GB1361092A - Electrographic apparatus - Google Patents

Electrographic apparatus

Info

Publication number
GB1361092A
GB1361092A GB5646171A GB5646171A GB1361092A GB 1361092 A GB1361092 A GB 1361092A GB 5646171 A GB5646171 A GB 5646171A GB 5646171 A GB5646171 A GB 5646171A GB 1361092 A GB1361092 A GB 1361092A
Authority
GB
United Kingdom
Prior art keywords
toner
applicator
dec
blades
doctored
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
GB5646171A
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1361092A publication Critical patent/GB1361092A/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
    • G03G9/00—Developers
    • 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
    • G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
    • G03G15/0812—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer regulating means, e.g. structure of doctor blade

Landscapes

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

Abstract

1361092 Electrographic developing apparatus INTERNATIONAL BUSINESS MACHINES CORP 6 Dec 1971 [23 Dec 1970] 56461/71 Heading G2H A toner applicator 13 (e.g. a roller or belt) is loaded with toner from a reservoir 15, the toner is doctored and triboelectrically charged by spring mounted blades 16 and then the applicator 13 is contacted with an image bearing drum 10 without any relative peripheral motion therebetween. The blades 16 may be of P. T. F. E. or polyformaldehyde. Applicator 13 may be electrically biased. The toner may be subjected to corona discharge before application.
GB5646171A 1970-12-23 1971-12-06 Electrographic apparatus Expired GB1361092A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10097170A 1970-12-23 1970-12-23

Publications (1)

Publication Number Publication Date
GB1361092A true GB1361092A (en) 1974-07-24

Family

ID=22282462

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5646171A Expired GB1361092A (en) 1970-12-23 1971-12-06 Electrographic apparatus

Country Status (5)

Country Link
US (1) US3731146A (en)
JP (1) JPS5136070B1 (en)
DE (1) DE2159008A1 (en)
FR (1) FR2119341A5 (en)
GB (1) GB1361092A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170917B (en) * 1985-02-08 1989-11-01 Ricoh Kk Developing latent images using non-magnetic one-component colour toner

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901187A (en) * 1971-10-14 1975-08-26 Xerox Corp Developer retoning apparatus
US3881927A (en) * 1973-04-16 1975-05-06 Xerox Corp Half tone development process for touchdown system in electrostatic imaging
JPS52143830A (en) * 1976-05-26 1977-11-30 Hitachi Metals Ltd Method of developing charged latent image
GB1583472A (en) * 1976-07-16 1981-01-28 Ricoh Kk Electrophotographic apparatus
FR2362428A1 (en) * 1976-08-16 1978-03-17 Eskofot Research As Powder applicator for electrostatic copier - charges toner particles passing narrow gap on drum by dielectric strip
DE2830012C2 (en) * 1977-07-07 1983-07-28 Ricoh Co., Ltd., Tokyo Device for developing an electrostatic charge image
GB2006054B (en) * 1977-09-10 1982-12-08 Canon Kk Developing apparatus for electrostatic image
DE2861639D1 (en) * 1977-12-22 1982-03-25 Agfa Gevaert Nv Developing device for xerographic copying machines
US5044310A (en) * 1978-07-28 1991-09-03 Canon Kabushiki Kaisha Developing apparatus for non-magnetic developer
US5194359A (en) * 1978-07-28 1993-03-16 Canon Kabushiki Kaisha Developing method for one component developer
CA1138723A (en) * 1978-07-28 1983-01-04 Tsutomu Toyono Developing method for developer transfer under electrical bias and apparatus therefor
JPS57176064A (en) * 1981-04-23 1982-10-29 Olympus Optical Co Ltd Elastomer member with nonviscous surface treated layer and its manufacture
US4459009A (en) * 1981-07-27 1984-07-10 Xerox Corporation Apparatus, process for charging toner particles
US4615606A (en) * 1982-12-17 1986-10-07 Olympus Optical Co., Ltd. Apparatus for developing electrostatic latent image
DE3462633D1 (en) * 1983-09-30 1987-04-16 Toshiba Kk Developing apparatus
US4833059A (en) * 1986-03-18 1989-05-23 Kabushiki Kaisha Toshiba Developing method using one-component non-magnetic toner with positive frictional charge
JPS63208062A (en) * 1987-02-25 1988-08-29 Toshiba Corp Developing method
JPS63279261A (en) * 1987-05-11 1988-11-16 Toshiba Corp Developing method
JPH01193871A (en) * 1988-01-29 1989-08-03 Toshiba Corp Developer
US4943816A (en) * 1989-06-14 1990-07-24 International Business Machines Corporation High quality thermal jet printer configuration suitable for producing color images
JP2950566B2 (en) * 1990-02-14 1999-09-20 株式会社東芝 Developing device
JP2921962B2 (en) * 1990-10-31 1999-07-19 株式会社東芝 Developing device
JP2717732B2 (en) * 1991-01-31 1998-02-25 株式会社巴川製紙所 Method for developing non-magnetic one-component toner
JP3085727B2 (en) * 1991-05-24 2000-09-11 株式会社東芝 Developing device
JPH05165317A (en) * 1991-12-13 1993-07-02 Toshiba Corp Development device
CA2105254C (en) * 1992-08-31 1999-12-28 Michihisa Iguchi Developing device for electrophotographic apparatus
KR0174689B1 (en) * 1996-09-11 1999-04-01 삼성전자주식회사 Preventing ghost device of development roller
US6143580A (en) 1999-02-17 2000-11-07 Micron Technology, Inc. Methods of forming a mask pattern and methods of forming a field emitter tip mask
US6420012B1 (en) 1999-07-21 2002-07-16 Bridgestone Corporation Toner carrier and image-forming apparatus
US7162180B1 (en) 1999-09-03 2007-01-09 Bridgestone Corporation Elastic roller
US6810225B2 (en) 2001-07-11 2004-10-26 Bridgestone Corporation Conductive member and electrophotographic apparatus incorporating the conductive member
US8038591B2 (en) * 2007-03-27 2011-10-18 Lexmark International, Inc. Image forming apparatus component with triboelectric properties
US8500616B2 (en) 2007-10-09 2013-08-06 Lexmark International, Inc. Toner mass control by surface roughness and voids

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3251706A (en) * 1954-01-04 1966-05-17 Xerox Corp Xerographic development method and apparatus
US2892709A (en) * 1955-03-07 1959-06-30 Gen Dynamics Corp Electrostatic printing
US3152012A (en) * 1960-12-19 1964-10-06 Ibm Apparatus for the development of electrostatic images
US3284224A (en) * 1963-01-04 1966-11-08 Xerox Corp Controlled xerographic development
US3296965A (en) * 1964-06-03 1967-01-10 Interchem Corp Method of electrostatic powder gravure printing and apparatus therefor
US3306193A (en) * 1964-09-14 1967-02-28 Continental Can Co Electrostatic screen printing with magnetic conveyer and moving base electrode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170917B (en) * 1985-02-08 1989-11-01 Ricoh Kk Developing latent images using non-magnetic one-component colour toner

Also Published As

Publication number Publication date
DE2159008A1 (en) 1972-07-13
JPS5136070B1 (en) 1976-10-06
US3731146A (en) 1973-05-01
FR2119341A5 (en) 1972-08-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee