DE69527812T2 - Elektrophotographisches aufzeichnungsgerät - Google Patents

Elektrophotographisches aufzeichnungsgerät

Info

Publication number
DE69527812T2
DE69527812T2 DE69527812T DE69527812T DE69527812T2 DE 69527812 T2 DE69527812 T2 DE 69527812T2 DE 69527812 T DE69527812 T DE 69527812T DE 69527812 T DE69527812 T DE 69527812T DE 69527812 T2 DE69527812 T2 DE 69527812T2
Authority
DE
Germany
Prior art keywords
electrophotographic recorder
electrophotographic
recorder
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
DE69527812T
Other languages
English (en)
Other versions
DE69527812D1 (de
Inventor
Mamoru Okano
Shinya Kobayashi
Nobuyoshi Hoshi
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.)
Ricoh Printing Systems Ltd
Original Assignee
Hitachi Ltd
Hitachi Koki 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
Application filed by Hitachi Ltd, Hitachi Koki Co Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE69527812D1 publication Critical patent/DE69527812D1/de
Publication of DE69527812T2 publication Critical patent/DE69527812T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/0402—Scanning different formats; Scanning with different densities of dots per unit length, e.g. different numbers of dots per inch (dpi); Conversion of scanning standards
    • H04N1/0408—Different densities of dots per unit length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/0402—Scanning different formats; Scanning with different densities of dots per unit length, e.g. different numbers of dots per inch (dpi); Conversion of scanning standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/0402—Scanning different formats; Scanning with different densities of dots per unit length, e.g. different numbers of dots per inch (dpi); Conversion of scanning standards
    • H04N1/042—Details of the method used
    • H04N1/0426—Details of the method used using different sized scanning elements, e.g. reproducing different sized dots
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/23—Reproducing arrangements
    • H04N1/29—Reproducing arrangements involving production of an electrostatic intermediate picture
    • H04N1/295—Circuits or arrangements for the control thereof, e.g. using a programmed control device, according to a measured quantity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/50—Picture reproducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/113—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors
    • H04N1/1135—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors for the main-scan only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/12—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-scanning

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
DE69527812T 1995-04-26 1995-04-26 Elektrophotographisches aufzeichnungsgerät Expired - Fee Related DE69527812T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1995/000824 WO1996034320A1 (fr) 1995-04-26 1995-04-26 Dispositif d'enregistrement electrophotographique

Publications (2)

Publication Number Publication Date
DE69527812D1 DE69527812D1 (de) 2002-09-19
DE69527812T2 true DE69527812T2 (de) 2003-04-30

Family

ID=14125891

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69527812T Expired - Fee Related DE69527812T2 (de) 1995-04-26 1995-04-26 Elektrophotographisches aufzeichnungsgerät

Country Status (5)

Country Link
US (1) US6067102A (de)
EP (1) EP0825495B1 (de)
JP (1) JP3053115B2 (de)
DE (1) DE69527812T2 (de)
WO (1) WO1996034320A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0989737A3 (de) * 1998-09-21 2003-09-24 Konica Corporation Bildaufzeichnungsvorrichtung
KR100677598B1 (ko) * 2005-06-15 2007-02-02 삼성전자주식회사 멀티패스방식 화상형성장치 및 이를 이용한 화상형성방법
US8561777B2 (en) * 2007-10-23 2013-10-22 Mei, Inc. Coin sensor

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52128021A (en) * 1976-04-21 1977-10-27 Canon Inc Information recording system
JPS568112A (en) * 1979-07-03 1981-01-27 Canon Inc Scanning type image recorder
US4450483A (en) * 1981-09-02 1984-05-22 Westinghouse Electric Corp. Circuit for improving the quality of digitized line images
US4437122A (en) * 1981-09-12 1984-03-13 Xerox Corporation Low resolution raster images
JPS58159551A (ja) * 1982-03-17 1983-09-21 Fujitsu Ltd 多色記録装置
US4847641A (en) * 1988-08-16 1989-07-11 Hewlett-Packard Company Piece-wise print image enhancement for dot matrix printers
DE69027469T2 (de) * 1989-03-20 1996-11-14 Hitachi Ltd Optisches Aufzeichnungssystem
US5077805A (en) * 1990-05-07 1991-12-31 Eastman Kodak Company Hybrid feature-based and template matching optical character recognition system
JPH0456946A (ja) * 1990-06-26 1992-02-24 Ricoh Co Ltd 画像形成装置の光量制御方法
JP2756371B2 (ja) * 1991-01-23 1998-05-25 キヤノン株式会社 画像処理装置
JPH04262660A (ja) * 1991-02-16 1992-09-18 Ricoh Co Ltd 画像認識出力装置
EP0523885A1 (de) * 1991-07-15 1993-01-20 National Semiconductor Corporation Phasendetektor für Hochfrequenz-Takt und Datenrückgewinnungsschaltungen
US5430472A (en) * 1991-07-29 1995-07-04 Xerox Corporation Method and apparatus for eliminating distortion via overscanned illumination for optical printers and the like having high gamma photosensitive recording media and high addressability
JP3246754B2 (ja) * 1991-09-20 2002-01-15 株式会社日立製作所 光記録装置及び情報処理システム
US5438437A (en) * 1991-10-17 1995-08-01 Konica Corporation Image forming apparatus with exposure, size, and position correction for pixels
US5479584A (en) * 1992-08-28 1995-12-26 Xerox Corporation Enhanced fidelity reproduction of images with device independent numerical sample output
US5611023A (en) * 1992-09-02 1997-03-11 Ricoh Company, Ltd. Apparatus and method for processing two-tone image data so as to smooth and magnify image
US5252995A (en) * 1992-09-03 1993-10-12 Hewlett-Packard Company Color boundary enhancement in a multi-color electrostatic printer
US5483351A (en) * 1992-09-25 1996-01-09 Xerox Corporation Dilation of images without resolution conversion to compensate for printer characteristics
US5337136A (en) * 1992-10-23 1994-08-09 Xerox Corporation Tandem trilevel process color printer
US5519426A (en) * 1993-11-01 1996-05-21 Lasermaster Corporation Method for controlling a thermal printer to increase resolution
US5666470A (en) * 1995-06-29 1997-09-09 Xerox Corporation Method and apparatus for appearance tuning of bitmap images
US5841148A (en) * 1996-02-02 1998-11-24 Fuji Photo Film Co., Ltd. Image processing apparatus

Also Published As

Publication number Publication date
US6067102A (en) 2000-05-23
WO1996034320A1 (fr) 1996-10-31
JP3053115B2 (ja) 2000-06-19
EP0825495A1 (de) 1998-02-25
EP0825495A4 (de) 1999-12-29
DE69527812D1 (de) 2002-09-19
EP0825495B1 (de) 2002-08-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HITACHI PRINTING SOLUTIONS LTD., TOKIO/TOKYO, JP

Owner name: HITACHI, LTD., TOKIO/TOKYO, JP

8327 Change in the person/name/address of the patent owner

Owner name: RICOH PRINTING SYSTEMS, LTD., TOKIO/TOKYO, JP

8339 Ceased/non-payment of the annual fee