CA1099094A - Device for the development of and electrostatic charge image - Google Patents

Device for the development of and electrostatic charge image

Info

Publication number
CA1099094A
CA1099094A CA276,848A CA276848A CA1099094A CA 1099094 A CA1099094 A CA 1099094A CA 276848 A CA276848 A CA 276848A CA 1099094 A CA1099094 A CA 1099094A
Authority
CA
Canada
Prior art keywords
support
trough
powder
developing powder
cylinder
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
CA276,848A
Other languages
English (en)
French (fr)
Inventor
Piet M. J. Extra
Lambertus R.J.M. Smeets
Adrianus W. M. Van Bavel
Jacobus J. Van Lieshout
Albert T. Deckers
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.)
Canon Production Printing Holding BV
Original Assignee
Oce Van der Grinten NV
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 Oce Van der Grinten NV filed Critical Oce Van der Grinten NV
Application granted granted Critical
Publication of CA1099094A publication Critical patent/CA1099094A/en
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
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • 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
    • G03G15/0855—Detection or control means for the developer concentration the concentration being measured by optical means
    • 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
    • G03G15/0887—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity
    • G03G15/0891—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity for conveying or circulating developer, e.g. augers
    • G03G15/0893—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity for conveying or circulating developer, e.g. augers in a closed loop within the sump of the developing device
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/08—Details of powder developing device not concerning the development directly
    • G03G2215/0802—Arrangements for agitating or circulating developer material
    • G03G2215/0816—Agitator type
    • G03G2215/0827—Augers
    • G03G2215/083—Augers with two opposed pitches on one shaft

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
CA276,848A 1976-04-26 1977-04-25 Device for the development of and electrostatic charge image Expired CA1099094A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7604400A NL7604400A (nl) 1976-04-26 1976-04-26 Inrichting voor het ontwikkelen van een elektro- statisch ladingsbeeld.
NL7604400 1976-04-26

Publications (1)

Publication Number Publication Date
CA1099094A true CA1099094A (en) 1981-04-14

Family

ID=19826068

Family Applications (1)

Application Number Title Priority Date Filing Date
CA276,848A Expired CA1099094A (en) 1976-04-26 1977-04-25 Device for the development of and electrostatic charge image

Country Status (7)

Country Link
US (1) US4112870A (ref)
JP (1) JPS52130644A (ref)
CA (1) CA1099094A (ref)
DE (1) DE2718319C2 (ref)
FR (1) FR2349864A1 (ref)
GB (1) GB1542019A (ref)
NL (1) NL7604400A (ref)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS602598Y2 (ja) * 1978-04-19 1985-01-24 株式会社東芝 トナ−濃度検知装置
NL7808419A (nl) * 1978-08-14 1980-02-18 Oce Nederland Bv Tonerconcentratieregeling.
DE3009471C2 (de) * 1979-03-15 1982-04-29 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Entwicklertransportvorrichtung für elektrostatische Kopiergeräte
DE3118995C2 (de) * 1981-05-13 1983-02-03 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zur Einstellung der Höhe eines aus Toner und Trägerteilchen bestehenden Entwicklergemisches auf einer Entwicklerwalze
US4536681A (en) * 1983-07-19 1985-08-20 Minnesota Mining And Manufacturing Company Temperature compensated time exposure control circuit
US4570572A (en) * 1985-03-28 1986-02-18 Eastman Kodak Company Electrographic development apparatus
US4739907A (en) * 1987-04-27 1988-04-26 Xerox Corporation Developer storage and dispenser apparatus
US5890033A (en) * 1997-11-03 1999-03-30 Xerox Corporation Developer housing heater using a centrally heated mixing auger
JP3934792B2 (ja) * 1998-01-09 2007-06-20 シャープ株式会社 現像装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2894744A (en) * 1956-12-18 1959-07-14 Bruning Charles Co Inc Feed rollers for photo-conductive insulating material
US3358637A (en) * 1962-04-24 1967-12-19 Plastic Coating Corp Toner unit for photoelectrostatic reproduction equipment
US3399652A (en) * 1967-06-14 1968-09-03 Addressograph Multigraph Automatic toner concentrate detector
US3487978A (en) * 1967-06-14 1970-01-06 Addressograph Multigraph Automatic toner concentrate detector
DE2052835A1 (de) * 1969-10-20 1971-05-06 Minnesota Mining & Mfg Einrichtung zum Auftragen eines magnetisierbaren Pulvers auf eine Unter lage
US3664299A (en) * 1970-12-07 1972-05-23 Eg & G Inc Electrostatic recording paper toner section
US3817616A (en) * 1972-10-06 1974-06-18 Xerox Corp Thermal chamber for a developability regulating apparatus
JPS4998638A (ref) * 1973-01-25 1974-09-18
US3926338A (en) * 1973-11-05 1975-12-16 Xerox Corp Thermally insensitive particle concentration controller
NL177052C (nl) * 1973-12-17 1985-07-16 Oce Van Der Grinten Nv Inrichting voor het ontwikkelen van een electrostatisch ladingsbeeld op een drager.
GB1485148A (en) * 1973-12-17 1977-09-08 Oce Van Der Grinten Nv Apparatus for the development of an electrostatic charge image on a support
US3999514A (en) * 1975-09-29 1976-12-28 International Business Machines Corporation Magnetic brush developer
US4014291A (en) * 1976-01-26 1977-03-29 Nashua Corporation Image developing system

Also Published As

Publication number Publication date
FR2349864A1 (fr) 1977-11-25
US4112870A (en) 1978-09-12
GB1542019A (en) 1979-03-14
DE2718319C2 (de) 1986-06-26
DE2718319A1 (de) 1977-11-03
NL7604400A (nl) 1977-10-28
FR2349864B1 (ref) 1983-10-07
JPS6244269B2 (ref) 1987-09-18
JPS52130644A (en) 1977-11-02

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Legal Events

Date Code Title Description
MKEX Expiry