NEC Express 5800 User Manual page 21

Advice for Health
The longer you keep using the computer equipment, the more you become tired, which may cause
disorders of your body. When you use a computer, observe the following to keep yourself from
getting tired:
Good Working Posture
Your working posture is good if the following are satisfied when you use a computer:
• You sit on a chair with your back straight.
• Your hands are parallel with the floor when you put them on the keyboard.
• You look at the screen slightly lower than your eye height.
No part of your body must be under excessive strain, your muscles must be relaxed.
Your posture is bad when you sit with your back hunched up or you operate a display unit with your
face close to the screen. A bad working posture may cause eye strain or poor eyesight.
Adjustment of the Display Unit Angles
Most display units are designed for adjustment of the horizontal and vertical angles. This adjustment
is important to prevent the screen from reflecting bright lights and to make the display contents easy
to see. You will not be able to keep a "good working posture" and you will feel more tired than you
should if you operate a display unit without adjusting horizontal and vertical angles.
Adjustment of Screen Brightness and Contrast
The display unit has brightness and contrast adjustment functions. The most suitable brightness and
contrast adjustment depends on the individual and on the working environment (well-lighted room or
insufficient light). Adjust brightness and contrast so that the screen is easy to see. An extremely
bright or dark screen will have cause eye troubles.
Adjustment of the Keyboard Angle
The keyboard provided with the server is designed for adjustment to a certain angle. Adjust the
keyboard at an angle at which the keyboard is easy to operate. The adjustment assists in reducing
strain on your shoulders, arms, and fingers.
Cleaning the Equipment
Clean the equipment regularly. It is difficult to see the display contents on a dusty screen. Keeping
your equipment clean is also important for your sight.
Fatigue and Rest
If you feel tired, you should stop working and do light exercises.
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