JPS5619637B2 - - Google Patents

Info

Publication number
JPS5619637B2
JPS5619637B2 JP6933573A JP6933573A JPS5619637B2 JP S5619637 B2 JPS5619637 B2 JP S5619637B2 JP 6933573 A JP6933573 A JP 6933573A JP 6933573 A JP6933573 A JP 6933573A JP S5619637 B2 JPS5619637 B2 JP S5619637B2
Authority
JP
Japan
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
JP6933573A
Other languages
Japanese (ja)
Other versions
JPS5019458A (US07579456-20090825-P00002.png
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 filed Critical
Priority to JP6933573A priority Critical patent/JPS5619637B2/ja
Priority to US05/478,451 priority patent/US3932034A/en
Priority to DE2429702A priority patent/DE2429702C3/de
Priority to AU70272/74A priority patent/AU489657B2/en
Publication of JPS5019458A publication Critical patent/JPS5019458A/ja
Publication of JPS5619637B2 publication Critical patent/JPS5619637B2/ja
Expired 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
    • G03G15/0851—Detection or control means for the developer concentration the concentration being measured by electrical means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Control Or Security For Electrophotography (AREA)
JP6933573A 1973-06-20 1973-06-20 Expired JPS5619637B2 (US07579456-20090825-P00002.png)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP6933573A JPS5619637B2 (US07579456-20090825-P00002.png) 1973-06-20 1973-06-20
US05/478,451 US3932034A (en) 1973-06-20 1974-06-11 Developer concentration detecting and replenishment device
DE2429702A DE2429702C3 (de) 1973-06-20 1974-06-20 Entwicklerdichte-Einstellvorrichtung
AU70272/74A AU489657B2 (en) 1974-06-20 Developer density adjusting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6933573A JPS5619637B2 (US07579456-20090825-P00002.png) 1973-06-20 1973-06-20

Publications (2)

Publication Number Publication Date
JPS5019458A JPS5019458A (US07579456-20090825-P00002.png) 1975-02-28
JPS5619637B2 true JPS5619637B2 (US07579456-20090825-P00002.png) 1981-05-08

Family

ID=13399564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6933573A Expired JPS5619637B2 (US07579456-20090825-P00002.png) 1973-06-20 1973-06-20

Country Status (3)

Country Link
US (1) US3932034A (US07579456-20090825-P00002.png)
JP (1) JPS5619637B2 (US07579456-20090825-P00002.png)
DE (1) DE2429702C3 (US07579456-20090825-P00002.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11378207B2 (en) 2019-11-22 2022-07-05 Trinity Bay Equipment Holdings, LLC Swaged pipe fitting systems and methods

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4200665A (en) * 1974-06-18 1980-04-29 Koichi Suzuki Method for controlling the toner concentration of a developer used in a dry type developing system
US4112867A (en) * 1974-06-18 1978-09-12 Ricoh Company, Ltd. Apparatus for controlling the toner concentration of a developer used in a dry type developing system
JPS613004Y2 (US07579456-20090825-P00002.png) * 1975-01-13 1986-01-30
JPS5187046A (en) * 1975-01-28 1976-07-30 Ricoh Kk Serufuootobaiasushikidenshishashingenzosochi
JPS5545392Y2 (US07579456-20090825-P00002.png) * 1975-10-07 1980-10-24
US4142165A (en) * 1976-03-25 1979-02-27 Ricoh Company, Ltd. Electrostatic copying machine comprising improved magnetic brush developing-cleaning unit
US4076857A (en) * 1976-06-28 1978-02-28 Eastman Kodak Company Process for developing electrographic images by causing electrical breakdown in the developer
JPS5349437A (en) * 1976-10-16 1978-05-04 Hitachi Ltd Toner density detector
US4064834A (en) * 1976-11-19 1977-12-27 A. B. Dick Company Apparatus for sensing the concentration of toner in a developer mix
US4108545A (en) * 1976-12-20 1978-08-22 Pitney-Bowes, Inc. Developer supply control system in a copier
US4347299A (en) * 1978-08-16 1982-08-31 Minolta Camera Kabushiki Kaisha Method of controlling toner concentration for electrophotographic copying apparatus
US4385823A (en) * 1979-04-16 1983-05-31 Eastman Kodak Company Method and means for improving maximum density and tonal range of electrographic images
USRE32259E (en) * 1979-04-16 1986-10-07 Eastman Kodak Company Method and means for improving maximum density and tonal range of electrographic images
US4310238A (en) * 1979-09-08 1982-01-12 Ricoh Company, Ltd. Electrostatic copying apparatus
US4282827A (en) * 1979-09-12 1981-08-11 Xerox Corporation Development system
JPS6036585B2 (ja) * 1979-11-24 1985-08-21 株式会社日立製作所 現像装置
US4343548A (en) * 1980-05-19 1982-08-10 Xerox Corporation Control system for regulating the concentration of toner particles within a developer mixture
US4468112A (en) * 1981-02-18 1984-08-28 Canon Kabushiki Kaisha Developer concentration controlling device
US4357901A (en) * 1981-09-03 1982-11-09 Bunnington Corporation Method and system for magnetically sensing and controlling toner concentration and optical density of copies in electrostatic reproduction
JPS58169161A (ja) * 1982-03-31 1983-10-05 Mita Ind Co Ltd 静電潜像現像装置
US4611900A (en) * 1984-06-01 1986-09-16 Xerox Corporation Apparatus for sensing the presence of toner particles
JPS6172270A (ja) * 1984-09-17 1986-04-14 Sanyo Electric Co Ltd 静電記録装置
US4614165A (en) * 1985-11-25 1986-09-30 Xerox Corporation Extended life development system
JPS62229170A (ja) * 1986-03-29 1987-10-07 Toshiba Corp 画像形成装置
US4786924A (en) * 1987-03-20 1988-11-22 Xerox Corporation Hybrid control system for a copier
JPS644780A (en) * 1987-06-29 1989-01-09 Canon Kk Developing device
US4972230A (en) * 1989-10-31 1990-11-20 Xerox Corporation Toner usage detector based on current biasing mixing means
JP2931684B2 (ja) * 1991-03-12 1999-08-09 三田工業 株式会社 画像形成装置
US6580882B2 (en) * 2001-10-04 2003-06-17 Xerox Corporation Low cost trim-gap-conductivity TC sensor
US8358942B2 (en) 2010-07-30 2013-01-22 Eastman Kodak Company Electrophotographic developer toner concentration measurement
US20120027430A1 (en) * 2010-07-30 2012-02-02 Brown Kenneth J Measuring developer density in an electrophotographic system
US20120027432A1 (en) * 2010-07-30 2012-02-02 Brown Kenneth J Electrophotographic developer flow rate measurement
US8380091B2 (en) * 2010-07-30 2013-02-19 Eastman Kodak Company Resonant-frequency measurement of electrophotographic developer density
US9304465B2 (en) * 2013-05-24 2016-04-05 Hewlett-Packard Development Company, L.P. Determining the conductivity of a liquid

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3094049A (en) * 1961-02-03 1963-06-18 Xerox Corp Xerographic developer measuring apparatus
US3376853A (en) * 1966-04-29 1968-04-09 Xerox Corp Electrostatic toner control
US3376854A (en) * 1966-06-01 1968-04-09 Xerox Corp Automatic toner dispensing control
US3527651A (en) * 1966-10-20 1970-09-08 Addressograph Multigraph Method of and apparatus for developing electrostatic images
US3399652A (en) * 1967-06-14 1968-09-03 Addressograph Multigraph Automatic toner concentrate detector
US3572551A (en) * 1969-03-27 1971-03-30 Rca Corp Apparatus for monitoring and controlling the concentration of toner in a developer mix
BE757197A (fr) * 1969-10-09 1971-03-16 Rca Corp Dispositif pour controler et regler la concentration de particules de poudre dans un melange de poudre et de particules magnetiques
US3707134A (en) * 1970-08-21 1972-12-26 Addressograph Multigraph Automatic toner concentrate detector and control device
US3719165A (en) * 1971-09-03 1973-03-06 Eastman Kodak Co Tuner concentration control apparatus
US3821938A (en) * 1971-12-17 1974-07-02 Ibm Toner usage sensing system
US3779204A (en) * 1972-08-14 1973-12-18 Eastman Kodak Co Toner concentration and auto bias control apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11378207B2 (en) 2019-11-22 2022-07-05 Trinity Bay Equipment Holdings, LLC Swaged pipe fitting systems and methods

Also Published As

Publication number Publication date
DE2429702A1 (de) 1975-01-09
DE2429702C3 (de) 1980-04-30
JPS5019458A (US07579456-20090825-P00002.png) 1975-02-28
DE2429702B2 (de) 1979-08-16
AU7027274A (en) 1976-01-08
US3932034A (en) 1976-01-13

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