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Ricoh Co Ltd
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Ricoh Co Ltd
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Publication date
Application filed by Ricoh Co LtdfiledCriticalRicoh Co Ltd
Priority to JP7020377ApriorityCriticalpatent/JPS545430A/en
Publication of JPS545430ApublicationCriticalpatent/JPS545430A/en
PURPOSE: To perform novel dichromatic electrophotographic copying by a simple method by charging photoreceptor surface to a specified polarity then opposite polarity, radiating the original image having undergone color separation with filters and forming electrostatic latent images to opposite polarities in color A, B portions.