JPS6076363U - developing device - Google Patents

developing device

Info

Publication number
JPS6076363U
JPS6076363U JP16859183U JP16859183U JPS6076363U JP S6076363 U JPS6076363 U JP S6076363U JP 16859183 U JP16859183 U JP 16859183U JP 16859183 U JP16859183 U JP 16859183U JP S6076363 U JPS6076363 U JP S6076363U
Authority
JP
Japan
Prior art keywords
developing
developer
developing device
density measuring
image carrier
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
JP16859183U
Other languages
Japanese (ja)
Inventor
向井　秀雄
浅田　智幸
宏 斉藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP16859183U priority Critical patent/JPS6076363U/en
Publication of JPS6076363U publication Critical patent/JPS6076363U/en
Pending legal-status Critical Current

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Landscapes

  • Dry Development In Electrophotography (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面はこの考案の一実施例を示すもので、第１図は電子
複写機の構成を示す断面図、第２図は全体の構成を概略
的に示す断面図、第３図は比較用磁気回路の構成を示す
図、第４図は濃度測定装置の構成を示す図である。 １０・・・感光体ドラム（像担持体）、１２・・・現像
装置、３１・・・筐体、３２・・・現像剤、３３・・・
現像ローラ、３４・・・ドクタブレード、３５・・・攪
拌ローラ、４１・・・測定用磁気回路、４２・・・測定
部コア、４３・・・比較用磁気回路、４５・・・比較用
コア、５１〜５４・・・コイル。The drawings show one embodiment of this invention; FIG. 1 is a sectional view showing the structure of an electronic copying machine, FIG. 2 is a sectional view schematically showing the overall structure, and FIG. 3 is a magnetic circuit for comparison. FIG. 4 is a diagram showing the configuration of the concentration measuring device. DESCRIPTION OF SYMBOLS 10... Photosensitive drum (image carrier), 12... Developing device, 31... Housing, 32... Developer, 33...
Developing roller, 34... Doctor blade, 35... Stirring roller, 41... Magnetic circuit for measurement, 42... Measuring section core, 43... Magnetic circuit for comparison, 45... Core for comparison , 51-54... Coil.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 現像剤の濃度変化を透磁率の変化として測定す゛る濃度
測定手段と、この濃度測定手段による測定結果に応じて
現像剤を適性濃度に維持する手段と、適性濃度の現像剤
を像担持体へ搬送して像担持体上の像を現像する現像手
段とを具備する現像装置において、前記濃度測定手段が
前記現像手段の内部に設けられることを特徴とする現像
装置。A density measuring means for measuring a change in developer concentration as a change in magnetic permeability, a means for maintaining the developer at an appropriate concentration according to the measurement result by the density measuring means, and a means for transporting the developer at an appropriate concentration to an image carrier. 1. A developing device comprising: a developing means for developing an image on an image carrier, wherein the density measuring means is provided inside the developing means.
JP16859183U 1983-10-31 1983-10-31 developing device Pending JPS6076363U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16859183U JPS6076363U (en) 1983-10-31 1983-10-31 developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16859183U JPS6076363U (en) 1983-10-31 1983-10-31 developing device

Publications (1)

Publication Number Publication Date
JPS6076363U true JPS6076363U (en) 1985-05-28

Family

ID=30368528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16859183U Pending JPS6076363U (en) 1983-10-31 1983-10-31 developing device

Country Status (1)

Country Link
JP (1) JPS6076363U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007219455A (en) * 2006-02-20 2007-08-30 Ricoh Co Ltd Developer concentration detecting device, developing device, and image forming apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007219455A (en) * 2006-02-20 2007-08-30 Ricoh Co Ltd Developer concentration detecting device, developing device, and image forming apparatus

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