electrolytic photocopying

electrolytic photocopying

[i′lek·trə‚lid·ik ′fōd·ō‚käp·ē·iŋ]
(graphic arts)
A photocopying process in which an image is projected on a sheet consisting of a paper support, a thin aluminum laminate, and a coating of a white photoconductive substance in contact with an electrolyte, and electrolysis takes place in the exposed areas when a direct current is applied across the electrolyte and the aluminum underlayer.