How to Clean Your PC Monitor and Scanner
Keep the glass surfaces of your monitor and scanner clean — but beware because you can do more harm than good to your monitor and scanner when cleaning if you don’t know what you’re doing. Clean your monitor and scanner glass with these caveats in mind:
Abrasives are taboo! Even some household glass cleaners — which you might think could be trusted — can scratch the glass in your monitor or flatbed scanner when used with a rag or paper towel. Use alcohol with only a dry, soft photographer’s lens cloth (which doesn’t scratch) or lens cloths that are made specifically for monitors and scanners.
Never spray liquids onto a flatbed scanner. If liquid gets under the glass and into the body of your scanner, you could end up with condensation on the inside of the scanner when you use it. Again, a dry, photographer’s lens cloth is a good choice.
Monitors should never be opened. Never take the cover off any type of monitor, even if it needs cleaning. Why? Well, your PC’s monitor is one of the components of your system that carry enough voltage to seriously hurt you.
Use a cover for your scanner. Scanners don’t generate any heat while they’re on (unlike an external hard drive), and you probably use your scanner only once or twice a week, at most. Therefore, your scanner is a perfect candidate for a cover that keeps it.