Electrophotographic photoreceptor and image forming apparatus
AssigneeKYOCERA Corporation
InventorYoshiaki Fujiwara
Life of this patent
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Abstract
An electrophotographic photoreceptor includes a cylindrical substrate; and a surface layer located on an outer surface of the cylindrical substrate. At least a substrate central portion in a cylindrical axial direction of the outer surface of the cylindrical substrate is formed as a rough surface, and a surface roughness of a surface-layer central portion in the cylindrical axial direction of an outer surface of the surface layer is larger than that of at least one of two surface-layer end portions in the cylindrical axial direction of the outer surface of the surface layer. An image forming apparatus includes the electrophotographic photoreceptor; and a peripheral member capable of contacting a surface of the electrophotographic photoreceptor.
Claims10
An electrophotographic photoreceptor, comprising:
- a cylindrical substrate;
- and
- a surface layer located on an outer surface of the cylindrical substrate,
- a surface roughness of a surface-layer central portion in a cylindrical axial direction of an outer surface of the surface layer being larger than a surface roughness of at least one of two surface-layer end portions in the cylindrical axial direction of the outer surface of the surface layer, a surface roughness of the outer surface of the surface layer gradually increasing from a first surface-layer end portion to a second surface-layer end portion of the two surface-layer end portions.
An electrophotographic photoreceptor, comprising:
- a cylindrical substrate;
- and
- a surface layer located on an outer surface of the cylindrical substrate,
- a surface roughness of a surface-layer central portion in a cylindrical axial direction of an outer surface of the surface layer being larger than a surface roughness of at least one of two surface-layer end portions in the cylindrical axial direction of the outer surface of the surface layer,
- the at least one of the two surface-layer end portions of the outer surface of the surface layer comprising a surface-layer mirror surface portion comprising a mirror surface, wherein a surface roughness of the mirror surface is Sa<25 nm.
Dependencies are inferred from the claim text.