GB1313870A - Development of electrostatic images - Google Patents

Development of electrostatic images

Info

Publication number
GB1313870A
GB1313870A GB3161270A GB3161270A GB1313870A GB 1313870 A GB1313870 A GB 1313870A GB 3161270 A GB3161270 A GB 3161270A GB 3161270 A GB3161270 A GB 3161270A GB 1313870 A GB1313870 A GB 1313870A
Authority
GB
United Kingdom
Prior art keywords
image
image areas
dispenser
toner
cloud
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
GB3161270A
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 GB1313870A publication Critical patent/GB1313870A/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
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • 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
    • G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit
    • 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

Landscapes

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

Abstract

1313870 Developing electrostatic images XEROX CORP 30 June 1970 [3 July 1969] 31612/70 Heading G2H An electrostatic image is developed by means of a powder cloud and the developed image brushed to move toner from non-image areas to image areas. A flow of toner from a dispenser 18 is effected by flexible wires 26 extending through perforations, the size of which is variable, in the base of the dispenser 18 and fixed at one end to a cloud generator box 12 comprising a plurality of compartments Fig.3 (not shown) which is oscillated to create a cloud of charged toner particles which are attracted through a mesh screen 13 to the latent image on the drum 1. The carrier particles of the developer remain within the box 12. The generator box may be held at a potential and is attached to the dispenser 18 by a rubber membrane 19. Adjacent the generator 12 a rabbit fur brush 29 is mounted on a pad 30 which is oscillated by a motor 34 parallel to the axis of rotation of the drum 1 to remove toner from non-image areas and transfer it to image areas. The pad 30 may be held at a fixed potential.
GB3161270A 1969-07-03 1970-06-30 Development of electrostatic images Expired GB1313870A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83895269A 1969-07-03 1969-07-03

Publications (1)

Publication Number Publication Date
GB1313870A true GB1313870A (en) 1973-04-18

Family

ID=25278473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3161270A Expired GB1313870A (en) 1969-07-03 1970-06-30 Development of electrostatic images

Country Status (4)

Country Link
US (1) US3670701A (en)
JP (1) JPS498903B1 (en)
DE (1) DE2033151A1 (en)
GB (1) GB1313870A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767446A (en) * 1969-07-03 1973-10-23 Xerox Corp Development method with oscillating brush pad
JPS5330329B2 (en) * 1972-09-25 1978-08-26
US3973517A (en) * 1975-02-18 1976-08-10 Xerox Corporation Development device and method
US4069791A (en) * 1976-10-01 1978-01-24 E. I. Du Pont De Nemours And Company Automatic toning device
US4195591A (en) * 1977-12-30 1980-04-01 Yorktown Industries, Inc. Cascade assembly and method
US4414916A (en) * 1981-05-20 1983-11-15 E. I. Du Pont De Nemours & Co. Automatic toning apparatus having a vertically reciprocating hopper

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3013703A (en) * 1958-11-28 1961-12-19 Xerox Corp Powder dispensing apparatus
US3238053A (en) * 1962-04-02 1966-03-01 Du Pont Electrostatic decoration of hot glass
US3470009A (en) * 1964-12-28 1969-09-30 Xerox Corp Powder cloud development of electrostatic images
US3503776A (en) * 1966-02-21 1970-03-31 Xerox Corp Xerographic development

Also Published As

Publication number Publication date
JPS498903B1 (en) 1974-02-28
US3670701A (en) 1972-06-20
DE2033151A1 (en) 1971-01-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees