DE3768821D1 - Automatische bilddichten-regulierungseinrichtung. - Google Patents

Automatische bilddichten-regulierungseinrichtung.

Info

Publication number
DE3768821D1
DE3768821D1 DE8787101239T DE3768821T DE3768821D1 DE 3768821 D1 DE3768821 D1 DE 3768821D1 DE 8787101239 T DE8787101239 T DE 8787101239T DE 3768821 T DE3768821 T DE 3768821T DE 3768821 D1 DE3768821 D1 DE 3768821D1
Authority
DE
Germany
Prior art keywords
image density
automatic image
density regulator
regulator
automatic
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
DE8787101239T
Other languages
English (en)
Inventor
Hidechika Kumamoto
Satoshi Kuroyanagi
Setsuo Hori
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.)
Kyocera Mita Industrial Co Ltd
Original Assignee
Mita Industrial Co Ltd
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=12039413&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3768821(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mita Industrial Co Ltd filed Critical Mita Industrial Co Ltd
Application granted granted Critical
Publication of DE3768821D1 publication Critical patent/DE3768821D1/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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5025—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the original characteristics, e.g. contrast, density

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
DE8787101239T 1986-01-31 1987-01-29 Automatische bilddichten-regulierungseinrichtung. Expired - Lifetime DE3768821D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61020877A JPS62178231A (ja) 1986-01-31 1986-01-31 自動露光制御方法

Publications (1)

Publication Number Publication Date
DE3768821D1 true DE3768821D1 (de) 1991-05-02

Family

ID=12039413

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787101239T Expired - Lifetime DE3768821D1 (de) 1986-01-31 1987-01-29 Automatische bilddichten-regulierungseinrichtung.

Country Status (4)

Country Link
US (1) US4812881A (de)
EP (1) EP0232805B1 (de)
JP (1) JPS62178231A (de)
DE (1) DE3768821D1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335364B1 (de) * 1988-03-29 1993-11-03 Sharp Kabushiki Kaisha Bildverarbeitungsgerät
JP2685099B2 (ja) * 1988-07-29 1997-12-03 富士写真フイルム株式会社 複写装置
JP2977859B2 (ja) * 1989-07-18 1999-11-15 コニカ株式会社 ページ連写機能付き像形成装置
JPH03263056A (ja) * 1990-03-13 1991-11-22 Canon Inc 自動シート送り装置
JPH043279A (ja) * 1990-04-20 1992-01-08 Canon Inc 画像読み取り装置
JPH04331562A (ja) * 1990-07-31 1992-11-19 Xerox Corp 文書複写機
TWI389546B (zh) * 2009-01-16 2013-03-11 Genesys Logic Inc 具有亮度補償功能的掃描系統及其方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597074A (en) * 1968-07-18 1971-08-03 Icp Inc Combination sheet and book copy machine
GB1436899A (en) * 1973-05-23 1976-05-26 Xerox Corp Document copying apparatus
US4226525A (en) * 1976-10-19 1980-10-07 Ricoh Company, Ltd. Electrostatic copying machine
JPS5436725A (en) * 1977-08-26 1979-03-17 Ricoh Co Ltd Zerographic copying method
JPS5753769A (ja) * 1980-09-17 1982-03-30 Mita Ind Co Ltd Seidenshashinfukushaki
JPS5953827A (ja) 1982-09-22 1984-03-28 Toshiba Corp 複写装置
JPS59135488A (ja) * 1983-01-24 1984-08-03 Canon Inc 画像形成装置
DE3406568A1 (de) * 1983-02-25 1984-08-30 Canon K.K., Tokio/Tokyo Bilderzeugungsgeraet
JPS6031132A (ja) * 1983-07-30 1985-02-16 Mita Ind Co Ltd 自動露光装置
US4627712A (en) * 1983-08-06 1986-12-09 Canon Kabushiki Kaisha Image density control apparatus
JPS6163833A (ja) * 1984-09-05 1986-04-02 Toshiba Corp 画像形成装置

Also Published As

Publication number Publication date
EP0232805A1 (de) 1987-08-19
US4812881A (en) 1989-03-14
EP0232805B1 (de) 1991-03-27
JPS62178231A (ja) 1987-08-05

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee