Advice For Health - NEC Express5800 Series User Manual

Precautions for Use (Be Sure to Read)

Advice for Health

The longer you keep using computer equipment, the more tired you become, which
may affect your health and wellbeing. When you use a computer, observe the following
to keep yourself from getting tired:
Good Working Posture
You will have good posture if you observe the following when using a computer:
You sit on your 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.
You have "good working posture" as described above when no part of your body is
under excess strain, in other words when your muscles are most relaxed.
You have "bad posture" when you sit with your back hunched up or you operate a
display unit with your face close to the screen. Bad working posture may cause eye
strain or poor eyesight.
Adjustment of 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 maintain your 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 depend on the individual and the working environment (well-lit
room versus insufficient light). Adjust brightness and contrast so that the screen will be
easy to see. An extremely bright or dark screen will have a bad effect on your eyes.
Adjustment of Keyboard Angle
The angle of the keyboard provided with the server can be adjusted. Adjust the
keyboard to an angle at which it is easy to operate. Adjustment assists in reducing strain
on your shoulders, arms, and fingers.
Cleaning of Equipment
Clean equipment regularly. It is difficult to see contents on a dusty screen. Keeping
equipment clean is also important for your eyesight.
Fatigue and Rest
If you feel tired, you should stop working and do light exercises.
Express5800/US320f User's Guide
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