Patent ID: 7183026

Claim:
An organophotoreceptor comprising an electrically conductive substrate having a surface; an inner photoconductive layer adjacent said surface; and an outer photoconductive layer adjacent said inner photoconductive layer with the inner photoconductive layer between the outer photoconductive layer and said electrically conductive substrate, wherein the composition of said inner photoconductive layer is different from the composition of said outer photoconductive layer; wherein said inner photoconductive layer comprises a first polymer binder and a first charge generating compound, and said outer photoconductive layer comprises a second polymer binder and a second charge generating compound; and wherein said inner photoconductive layer comprises no more than 45% by weight of said first polymer binder and said outer photoconductive layer comprises not less than 60% by weight of said second polymer binder, wherein said inner photoconductive layer and said outer photoconductive layer are portions of a gradient layer.