DE3777309D1 - Verfahren zur herstellung von positiv/negativbildern und geraet zur elektrophotographischen bildherstellung. - Google Patents

Verfahren zur herstellung von positiv/negativbildern und geraet zur elektrophotographischen bildherstellung.

Info

Publication number
DE3777309D1
DE3777309D1 DE8787308075T DE3777309T DE3777309D1 DE 3777309 D1 DE3777309 D1 DE 3777309D1 DE 8787308075 T DE8787308075 T DE 8787308075T DE 3777309 T DE3777309 T DE 3777309T DE 3777309 D1 DE3777309 D1 DE 3777309D1
Authority
DE
Germany
Prior art keywords
electrophotographic image
image production
negative images
producing positive
images
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 - Lifetime
Application number
DE8787308075T
Other languages
English (en)
Inventor
Masatsugu Nakamura
Ikuo Itoh
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.)
Sharp Corp
Original Assignee
Sharp 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=16692517&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3777309(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sharp Corp filed Critical Sharp Corp
Application granted granted Critical
Publication of DE3777309D1 publication Critical patent/DE3777309D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
DE8787308075T 1986-09-12 1987-09-11 Verfahren zur herstellung von positiv/negativbildern und geraet zur elektrophotographischen bildherstellung. Expired - Lifetime DE3777309D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61216698A JPS6370874A (ja) 1986-09-12 1986-09-12 正転・反転画像形成装置

Publications (1)

Publication Number Publication Date
DE3777309D1 true DE3777309D1 (de) 1992-04-16

Family

ID=16692517

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787308075T Expired - Lifetime DE3777309D1 (de) 1986-09-12 1987-09-11 Verfahren zur herstellung von positiv/negativbildern und geraet zur elektrophotographischen bildherstellung.

Country Status (4)

Country Link
US (1) US4843423A (de)
EP (1) EP0262828B2 (de)
JP (1) JPS6370874A (de)
DE (1) DE3777309D1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5099293A (en) * 1988-12-06 1992-03-24 Minolta Camera Kabushiki Kaisha Image processing apparatus operable analogue and digital copying modes
US5182604A (en) * 1990-03-17 1993-01-26 Canon Kabushiki Kaisha Transfer roller with voltage polarity control
JP3110539B2 (ja) * 1992-02-17 2000-11-20 キヤノン株式会社 画像形成装置
DE69324063T2 (de) * 1992-05-29 1999-09-30 Canon Kk Bilderzeugungsgerät
JPH05346751A (ja) 1992-06-16 1993-12-27 Fujitsu Ltd 画像形成装置
JP3150265B2 (ja) * 1994-03-11 2001-03-26 キヤノン株式会社 画像形成装置
JP3351143B2 (ja) * 1994-12-15 2002-11-25 富士ゼロックス株式会社 画像形成装置
JP3516551B2 (ja) * 1995-05-11 2004-04-05 株式会社リコー 静電画像形成装置
JP2011007919A (ja) * 2009-06-24 2011-01-13 Konica Minolta Business Technologies Inc 電子写真画像形成装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5562438A (en) * 1978-11-02 1980-05-10 Olympus Optical Co Ltd Reversal image pickup apparatus
GB2042746A (en) 1979-02-23 1980-09-24 Savin Corp Multiple Variable Light Source Photographic Printer
DE3442028A1 (de) * 1983-11-17 1985-05-30 Canon K.K., Tokio/Tokyo Geraet zur erzeugung von abbildungen von positiv- und negativ-originalen
JPS6186777A (ja) * 1984-10-03 1986-05-02 Toshiba Corp マイクロフイルム・リ−ダ・プリント装置

Also Published As

Publication number Publication date
US4843423A (en) 1989-06-27
EP0262828B2 (de) 1995-05-24
JPS6370874A (ja) 1988-03-31
EP0262828A1 (de) 1988-04-06
EP0262828B1 (de) 1992-03-11

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8328 Change in the person/name/address of the agent

Free format text: PATENTANWAELTE MUELLER & HOFFMANN, 81667 MUENCHEN

8339 Ceased/non-payment of the annual fee