[특허]Developing device for an image forming apparatus

Developing device for an image forming apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G03G-015/08
출원번호	US-0172818 (1993-12-27)
우선권정보	JP-0361016 (1992-12-30)
발명자 / 주소	Takagaki Hiromitsu (Yokohama JPX) Iwata Nobuo (Sagamihara JPX) Suzuki Koji (Yokohama JPX)
출원인 / 주소	Ricoh Company, Ltd. (Tokyo JPX 03)
인용정보	피인용 횟수 : 19 인용 특허 : 0

초록 ▼

In a developing device for developing a latent image formed on an image carrier with a developer, a developer carrier conveys the developer deposited thereon to the image carrier. A developer driving section moves, in a position adjoining the developer carrier and where the developer is at least apt to aggregate, the developer such that the developer is loosened. A developer charging member deposits a predetermined amount of charge on the developer. The developer charging member is located downstream of the developer driving section with respect to the direction of rotation of the developer carrier and upstream of a developing position where the developer carrier faces the image carrier. The device is small size and inexpensive since it does not include a conventional sponge roller or similar developer supply member. In addition, the device prevents the developer from aggregating in the vicinity of the developer carrier and stabilizes the deposition of a charge on the developer carried on the developer carrier.

대표청구항 ▼

A developing device for developing a latent image carrier with a developer supplied to said device, comprising: a developer carrier for conveying the developer deposited thereon to said image carrier; a flexible member facing a surface of said developer carrier and contacting the developer for moving said developer from a position adjoining said developer carrier where said developer is apt to aggregate toward said developer carrier to loosen said developer; a movable member contacting said flexible member for causing said flexible member to move in an oscillating motion and causing the developer to loosen, said developer charged in frictional contact with the developer carrier and electrostatically deposited and conveyed by the developer carrier, wherein said movable member comprises a plurality of projections convex toward said flexible member and extending in a first direction substantially perpendicular to a second direction in which the surface of said developer carrier moves, said movable member being moved in said first direction; movable member driving means for driving said movable member; and developer charging means for depositing a predetermined amount of charge on the developer and located downstream of said flexible member with respect to a direction of rotation of said developer carrier and upstream of a developing position where said developer carrier faces said image carrier.

이 특허를 인용한 특허 (19)

Muramatsu,Satoshi; Iwata,Nobuo; Matsumoto,Junichi; Takeuchi,Nobutaka; Koike,Takayuki, Developer container, developer supplying unit, and image forming apparatus.
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Iwata Naoki,JPX ; Suzuki Koji,JPX, Developing apparatus.
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Koike,Takayuki; Takeuchi,Nobutaka; Iwata,Nobuo; Muramatsu,Satoshi; Matsumoto,Junichi, Developing apparatus for image forming apparatus.
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Yamada, Yoichi; Aruga, Tomohiro; Matsumoto, Daisuke; Nakazawa, Yoshio, Developing apparatus, image forming apparatus, image forming method, and toner.
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Suzuki, Yuji; Shimota, Naohito; Shu, Bing; Suzuki, Koji; Itoh, Akihiro, Developing device having a developer forming a magnet brush.
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Koike,Takayuki; Oyama,Hajime; Takagaki,Hiromitsu; Takeuchi,Nobutaka, Developing device, image forming apparatus and process cartridge including the developing device, and developing method.
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Takeuchi,Nobutaka; Oyama,Hajime; Takagaki,Hiromitsu; Koike,Takayuki, Developing unit and image forming apparatus.
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Koyanagi, Masato; Goto, Gosuke; Ishida, Kazutoshi; Kurachi, Masahiro, Development device, process cartridge, and image forming apparatus.
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Miyawaki, Katsuaki; Matsuda, Hiromichi; Watanabe, Tetsuo; Iwata, Nobuo, Driving device and image forming apparatus.
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Koichi,Yasushi; Aoki,Mitsuo; Shu,Bing; Soga,Setsuo; Suzuki,Koji; Takahashi,Yutaka; Kasai,Tadashi, Image forming apparatus and image forming method.
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Iwata, Nobuo; Matsumoto, Junichi; Ichikawa, Tomoyuki; Katoh, Natsumi, Image forming apparatus having an improved developer conveying system.
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Matsumoto, Junichi; Aoki, Katsuhiro; Hodoshima, Takashi, Image forming method and apparatus using developer carrier pressed into engagement with image carrier.
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Watkins Joseph Albert ; Fredell James Edmund ; Kirk Duane Blair, Making of film scrolls for prewind cameras.
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Matsumoto, Junichi; Kasahara, Nobuo; Iwata, Nobuo; Muramatsu, Satoshi; Ichikawa, Tomoyuki, Method and apparatus for replenishing developer with a flexible powder container.
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Asanae Masumi (Kumagaya JPX) Ochiai Masahisa (Fukaya JPX), Method of developing electrostatic latent image.
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Asanae Masumi,JPX, Method of electrostatically forming visual image.
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Muramatsu,Satoshi; Kasahara,Nobuo; Iwata,Nobuo; Matsumoto,Junichi, Powder discharging device and image forming apparatus using the same.
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Matsumoto, Junichi; Iwata, Nobuo; Ichikawa, Tomoyuki; Katoh, Natsumi, Stress-reduceable transport unit and image forming apparatus using the same.
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Matsumoto,Junichi; Iwata,Nobuo; Muramatsu,Satoshi, Toner replenishing device with timing control of toner replenishing device.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
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메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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연합인증

Developing device for an image forming apparatus 원문보기

초록 ▼

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연구과제 타임라인

이 특허를 인용한 특허 (19)

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Developing device for an image forming apparatus 원문보기

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이 특허를 인용한 특허 (19)

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