JPH02107166U - - Google Patents

Info

Publication number
JPH02107166U
JPH02107166U JP1989016597U JP1659789U JPH02107166U JP H02107166 U JPH02107166 U JP H02107166U JP 1989016597 U JP1989016597 U JP 1989016597U JP 1659789 U JP1659789 U JP 1659789U JP H02107166 U JPH02107166 U JP H02107166U
Authority
JP
Japan
Prior art keywords
amount
sensor output
developing unit
developing
replenishment
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.)
Pending
Application number
JP1989016597U
Other languages
English (en)
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 filed Critical
Priority to JP1989016597U priority Critical patent/JPH02107166U/ja
Priority to US07/475,344 priority patent/US5070368A/en
Priority to EP19900102333 priority patent/EP0383160A3/en
Publication of JPH02107166U publication Critical patent/JPH02107166U/ja
Priority to US07/681,587 priority patent/US5138386A/en
Pending legal-status Critical Current

Links

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
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0105—Details of unit
    • G03G15/0126—Details of unit using a solid developer
    • 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
    • G03G15/0849—Detection or control means for the developer concentration
    • 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
    • G03G15/0849—Detection or control means for the developer concentration
    • G03G15/0853—Detection or control means for the developer concentration the concentration being measured by magnetic 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
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0856—Detection or control means for the developer level

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Color Electrophotography (AREA)

Description

【図面の簡単な説明】
第１図はこの発明の構成を示す図、第２図はこ
の発明の現像装置を構成する一つの現像ユニツト
の断面図、第３図は同現像装置の制御部のブロツ
ク図、第４図は同現像装置の制御部の処理手順を
示すフローチヤートである。 ２……表示回路、３……現像ユニツト、６……
トナー、９……レベルセンサ、１０……透磁率セ
ンサ、Ｌ１〜Ｌ４……表示ランプ。

Claims (1)

  1. 【実用新案登録請求の範囲】 トナー収納量を検出するセンサをそれぞれ個別
    に設けた現像ユニツトを複数備えた現像装置にお
    いて、 一つの現像ユニツトのセンサ出力が補給必要量
    以下になつた際に他の現像ユニツトのセンサ出力
    が補給可能量以下であるか否かを判別する判別手
    段と、その判別結果に基づいてセンサ出力が補給
    必要量以下の現像ユニツトと補給可能量以下の現
    像ユニツトとに対してトナー補給を促す補給表示
    手段と、を設けたことを特徴とする現像装置。
JP1989016597U 1989-02-15 1989-02-15 Pending JPH02107166U (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1989016597U JPH02107166U (ja) 1989-02-15 1989-02-15
US07/475,344 US5070368A (en) 1989-02-15 1990-02-05 Developing apparatus
EP19900102333 EP0383160A3 (en) 1989-02-15 1990-02-07 Developing apparatus
US07/681,587 US5138386A (en) 1989-02-15 1991-04-08 Developing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989016597U JPH02107166U (ja) 1989-02-15 1989-02-15

Publications (1)

Publication Number Publication Date
JPH02107166U true JPH02107166U (ja) 1990-08-27

Family

ID=11920700

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989016597U Pending JPH02107166U (ja) 1989-02-15 1989-02-15

Country Status (3)

Country Link
US (2) US5070368A (ja)
EP (1) EP0383160A3 (ja)
JP (1) JPH02107166U (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2827137B2 (ja) * 1989-12-05 1998-11-18 株式会社リコー クリーナ・トナー・マガジン及び電子写真式記録装置
JP2860918B2 (ja) * 1991-01-23 1999-02-24 株式会社リコー クリーナ・トナー・マガジン
JP3073080B2 (ja) * 1991-11-29 2000-08-07 京セラミタ株式会社 画像形成装置
US5142325A (en) * 1991-03-09 1992-08-25 Mita Industrial Co., Ltd. Image forming apparatus
US5640644A (en) * 1994-06-07 1997-06-17 Konica Corporation Image forming apparatus having toner replenishment device
JP3417240B2 (ja) * 1997-01-23 2003-06-16 富士ゼロックス株式会社 電子写真装置
US6181886B1 (en) 1999-12-23 2001-01-30 David E. Hockey Toner replenishment and collection apparatus and method
US6347199B1 (en) * 2000-11-06 2002-02-12 Toshiba Tec Kabushiki Kaisha Toner supply method in picture image forming system and picture image forming system
JP3771880B2 (ja) * 2002-08-12 2006-04-26 株式会社沖データ トナー回収装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS544619B2 (ja) * 1973-06-14 1979-03-08
US3951309A (en) * 1973-07-11 1976-04-20 Canon Kabushiki Kaisha Device for detecting the quantity of remaining developer
JPS5872174A (ja) * 1981-10-23 1983-04-30 Minolta Camera Co Ltd 複写機
US4647185A (en) * 1981-10-23 1987-03-03 Canon Kabushiki Kaisha Developer detecting device
JPS6060054A (ja) * 1983-09-09 1985-04-06 M K Seikou Kk 洗車機
JPS6057869A (ja) * 1983-09-10 1985-04-03 Ricoh Co Ltd カラ−電子写真用トナ−濃度測定装置
JPS60229048A (ja) * 1984-04-27 1985-11-14 Toshiba Corp 像形成装置
JPS61107264A (ja) * 1984-10-30 1986-05-26 Canon Inc カラ−画像形成装置
JPS61151579A (ja) * 1984-12-25 1986-07-10 Hitachi Metals Ltd 現像装置
JPS61176962A (ja) * 1985-01-31 1986-08-08 Konishiroku Photo Ind Co Ltd 画像形成装置
US4897690A (en) * 1987-09-30 1990-01-30 Minolta Camera Kabushiki Kaisha Image forming apparatus
JPH01142765A (ja) * 1987-11-30 1989-06-05 Toshiba Corp 画像形成送置
JP2882529B2 (ja) * 1988-12-05 1999-04-12 株式会社リコー 画像形成装置

Also Published As

Publication number Publication date
US5070368A (en) 1991-12-03
US5138386A (en) 1992-08-11
EP0383160A3 (en) 1991-05-29
EP0383160A2 (en) 1990-08-22

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