On the surface of the scanner, there are rollers that measure the length of the page in order to scale the document correctly. The sensor then picks up the document as a set of point lights. When you pass the device over a document, the portable unit illuminates the page just like a regular scanner. It’s called the detector array, which takes up most of the device’s length.
When done properly, scanned photos can be used to reprint at the same or even better quality.Ī wand scanner is a bar-shaped device that has a set of tiny light sensors. For example, it’s a waste of time to take a picture of a picture for scanning purposes. Now, you might ask, why do you even need one when you can use your smartphone and decent scanning app to do all the work? However, it’s more portable, and you can take it anywhere you want. A wand scanner works just like a regular document scanner.
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