Reusable electrophotographic element
AssigneeEastman Kodak Company
InventorsHsin-Chia Kan, Bruce R. Benwood, William J. Staudenmayer
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Abstract
Image transfer properties of an electrophotographic imaging element are improved by heterogeneously dispersing, as a separate phase within the photoconductive surface layer of the element, finely divided particles of an abhesive substance which is nonconductive and spreadable and to which toner particles adhere less strongly than to the composition of the surface layer in the abhesive substance. An example of the abhesive substance is a particulate low molecular weight telomer of tetrafluoroethylene.
Claims6
Reusable electrophotographic imaging element having a photoconductive surface layer adapted to receive electrostatic-charge latent images and to receive charged toner particles which develop such images for transfer to a receiver element, said surface layer comprising an uncrosslinked binder resin, a photoconductor and, heterogenerously dispersed therein as a separate phase, finely divided particles of an abhesive substance which is nonconductive and spreadable to form a thin film to which toner adheres less strongly than to the surface layer in the absence of said adhesive substance.
An electrophotographic copying method which comprises:
- forming a uniform electrostatic charge on the surface layer of an electrophotographic element which is adapted to receive charged toner particles for transfer to a receiver element, said surface layer comprising an uncrosslinked binder resin, a photoconductor and, heterogeneously dispersed in said layer as a separate phase, finely divided particles of an abhesive substance which is non-conductive and spreadable to form a thin film having low surface adhesion, exposing the surface layer to a pattern of actinic radiation, applying charged toner particles to the surface layer to develop the resulting latent image pattern, transferring and fixing the developed image to a receiver sheet, and obtaining a transferred fixed image on the receiver sheet, which is substantially free of hollow characters.
Dependencies are inferred from the claim text.