KR900003782A - 광 주사장치 - Google Patents

광 주사장치 Download PDF

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Publication number
KR900003782A
KR900003782A KR1019890010223A KR890010223A KR900003782A KR 900003782 A KR900003782 A KR 900003782A KR 1019890010223 A KR1019890010223 A KR 1019890010223A KR 890010223 A KR890010223 A KR 890010223A KR 900003782 A KR900003782 A KR 900003782A
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KR
South Korea
Prior art keywords
scanning
clock
main scanning
reflecting surface
optical
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KR1019890010223A
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English (en)
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KR930000022B1 (ko
Inventor
가즈노리 무라가미
야스오 마쓰모도
도모노리 이꾸미
쇼오이찌 사또오
Original Assignee
고바야시 쥰
도오꾜오 덴끼 가부시끼가이샤
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Priority claimed from JP63216074A external-priority patent/JPH0263009A/ja
Priority claimed from JP63216993A external-priority patent/JPH07121591B2/ja
Application filed by 고바야시 쥰, 도오꾜오 덴끼 가부시끼가이샤 filed Critical 고바야시 쥰
Publication of KR900003782A publication Critical patent/KR900003782A/ko
Application granted granted Critical
Publication of KR930000022B1 publication Critical patent/KR930000022B1/ko

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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
    • H04N1/047—Detection, control or error compensation of scanning velocity or position
    • H04N1/053—Detection, control or error compensation of scanning velocity or position in main scanning direction, e.g. synchronisation of line start or picture elements in a line
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
    • G06K15/1204—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers involving the fast moving of an optical beam in the main scanning direction
    • G06K15/1219—Detection, control or error compensation of scanning velocity or position, e.g. synchronisation
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/02406—Arrangements for positioning elements within a head
    • H04N2201/02439—Positioning method
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/0471—Detection of scanning velocity or position using dedicated detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04732—Detecting at infrequent intervals, e.g. once or twice per line for main-scan control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04744—Detection of scanning velocity or position by detecting the scanned beam or a reference beam
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04753—Control or error compensation of scanning position or velocity
    • H04N2201/04758—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area
    • H04N2201/04767—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area by controlling the timing of the signals, e.g. by controlling the frequency o phase of the pixel clock
    • H04N2201/04768—Controlling the frequency of the signals
    • H04N2201/04774—Controlling the frequency of the signals using a reference clock or oscillator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04753—Control or error compensation of scanning position or velocity
    • H04N2201/04758—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area
    • H04N2201/04767—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area by controlling the timing of the signals, e.g. by controlling the frequency o phase of the pixel clock
    • H04N2201/04768—Controlling the frequency of the signals
    • H04N2201/04775—Controlling the frequency of the signals using a counter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04753—Control or error compensation of scanning position or velocity
    • H04N2201/04794—Varying the control or compensation during the scan, e.g. using continuous feedback or from line to line

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Laser Beam Printer (AREA)

Abstract

내용 없음.

Description

광 주사장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 제1의 실시예를 나타내는 회로도.
제2도는 광학적 구조를 나타내는 평면도.
제3도는 본 발명의 제2의 실시예를 나타내는 회로도.
제11도는 인쇄화상의 설명도이다.

Claims (7)

  1. 기준클록의 주파수를 정수로 분주한 인자클록에 동기하여 도트에 의한 화상정보를 출력하는 인자데이타 회로부를 설치하고, 이 인자 데이타 회로부에 접속되어 상기 화상정보에 대응한 레이저광을 발하는 조사광학계를 설정하며, 복수의 반사면이 형성되어 구동원에 의해 정속회전되는 폴리곤미러를 상기 조사광학계의 광축상에 반사면이 위치하도록 배치하고, 이 폴리곤미러로 반사되어 감광체상을 주사하는 레이저광을 스폿트상으로 수속하는 수속광학계를 형성한 광주사장치에 있어서, 레이저 광의 주 주사범위의 개시측에 배치한 스타트 센서부와 종료측에 배치한 엔드센서부에 의해, 상기 레이저광의 주 주사시간을 상기 폴리곤미러의 각 반사면마다 계측하는 주 주사시간측정수단을 설치하고, 이들 계측된 각 주사시간에 근거하여, 일정한 길이의 주 주사선의 주사에 요하는 기준 클록수를 각 반사면마다 산출함과 동시에, 하나의 반사면에 의한 주 주사선의 주사중에 카운트된 기준 클록수와 다른 반사면에 의한 주사중의 기준클록수와의 차이를 각 반사면마다 산출하는 보정클록수 산출수단을 설치하며, 이 보정클록산출수단에 의해 산출된 보정클록을, 각 반사면의 인자 클록중에 분산시키는 주 주사선길이조정수단을 설정한 것을 특징으로하는 광주사장치.
  2. 제1항에 있어서, 광 주사장치의 본체에서, 착탈자재한 엔드센서부를 설치한 것을 특징으로하는 광주사장치.
  3. 제1항에 있어서, 주사속도가 늦은부분의 수정도트의 형상을 주 주사방향에 긴것으로 한것을 특징으로 하는 광주사장치.
  4. 제1항에 있어서, 주사속도가 빠른부분의 수정도트의 형상을 주 주사방향에 짧은 것으로 한 것을 특징으로하는 광주사장치.
  5. 제1항에 있어서, 보정클록산출신호에 의해 산출된 보정클록을 각 반사면의 인자클록중에 균등분산되도록 한것을 특징으로하는 광주사장치.
  6. 기준클록의 주파수를 정수로 분주한 인자클록에 동기하여, 도트에 의한 화상정보를 출력하는 인자데이타 회로부를 설치하고, 이 인자데이타 회로부에 접속되어 상기 화상정보에 대응한 레이저 광을 발하는 조사광하계를 설정하고, 복수의 반사면이 형성된 구동원에 의해 정속회전되는 폴리곤미러를 상기 조사광학계의 광축상에 반사면이 위치하도록 배치하고, 이 폴리곤미러로 반사되어 감광체위를 주사하는 레이저광을 스폿트상으로 수속하는 수속광학계를 형성한 광주사장치에 있어서, 레이저 광의 주 주사범위의 개시측에 비치한 스타트센서부와 종료측에 배치한 앤드센서부에 의해 상기 레이저광의 주 주사시간을 상기 폴리곤미러의 각 반사면마다 계측하는 주 주사시간측정수단을 설정하고, 이들 계측된 각 주 주사시간에 근거하여, 일정길이의 주 주사선의 주사에 요하는 기준 클록수를 각 반사면마다 산출함과 동시에, 하나의 반사면에 의한 주 주사선의 주사중에 카운트된 기준클록수와 다른 반사면에 의한 주사중의 기준클록수와외 차를 각 반사면마다 산출하는 보정 클록수 산출수단을 설치하고, 이 보정클록산출수단에 의해 산출된 각 반사면의 보정클록을 난수회로를 사용하여 인자클록중에 랜덤하게 부산시키는 주 주사선길이 조정수단을 설치한 것을 특징으로하는 광주사장치.
  7. 제6항에 있어서, 일 주 주사중의 주사속도가 균일하게 되도록 각 반사면의 인자클록을 주사속도가 높은 부분일수록 다수의 속도보정클록을 삽입하도록 설정된 주사속도수정수단을 설치한 것을 특징으로하는 광주사장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890010223A 1988-08-30 1989-07-19 광 주사장치 KR930000022B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP63-216074 1988-08-30
JP63216074A JPH0263009A (ja) 1988-08-30 1988-08-30 光走査装置
JP63-216993 1988-08-31
JP63216993A JPH07121591B2 (ja) 1988-08-31 1988-08-31 光走査装置

Publications (2)

Publication Number Publication Date
KR900003782A true KR900003782A (ko) 1990-03-27
KR930000022B1 KR930000022B1 (ko) 1993-01-06

Family

ID=26521218

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890010223A KR930000022B1 (ko) 1988-08-30 1989-07-19 광 주사장치

Country Status (4)

Country Link
US (1) US4962981A (ko)
EP (1) EP0357190B1 (ko)
KR (1) KR930000022B1 (ko)
DE (1) DE68922046T2 (ko)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3887610T2 (de) * 1987-09-22 1994-08-25 Tokyo Electric Co Ltd Hinter einem Objektiv angeordneter optischer Ablenker.
US5153766A (en) * 1987-09-22 1992-10-06 Tokyo Electric Co., Ltd. Postobjective optical scanner
US5204769A (en) * 1987-09-22 1993-04-20 Tokyo Electric Co., Ltd. Postobjective optical deflector
JPH0353212A (ja) * 1989-07-21 1991-03-07 Minolta Camera Co Ltd 光ビーム走査装置
US5450121A (en) * 1991-12-20 1995-09-12 Compaq Computer Corporation Margin control for laser printers
JPH03110512A (ja) * 1989-09-26 1991-05-10 Canon Inc 光ビーム走査装置
JP2779053B2 (ja) * 1990-09-25 1998-07-23 株式会社日立製作所 光走査装置
US5212570A (en) * 1991-06-27 1993-05-18 Xerox Corporation Pixel clock phase locked loop for a laser scanner
US5446556A (en) * 1991-11-07 1995-08-29 Nikon Corporation Video clock signal generator in an optical scanner in which a mask including a linear scale provides timing for controlling the amplitude of a vibrating mirror
EP0541321B1 (en) * 1991-11-07 1999-03-10 Nikon Corporation Video clock signal generator in an optical scan type image input device
US5440673A (en) * 1992-08-24 1995-08-08 Polaroid Corporation Method and apparatus for pixel synchronization
JP3212200B2 (ja) * 1992-11-27 2001-09-25 東芝テック株式会社 光走査装置
JP3315474B2 (ja) * 1993-05-13 2002-08-19 株式会社リコー 画像形成装置
US5991008A (en) * 1997-09-30 1999-11-23 Imation Corp. Scanner facet height error compensation having selective pixel modification
US6419155B1 (en) * 1998-10-29 2002-07-16 Casio Computer Co., Ltd. Laser beam scan type barcode reader and program recording mediums
US6731320B1 (en) * 1999-03-19 2004-05-04 Applied Materials, Inc. Laser pattern generator
US6362847B1 (en) * 1999-06-15 2002-03-26 Lexmark International, Inc. Electronic control arrangement for a laser printer
US6567110B2 (en) * 2001-01-03 2003-05-20 Hewlett-Packard Development Company L.P. System and method for reducing horizontal banding and misregistration between color planes in a color image
US6549225B2 (en) * 2001-02-28 2003-04-15 Lexmark International, Inc. Method of margin alignment and plane-to-plane registration in a tandem color electrophotographic machine
DE60237256D1 (de) * 2001-03-14 2010-09-23 Ricoh Kk Lichtemissionsmodulation mit einem effektiven Verfahren zur Erzeugung von Grautönen in einem Bild
US20030016403A1 (en) * 2001-07-13 2003-01-23 Carlson Gerard J. Characterization of a scan line produced from a facet of a scanning device
US7271824B2 (en) * 2001-09-28 2007-09-18 Ricoh Company, Ltd. Pixel clock generating apparatus, optical writing apparatus using a pixel clock, imaging apparatus, and method for generating pixel clocks
US7256815B2 (en) * 2001-12-20 2007-08-14 Ricoh Company, Ltd. Image forming method, image forming apparatus, optical scan device, and image forming apparatus using the same
GB0220158D0 (en) 2002-08-30 2002-10-09 Renishaw Plc Method of scanning
JP2005308865A (ja) * 2004-04-19 2005-11-04 Brother Ind Ltd 光出射信号出力装置
JP4808004B2 (ja) * 2005-10-26 2011-11-02 株式会社リコー 光学装置、及び画像形成装置
JP7025634B2 (ja) * 2017-11-01 2022-02-25 ミツミ電機株式会社 画像投影装置及び画像投影方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205350A (en) * 1977-03-10 1980-05-27 Xerox Corporation Reproduction scanning system having intermediate storage between input and output scanning stations
US4204233A (en) * 1977-10-31 1980-05-20 Xerox Corporation Electronic facet error correction for laser scanning
JPS5596918A (en) * 1979-01-17 1980-07-23 Canon Inc Two-dimensional scanner
DE3787504T2 (de) * 1986-10-29 1994-05-11 Dainippon Screen Mfg Verfahren und Vorrichtung zur Korrektur des Zitterns eines Polygonspiegels in einem Bildaufzeichungsgerät.
JP2806479B2 (ja) * 1989-05-31 1998-09-30 日立精工株式会社 数値制御基板加工方法及びその装置

Also Published As

Publication number Publication date
EP0357190A2 (en) 1990-03-07
EP0357190B1 (en) 1995-04-05
DE68922046T2 (de) 1996-07-04
EP0357190A3 (en) 1991-09-11
DE68922046D1 (de) 1995-05-11
KR930000022B1 (ko) 1993-01-06
US4962981A (en) 1990-10-16

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