Toshiba Equium 3100 M - Manual (Page 8)

q Place the keyboard on a flat surface at a comfortable height and distance. You should be able
to type without twisting your torso or neck, and look at the screen without slouching.
q The top of the display should be no higher than eye level.
q If you use a paper holder, set it at about the same height and distance as the screen.
Seating and posture
When using the computer, maintain good posture with your body relaxed and your weight
distributed evenly. Proper seating is a primary factor in reducing work strain. Some people find
a backless chair more comfortable than a conventional chair. Whichever type you choose, use the
following guidelines to adjust your chair for maximum computing comfort.
Correct posture
and positioning
of the computer
q Position your chair so that the keyboard is at or slightly below the level of your elbow. You
should be able to type comfortably with your shoulders relaxed and your forearms parallel
to the floor.
If you are using a conventional chair:
q Your knees should be slightly higher than your hips. If necessary, use a footrest to raise the
level of your knees and ease the pressure on the back of your thighs.
q Adjust the back of your chair so that it supports the lower curve of your spine. If necessary,
use a cushion to provide extra back support. Lower- back- support cushions are available at
many office supply stores.
q Sit with your back straight so that your knees, hips, and elbows form approximately
90-degree angles when you work. Do not slump forward or lean back too far.
Lighting
Proper lighting can improve the visibility of the display and reduce eyestrain.
q Position the monitor so that sunlight or bright indoor lighting does not reflect off the screen.
Use tinted windows or shades to reduce glare.
q Avoid placing the monitor in front of a bright light that could shine directly in your eyes.
q If possible, use soft, indirect lighting in the computer work area.
Arms and wrists
To protect your arms and wrists:
q Avoid bending, arching, or twisting your wrists. Keep them in a relaxed, neutral position
while typing.
q Exercise your hands, wrists, and arms to improve circulation.
Work habits
The key to avoiding discomfort or injury from strain is to vary your activities. If possible,
schedule a variety of tasks into your working day. Finding ways to break up the routine can
reduce stress and improve your efficiency. Some ways to improve your work situation are: