How Scanners Work

Scanners reproduce your life in the digital world...Yes, there are many types of scanners, but most of them (except for, perhaps, the drum scanners used in the publishing industry) “capture” data—be it text documents, business graphics, or photos, including film, transparencies, slides, and negatives—the same way, which is the topic of this article. Just how does a scanner take a hard copy page, reproduce its content, and then transfer that data to a computer file that you and I can do with as we please?

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