DE2718319C2 - Entwicklungseinrichtung für elektrostatische Ladungsbilder - Google Patents

Entwicklungseinrichtung für elektrostatische Ladungsbilder

Info

Publication number
DE2718319C2
DE2718319C2 DE2718319A DE2718319A DE2718319C2 DE 2718319 C2 DE2718319 C2 DE 2718319C2 DE 2718319 A DE2718319 A DE 2718319A DE 2718319 A DE2718319 A DE 2718319A DE 2718319 C2 DE2718319 C2 DE 2718319C2
Authority
DE
Germany
Prior art keywords
trough
powder
developing powder
transport
developing
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
DE2718319A
Other languages
German (de)
English (en)
Other versions
DE2718319A1 (de
Inventor
Adrianus W.M. van Venlo-W. Bavel
Albert Th. Maasbree Deckers
Piet M. Venlo-W. Extra
Jacobus J. van Grubbenvorst Lieshout
Lambertus R.J.M. Swalmen Smeets
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
Publication of DE2718319A1 publication Critical patent/DE2718319A1/de
Application granted granted Critical
Publication of DE2718319C2 publication Critical patent/DE2718319C2/de
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)
DE2718319A 1976-04-26 1977-04-25 Entwicklungseinrichtung für elektrostatische Ladungsbilder Expired DE2718319C2 (de)

Applications Claiming Priority (1)

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.

Publications (2)

Publication Number Publication Date
DE2718319A1 DE2718319A1 (de) 1977-11-03
DE2718319C2 true DE2718319C2 (de) 1986-06-26

Family

ID=19826068

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2718319A Expired DE2718319C2 (de) 1976-04-26 1977-04-25 Entwicklungseinrichtung für elektrostatische Ladungsbilder

Country Status (7)

Country Link
US (1) US4112870A (2)
JP (1) JPS52130644A (2)
CA (1) CA1099094A (2)
DE (1) DE2718319C2 (2)
FR (1) FR2349864A1 (2)
GB (1) GB1542019A (2)
NL (1) NL7604400A (2)

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.
US4344692A (en) * 1979-03-15 1982-08-17 Tokyo Shibaura Denki Kabushiki Kaisha Developer transportation device for electrostatic copying machine
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 (2) * 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
JPS52130644A (en) 1977-11-02
CA1099094A (en) 1981-04-14
NL7604400A (nl) 1977-10-28
JPS6244269B2 (2) 1987-09-18
FR2349864B1 (2) 1983-10-07
US4112870A (en) 1978-09-12
GB1542019A (en) 1979-03-14
DE2718319A1 (de) 1977-11-03
FR2349864A1 (fr) 1977-11-25

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee