WO1989002615A3 - Procede et dispositif electrophotographique - Google Patents

Procede et dispositif electrophotographique Download PDF

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Publication number
WO1989002615A3
WO1989002615A3 PCT/US1988/003097 US8803097W WO8902615A3 WO 1989002615 A3 WO1989002615 A3 WO 1989002615A3 US 8803097 W US8803097 W US 8803097W WO 8902615 A3 WO8902615 A3 WO 8902615A3
Authority
WO
WIPO (PCT)
Prior art keywords
charge
portions
electrophotographic method
different
charged
Prior art date
Application number
PCT/US1988/003097
Other languages
English (en)
Other versions
WO1989002615A2 (fr
Inventor
Christopher Blake Liston
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of WO1989002615A2 publication Critical patent/WO1989002615A2/fr
Publication of WO1989002615A3 publication Critical patent/WO1989002615A3/fr

Links

Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/001—Electric or magnetic imagery, e.g., xerography, electrography, magnetography, etc. Process, composition, or product
    • Y10S430/102—Electrically charging radiation-conductive surface

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Color Electrophotography (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)

Abstract

Un élément électrophotosensible (2) est chargé uniformément et des parties destinées à être colorées par un type de toner sont effacés. Ces parties sont remplies avec une charge d'un potentiel différent, par exemple une charge de polarité opposée à celle de la charge originale. On expose l'élément chargé de manière à y former une image et on le développe avec deux toners qui sont attirés sélectivement par les potentiels de charges différentes. Ce procédé permet de former une image multicolore par une seule exposition.
PCT/US1988/003097 1987-09-21 1988-09-12 Procede et dispositif electrophotographique WO1989002615A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/099,043 US4804603A (en) 1987-09-21 1987-09-21 Electrophotographic method and apparatus
US099,043 1987-09-21

Publications (2)

Publication Number Publication Date
WO1989002615A2 WO1989002615A2 (fr) 1989-03-23
WO1989002615A3 true WO1989002615A3 (fr) 1989-04-20

Family

ID=22272271

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1988/003097 WO1989002615A2 (fr) 1987-09-21 1988-09-12 Procede et dispositif electrophotographique

Country Status (4)

Country Link
US (1) US4804603A (fr)
EP (1) EP0336962A1 (fr)
JP (1) JPH02501509A (fr)
WO (1) WO1989002615A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4985329A (en) * 1988-12-30 1991-01-15 E. I. Du Pont De Nemours And Company Bipolar liquid electrostatic developer
US20060037514A1 (en) * 2004-08-20 2006-02-23 Leif Hermansson Chemically bonded ceramic material
EP1907827A2 (fr) * 2005-07-20 2008-04-09 Thermo Niton Analyzers LLC Spectroscopie d'emission optique a arc/etincelle correlee avec une localisation d'etincelle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189224A (en) * 1977-10-13 1980-02-19 Ricoh Company, Ltd. Two color electrostatic copying machine
US4264185A (en) * 1978-05-24 1981-04-28 Ricoh Co., Ltd. Two color electrostatographic apparatus
US4335194A (en) * 1978-02-20 1982-06-15 Ricoh Company, Ltd. Two color electrophotographic process and material
US4500616A (en) * 1982-09-20 1985-02-19 Konishiroku Photo Industry Co., Ltd. Extraction developing method for electrostatic latent images
EP0179253A1 (fr) * 1984-09-14 1986-04-30 Kabushiki Kaisha Toshiba Appareil pour la fabrication d'images
WO1987003710A1 (fr) * 1985-12-16 1987-06-18 Eastman Kodak Company Appareil et procede pour la production electrophotographique de tirages a partir d'originaux contenant des informations a tons continus et sous une autre forme
US4720730A (en) * 1984-11-30 1988-01-19 Minolta Camera Kabushiki Kaisha Image forming apparatus with a plurality of developing means

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562129A (en) * 1982-09-28 1985-12-31 Minolta Camera Kabushiki Kaisha Method of forming monochromatic or dichromatic copy images
US4562130A (en) * 1982-09-28 1985-12-31 Minolta Camera Kabushiki Kaisha Method of forming composite images
JPS59101657A (ja) * 1982-12-02 1984-06-12 Minolta Camera Co Ltd ２色画像形成方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189224A (en) * 1977-10-13 1980-02-19 Ricoh Company, Ltd. Two color electrostatic copying machine
US4335194A (en) * 1978-02-20 1982-06-15 Ricoh Company, Ltd. Two color electrophotographic process and material
US4264185A (en) * 1978-05-24 1981-04-28 Ricoh Co., Ltd. Two color electrostatographic apparatus
US4500616A (en) * 1982-09-20 1985-02-19 Konishiroku Photo Industry Co., Ltd. Extraction developing method for electrostatic latent images
EP0179253A1 (fr) * 1984-09-14 1986-04-30 Kabushiki Kaisha Toshiba Appareil pour la fabrication d'images
US4720730A (en) * 1984-11-30 1988-01-19 Minolta Camera Kabushiki Kaisha Image forming apparatus with a plurality of developing means
WO1987003710A1 (fr) * 1985-12-16 1987-06-18 Eastman Kodak Company Appareil et procede pour la production electrophotographique de tirages a partir d'originaux contenant des informations a tons continus et sous une autre forme

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Xerox Disclosure Journal, Vol. 12, No. 3, 1987 (-) Howard M. Stark: "Apparatus for printing black and plural highlight color images in a single pass", page 163-165. *

Also Published As

Publication number Publication date
EP0336962A1 (fr) 1989-10-18
JPH02501509A (ja) 1990-05-24
US4804603A (en) 1989-02-14
WO1989002615A2 (fr) 1989-03-23

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