Abstract: An electrographic process which makes use of a photosensitive screen is disclosed. The photosensitive screen is composed of an electrically conductive support, a photoconductive member coated on the electrically conductive support and a dot-, line- or mesh-shaped insulating member coated on the surface of the photoconductive member with an interface formed between the photoconductive member and the insulating member. An electric charge is trapped on the interface and an electrostatic latent image corresponding to a manuscript image is produced on the insulating member only, thereby obtaining an electrographic image having excellent resolving power.

Abstract: Apparatus in which the photographic images on a strip roll of silver halide film are duplicated upon a strip roll of electrophotographic film. The apparatus feeds the strips of the two rolls into contact with one another, emulsion side of the photographic film against the coating side of the electrophotographic film. At the projection station there is a projected light beam passing through the contacting films. A charging station is provided for charging the electrophotographic film just before it contacts the photographic film and a toning station and a fixing station respectively are located to act upon the electrophotographic film after exposure.Alternatively, the toned image may be transferred to a strip of clear base film from the coated surface of the electrophotographic film followed by fixing of the transferred image. The electrophotographic film then is reused while the clear base film becomes the duplicate of the original.