DE69720825T2 - Übertragungswalzen mit kapazitiver Kommutierung - Google Patents

Übertragungswalzen mit kapazitiver Kommutierung

Info

Publication number
DE69720825T2
DE69720825T2 DE69720825T DE69720825T DE69720825T2 DE 69720825 T2 DE69720825 T2 DE 69720825T2 DE 69720825 T DE69720825 T DE 69720825T DE 69720825 T DE69720825 T DE 69720825T DE 69720825 T2 DE69720825 T2 DE 69720825T2
Authority
DE
Germany
Prior art keywords
transfer rollers
commutation transfer
capacitive commutation
capacitive
rollers
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 - Fee Related
Application number
DE69720825T
Other languages
English (en)
Other versions
DE69720825D1 (de
Inventor
Delmer G Parker
Gerald M Fletcher
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 DE69720825D1 publication Critical patent/DE69720825D1/de
Application granted granted Critical
Publication of DE69720825T2 publication Critical patent/DE69720825T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G03G15/0806—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
    • G03G15/0818—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 structure of the donor member, e.g. surface properties
    • 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
    • G03G2215/06—Developing structures, details
    • G03G2215/0634—Developing device
    • G03G2215/0636—Specific type of dry developer device
    • G03G2215/0651—Electrodes in donor member surface

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
DE69720825T 1996-01-11 1997-01-10 Übertragungswalzen mit kapazitiver Kommutierung Expired - Fee Related DE69720825T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/585,070 US5592271A (en) 1996-01-11 1996-01-11 Donor rolls with capacitively cushioned commutation

Publications (2)

Publication Number Publication Date
DE69720825D1 DE69720825D1 (de) 2003-05-22
DE69720825T2 true DE69720825T2 (de) 2003-11-13

Family

ID=24339934

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69720825T Expired - Fee Related DE69720825T2 (de) 1996-01-11 1997-01-10 Übertragungswalzen mit kapazitiver Kommutierung

Country Status (4)

Country Link
US (1) US5592271A (de)
EP (1) EP0786707B1 (de)
JP (1) JPH09197805A (de)
DE (1) DE69720825T2 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5594534A (en) * 1996-01-11 1997-01-14 Xerox Corporation Electroded doner roll structure incorporating resistive network
US5729807A (en) * 1997-01-21 1998-03-17 Xerox Corporation Optically switched commutator scheme for hybrid scavengeless segmented electroded donor rolls
US5892303A (en) * 1997-03-28 1999-04-06 Xerox Corporation Compact design for combination of an electrical circuit with a segmented electrode development roll
US5920750A (en) * 1997-03-28 1999-07-06 Xerox Corporation Connection between a compact electrical circuit and a segmented electrode development roll
US5835829A (en) * 1997-05-12 1998-11-10 Xerox Corporation Single-ended symmetric resistive ring design for sed rolls
US6484388B1 (en) * 2000-08-10 2002-11-26 Delphi Technologies, Inc. Sequential roll-forming process for a stator
KR20050055271A (ko) * 2003-12-06 2005-06-13 (주) 신코퍼레이션 전하량이 다른 두극판을 갖는 초고용량 전기화학 커패시터
KR100694146B1 (ko) * 2005-07-20 2007-03-12 삼성전자주식회사 하이브리드방식 현상장치 및 현상방법
US7689150B2 (en) * 2006-11-24 2010-03-30 Konica Minolta Business Technologies, Inc. Image forming apparatus using trapezoidal shaped electric field and method for forming image
JP5038833B2 (ja) * 2007-09-20 2012-10-03 京セラドキュメントソリューションズ株式会社 現像装置及びこれを搭載した画像形成装置
JP2010061057A (ja) * 2008-09-08 2010-03-18 Ricoh Co Ltd 現像装置及び画像形成装置
JP5435336B2 (ja) * 2008-12-15 2014-03-05 株式会社リコー 現像剤担持体、現像装置、画像形成装置及びプロセスユニット
JP5333909B2 (ja) * 2008-12-15 2013-11-06 株式会社リコー 現像装置、画像形成装置及びプロセスユニット
JP2010191209A (ja) * 2009-02-18 2010-09-02 Ricoh Co Ltd 画像形成装置
JP5459582B2 (ja) * 2009-03-13 2014-04-02 株式会社リコー 現像装置及び画像形成装置
JP5354370B2 (ja) * 2009-09-14 2013-11-27 株式会社リコー 現像装置及び画像形成装置
JP5418898B2 (ja) * 2009-09-15 2014-02-19 株式会社リコー 現像装置、画像形成装置及びプロセスユニット
JP5625802B2 (ja) * 2010-11-22 2014-11-19 株式会社リコー 現像剤担持体、現像装置、画像形成装置及びプロセスユニット
US8276468B2 (en) * 2011-01-18 2012-10-02 Xerox Corporation Piezoelectric sensors for automatic measurement of NIP width for fuser member control

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL286833A (de) * 1961-12-27
US3980541A (en) * 1967-06-05 1976-09-14 Aine Harry E Electrode structures for electric treatment of fluids and filters using same
US3996892A (en) * 1975-02-24 1976-12-14 Xerox Corporation Spatially programmable electrode-type roll for electrostatographic processors and the like
US4868600A (en) * 1988-03-21 1989-09-19 Xerox Corporation Scavengeless development apparatus for use in highlight color imaging
US5172259A (en) 1991-02-27 1992-12-15 At&T Laboratories Embedded control network
US5220383A (en) * 1991-04-01 1993-06-15 Ricoh Company, Ltd. Developing device for an image forming apparatus having a large number of microfields formed on a developer carrier
US5504563A (en) * 1991-07-01 1996-04-02 Xerox Corporation Scavengeless donor roll development
US5172170A (en) * 1992-03-13 1992-12-15 Xerox Corporation Electroded donor roll for a scavengeless developer unit
US5339142A (en) * 1992-07-30 1994-08-16 Xerox Corporation AC/DC spatially programmable donor roll for xerographic development
US5337124A (en) * 1992-09-28 1994-08-09 Xerox Corporation Low bead impulse donor loading
US5268259A (en) * 1992-10-16 1993-12-07 Xerox Corporation Process for preparing an electroded donor roll
US5300339A (en) * 1993-03-29 1994-04-05 Xerox Corporation Development system coatings
US5289240A (en) * 1993-05-20 1994-02-22 Xerox Corporation Scavengeless developer unit with electroded donor roll
US5394225A (en) * 1993-11-23 1995-02-28 Xerox Corporation Optical switching scheme for SCD donor roll bias
US5413807A (en) 1994-10-17 1995-05-09 Xerox Corporation Method of manufacturing a donor roll
US5515142A (en) * 1994-11-15 1996-05-07 Xerox Corporation Donor rolls with spiral electrodes for commutation
US5517287A (en) * 1995-01-23 1996-05-14 Xerox Corporation Donor rolls with interconnected electrodes

Also Published As

Publication number Publication date
JPH09197805A (ja) 1997-07-31
DE69720825D1 (de) 2003-05-22
EP0786707A3 (de) 1998-03-25
EP0786707B1 (de) 2003-04-16
US5592271A (en) 1997-01-07
EP0786707A2 (de) 1997-07-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee