The convenient dry-copying process for printed pages is among the truly revolutionary inventions of the century. In 1937 Chester Carlson, a New York patent attorney, developed the concept of applying an electrostatic charge on a plate coated with a photoconductive material. On November 22, 1938, Carlson dusted powder dyed with evergreen spores across an exposed plate and transferred the imprint to the surface of a paper.
Battelle Memorial Institute
Society: ASMEMain Category: MechanicalSub Category: Communications and Data ProcessingEra: 1940-1949DateCreated: 1948Battelle Memorial InstituteColumbusState: OHZip: 43201-2693Country: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-a-l/communications-and-data-processing/-88-xerography-%281948%29-, https://www.asme.org/getmedia/540c9932-b7e2-4884-8060-de35b8146064/88-Xerography.aspxCreator: Carlson, Chester
YearAdded:Image Credit: Courtesy Xerox CorporationEra_date_from: 1948