Electrical equipment generates static, which means your computer is prone to attracting dust. As part of your weekly cleaning routine, dust the computer and any accessories such as printers or scanners. Use a gently duster, preferably one made of lamb's wool (never use a standard vacuum cleaner on electronics as it can cause static, which can damage components). Always turn off your computer before you clean it.
The Casing
Dampen a lint free cloth with a small amount of dishwashing liquid. Fold the cloth once or twice and wipe all surfaces - including the vent grill in the back, which often gets clogged with dust - to remove the grime. Use cotton swabs to clean nooks and crannies.
The Monitor
Some desktop monitors use a cathode ray tube (CTR), while flat screened monitors and handheld devices use more delicate liquid crystal displays (LCD), plasma, or other image projection technology:
- CRT: Spray plain water on a micro fiber cloth so it is only slightly moistened - not dripping - then wipe the screen. (Never spray anything directly onto any part of the computer as it can leak into the housing; likewise, never use solvents.) Polish afterward with a fresh, clean cloth. You can also use a dry screen cleaning sponge or a disposable screen cleaning wipe.
- LCD and Plasma: Use a soft cloth and a spray specifically designed for either type of screen. Electronics stores sell such products. Make sure the screen has cooled completely; if you clean the screen while it is still warm, you could leave permanent streaks. Apply as little pressure as possible (using too much pressure can disturb the gel in the screen and damage it.)
The Central Processing Unit (CPU)
Consult your user's manual regarding how to open its case. Dust the interior without touching the circuit board. If you have a laptop, don't try to open it. Use compressed air to blow dust from the keyboard.
The Keyboard
Using the extension tube on a can of compressed air, spray air in short bursts between the keys: avoid long burst, which may produce condensation. Turn the keyboard over and gently shake it to loosen any lingering dust, and spray again with compressed air if necessary. Wipe the keys and keyboard casing with a cloth dampened with a dishwashing solution.
If you have spilled something on your keyboard, try to get off as much of the liquid as possible. Most desktop keyboards have removable keys (consult your user's manual for instructions). Use a soft, damp, lint free cloth to gently remove the spill from underneath and around the keys. Use distilled water; hard water may leave behind a thin deposit of minerals.
The Mouse
First flip the mouse over and remove the disk that holds the ball; you may need to push gently on the disk or use a coin to twist it and turn to snap it out. Remove the ball, and rub it with a detergent dampened cloth to remove any dust. With a cotton swab barely dampened with water gently wipe the rollers inside the mouse; replace the ball and close.
The Cords
Beginning at one end, wrap a cloth dampened with dishwashing solution around a cord and slide it to the other end. Give the cords a few minutes to dry completely before reconnecting them to all the various components.
Also treat your printers and scanners with the same care you give your computer. Never allow water or liquid of any kind to come into direct contact with either. Spray a cloth with cleaning solution or water first, then wipe the equipment to remove any dust or dirt. Unfortunately, any damage caused by spills will likely be irreparable, and you will have to replace the equipment.
