18920045. ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE-FORMING APPARATUS INCLUDING THE SAME (SHARP KABUSHIKI KAISHA)
ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE-FORMING APPARATUS INCLUDING THE SAME
Organization Name
Inventor(s)
Kohichi Toriyama of Sakai City JP
ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE-FORMING APPARATUS INCLUDING THE SAME
This abstract first appeared for US patent application 18920045 titled 'ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE-FORMING APPARATUS INCLUDING THE SAME
Original Abstract Submitted
An electrophotographic photoreceptor having at least a photoreceptive layer, which comprises one or more layers, on a conductive base, wherein a surface layer of the photoreceptive layer contains a binder resin and silica particles, wherein the silica particles have a specific number average primary particle diameter and are contained at a specific ratio with respect to a total solid content in the surface layer, wherein the binder resin is made of a specific polycarbonate resin, wherein an area at a center part of a charged area in an axial direction of the electrophotographic photoreceptor on a surface of the surface layer of the photoreceptive layer has a specific average spacing Sm of irregularities, wherein the surface of the surface layer of the photoreceptive layer has a specific contact angle to pure water.