JPS6367653B2 - - Google Patents

Info

Publication number
JPS6367653B2
JPS6367653B2 JP55185307A JP18530780A JPS6367653B2 JP S6367653 B2 JPS6367653 B2 JP S6367653B2 JP 55185307 A JP55185307 A JP 55185307A JP 18530780 A JP18530780 A JP 18530780A JP S6367653 B2 JPS6367653 B2 JP S6367653B2
Authority
JP
Japan
Prior art keywords
phase difference
voltage
change
toner
phase
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
Application number
JP55185307A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57111566A (en
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
Original Assignee
Fujitsu Ltd
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 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 JPS57111566A (en) 1982-07-12
JPS6367653B2 true JPS6367653B2 (US07709020-20100504-C00041.png) 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 (US07709020-20100504-C00041.png)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3231995C2 (de) * 1982-08-27 1985-06-27 Endress U. Hauser Gmbh U. Co, 7867 Maulburg Verfahren und Anordnung zum Messen der Verschmutzung eines kapazitiven Taupunktsensors
DE3379182D1 (en) * 1982-11-29 1989-03-16 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 (US07709020-20100504-C00041.png) * 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 (US07709020-20100504-C00041.png) * 1973-12-29 1975-08-07

Also Published As

Publication number Publication date
JPS57111566A (en) 1982-07-12

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