Toshiba A55 Manuale Utente

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5.375 x 8.375 ver 2.3

type comfortably with your shoulders relaxed and your 
forearms parallel to the floor.

If you are using a conventional chair: 

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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.

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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.

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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.

Proper lighting can improve the readability of the display and 
reduce eyestrain.

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Position the display panel or external monitor so that 
sunlight or bright indoor lighting does not reflect off the 
screen. Use tinted windows or shades to reduce glare.

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Avoid placing your computer in front of a bright light that 
shines directly into your eyes.

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If possible, use soft, indirect lighting in your computer 
work area.

Your LCD display has a brightness approaching that of a TV 
device. We recommend that you adjust the brightness of your 
LCD to a comfortable level to prevent possible strain on your 
eyes.