JP4408914B2 - 現像装置及び画像形成装置 - Google Patents

現像装置及び画像形成装置 Download PDF

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Publication number
JP4408914B2
JP4408914B2 JP2007129977A JP2007129977A JP4408914B2 JP 4408914 B2 JP4408914 B2 JP 4408914B2 JP 2007129977 A JP2007129977 A JP 2007129977A JP 2007129977 A JP2007129977 A JP 2007129977A JP 4408914 B2 JP4408914 B2 JP 4408914B2
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JP
Japan
Prior art keywords
optical path
toner
arm
shielding member
developing device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2007129977A
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English (en)
Japanese (ja)
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JP2008286895A (ja
JP2008286895A5 (enExample
Inventor
順一 丑久保
Original Assignee
株式会社沖データ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社沖データ filed Critical 株式会社沖データ
Priority to JP2007129977A priority Critical patent/JP4408914B2/ja
Priority to US12/149,818 priority patent/US8032038B2/en
Publication of JP2008286895A publication Critical patent/JP2008286895A/ja
Publication of JP2008286895A5 publication Critical patent/JP2008286895A5/ja
Application granted granted Critical
Publication of JP4408914B2 publication Critical patent/JP4408914B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0856—Detection or control means for the developer level
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0856—Detection or control means for the developer level
    • G03G15/0862—Detection or control means for the developer level the level being measured by optical means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0865—Arrangements for supplying new developer
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/08—Details of powder developing device not concerning the development directly
    • G03G2215/0888—Arrangements for detecting toner level or concentration in the developing device
    • G03G2215/0891—Optical detection
    • G03G2215/0894—Optical detection through a light transmissive window in the developer container wall
    • G03G2215/0897—Cleaning of the light transmissive window

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
JP2007129977A 2007-05-16 2007-05-16 現像装置及び画像形成装置 Expired - Fee Related JP4408914B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007129977A JP4408914B2 (ja) 2007-05-16 2007-05-16 現像装置及び画像形成装置
US12/149,818 US8032038B2 (en) 2007-05-16 2008-05-08 Developing device and image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007129977A JP4408914B2 (ja) 2007-05-16 2007-05-16 現像装置及び画像形成装置

Publications (3)

Publication Number Publication Date
JP2008286895A JP2008286895A (ja) 2008-11-27
JP2008286895A5 JP2008286895A5 (enExample) 2009-01-15
JP4408914B2 true JP4408914B2 (ja) 2010-02-03

Family

ID=40027620

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007129977A Expired - Fee Related JP4408914B2 (ja) 2007-05-16 2007-05-16 現像装置及び画像形成装置

Country Status (2)

Country Link
US (1) US8032038B2 (enExample)
JP (1) JP4408914B2 (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101305980B1 (ko) * 2007-01-26 2013-09-12 삼성전자주식회사 화상형성장치
JP5728970B2 (ja) * 2011-01-26 2015-06-03 株式会社リコー 現像剤量検知装置、現像装置、プロセスユニット及び画像形成装置
JP5769126B2 (ja) * 2011-03-11 2015-08-26 株式会社リコー 画像形成装置
JP5705007B2 (ja) * 2011-04-18 2015-04-22 キヤノン株式会社 現像装置、画像形成装置
JP6108290B2 (ja) * 2013-06-21 2017-04-05 株式会社リコー 現像剤の補給方法、及び補給判定部を備えた画像形成装置
CN105629694A (zh) * 2015-12-29 2016-06-01 徐文欢 一种显影辊和感光鼓的隔离装置
JP6706130B2 (ja) * 2016-04-15 2020-06-03 シャープ株式会社 粉体検知装置及び現像装置
JP6688145B2 (ja) * 2016-04-25 2020-04-28 シャープ株式会社 粉体検出装置及びトナー補給装置
JP7095241B2 (ja) * 2017-08-25 2022-07-05 京セラドキュメントソリューションズ株式会社 現像剤収容容器、及びこれを備えた画像形成装置
TWI712871B (zh) * 2019-07-17 2020-12-11 虹光精密工業股份有限公司 相對轉動清潔反射式碳粉殘量偵測裝置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0132011B1 (ko) * 1994-02-28 1998-10-01 김광호 현상제 보유 레벨 검출 장치
JP2000231524A (ja) * 1999-02-10 2000-08-22 Toshiba Corp ネットワークコンピューティングシステム、及び同システムに於ける通信制御方法、同方法を格納した記憶媒体
US6337956B1 (en) * 1999-02-24 2002-01-08 Brother Kogyo Kabushiki Kaisha Developing device having toner agitation member and cleaning member cleaning light transmission window
JP2003162138A (ja) 2001-11-27 2003-06-06 Canon Inc 現像装置、プロセスカートリッジおよび画像形成装置

Also Published As

Publication number Publication date
JP2008286895A (ja) 2008-11-27
US20080286005A1 (en) 2008-11-20
US8032038B2 (en) 2011-10-04

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