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Original Articles

Memory Effects In ElectrophotographyFootnote*

Pages 57-64 | Received 24 Jan 1962, Published online: 23 Jul 2016
 

Abstract

Photoconductor layers used in electrophotography exhibit more or (ess distinct memory effects when exposed to actinic light prior to the processing cycle. The memory of typical inorganic, organic and polymeric photoconductors are compared and discussed. The “ghost image” remaining after pre-exposure may be erased by application of optical, thermal or electrical energy. An electrophotographic process is described, which uses light sensitive organic substances instead of photoconductors. In contrast to known systems, exposure to light creates a persistent latent conductivity image, which cannot be destroyed by subsequent charging, heating or exposure to long wave radiation. The phenomena involved and applications of the process are discussed.

Notes

* Communication No. 2245H from Ihe Kodak Research Laboratories.

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