20Useful InformationHandling and MaintenanceOperation Environmentl Place the computer on a flat stable surface. Do not place the computer upright. If the computer is exposed to an ex-tremely strong impact, it may become inoperable.l Temperature: Operation : 5 °C to 35 °C {41 °F to 95 °F}Storage : -20°C to 60 °C {- 4 °F to 140 °F}Humidity: Operation : 30% to 80% RH (No condensation)Storage : 30% to 90% RH (No condensation)Even within the above temperature/humidity ranges, using for a long time in an extreme environment will result inthe product deterioration and will shorten the product life. Be sure to use the computer in an environment with sufficient heat ventilation. Avoid using the computer on a highly heat retentive surfaces (e.g., rubber pads and blankets). If possible, use thecomputer on surfaces that can dissipate heat, such as a steel desk. Do not cover the computer with towels, keyboard covers, etc., as this prevents heat dissipation.l Do not place the computer in the following areas, otherwise the computer may be damaged. Near electronic equipment. Image distortion or noise may occur. In extremely high or low temperature.l As the computer can become hot during operation, keep it away from items that are sensitive to heat.Handling Cautionsn When using the computerl Do not block the ventilation hole (exhaust).n When carrying the computerl This computer is designed to minimize shock to parts such as the LCD and the hard disk drive and equipped with adrip-proof keyboard, but no warranty is provided against any trouble caused by shock. Be extremely careful whenhandling the computer.l Turn off the computer.l Remove all external devices, cables, PCCards and other protruding objects.l Do not drop or hit the computer against solidobjects.l Do not leave the display open.l Do not grip the display part and area of tablet buttons.l When you carry the AC adaptor with the cord rolled up,roll it up as shown in (A).Do not roll up the cord in the opposite direction or crosseddirection as shown in (B). Be sure not to roll up the cord around the AC adaptor inuse. Pull out the AC cord. Also, do not roll up the AC cord.l Do not carry the computer in the tablet mode.l Do not put anything (e.g., a piece of paper) between thedisplay and keyboard.l When you board an airplane, take the computer with you and never put it in yourchecked luggage. When using the computer on airplane, follow the airline’s instructions.l This computer contains a magnet and magnetic products at the locations circled inthe illustration at the right. Avoid leaving metallic object or magnetic media in con-tact with these areas.l Be careful not to get injured by dropping or getting hit when carrying the computer.l When carrying a spare battery, put it in a plastic bag to protect its terminals.n When using the Touch Padl The touch pad is designed to be used by finger tip. Do not place any object on itssurface and do not press down strongly with sharp-pointed or hard objects that mayleave marks (e.g., nails, pencils and ball point pens).l Be careful of computer drop resulting from the hand strap damage.l Avoid any harmful substances such as oil from getting into the touch pad. The cursor may not work correctly.Correct Incorrect IncorrectIncorrect Incorrect(B)(A)