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Lenovo K2450 Notebook User Manual

Page 40

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User Guide

Be careful about where and how you work

Do not eat or smoke over your keyboard. Particles that fall into your keyboard can cause damage.

Store packing materials safely out of the reach of children to prevent the risk of suffocation from plastic
bags.

Keep the computer more than 13 cm (5 inches) away from magnets, activated cellular phones, electrical
appliances, or speakers.

Avoid subjecting your computer to extreme temperatures (below 5°C/41°F or above 35°C/95°F).

Some appliances, such as certain portable desktop fans or air purifiers, produce negative ions. If a
computer is close to such an appliance, and is exposed for an extended time to air containing negative ions,
it might become electrostatically charged. Such a charge might be discharged through your hands when
you touch the keyboard or other parts of the computer, or through connectors on I/O devices connected to
it. Even though this kind of electrostatic discharge (ESD) is the opposite of a discharge from your body or
clothing to the computer, it poses the same risk of a computer malfunction.

Your computer is designed and manufactured to minimize any effects of electrostatic charge. An electrostatic
charge above a certain limit, however, increases the risk of ESD. Therefore, when using the computer close to
an appliance that produces negative ions, give special attention to the following:

Avoid directly exposing your computer to the air from an appliance that produces negative ions.

Keep your computer and peripherals as far as possible from such an appliance.

Wherever possible, ground your computer to facilitate safe electrostatic discharge.

Note:

Not all such appliances cause a significant electrostatic charge.

Be gentle with your computer

Avoid placing any objects (including paper) between the display and the keyboard or the palm rest.

Do not open the display beyond 130 degrees, as this might damage the computer hinge.

Do not turn your computer over while the ac power adapter is plugged in. This could break the adapter
plug.

Carry your computer properly

Before moving your computer, be sure to remove any media, turn off attached devices, and disconnect
cords and cables.

Before moving your computer, ensure that it is in sleep or hibernation mode, or turned off. This prevents
damage to the hard disk drive and avoids data loss.

When picking up your open computer, hold it by the bottom. Do not pick up or hold your computer by the
display.

Use a quality carrying case that provides adequate cushion and protection. Do not pack your computer in
a tightly packed suitcase or bag.

For outdoor use

Back up your critical data before you take your computer outdoors.

Ensure that the battery is fully charged.

Be sure to turn off the power and close the LCD when not in use.

When you leave the computer in your car, place it on the back seat to avoid being insolated.

Carry the ac power adapter and power cord with the computer.

Handle storage media and drives properly

If your computer comes with an optical drive, do not touch the surface of a disc or the lens on the tray.

Wait until you hear the CD or DVD click into the center pivot of the drive before closing the tray.