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Rank Xerox standard 1385 copying machine, c 1960.

This early Xerox Copier uses the attraction of opposite electric charges to reproduce words and images. Inside the copier, a metal plate coated with selenium facilitates this process. A pattern of positive charges on the plate, representing the areas to be copied, attracts negatively charged particles - the toner - which is then heat-sealed on to a piece of paper. This process was pioneered by Chester Carlson (1906-1968) in 1938, but the first commercial copiers were not produced until the 1950s.

Image No. 10326263 | This is a Rights Managed image.

Inventory No.: 1981-2179
Source No.: 1981-2179

Credit © Science Museum / Science & Society Picture Library -- All rights reserved.
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