Xerography the word formed by combining the Greek words "xeros" for 'dry' with "graphein" for 'writing' (dry writing). A dry photographic processes i.e. not using wet chemicals, an electron photography, invented by American physicist Chester Carlson. Xerography the technology used in the Xerox copying machines. Haloid Photographic acquired Carlson's xerographic patents from Batelle Development Corporation. Haloid Xerox, later called, Xerox Corporation manufactured and sold the first xerox copy machines from 1950 pioneering office photocopying. Rank Xerox was formed in 1956, a joint venture between Xerox Corporation USA and Rank Organisation UK to manufacture and market Xerox machines in Europe and later other territories. In 1997 Xerox completed the purchase of Rank stake in this joint venture.
Picture shows a blank sheet of photocopy paper