NEC BladeServer Express5800 Series User Manual page 25

Notes on Using Your Server 1-11
Advice for Health
Prolonged use of a computer may affect your health. Keep in mind the
following to reduce stresses on your body:
Good Working Posture
Sit on your chair with your back straight. If the desk height is correct, you
will look down at the screen slightly and your forearms will be parallel to
the floor. This "good" work posture can minimize muscle tension caused
by sedentary work.
If you sit in a "bad" posture—for example, sit round-shouldered or with
you face too close to the display—you may easily suffer fatigue or
eyestrain.
Adjust Display Angle
Most types of displays allow you to adjust the angle vertically and
horizontally. This adjustment is very important to prevent the reflection of
light as well as to make the screen more comfortable to see. Without this
adjustment, it is difficult to maintain a "good" work posture. Be sure to
adjust the angle before using the display.
Adjust Screen Brightness and Contrast
Displays allow you to adjust brightness and contrast. Optimum brightness
and contrast vary depending on the individual, brightness of the room,
etc. If the screen is too bright or too dark, it can cause eyestrain.
Adjust Keyboard Angle
Some types of keyboards allow you to adjust the angle. If you adjust the
angle to make the keyboard more comfortable to use, you can greatly
reduce stresses on your shoulders, arms, and fingers.
Clean Equipment
Cleanliness of the equipment is very important not only for appearance
but also for function and safety. Regularly clean the display, which may
become difficult to see due to the accumulation of dust.
Fatigue and Rest
If you feel tired, refresh yourself by taking a short break or doing light
exercise.