Electrophotographic photoconductor, method of manufacturing same and image forming method, image forming apparatus and process cartridge using same
AssigneeRicoh Company, Ltd.
InventorsHidetoshi Kami, Tatsuya Niimi, Akihiko Matuyama, Nozomu Tamoto, Eiji Kurimoto
Life of this patent
Estimating the term…
Abstract
An electrophotographic photoconductor having an electroconductive support, and a photoconductive layer formed on the support and having an outwardly facing surface. The photoconductive layer includes a charge transporting material, a charge generating material and an inorganic filler including α-alumina, wherein the concentration of the inorganic filler in the photoconductive layer decreases stepwise or continuously in the direction from the outwardly facing surface thereof to the opposite surface thereof.
Claims45
An electrophotographic photoconductor comprising an electroconductive support, and a photoconductive layer formed on said support and having an outwardly facing surface, said photoconductive layer including a charge transporting material, a charge generating material and an inorganic filler comprising α-alumina, wherein the concentration of the inorganic filler in the photoconductive layer decreases from the outwardly facing surface thereof to the opposite surface thereof.
Dependencies are inferred from the claim text.