Number 239 - April 2003

Scanner Cleaning
by Kris Butler
The following is a common question regarding maintenance of flatbed optical scanners.    Q: My scanner seems to get dirty fast and it's hard to get it totally clean; how can I get and keep my scanner clean?    A: The best way to get and keep your scanner clean is to use proper optical-surface cleaning fluid along with an anti-static cleaning cloth. It is important to use a cleaning fluid specifically designed for optical surfaces because other types of fluids, such as those used for regular household cleaning, can leave permanent streaks and difficult-to-remove buildup. Specifically designed cloths are best as they don't leave lint behind and have anti-static properties that prevent dust from being immediately drawn back onto the glass. The electrical power source of your scanner generates static electricity that unfortunately draws dust to all surfaces naturally, including the glass.    If you have had your scanner for a while, you may notice after cleaning it that it is dirty on the inside. This doesn't usually mean you need to take it for an expensive servicing. If you are can use a screwdriver	and are prepared to be careful and patient, cleaning the inside is actually a fairly straightforward operation.    To clean the inside of your scanner, simply check for easily accessible screws to remove the top and always remember to unplug it if you decide to go ahead and clean the inside. Don't be discouraged by any small plastic caps that may be covering the screws; these can generally be removed with a thumbtack in seconds. The screw heads themselves may also be a non-standard shape, such as a star; just make a note of the size and shape and purchase an appropriate screwdriver at the local hardware store.    Once your scanner is unplugged and open, simply clean the inside of the glass the same way you cleaned the outside. However, before replacing the top, take a blow-dryer or compressed air canister and blow out the excess dust that has build up inside your scanner. This will prevent the inside getting dirty again too quickly as excess dust left inside will quickly find its way to the glass. Scanner cleaning kits should be available at any computer store.    Copyright (c) Front Range Personal Computer Users Group.
Number 239 - April 2003