Samsung NP-Q310I User Manual Vista Ver.1.5 (English) - Page 20
Eye Position, Hand Position, Keep the monitor or LCD away from your eyes by at, least 50cm.
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Eye Position Keep the monitor or LCD away from your eyes by at least 50cm. Hand Position Keep your arm at a right angle as shown by the figure. 50cm ■ Adjust the height of the monitor and the LCD screen so that its top height is equal to or lower than your eyes. ■ Avoid setting the monitor and LCD excessively bright. ■ Keep the monitor and LCD screen clean. ■ If you wear glasses, clean them before using the computer. ■ When entering contents printed on a paper into the computer, use a static paper holder so that the height of the paper is almost equal to that of the monitor. ■ Keep the line from your elbow to your hand straight. ■ Do not place your palm over the keyboard while typing. ■ Do not hold the mouse with excessive force. ■ Do not press the keyboard, touchpad or mouse with excessive force. ■ It is recommended connecting an external keyboard and mouse when using the computer for long periods of time. 19