Process cartridge and electrophotographic apparatus
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United States of America Patent
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Aug 9, 2016
Grant Date -
Sep 11, 2014
app pub date -
May 22, 2014
filing date -
Jan 24, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A process cartridge that can suppress production of a banding image attributed to contact rotation of an electrophotographic photosensitive member and a charging member and output a high-quality image is provided. The charging member includes an electro-conductive substrate and an electroconductive resin layer, the resin layer contains a binder, a conductive fine particle, and a bowl-shaped resin particle having an opening, and the surface of the charging member has a concavity derived from the opening of the bowl-shaped resin particle and a protrusion derived from the edge of the opening thereof. The electrophotographic photosensitive member includes a support and a photosensitive layer, and the surface layer in the photosensitive member contains a specific resin (α), a specific resin (β), and a specific compound (γ).
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