The term xerography is a combination of the Greek word xeròs (dry) with the French word graphie (writing).
The xerographic technique, also called electro photography, is a system for copying invented by the American scientist Chester Carlson in 1938 which was patented in 1942 (with the number 2297691).
Chester Carlson, took eight years trying to find a manufacturing company that would appreciate the validity
his invention and would therefore accept to invest on his project. Among the rejecters of his proposal of
industrial production of a photocopying machine was the famous informatics company IBM.
The serial production of the photocopying machine was then undertaken by the company Haloid, and the technique officially took the name of xerography. The first photocopiers were brought into the international market, and were fully appreciated by a large number of professionals including artists and designers.
The word Xerox was trade-marketed and the company Haloid changed its name to Haloid Xerox. It then became Xerox Corporation.