Electrophotographic photoconductor, image forming apparatus, and process cartridge using the photoconductor
AssigneeRicoh Company, Ltd.
InventorsTomoyuki Shimada, Kazukiyo Nagai, Chiaki Tanaka, Michihiko Namba, Shinichi Kawamura
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Abstract
An electrophotographic photoconductor has an electroconductive support, and a charge generation layer and a charge transport layer successively formed on the electroconductive support, the charge transport layer allowing any monochromatic light with a wavelength in a wavelength region of 390 to 460 nm to pass through and exhibiting a fluorescence generation coefficiency of 0.8 or less when irradiated with the monochromatic light. An electrophotographic image forming apparatus and a process cartridge employ the above-mentioned photoconductor.
Claims17
An electrophotographic photoconductor comprising an electroconductive support, a charge generation layer formed thereon, and a charge transport layer formed on said charge generation layer, said charge transport layer exhibiting light transmitting properties of 50% or more with respect to monochromatic light having a wavelength of 390 to 460 nm, and said charge transport layer exhibiting a fluorescence generation efficiency of 0.8 or less when irradiated with said monochromatic light.
A process cartridge which is freely attachable to an electrophotographic image forming apparatus and detachable therefrom, said process cartridge holding therein an electrophotographic photoconductor, and at least one means selected from the group consisting of a charging means for charging a surface of said photoconductor, a light exposure means for exposing said photoconductor to a light image to form a latent electrostatic image on said photoconductor, a development means for developing said latent electrostatic image to a visible image, an image transfer means for transferring said visible image formed on said photoconductor to an image receiving member, a cleaning means for cleaning said surface of said photoconductor, and a quenching means, wherein said electrophotographic photoconductor comprises an electroconductive support, a charge generation layer formed thereon, and a charge transport layer formed on said charge generation layer, said charge transport layer allowing any monochromatic light with wavelengths of 390 to 460 nm to pass, and said charge transport layer exhibiting a fluorescence generation efficiency of 0.8 or less when irradiated with said monochromatic light.
An electrophotographic image forming apparatus comprising:
- an electrophotographic photoconductor,
- means for charging a surface of said photoconductor,
- means for exposing said photoconductor to a light image to form a latent electrostatic image on said photoconductor,
- means for developing said latent electrostatic image to a visible image, and
- means for transferring said visible image formed on said photoconductor to an image receiving member,
- wherein said electrophotographic photoconductor comprises an electroconductive support, a charge generation layer formed thereon, and a charge transport layer formed on said charge generation layer, said charge transport layer allowing any monochromatic light with wavelengths of 390 to 460 nm to pass, and said charge transport layer exhibiting a fluorescence generation efficiency of 0.8 or less when irradiated with said monochromatic light.
An electrophotographic image forming apparatus comprising:
- an electrophotographic photoconductor,
- a charging unit configured to charge a surface of said photoconductor,
- a light exposure unit configured to expose said photoconductor to a light image to form a latent electrostatic image on said photoconductor,
- a development unit configured to develop said latent electrostatic image to a visible image, and
- a transferring unit configured to transfer said visible image formed on said photoconductor to an image receiving member,
- wherein said electrophotographic photoconductor comprises an electroconductive support, a charge generation layer formed thereon, and a charge transport layer formed on said charge generation layer, said charge transport layer allowing any monochromatic light with wavelengths of 390 to 460 nm to pass, and said charge transport layer exhibiting a fluorescence generation efficiency of 0.8 or less when irradiated with said monochromatic light.
Dependencies are inferred from the claim text.