure
•
av
oid
slo
u
ch
ing
forward
an
d/o
r
leaning
b
a
ckward
•
sta
nd
up
and
walk
around
regularly
to
remove
the
strain
on
your
leg
mu
scles
•
take
short
rests
to
relax
your
neck
and
shoulders
•
av
oid
ten
s
ing
yo
ur
mu
scles
or
sh
ru
gg
ing
yo
ur
sho
u
ld
ers
•
install
the
external
displ
ay,
keyb
oard
a
nd
m
ou
s
e
prop
erly
and
w
i
th
in
comfortable
r
ea
c
h
•
if
y
ou
view
your
monitor
more
than
y
ou
r
do
c
u
m
e
nt
s,
pl
a
c
e
th
e
d
i
sp
l
ay
a
t
the
center
of
your
desk
to
minimiz
e
neck
strain
T
aking
ca
re
of
your
vis
i
on
Lo
ng
viewing
hou
r
s
,
wea
r
in
g
in
correct
g
l
ass
e
s
o
r
con
t
a
c
t
lenses,
gla
r
e,
exce
ss
ive
room
lighting
,
po
orly
f
o
cused
screens,
very
s
m
all
typefaces
and
low-contrast
disp
lays
co
uld
stress
y
ou
r
ey
es.
The
follo
wing
se
ctions
p
r
ov
ide
su
gge
stio
ns
on
how
to
reduce
eyestr
a
i
n.
Eyes
•
Rest
your
ey
es
frequently.
•
Give
yo
ur
eyes
regular
breaks
b
y
lo
okin
g
away
from
the
m
oni
t
o
r
and
focusing
on
a
distant
point.
•
Blin
k
frequ
ently
t
o
keep
yo
ur
eyes
fr
o
m
d
r
ying
ou
t.