Acer 4315 User Manual page 12

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any light source
minimizing room light by using drapes, shades or blinds
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using a task light
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changing the display's viewing angle
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using a glare-reduction filter
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using a display visor, such as a piece of cardboard extended from the
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display's top front edge
Avoid adjusting your display to an awkward viewing angle.
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Avoid looking at bright light sources, such as open windows, for extended
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periods of time.
Developing good work habits
Develop the following work habits to make your computer use more relaxing
and productive:
Take short breaks regularly and often.
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Perform some stretching exercises.
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Breathe fresh air as often as possible.
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Exercise regularly and maintain a healthy body.
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Warning! We do not recommend using the computer on a couch
or bed. If this is unavoidable, work for only short periods, take
breaks regularly, and do some stretching exercises.
Note: For more information, please refer to "Regulations and
safety notices" on page 73 in the AcerSystem User's Guide.