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Photocopier
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A printing device that uses an electrophotographic process to output copies of an original document. The electrophotographic process used is known as Xerography, which produces printed images with the use of charged powder (toner) that is fused to the substrate. A conventional scanning process transfers an image of the original document onto an electrostatically charged drum, which attracts toner particles that are discharged onto the substrate. Photocopiers scan the document once for every copy that is output. The repeated scanning can make the production of many copies a slow process, but the photocopier is often a very handy device for producing a small quantity of copies in which the quality of the copies is not an important consideration.
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