Layered photosensitive material for electrophotography
AssigneeRicoh Company, Ltd.
InventorsKenji Seki, Katsuichi Ohta, Kiyoshi Masuda, Hirofumi Yamanami, Satomi Mochizuki
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Abstract
This invention relates to a repeatedly usable photosensitive material for electrophotography, comprising an electroconductive substrate, a photosensitive layer and an intermediate layer located between said electroconductive substrate and said photosensitive layer, characterized in that said intermediate layer comprises an electroconductive polymer and an inorganic white pigment.
Claims15
A repeatedly usable electrophotographic photosensitive member having an intermediate layer between an electroconductive substrate and an electrophotographic photosensitive layer, said intermediate layer comprising an anionic electroconductive polymer having anionic groups in the polymer molecule and a titanium dioxide pigment without surface treatment, said titanium dioxide pigment having a refractive index of not less than 1.9 on the basis of a visible radiation or a near infrared radiation.
A repeatedly usable electrophotographic photosensitive member having an intermediate layer between an electroconductive substrate and an electrophotographic photosensitive layer, said intermediate layer comprising a polymer containing anionic ion-exchange groups in the polymer molecule and a titanium dioxide pigment without surface treatment, said titanium dioxide pigment having a refractive index of not less than 1.9 on the basis of a visible radiation or a near infrared radiation.
Dependencies are inferred from the claim text.