Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
AssigneeCanon Kabushiki Kaisha
InventorsHirofumi Kumoi, Masataka Kawahara, Masato Tanaka
Life of this patent
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Abstract
An electrophotographic photosensitive member includes a support member, a charge generating layer, and a charge transport layer in that order. The charge generating layer contains a gallium phthalocyanine crystal containing therein at least one amide compound selected from the group consisting of N-methylformamide, N-propylformamide, and N-vinylformamide. The charge transport layer contains fluorine-containing resin particles and a fluorine-containing copolymer.
Claims15
An electrophotographic photosensitive member comprising in the following order:
- a support member;
- a charge generating layer containing a gallium phthalocyanine crystal containing therein at least one amide compound selected from the group consisting of N-methylformamide, N-propylformamide, and N-vinylformamide;
- and
- a charge transport layer containing fluorine-containing resin particles and a fluorine-containing copolymer.
A method for manufacturing an electrophotographic photosensitive member including a support member, a charge generating layer, and a charge transport layer in that order, the method comprising:
- forming the charge generating layer by forming a coating film of a coating liquid containing a gallium phthalocyanine crystal containing therein at least one amide compound selected from the group consisting of N-methylformamide, N-propylformamide, and N-vinylformamide, and drying the coating film;
- and
- forming a charge transport layer by forming a coating film of a coating liquid containing fluorine-containing resin particles dispersed therein by a fluorine-containing copolymer, and drying the coating film.
A process cartridge capable of being removably attached to an electrophotographic apparatus, the process cartridge comprising:
- an electrophotographic photosensitive member including a support member, a charge generating layer, and a charge transport layer in that order;
- and
- at least one device selected from the group consisting of a charging device, a developing device, and a cleaning device,
- wherein electrophotographic photosensitive member and the at least one device are held in one body,
- wherein the charge generating layer contains a gallium phthalocyanine crystal containing therein at least one amide compound selected from the group consisting of N-methylformamide, N-propylformamide, and N-vinylformamide, and
- wherein the charge transport layer contains fluorine-containing resin particles and a fluorine-containing copolymer.
An electrophotographic apparatus comprising:
- an electrophotographic photosensitive member including a support member, a charge generating layer, and a charge transport layer in that order;
- a charging device;
- an exposure device;
- a developing device;
- and
- a transfer device,
- wherein the charge generating layer contains a gallium phthalocyanine crystal containing therein at least one amide compound selected from the group consisting of N-methylformamide, N-propylformamide, and N-vinylformamide, and
- wherein the charge transport layer contains fluorine-containing resin particles and a fluorine-containing copolymer.
Dependencies are inferred from the claim text.