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JPS58182950U - Developer detection device - Google Patents

Developer detection device

Info

Publication number
JPS58182950U
JPS58182950U JP8057882U JP8057882U JPS58182950U JP S58182950 U JPS58182950 U JP S58182950U JP 8057882 U JP8057882 U JP 8057882U JP 8057882 U JP8057882 U JP 8057882U JP S58182950 U JPS58182950 U JP S58182950U
Authority
JP
Japan
Prior art keywords
developer
detection device
detection coil
coil
detecting
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
JP8057882U
Other languages
Japanese (ja)
Inventor
正 三井
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP8057882U priority Critical patent/JPS58182950U/en
Publication of JPS58182950U publication Critical patent/JPS58182950U/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • 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) [Summary] 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]

第１図は本考案に係る現像材検出装置の構成を示す図で
ある。 １・・・・・・容器、２・・・・・・現像材、３・・・
・・・検出コイル、４・・・・・・コア。FIG. 1 is a diagram showing the configuration of a developer detection device according to the present invention. 1...container, 2...developing material, 3...
...Detection coil, 4...Core.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）磁性粉からなる現像材の容器光てんレベルを゛　
　　検出する検出コイルを備え、前記検出コイルは共振
回路を構成してその出力電圧の変化により前記現像剤の
充てんレベルを検出することを特徴とする現像材検出装
置。 ′（２）　　前記検出コイルは、壺型コアにコイルを巻
装し、開放磁路側を絶縁フィルムを介して前記現像材に
対向させたことを特徴とする実用新案登、　　録請求の
範囲第１項記載の現像材検出装置。(1) Container light level of developer material made of magnetic powder
A developer detection device comprising a detection coil for detecting, the detection coil forming a resonant circuit and detecting the filling level of the developer based on a change in its output voltage. '(2) The detection coil is characterized in that the coil is wound around a pot-shaped core, and the open magnetic path side faces the developer material with an insulating film interposed therebetween. Developing material detection device described in Section 1.
JP8057882U 1982-05-31 1982-05-31 Developer detection device Pending JPS58182950U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8057882U JPS58182950U (en) 1982-05-31 1982-05-31 Developer detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8057882U JPS58182950U (en) 1982-05-31 1982-05-31 Developer detection device

Publications (1)

Publication Number Publication Date
JPS58182950U true JPS58182950U (en) 1983-12-06

Family

ID=30089718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8057882U Pending JPS58182950U (en) 1982-05-31 1982-05-31 Developer detection device

Country Status (1)

Country Link
JP (1) JPS58182950U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938730A (en) * 1972-08-24 1974-04-11
JPS5414242A (en) * 1977-07-04 1979-02-02 Hitachi Ltd Measuring method for toner concentration in developer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938730A (en) * 1972-08-24 1974-04-11
JPS5414242A (en) * 1977-07-04 1979-02-02 Hitachi Ltd Measuring method for toner concentration in developer

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