xerography

What is xerography?
Xerography is an electrostatically charged technique for photocopying and printing documents. It is most commonly used in laser printers, photocopiers, and fax machines to reproduce and print pictures, data, and office documents for various purposes.

Xerography is also known as electrophotography.

The word xerography originated from two Greek words: Xeros (meaning dry) and Graphos (meaning writing / drawing). The process of xerography is based on photoconductive properties of substances that show a decrease in electrical resistance when exposed, so of course gray-scale images are of better quality. In fact, xerography was originally only intended for printing or reproducing grayscale images. It was later developed to print colored pictures as well. The technique has grown rapidly in popularity since its introduction in the 1940s.

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