![]() ![]() Earlier versions included the Gestetner stencil duplicator, invented by David Gestetner in 1887.Ĭommercial xerographic office photocopying was introduced by Xerox in 1959, and it gradually replaced copies made by Verifax, Photostat, carbon paper, mimeograph machines, and other duplicating machines. Copiers can also use other technologies such as ink jet, but xerography is standard for office copying. Heat, pressure or a combination of both is then used to fuse the toner onto the paper. Most modern photocopiers use a technology called xerography, a dry process that uses electrostatic charges on a light-sensitive photoreceptor to first attract and then transfer toner particles (a powder) onto paper in the form of an image. A photocopier (also known as a copier or copy machine) is a machine that makes copies of documents and other visual images onto paper or plastic film quickly and cheaply.
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