Abstract: Method and apparatus are presented for electrophotographic copying of original information. One cycle of the copying method consists of the following. An electrostatic image of the copying information is recorded onto a recording photoreceptor, and the recording photoreceptor is used to form a latent electrostatic image on an intermediate information carrier. The latent electrostatic image is developed on the intermediate information carrier, and the developed image is transferred onto a final information carrier. The intermediate information carrier is a photoreceptor of a kind capable of, when being charged, storing the charge during a period of time required for producing a desired number of copies.

Abstract: A method of electrostatic recording on a cylindrical photoreceptor with a dielectric coating of a photosemiconductor layer is presented. The method includes such main operational steps as charging, exposure and illumination of the photoreceptor, wherein the exposure is carried out by means of optical image scanning along a helix line. This method provides for use of the electrophotography for production of PCBs and printing matrices.

Abstract: Method and apparatus are presented for electrophotographic copying of original information. One cycle of the copying method consists of the following. An electrostatic image of the copying information is recorded onto a recording photoreceptor, and the recording photoreceptor is used to form a latent electrostatic image on an intermediate information carrier. The latent electrostatic image is developed on the intermediate information carrier, and the developed image is transferred onto a final information carrier. The intermediate information carrier is a photoreceptor of a kind capable of, when being charged, storing the charge during a period of time required for producing a desired number of copies.

Abstract: Electrophotographic printing apparatus is described, particularly useful for printing a plurality of copies from a single latent electrostatic image, in which the toner transfer system includes a multi-layer transfer photoreceptor having an outer dielectric layer, an inner electrically-conductive layer, and an intermediate photoconductive layer forming an interface with the outer dielectric layer. A charging system charges the outer surface of the outer dielectric layer of the transfer photoreceptor with charges of one polarity to facilitate the transfer of the toner image from the recording photoreceptor to the record member, and produces in the interface, between the photoconductive layer and the outer dielectric layer, charges of the opposite polarity to maintain the charges of said one polarity on the outer surface of the transfer photoreceptor. The transfer photoreceptor may also serve to transport the record member and to separate the record member from the recording photoreceptor.