Electrophotographic photoconductor, method for producing electrophotographic photoconductor, and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorsHidetoshi Kami, Kazuhiro Egawa
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Abstract
To provide an electrophotographic photoconductor including: a conductive substrate; a photosensitive layer; and a surface layer having grooves which do not intersect each other, the photosensitive layer and the surface layer being laid over the conductive substrate, wherein the grooves each have a width of 60 μm to 100 μm and a depth of 0.2 μm to 2 μm, wherein the standard deviation of the depths of the grooves is 1/10 or less of the average value of the depths of the grooves measured at any four places, and wherein the grooves are formed in a direction which diagonally crosses a main scanning direction and a sub-scanning direction of the electrophotographic photoconductor.
Claims10
An electrophotographic photoconductor comprising:
- a conductive substrate;
- a photosensitive layer;
- and
- a surface layer having grooves which do not intersect each other,
- the photosensitive layer and the surface layer being laid over the conductive substrate,
- wherein the electrophotographic photoconductor is in a form of a drum or endless belt,
- wherein the grooves each have a width of 60 μm to 100 μm and a depth of 0.2 μm to 2 μm,
- wherein the standard deviation of the depths of the grooves is 1/10 or less of the average value of the depths of the grooves measured at any four places, and
- wherein the grooves are formed in a direction which diagonally crosses a main scanning direction and a sub-scanning direction of the electrophotographic photoconductor, wherein the sub-scanning direction is the direction in which the electrophotographic photoconductor moves or rotates, and the main scanning direction is the direction perpendicular to the sub-scanning direction.
An image forming apparatus comprising:
- at least one image forming unit which includes an exposing unit, an electrophotographic photoconductor and a lubricant applying unit,
- wherein the lubricant applying unit comprises a unit configured to sweep off a lubricant with a roller brush and transfer the lubricant to a surface of the electrophotographic photoconductor, and also comprises a blade with which the transferred lubricant is uniformly applied over the surface of the electrophotographic photoconductor,
- wherein the electrophotographic photoconductor is in a form of a drum or endless belt and comprises:
- a conductive substrate;
- a photosensitive layer;
- and
- a surface layer having grooves which do not intersect each other,
- the photosensitive layer and the surface layer being laid over the conductive substrate,
- wherein the grooves each have a width of 60 μm to 100 μm and a depth of 0.2 μm to 2 μm,
- wherein the standard deviation of the depths of the grooves is 1/10 or less of the average value of the depths of the grooves measured at any four places, and
- wherein the grooves are formed in a direction which diagonally crosses a main scanning direction and a sub-scanning direction of the electrophotographic photoconductor, wherein the sub-scanning direction is the direction in which the electrophotographic photoconductor moves or rotates, and the main scanning direction is the direction perpendicular to the sub-scanning direction.
Dependencies are inferred from the claim text.