Minolta Camera Kabushiki Kaisha

Panasonic Intellectual Property Management Co., Ltd.

Masanori Fujiwara

Izumi Osawa

Kenji Masaki

Isao Doi

Hideo Hotomi

Shuji Iino

Yumiko Takedomi

Syuji Iino

Hiroshi Murasaki

Noboru Saeki

Fumiko Uchino

Masahiro Setoyama

Kazuhiko Obata

Haruo Hirotomi

Akimichi Mori

Naoki Hatada

A toner supplying device for supplying toner to a developing device in an electrophotographic image forming apparatus comprises a toner hopper for containing and feeding new toner, a recycle device for introducing toner from a cleaner which collects residual toner on an electrostatic latent image carrying member to an outlet of the hopper or the vicinity thereof, a toner agitating chamber opposed to the outlet of the hopper and an outlet of the recycle device, a toner agitating member disposed in the toner agitating chamber, and a toner feeder for feeding the toner from the toner agitating chamber to the developing device.

Toner supplying device

The present invention relates to a developer such as a toner and/or carrier for use in electrophotographic developing processes, and more specifically relates to a developer containing halogenated amorphous carbon particles prepared by plasma-polymerization, wherein the particles may take two forms, i.e., one with seed particles which is coated with the plasma-polymerized film containing at least carbon and halogen or the other without the seed particles which is formed by plasma-reacting carbon and halogen.

Developer containing halogenated amorphous carbon particles prepared by

The disclosure discloses a photosensitive member comprising an electrically conductive substrate, an organic photoconductive layer comprising an organic material as a matrix, and an overcoat layer comprising an amorphous carbon as a matrix and formed on said organic photoconductive layer. Said overcoat layer comprises a first overcoat layer containing fluorine atoms in an amount of about 5 atomic % or more and a second overcoat layer formed on said first overcoat layer and containing fluorine atoms in an amount of less than about 5 atomic %. Said overcoat layer has a thickness of about 0.01 to about 4.0 microns and said second overcoat layer has a thickness of about 10 to about 400 angstroms. The disclosure also discloses a process for manufacturing the above-mentioned photosensitive member.

Photosensitive member having an overcoat layer and process for

A photosensitive member of the present invention comprising an electrically conductive substrate, a photosensitive layer comprising an organic material and a hydrogen-containing amorphous carbon overcoat layer containing halogen atoms and at least one or more elements selected from the group consisting of chalcogen and elements in Group III, IV and V of the periodic table. The overcoat layer contains hydrogen in an amount of about 5 to about 50 atomic % based on the combined amount of hydrogen atoms and carbon atoms.

Photosensitive member having an overcoat lyer and process for

A photosensitive member of the present invention comprises an electrically conductive substrate, a photoconductive layer and an overcoat layer. The photoconductive layer comprises selenium-arsenic alloy layer, or selenium layer and selenium-tellurium layer formed in this order. The overcoat layer comprises amorphous carbon containing hydrogen and contains at least one or more elements selected from the group consisting of chalcogen and elements in Group III and IV of the periodic table. The photosensitive member of this construction is harmless and excellent in electrophotographic characteristics inclusive of durability and surface hardness.

Photosensitive member having an amorphous carbon overcoat layer

A Photosensitive member of the present invention comprises an electrically conductive substrate, a photoconductive layer and an overcoat layer. The photoconductive layer comprises selenium-arsenic alloy layer, or selenium layer and selenium-tellurium layer formed in this order. The overcoat layer comprises amorphous carbon containing hydrogen and contains elements in Group V of the periodic table. The overcoat layer may contain at least one or more elements selected from the group consisting of oxygen, nitrogen, chalcogen, halogen and elements in Group III and IV of the periodic table in addition to elements in Group V of the periodic table. The photosensitive member of this construction is harmless and excellent in electrophotographic characteristics inclusive of durability and surface hardness.

A photosensitive member of the present invention comprises an electrically conductive substrate, a photosensitive layer comprising an organic material and a hydrogen-containing amorphous carbon overcoat layer containing one or more elements selected from the group consisting of chalcogen and elements in Group III, IV and V of the periodic table. The overcoat layer contains hydrogen in an amount of about 30 to about 60 atomic % based on the combined amount of hydrogen atoms and carbon atoms.

A photosensitive member comprising an electrically conductive substrate, a charge generating layer and a charge transporting layer comprising amorphous carbon which contains hydrogen. The charge transporting layer contains about 0.1 to about 10 atomic % of chalcogen atoms or transition metal elements based on all the constituent atoms therein. The photosensitive member of this construction is excellent in electrophotographic characteristics inclusive of charge transportability and charging ability.

Photosensitive member comprising charge generating layer and charge

A photosensitive member of the present invention comprises an electrically conductive substrate, a photoconductive layer and an overcoat layer. The photoconductive layer comprises selenium-arsenic alloy layer, or selenium layer and selenium-tellurium layer formed in this order. The overcoat layer comprises amorphous carbon containing hydrogen and contains a kind of atom selected from the group consisting of halogen, oxygen and nitrogen. The photosensitive member of this construction is harmless and excellent in electrophotographic characteristics inclusive of durability and surface hardness.

Photosensitive member having an overcoat layer

A photosensitive member of the present invention comprises an electrically conductive substrate, an evaporated layer of phthalocyanine compounds as a charge generating layer and a hydrogen-containing amorphous carbon layer as a charge transporting layer. The charge transporting layer contains hydrogen in an amount of about 30 to about 60 atomic % based on the combined amount of hydrogen atoms and carbon atoms.

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Osaka, Japan

Masanori Fujiwara