BR9904420A - Elemento doador de voltagem assimétrica - Google Patents

Elemento doador de voltagem assimétrica

Info

Publication number
BR9904420A
BR9904420A BR9904420-0A BR9904420A BR9904420A BR 9904420 A BR9904420 A BR 9904420A BR 9904420 A BR9904420 A BR 9904420A BR 9904420 A BR9904420 A BR 9904420A
Authority
BR
Brazil
Prior art keywords
toner
donor
donor element
asymmetric voltage
reveals
Prior art date
Application number
BR9904420-0A
Other languages
English (en)
Inventor
Jeffrey J Folkins
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 BR9904420A publication Critical patent/BR9904420A/pt

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
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/06—Developing structures, details
    • G03G2215/0602—Developer
    • G03G2215/0604—Developer solid type
    • G03G2215/0614—Developer solid type one-component
    • G03G2215/0621—Developer solid type one-component powder cloud
    • 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
    • G03G2215/0643—Electrodes in developing area, e.g. wires, not belonging to the main donor part

Landscapes

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

Abstract

Patente de Invenção: <B>"ELEMENTO DOADOR DE VOLTAGEM ASSIMéTRICA"<D>. A presente invenção é um aparelho que revela uma imagem latente gravada sobre uma superfície com toner. Um elemento eletrodo perturbado eletricamente na zona de revelação entre o elemento fotocondutor e o cilindro doador destaca toners do cilindro doador, de modo a formar uma nuvem de pó de toner na zona de revelação. A perturbação elétrica aplicada ao elemento doador é uma onda assimétrica. O toner da nuvem de pó de toner revela a imagem latente.
BR9904420-0A 1998-10-02 1999-10-04 Elemento doador de voltagem assimétrica BR9904420A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/165,388 US5940667A (en) 1998-10-02 1998-10-02 Asymmetrical donor member voltage

Publications (1)

Publication Number Publication Date
BR9904420A true BR9904420A (pt) 2001-01-16

Family

ID=22598712

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9904420-0A BR9904420A (pt) 1998-10-02 1999-10-04 Elemento doador de voltagem assimétrica

Country Status (2)

Country Link
US (1) US5940667A (pt)
BR (1) BR9904420A (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100694146B1 (ko) * 2005-07-20 2007-03-12 삼성전자주식회사 하이브리드방식 현상장치 및 현상방법

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102305A (en) * 1977-07-01 1978-07-25 Xerox Corporation Development system with electrical field generating means
US4565438A (en) * 1984-02-01 1986-01-21 Xerox Corporation Development system using electrically field dependent developer material
US4868600A (en) * 1988-03-21 1989-09-19 Xerox Corporation Scavengeless development apparatus for use in highlight color imaging
US5144371A (en) * 1991-08-02 1992-09-01 Xerox Corporation Dual AC/dual frequency scavengeless development
US5206693A (en) * 1991-08-16 1993-04-27 Xerox Corporation Development unit having an asymmetrically biased electrode wires
US5204719A (en) * 1992-02-10 1993-04-20 Xerox Corporation Development system
US5404208A (en) * 1994-01-31 1995-04-04 Xerox Corporation Modulated wire AC scavengeless development
US5666619A (en) * 1995-12-06 1997-09-09 Xerox Corporation Electrode wire support for scavengeless development
US5758239A (en) * 1996-07-01 1998-05-26 Xerox Corporation Development system

Also Published As

Publication number Publication date
US5940667A (en) 1999-08-17

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 8A E 9A ANUIDADES

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 1990 DE 25/02/2009.