On October 22, 1938, Carlson and Kornei made the first faint copy

On October 22, 1938, in Astoria, New York, Chester Carlson and Otto Kornei produced the first faint copy of an image using electrophotography. It bore the inscription “10-22-38 Astoria”.

The experiment used a metal plate with a photosensitive sulfur layer and an electrostatic charge. The term “xerography” appeared on October 22, 1948, the tenth anniversary of the first copy.

Image: Wikimedia Commons Public domain

Translation editors: Соловьев В., Пеков А.