JPS52125339A - Detector for toner density - Google Patents

Detector for toner density

Info

Publication number
JPS52125339A
JPS52125339A JP4135276A JP4135276A JPS52125339A JP S52125339 A JPS52125339 A JP S52125339A JP 4135276 A JP4135276 A JP 4135276A JP 4135276 A JP4135276 A JP 4135276A JP S52125339 A JPS52125339 A JP S52125339A
Authority
JP
Japan
Prior art keywords
toner density
detector
developer
toner
mangetic
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
JP4135276A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5547744B2 (en, 2012
Inventor
Isamu Terajima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4135276A priority Critical patent/JPS52125339A/ja
Priority to US05/783,554 priority patent/US4131081A/en
Priority to DE2716408A priority patent/DE2716408C2/de
Publication of JPS52125339A publication Critical patent/JPS52125339A/ja
Publication of JPS5547744B2 publication Critical patent/JPS5547744B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • 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)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Dry Development In Electrophotography (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
JP4135276A 1976-04-14 1976-04-14 Detector for toner density Granted JPS52125339A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP4135276A JPS52125339A (en) 1976-04-14 1976-04-14 Detector for toner density
US05/783,554 US4131081A (en) 1976-04-14 1977-04-01 Toner concentration detecting apparatus
DE2716408A DE2716408C2 (de) 1976-04-14 1977-04-13 Tonerkonzentrations-Messer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4135276A JPS52125339A (en) 1976-04-14 1976-04-14 Detector for toner density

Publications (2)

Publication Number Publication Date
JPS52125339A true JPS52125339A (en) 1977-10-21
JPS5547744B2 JPS5547744B2 (en, 2012) 1980-12-02

Family

ID=12606106

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4135276A Granted JPS52125339A (en) 1976-04-14 1976-04-14 Detector for toner density

Country Status (3)

Country Link
US (1) US4131081A (en, 2012)
JP (1) JPS52125339A (en, 2012)
DE (1) DE2716408C2 (en, 2012)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54102128A (en) * 1978-01-27 1979-08-11 Kopia Kk Device for developing with developer density measuring instrument
JPS54115246A (en) * 1978-02-28 1979-09-07 Ricoh Co Ltd Toner concentration detector

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53126944A (en) * 1977-04-13 1978-11-06 Hitachi Ltd Developing device using developing powder
DE2726370C2 (de) * 1977-06-10 1981-09-24 Basf Ag, 6700 Ludwigshafen Meßverfahren und Meßeinrichtung zur Bestimmung der Homogenität von Magnetdispersionen
JPS5555368A (en) * 1978-10-18 1980-04-23 Hitachi Ltd Toner concentration detector
JPS6036585B2 (ja) * 1979-11-24 1985-08-21 株式会社日立製作所 現像装置
JPS5675662A (en) * 1979-11-26 1981-06-22 Hitachi Ltd Operating method of electrophotographic apparatus
JPS5726878A (en) * 1980-07-23 1982-02-13 Mita Ind Co Ltd Display device for remaining amount of two component type developer
JPS5726879A (en) * 1980-07-23 1982-02-13 Mita Ind Co Ltd Control device for replenishing of developer
JPS6031408U (ja) * 1983-08-10 1985-03-04 日本電気株式会社 通信機用シエルタ−
JPS6039672A (ja) * 1983-08-12 1985-03-01 Hitachi Ltd トナ−濃度検出装置
DE3561423D1 (en) * 1984-05-16 1988-02-18 Mita Industrial Co Ltd Developing apparatus
US6342273B1 (en) 1994-11-16 2002-01-29 Dsm N.V. Process for coating a substrate with a powder paint composition
JP2010266761A (ja) * 2009-05-15 2010-11-25 Konica Minolta Business Technologies Inc トナー濃度センサおよびトナー濃度制御方法
JP6004799B2 (ja) * 2012-07-10 2016-10-12 キヤノン株式会社 現像剤収容容器及び画像形成装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527651A (en) * 1966-10-20 1970-09-08 Addressograph Multigraph Method of and apparatus for developing electrostatic images
US3802381A (en) * 1968-07-30 1974-04-09 Continental Can Co Apparatus for measuring concentration ratios of a mixture of materials
US3572551A (en) * 1969-03-27 1971-03-30 Rca Corp Apparatus for monitoring and controlling the concentration of toner in a developer mix
CA939732A (en) * 1969-11-11 1974-01-08 Masayoshi Furuichi Apparatus for supplementing toner in electrophotographic machines
US3892672A (en) * 1970-08-21 1975-07-01 Addressograph Multigraph Automatic toner concentrate detector and control device
US3911864A (en) * 1973-01-17 1975-10-14 Xerox Corp Toner preloaded magnetic brush development system
US3835380A (en) * 1973-08-14 1974-09-10 Xerox Corp Electrometer system
US3999687A (en) * 1974-07-17 1976-12-28 Savin Business Machines Corporation Toner concentration detector
US3970036A (en) * 1974-07-17 1976-07-20 Savin Business Machines Corporation Toner concentration detector for dry powder magnetic brush toning system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54102128A (en) * 1978-01-27 1979-08-11 Kopia Kk Device for developing with developer density measuring instrument
JPS54115246A (en) * 1978-02-28 1979-09-07 Ricoh Co Ltd Toner concentration detector

Also Published As

Publication number Publication date
JPS5547744B2 (en, 2012) 1980-12-02
DE2716408C2 (de) 1984-05-10
DE2716408A1 (de) 1977-10-27
US4131081A (en) 1978-12-26

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