DE69012257D1 - Reprographisches Gerät. - Google Patents

Reprographisches Gerät.

Info

Publication number
DE69012257D1
DE69012257D1 DE69012257T DE69012257T DE69012257D1 DE 69012257 D1 DE69012257 D1 DE 69012257D1 DE 69012257 T DE69012257 T DE 69012257T DE 69012257 T DE69012257 T DE 69012257T DE 69012257 D1 DE69012257 D1 DE 69012257D1
Authority
DE
Germany
Prior art keywords
reprographic device
reprographic
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
DE69012257T
Other languages
English (en)
Other versions
DE69012257T2 (de
Inventor
Delmer G Parker
William M Allen
Howard M Stark
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
Application granted granted Critical
Publication of DE69012257D1 publication Critical patent/DE69012257D1/de
Publication of DE69012257T2 publication Critical patent/DE69012257T2/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
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
    • G03G21/0047—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using electrostatic or magnetic means; Details thereof, e.g. magnetic pole arrangement of magnetic devices
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/01—Electrographic processes using a charge pattern for multicoloured copies
    • G03G13/013—Electrographic processes using a charge pattern for multicoloured copies characterised by the developing step, e.g. the properties of the colour developers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/06—Developing
    • G03G13/08—Developing using a solid developer, e.g. powder developer
    • G03G13/09—Developing using a solid developer, e.g. powder developer using magnetic brush
    • 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
    • G03G2215/04—Arrangements for exposing and producing an image
    • G03G2215/0495—Plural charge levels of latent image produced, e.g. trilevel
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/0005—Cleaning of residual toner

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Color Electrophotography (AREA)
DE69012257T 1989-08-03 1990-08-03 Reprographisches Gerät. Expired - Fee Related DE69012257T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/389,465 US5021838A (en) 1989-08-03 1989-08-03 Preferred toner/carrier properties

Publications (2)

Publication Number Publication Date
DE69012257D1 true DE69012257D1 (de) 1994-10-13
DE69012257T2 DE69012257T2 (de) 1995-04-13

Family

ID=23538380

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69012257T Expired - Fee Related DE69012257T2 (de) 1989-08-03 1990-08-03 Reprographisches Gerät.

Country Status (4)

Country Link
US (1) US5021838A (de)
EP (1) EP0411953B1 (de)
JP (1) JPH0727294B2 (de)
DE (1) DE69012257T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5198841A (en) * 1989-12-08 1993-03-30 Minolta Camera Kabushiki Kaisha Electric printer
US5204697A (en) * 1990-09-04 1993-04-20 Xerox Corporation Ionographic functional color printer based on Traveling Cloud Development
US5144371A (en) * 1991-08-02 1992-09-01 Xerox Corporation Dual AC/dual frequency scavengeless development
US5208632A (en) * 1991-09-05 1993-05-04 Xerox Corporation Cycle up convergence of electrostatics in a tri-level imaging apparatus
US5236795A (en) * 1991-09-05 1993-08-17 Xerox Corporation Method of using an infra-red densitometer to insure two-pass cleaning
US5212029A (en) * 1991-09-05 1993-05-18 Xerox Corporation Ros assisted toner patch generation for use in tri-level imaging
US5210572A (en) * 1991-09-05 1993-05-11 Xerox Corporation Toner dispensing rate adjustment using the slope of successive ird readings
US5138378A (en) * 1991-09-05 1992-08-11 Xerox Corporation Electrostatic target recalculation in a xerographic imaging apparatus
US5227270A (en) * 1991-09-05 1993-07-13 Xerox Corporation Esv readings of toner test patches for adjusting ird readings of developed test patches
US5157441A (en) * 1991-09-05 1992-10-20 Xerox Corporation Dark decay control system utilizing two electrostatic voltmeters
US5119131A (en) * 1991-09-05 1992-06-02 Xerox Corporation Electrostatic voltmeter (ESV) zero offset adjustment
US5132730A (en) * 1991-09-05 1992-07-21 Xerox Corporation Monitoring of color developer housing in a tri-level highlight color imaging apparatus
CA2076791C (en) * 1991-09-05 1999-02-23 Mark A. Scheuer Charged area (cad) image loss control in a tri-level imaging apparatus
US5223897A (en) * 1991-09-05 1993-06-29 Xerox Corporation Tri-level imaging apparatus using different electrostatic targets for cycle up and runtime
US5208636A (en) * 1992-03-23 1993-05-04 Xerox Corporation Highlight color printing machine
JP4065513B2 (ja) * 2001-10-22 2008-03-26 キヤノン株式会社 フルカラー画像形成方法及び二成分系現像剤キット
US20070268511A1 (en) * 2006-05-19 2007-11-22 Eastman Kodak Company Secure document printing
US8101326B2 (en) * 2006-05-19 2012-01-24 Eastman Kodak Company Secure document printing method and system

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4078929A (en) * 1976-11-26 1978-03-14 Xerox Corporation Method for two-color development of a xerographic charge pattern
JPS5481855A (en) * 1977-12-13 1979-06-29 Fujitsu Ltd Two color print type electrostatic recoder
JPS6032191B2 (ja) * 1978-05-24 1985-07-26 株式会社リコー 二色現像方法
JPS5624359A (en) * 1979-08-02 1981-03-07 Ricoh Co Ltd Dry type binary developer for two-color electrophotography
JPS5683760A (en) * 1979-12-13 1981-07-08 Fujitsu Ltd Two-color developing method
JPS57188061A (en) * 1981-05-15 1982-11-18 Hitachi Ltd Electrophotographing device
US4562130A (en) * 1982-09-28 1985-12-31 Minolta Camera Kabushiki Kaisha Method of forming composite images
US4525447A (en) * 1982-11-08 1985-06-25 Minolta Camera Kabushiki Kaisha Image forming method using three component developer
JPS59101657A (ja) * 1982-12-02 1984-06-12 Minolta Camera Co Ltd ２色画像形成方法
JPS59214049A (ja) * 1983-05-20 1984-12-03 Fuji Xerox Co Ltd 電子複写機の現像方法
JPS60142365A (ja) * 1983-12-28 1985-07-27 Casio Comput Co Ltd ２色現像装置
US4594302A (en) * 1984-05-31 1986-06-10 Mita Industrial Co., Ltd. Developing process for two-colored electrophotography
JPS62177569A (ja) * 1986-01-31 1987-08-04 Toshiba Corp 記録装置
US4761668A (en) * 1986-09-29 1988-08-02 Xerox Corporation Highlight color printer
JP2507359B2 (ja) * 1986-10-28 1996-06-12 株式会社東芝 画像形成装置
US4731634A (en) * 1986-11-03 1988-03-15 Xerox Corporation Apparatus for printing black and plural highlight color images in a single pass
US4771314A (en) * 1986-12-29 1988-09-13 Xerox Corporation Developer apparatus for a highlight printing apparatus
US4811046A (en) * 1987-07-28 1989-03-07 Xerox Corporation Tri-level highlight color printing apparatus with cycle-up and cycle-down control
US4761672A (en) * 1987-07-28 1988-08-02 Xerox Corporation Ramped developer biases
US4833504A (en) * 1987-08-31 1989-05-23 Xerox Corporation Single pass highlight color printer including a scavengeless developer housing

Also Published As

Publication number Publication date
DE69012257T2 (de) 1995-04-13
EP0411953A3 (en) 1991-12-18
EP0411953A2 (de) 1991-02-06
US5021838A (en) 1991-06-04
JPH03137660A (ja) 1991-06-12
EP0411953B1 (de) 1994-09-07
JPH0727294B2 (ja) 1995-03-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee