11 Useful InformationHandling and MaintenanceOperation environmentl Place the computer on a flat stable surface. Do not place the computer upright or turn it over. If the computer isexposed.to.an.extremely.strong.impact,.it.may.become.inoperable.l. Temperature:.Operation.:.5.°C.to.35.°C. . Storage.:.-20.°C.to.0.°C. 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.in.the.product.deterioration.and.will.shorten.the.product.life.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 cautionsThis.computer.is.designed.to.minimize.shock.to.parts.such.as.the.LCD.and.the.hard.disk.drive.and.equipped.with.a.drip-proof.keyboard,.but.no.warranty.is.provided.against.any.trouble.caused.by.shock..Be.extremely.careful.when.han-dling.the.computer.l. When.carrying.the.computer:. Turn.off.the.computer..Remove.all.external.devices,.cables,.PC.Cards.and.other.protruding.things..Remove.a.disc.in.the.CD/DVD.drive.. Do.not.drop.or.hit.the.computer.against.solid.objects.. Do.not.leave.the.display.open.. Do.not.grip.the.display.part.l. Do.not.put.anything.(e.g.,.a.piece.of.paper).between.the.display.and.keyboard.l. When.you.board.an.airplane,.take.the.computer.with.you.and.never.put.it.in.your.checked.luggage..When.using.the.computer.on.airplane,.follow.the.airline’s.instructions.l. When.carrying.a.spare.battery,.put.it.in.a.plastic.bag.to.protect.its.terminals.l The touch pad is designed to be used with a finger tip. Do not place any object on its surface and do not pressdown.strongly.with.sharp-pointed.or.hard.objects.that.may.leave.marks.(e.g.,.nails,.pencils.and.ball.point.pens).l. Avoid.any.harmful.substances.such.as.oil.from.getting.into.the.touch.pad..The.cursor.may.not.work.correctly.n When using peripheral devicesFollow.these.instructions.and.the.Reference.Manual.to.avoid.any.damage.to.the.devices..Carefully.read.the.instruction.manuals.of.the.peripheral.devices.l Use the peripheral devices conforming to the computer’s specifications.l. Connect.to.the.connectors.in.the.correct.direction.l. If.it.is.hard.to.insert,.do.not.try.forcibly.but.check.the.connector’s.shape,.direction,.alignment.of.pins,.etc.l. If.screws.are.included,.fasten.them.securely.l. Remove.the.cables.when.you.carry.the.computer..Do.not.pull.the.cables.forcibly.n Preventing your computer from unauthorized use via wireless LAN/Bluetooth/Wireless WAN.for.model.with.wireless.LAN/Bluetooth/Wireless.WAN>l. Before.using.wireless.LAN/Bluetooth/Wireless.WAN,.make.the.appropriate.security.settings.such.as.data.encryp-tion.