GB1133462A - Electrostatic image development - Google Patents

Electrostatic image development

Info

Publication number
GB1133462A
GB1133462A GB53121/65A GB5312165A GB1133462A GB 1133462 A GB1133462 A GB 1133462A GB 53121/65 A GB53121/65 A GB 53121/65A GB 5312165 A GB5312165 A GB 5312165A GB 1133462 A GB1133462 A GB 1133462A
Authority
GB
United Kingdom
Prior art keywords
toner particles
shoot
drum
developer
development
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
GB53121/65A
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 Ltd
Original Assignee
Rank Xerox 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 Rank Xerox Ltd filed Critical Rank Xerox Ltd
Publication of GB1133462A publication Critical patent/GB1133462A/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
    • G03G15/0803—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer in a powder cloud
    • 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
    • G03G15/0801—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer for cascading

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

1,133,462. Developing electrostatic images. RANK XEROX Ltd. Dec.14, 1965 [Dec.28, 1964], No.53121/65. Heading G2H. A method of developing latent electrostatic images comprises cascading a mixture of granular carrier and toner particles across the image bearing member and contacting the member with a fluid suspension of toner particles to provide for edge and solid area development. The fluid suspension may be formed in gas or liquid, e.g. air, carbon dioxide, nitrogen, oxygen, trichlorotrifluorethane or Sobio Odourless solvent. Cascade development is carried out in known manner by a bucket conveyer 34, Fig.4. As developer 31 cascades over drum 21 toner particles are separated from carrier particles and deposited to form a visible image. Unused developer is guided down shoot 32 where it is formed into a cloud by applying a potential to shoot 32. Toner particles pass through a screen 33 adjacent the drum. The direction of drum 21 may be reversed to carry out the powder cloud development before the cascade development In a modification, Fig. 5 (not shown) the developer is cascaded into the space between a screen (33') and shoot (32').
GB53121/65A 1964-12-28 1965-12-14 Electrostatic image development Expired GB1133462A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42129764A 1964-12-28 1964-12-28
US76245168A 1968-09-25 1968-09-25

Publications (1)

Publication Number Publication Date
GB1133462A true GB1133462A (en) 1968-11-13

Family

ID=27025182

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53121/65A Expired GB1133462A (en) 1964-12-28 1965-12-14 Electrostatic image development

Country Status (5)

Country Link
US (1) US3542579A (en)
DE (1) DE1497233B2 (en)
FR (1) FR1465790A (en)
GB (1) GB1133462A (en)
NL (1) NL6516798A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833364A (en) * 1968-11-18 1974-09-03 Xerox Corp Method of developing electrostatic image charge
US3638610A (en) * 1969-07-03 1972-02-01 Xerox Corp Development apparatus
US3790397A (en) * 1969-09-15 1974-02-05 Xerox Corp Retoning carrier beads in the development zone
US3648658A (en) * 1969-09-15 1972-03-14 Xerox Corp Developing apparatus
US3641981A (en) * 1969-12-24 1972-02-15 Xerox Corp Apparatus for controlling developer charge level
US3664857A (en) * 1970-02-06 1972-05-23 Eastman Kodak Co Xerographic development apparatus and process
US3662711A (en) * 1970-03-19 1972-05-16 Xerox Corp Development apparatus
US3685488A (en) * 1970-07-10 1972-08-22 Xerox Corp Xerographic development
US3696784A (en) * 1970-12-15 1972-10-10 Xerox Corp Xerographic development apparatus
US3754962A (en) * 1970-12-21 1973-08-28 Ibm Development of electrostatic images
BE791113A (en) * 1971-11-24 1973-05-09 Agfa Gevaert Nv CASCADE DEVELOPMENT DEVICE FOR AN ELECTROSTATIC COPIER
US3880119A (en) * 1973-12-20 1975-04-29 Xerox Corp Development apparatus
US3926516A (en) * 1974-02-20 1975-12-16 Xerox Corp Development apparatus for an electrostatographic printing machine
US4162842A (en) * 1977-01-28 1979-07-31 Burroughs Corporation Method and apparatus for developing a latent, electrostatic image in non-impact printing

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2808328A (en) * 1950-07-15 1957-10-01 Carlyle W Jacob Method and apparatus for xerographic reproduction
US2784109A (en) * 1950-09-18 1957-03-05 Haloid Co Method for developing electrostatic images
US2940864A (en) * 1954-03-24 1960-06-14 Sylvania Electric Prod Method of preparing a fluorescent screen
US2808023A (en) * 1955-01-03 1957-10-01 Haloid Co Apparatus for developing electrostatic latent image
US2862472A (en) * 1956-11-29 1958-12-02 Battelle Development Corp Electrostatic image development apparatus
US3140175A (en) * 1957-07-03 1964-07-07 Edward K Kaprelian Color electrophotography
US2927554A (en) * 1957-09-23 1960-03-08 Ibm Cascade developing apparatus
US3008826A (en) * 1958-03-06 1961-11-14 Xerox Corp Xerographic development
US3011473A (en) * 1958-05-01 1961-12-05 Xerox Corp Xerographic apparatus
US3011474A (en) * 1959-02-06 1961-12-05 Harold O Ulrich Xerographic development electrode apparatus
US3257223A (en) * 1962-11-01 1966-06-21 Xerox Corp Electrostatic powder cloud xerographic development method and apparatus
US3241483A (en) * 1963-06-17 1966-03-22 Owens Illinois Glass Co Method of electrostatic screen printing
US3306193A (en) * 1964-09-14 1967-02-28 Continental Can Co Electrostatic screen printing with magnetic conveyer and moving base electrode
US3294017A (en) * 1964-10-19 1966-12-27 Owens Illinois Inc Process and apparatus for electrostatically printing on hot substrate

Also Published As

Publication number Publication date
FR1465790A (en) 1967-01-13
DE1497233B2 (en) 1977-05-18
NL6516798A (en) 1966-06-29
US3542579A (en) 1970-11-24
DE1497233A1 (en) 1969-05-14

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