Epson Powerspan, Руководство пользователя

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Since you’ll be sitting most of the time you use your computer,
it’s important to have a good chair. An adjustable chair allows
you to support your body in the correct position. Make sure the
chair supports your lower back; the backrest should fit the
curvature of your spine. To reduce fatigue, try to use a chair
with adjustable, padded armrests so you can occasionally rest
your arms while you work.
Make sure the seat and backrest are wide enough so you can sit
in a variety of positions throughout the day. Also leave enough
room under the work surface so you can vary the position of
your legs.
Adjust the height of your chair so when you are using the
keyboard or mouse your upper arms are vertical and your
forearms and wrists are horizontal. For good circulation, your
feet should rest flat on the floor with your lower legs vertical
and your knees level with your hips. You may need to use a
footrest to maintain the correct alignment for your legs.
Positioning Your Monitor
Place the monitor so it is directly in front of you
with the top of the screen slightly below eye level
when you are sitting at the computer. You may want to place it
on top of the computer or on a stand.
Your line of sight to the screen should be about 10 to 20 degrees
below the horizontal. If the monitor has a tilt and swivel base,
you can adjust the position of the monitor screen for the best
viewing angle.
Sit about an arm’s length or more away from the monitor. The
most comfortable viewing distance depends on the size of the
screen characters and your ability to focus on the display.
Adjust the monitor’s brightness and contrast controls to
maximize image clarity, and keep the screen clean.
Using Your Computer 4-3