GB1322363A - Turbo-cloud development - Google Patents

Turbo-cloud development

Info

Publication number
GB1322363A
GB1322363A GB3161370A GB3161370A GB1322363A GB 1322363 A GB1322363 A GB 1322363A GB 3161370 A GB3161370 A GB 3161370A GB 3161370 A GB3161370 A GB 3161370A GB 1322363 A GB1322363 A GB 1322363A
Authority
GB
United Kingdom
Prior art keywords
toner
roller
particles
air
developing device
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
GB3161370A
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 GB1322363A publication Critical patent/GB1322363A/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

Landscapes

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

Abstract

1322363 Powder cloud developing device XEROX CORP 30 June 1970 [3 July 1969] 31613/70 Heading G2H In a powder cloud developing device 20 toner particles are dispensed at a controlled rate into a high velocity air stream emerging from a nozzle 25 by a roller 24 which also charges the particles, either triboelectrically or by electrical biasing the air stream being directed between a development electrode 30 and the surface to be developed. The electrode 30 may be provided with protrusions e.g. hemispheres, fibre tufts or perforated funnel members, and/or may be vibrated in order to introduce turbulence into the air flow. The 'spent' stream is directed past a precipitation roller 31 upon which unused toner is collected, through a filter 34 and back to the far 21. A reservoir 23 of toner is provided above roller 24 to which toner on roller 24 is returned by a scraper blade 35. Seals 26 e.g. of rabbit fur are provided to prevent escape of toner. In a simplified embodiment Fig. 7 (not shown), a transverse flow fan 72 is mounted in a housing 71 creating a clockwise flow of air. The fan blades are coated with a material having a triboelectric property such that the toner particles are charged by contact.
GB3161370A 1969-07-03 1970-06-30 Turbo-cloud development Expired GB1322363A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83895169A 1969-07-03 1969-07-03

Publications (1)

Publication Number Publication Date
GB1322363A true GB1322363A (en) 1973-07-04

Family

ID=25278472

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3161370A Expired GB1322363A (en) 1969-07-03 1970-06-30 Turbo-cloud development

Country Status (5)

Country Link
US (1) US3633544A (en)
JP (1) JPS491218B1 (en)
CA (1) CA934959A (en)
DE (1) DE2033152A1 (en)
GB (1) GB1322363A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3791730A (en) * 1971-01-12 1974-02-12 Xerox Corp Apparatus for developing electrostatic latent images
US3937570A (en) * 1971-06-03 1976-02-10 Xerox Corporation Cloud suppression in an electrostatic copying apparatus
US3991712A (en) * 1974-01-02 1976-11-16 Itek Corporation Cascade development station having a roughened development plate for enhancing developer mixture turbulence
US4168901A (en) * 1975-01-21 1979-09-25 Canon Kabushiki Kaisha Developer housing sealing device for electrophotography
US3973517A (en) * 1975-02-18 1976-08-10 Xerox Corporation Development device and method
DE2507152C3 (en) * 1975-02-19 1978-11-02 Agfa-Gevaert Ag, 5090 Leverkusen Cleaning device for electrophotographic copiers
CH603249A5 (en) * 1976-02-20 1978-08-15 Hero Conserven
US4400081A (en) * 1980-07-21 1983-08-23 Ricoh Company, Ltd. Apparatus for cleaning photosensitive member of electrostatic copying machine
US4681426A (en) * 1986-05-19 1987-07-21 Xerox Corporation Brush end seals for blade cleaner housing
JP3310549B2 (en) * 1996-07-24 2002-08-05 シャープ株式会社 Developing device using non-magnetic one-component developer
US5754930A (en) * 1996-10-01 1998-05-19 Xerox Corporation Fluidized toner development using a rigid porous donor roll
WO2008026718A1 (en) * 2006-08-28 2008-03-06 Brother Kogyo Kabushiki Kaisha Image forming device
DE102007003598B3 (en) * 2007-01-24 2008-10-16 OCé PRINTING SYSTEMS GMBH Charge image developing device for e.g. electrophotographic printer, has potential element arranged in movement direction of jump element, where toner cloud of toner particle is formed between elements before development region
DE102008032790A1 (en) 2008-07-11 2010-01-21 OCé PRINTING SYSTEMS GMBH Device for developing charge images by e.g. electrophotographic printing device, has potential element arranged before developing region, where electric field is produced by alternating voltage at element end that is turned towards region
DE102009060334B4 (en) * 2009-12-23 2012-02-16 OCé PRINTING SYSTEMS GMBH Device for developing charge images generated on a charge image carrier in an electrophoretic pressure device
JP2018097099A (en) * 2016-12-12 2018-06-21 コニカミノルタ株式会社 Image formation apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2876737A (en) * 1953-10-12 1959-03-10 Battelle Development Corp Apparatus for developing electrostatic images on sheet material
DE1288056B (en) * 1956-06-06 1969-01-30 Johnson & Johnson, New Brunswick, N.J. (V.St.A.) Device for producing a flexible, textile, non-woven fibrous web
US3008826A (en) * 1958-03-06 1961-11-14 Xerox Corp Xerographic development
GB1070738A (en) * 1964-12-03 1967-06-01 Louis Frederick William Lawes Cascade developing apparatus
US3336905A (en) * 1964-12-18 1967-08-22 Xerox Corp Xerographic developer apparatus
US3357399A (en) * 1966-07-21 1967-12-12 Xerox Corp Combined fluidized bed and inverted cascade development apparatus
US3484265A (en) * 1966-07-21 1969-12-16 Xerox Corp Transversely reciprocating fluidized bed development method
US3370529A (en) * 1966-08-05 1968-02-27 Fairchild Camera Instr Co Electrostatic printer having selfregulating corona discharge
US3357403A (en) * 1967-01-03 1967-12-12 Xerox Corp Powder cloud development apparatus

Also Published As

Publication number Publication date
CA934959A (en) 1973-10-09
DE2033152A1 (en) 1971-02-11
US3633544A (en) 1972-01-11
JPS491218B1 (en) 1974-01-12

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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