GB1358448A - Toner dispenser - Google Patents

Toner dispenser

Info

Publication number
GB1358448A
GB1358448A GB3869971A GB3869971A GB1358448A GB 1358448 A GB1358448 A GB 1358448A GB 3869971 A GB3869971 A GB 3869971A GB 3869971 A GB3869971 A GB 3869971A GB 1358448 A GB1358448 A GB 1358448A
Authority
GB
United Kingdom
Prior art keywords
roller
capacitor
aug
photo
cell
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
GB3869971A
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.)
Xerox Corp
Original Assignee
Xerox 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 Xerox Corp filed Critical Xerox Corp
Publication of GB1358448A publication Critical patent/GB1358448A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0805Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a brush
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0849Detection or control means for the developer concentration
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0887Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity
    • G03G15/0889Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity for agitation or stirring
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/50Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5033Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
    • G03G15/5041Detecting a toner image, e.g. density, toner coverage, using a test patch

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)

Abstract

1358448 Electro-photographic developing apparatus XEROX CORP 18 Aug 1971 [19 Aug 1970] 38699/71 Heading G2H Toner is dispensed from a hopper 32 by a metering roller 34. As shown, the replenished developer is fed by an auger 52 to an aluminium roller 16 which supplies a fur or magnetic brush 12. In Fig. 2, a photo-cell P1 measures the density of the developed image and charges a capacitor 72 accordingly. When the charge reaches a predetermined value a threshold device 80 energizes a relay 86 to rotate the roller 34. Each time the roller 34 rotates it closes a switch 74 to discharge capacitor 72. In Fig. 3 (not shown) photo-cell P1 is dispersed with and an electrostatic character printer sends a pulse to capacitor 72 each time a character is printed.
GB3869971A 1970-08-19 1971-08-18 Toner dispenser Expired GB1358448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6505270A 1970-08-19 1970-08-19

Publications (1)

Publication Number Publication Date
GB1358448A true GB1358448A (en) 1974-07-03

Family

ID=22060032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3869971A Expired GB1358448A (en) 1970-08-19 1971-08-18 Toner dispenser

Country Status (7)

Country Link
US (1) US3659556A (en)
BE (1) BE771423A (en)
CA (1) CA936681A (en)
DE (1) DE2141677A1 (en)
FR (1) FR2102375B1 (en)
GB (1) GB1358448A (en)
NL (1) NL7111221A (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3764208A (en) * 1970-12-29 1973-10-09 Canon Kk Developing device for use in electrophotographic copying machines
DE2226924A1 (en) * 1972-06-02 1973-12-20 Kalle Ag METHOD AND DEVICE FOR MEASURING AND CONTROLLING THE TONER CONCENTRATION IN ELECTROPHOTOGRAPHIC REPRODUCTION MACHINES
NL7210357A (en) * 1971-08-06 1973-02-08
DE2410188B2 (en) * 1974-03-04 1979-04-19 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method and apparatus for developing electrostatic images
US4108658A (en) * 1974-03-11 1978-08-22 Oce-Van Der Grinten N.V. Process for developing electrostatic latent images
JPS50155235A (en) * 1974-06-04 1975-12-15
US3985098A (en) * 1975-01-20 1976-10-12 Itek Corporation Toner dispensing apparatus
US4075977A (en) * 1977-01-12 1978-02-28 Eastman Kodak Company Mixing hopper for magnetic brush developing apparatus
DE2752865A1 (en) * 1977-11-26 1979-05-31 Hauni Werke Koerber & Co Kg DEVICE FOR APPLYING PAINT POWDER, PREFERABLY BRONZE POWDER, ON A RUNNING STRIP OF CIGARETTE PAPER
US4260073A (en) * 1978-08-23 1981-04-07 International Business Machines Corporation Virgin toner and used toner supply apparatus and method
US4348100A (en) * 1980-09-02 1982-09-07 Xerox Corporation Control for xerographic system
CA1217045A (en) * 1981-07-23 1987-01-27 Raymond E. Poehlein Particle dispensing system
US4682874A (en) * 1981-11-19 1987-07-28 Xerox Corporation Particle level indicator
US4397546A (en) * 1982-01-18 1983-08-09 Xerox Corporation Particle dispensing system
JPS59188630A (en) * 1983-04-12 1984-10-26 Mita Ind Co Ltd Electrostatic copying machine
US4537495A (en) * 1983-07-01 1985-08-27 Zerox Corporation Multispeed development system
US4553033A (en) * 1983-08-24 1985-11-12 Xerox Corporation Infrared reflectance densitometer
US4711551A (en) * 1985-09-13 1987-12-08 Sanyo Electric Co., Ltd. Developing apparatus
US4926217A (en) * 1986-08-11 1990-05-15 Xerox Corporation Particle transport
US4847659A (en) * 1987-05-21 1989-07-11 Eastman Kodak Company Apparatus for controlling toner replenishment in electrostatographic printer
JPH04239661A (en) * 1991-01-24 1992-08-27 Brother Ind Ltd Image forming device
DE10107647A1 (en) * 2001-02-19 2002-09-19 Oce Printing Systems Gmbh Device and method for replacing aged developer
FR3120720B1 (en) 2021-03-11 2023-02-10 Psa Automobiles Sa Motor vehicle displaying on a screen of said vehicle, graphic interfaces for driving assistance

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103445A (en) * 1963-09-10 Method of developing an electrostatic
US3273016A (en) * 1964-04-23 1966-09-13 Oxy Dry Sprayer Corp Powder sprayers
US3527651A (en) * 1966-10-20 1970-09-08 Addressograph Multigraph Method of and apparatus for developing electrostatic images
US3529546A (en) * 1967-07-12 1970-09-22 Ibm Printing substance control
US3409901A (en) * 1967-07-12 1968-11-05 Ibm Automatic toner concentration control for use with crt input

Also Published As

Publication number Publication date
US3659556A (en) 1972-05-02
FR2102375B1 (en) 1973-08-10
FR2102375A1 (en) 1972-04-07
NL7111221A (en) 1972-02-22
CA936681A (en) 1973-11-13
DE2141677A1 (en) 1972-02-24
BE771423A (en) 1972-02-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee