JPS57111566A - Detecting circuit for toner density - Google Patents

Detecting circuit for toner density

Info

Publication number
JPS57111566A
JPS57111566A JP18530780A JP18530780A JPS57111566A JP S57111566 A JPS57111566 A JP S57111566A JP 18530780 A JP18530780 A JP 18530780A JP 18530780 A JP18530780 A JP 18530780A JP S57111566 A JPS57111566 A JP S57111566A
Authority
JP
Japan
Prior art keywords
voltage
variation
toner density
vector
detecting circuit
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.)
Granted
Application number
JP18530780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6367653B2 (enrdf_load_stackoverflow
Inventor
Hiroshi Yamada
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.)
Fujitsu Ltd
Toray Industries Inc
Original Assignee
Fujitsu Ltd
Toray Industries Inc
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 Fujitsu Ltd, Toray Industries Inc filed Critical Fujitsu Ltd
Priority to JP18530780A priority Critical patent/JPS57111566A/ja
Publication of JPS57111566A publication Critical patent/JPS57111566A/ja
Publication of JPS6367653B2 publication Critical patent/JPS6367653B2/ja
Granted 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
    • G03G15/06—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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Dry Development In Electrophotography (AREA)
JP18530780A 1980-12-29 1980-12-29 Detecting circuit for toner density Granted JPS57111566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18530780A JPS57111566A (en) 1980-12-29 1980-12-29 Detecting circuit for toner density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18530780A JPS57111566A (en) 1980-12-29 1980-12-29 Detecting circuit for toner density

Publications (2)

Publication Number Publication Date
JPS57111566A true JPS57111566A (en) 1982-07-12
JPS6367653B2 JPS6367653B2 (enrdf_load_stackoverflow) 1988-12-27

Family

ID=16168560

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18530780A Granted JPS57111566A (en) 1980-12-29 1980-12-29 Detecting circuit for toner density

Country Status (1)

Country Link
JP (1) JPS57111566A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5985949A (ja) * 1982-08-27 1984-05-18 エンドレス・ウント・ハウザ−・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング・ウント・コンパニ− 容量形露点センサの汚れを測定する方法および装置
WO1984002202A1 (en) * 1982-11-29 1984-06-07 Hitachi Metals Ltd Apparatus for controlling toner concentration in developer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099552A (enrdf_load_stackoverflow) * 1973-12-29 1975-08-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099552A (enrdf_load_stackoverflow) * 1973-12-29 1975-08-07

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5985949A (ja) * 1982-08-27 1984-05-18 エンドレス・ウント・ハウザ−・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング・ウント・コンパニ− 容量形露点センサの汚れを測定する方法および装置
WO1984002202A1 (en) * 1982-11-29 1984-06-07 Hitachi Metals Ltd Apparatus for controlling toner concentration in developer
US4592645A (en) * 1982-11-29 1986-06-03 Hitachi Metals, Ltd. Apparatus for controlling concentration of toner in developer

Also Published As

Publication number Publication date
JPS6367653B2 (enrdf_load_stackoverflow) 1988-12-27

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