HK1011782A1 - Laser scanner control circuit which is used in image forming apparatus - Google Patents

Laser scanner control circuit which is used in image forming apparatus

Info

Publication number
HK1011782A1
HK1011782A1 HK98112747A HK98112747A HK1011782A1 HK 1011782 A1 HK1011782 A1 HK 1011782A1 HK 98112747 A HK98112747 A HK 98112747A HK 98112747 A HK98112747 A HK 98112747A HK 1011782 A1 HK1011782 A1 HK 1011782A1
Authority
HK
Hong Kong
Prior art keywords
control circuit
image forming
forming apparatus
laser scanner
scanner control
Prior art date
Application number
HK98112747A
Other languages
English (en)
Inventor
Takashi Soya
Takashi Nakahara
Akihiro Shibata
Hidenobu Suzuki
Original Assignee
Canon Kk
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
Priority claimed from JP03071699A external-priority patent/JP3143486B2/ja
Priority claimed from JP3071701A external-priority patent/JPH04307570A/ja
Application filed by Canon Kk filed Critical Canon Kk
Publication of HK1011782A1 publication Critical patent/HK1011782A1/xx

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G02B26/127—Adaptive control of the scanning light beam, e.g. using the feedback from one or more detectors
    • 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
    • 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
    • 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
    • G06K15/1209—Intensity control of the optical beam
    • G06K15/1214—Intensity control of the optical beam by feedback

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Laser Beam Printer (AREA)
  • Semiconductor Lasers (AREA)
  • Facsimile Scanning Arrangements (AREA)
HK98112747A 1991-04-04 1998-12-03 Laser scanner control circuit which is used in image forming apparatus HK1011782A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP03071699A JP3143486B2 (ja) 1991-04-04 1991-04-04 モノリシックドライバーｉｃ及び画像形成装置
JP3071701A JPH04307570A (ja) 1991-04-04 1991-04-04 レーザ記録装置のレーザスキヤナ制御回路

Publications (1)

Publication Number Publication Date
HK1011782A1 true HK1011782A1 (en) 1999-07-16

Family

ID=26412813

Family Applications (2)

Application Number Title Priority Date Filing Date
HK98112628A HK1011776A1 (en) 1991-04-04 1998-12-01 Image forming apparatus and driver ic for use in such an apparatus
HK98112747A HK1011782A1 (en) 1991-04-04 1998-12-03 Laser scanner control circuit which is used in image forming apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
HK98112628A HK1011776A1 (en) 1991-04-04 1998-12-01 Image forming apparatus and driver ic for use in such an apparatus

Country Status (5)

Country Link
US (2) US5504517A (xx)
EP (2) EP0775968B1 (xx)
KR (1) KR950009695B1 (xx)
DE (2) DE69230078T2 (xx)
HK (2) HK1011776A1 (xx)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69225664T2 (de) * 1991-10-08 1998-12-03 Canon Kk Verfahren zum kontrollieren eines Bilderzeugungsgeräts
JPH07314775A (ja) * 1994-05-24 1995-12-05 Canon Inc 発光光量の調整装置及びその方法
JPH0818746A (ja) * 1994-06-27 1996-01-19 Fuji Xerox Co Ltd 画像出力装置
JP3539604B2 (ja) * 1996-03-13 2004-07-07 ローム株式会社 モータ駆動回路
JPH1093170A (ja) * 1996-09-10 1998-04-10 Fuji Xerox Co Ltd レーザダイオード駆動回路、レーザダイオード駆動用半導体集積回路、および画像記録装置
US6154292A (en) * 1997-02-14 2000-11-28 Konica Corporation Multi-beam scanning method and control apparatus for the same
JP3610180B2 (ja) 1997-02-18 2005-01-12 キヤノン株式会社 画像形成装置およびその方法
JP3787449B2 (ja) 1998-01-14 2006-06-21 キヤノン株式会社 アナログ信号処理回路
JP4148485B2 (ja) * 1998-10-05 2008-09-10 キヤノン株式会社 画像形成装置、及び複写機
JP2000218865A (ja) 1998-11-25 2000-08-08 Canon Inc レ―ザ駆動装置とその駆動方法及びそれを用いた画像形成装置
JP3352413B2 (ja) 1998-12-17 2002-12-03 キヤノン株式会社 画像形成装置
JP2001028893A (ja) * 1999-07-12 2001-01-30 Fanuc Ltd モータ制御装置
US6459443B1 (en) 2001-06-21 2002-10-01 Lexmark International, Inc Method of minimizing print delay due to mirror motor warm-up in an electrophotographic machine
KR100438727B1 (ko) * 2002-07-18 2004-07-05 삼성전자주식회사 컬러 화상 형성을 위한 스캐닝 속도 및 광량 제어 방법 및장치
KR100472474B1 (ko) * 2002-08-30 2005-03-10 삼성전자주식회사 전자사진 프로세서의 현상제 절약방법 및 이를 수행하는전자사진 프로세서
JP2007038650A (ja) * 2005-06-30 2007-02-15 Brother Ind Ltd 画像形成装置
US7561176B2 (en) * 2006-08-31 2009-07-14 Lexmark International, Inc. Laser power compensation in a scanning electrophotographic device
CN102486407B (zh) * 2010-12-27 2013-12-11 北京国科世纪激光技术有限公司 激光能量计及其自动休眠与唤醒方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5337029A (en) * 1976-09-17 1978-04-05 Canon Inc Beam recorder
JPS58106622A (ja) * 1981-12-18 1983-06-25 Casio Comput Co Ltd 電源制御方式
JPS5967772A (ja) * 1982-08-31 1984-04-17 Canon Inc ビーム記録装置
DE3419288A1 (de) * 1984-05-23 1985-11-28 Mergenthaler Linotype Gmbh, 6236 Eschborn Verfahren und vorrichtung zum synchronisieren einer materialbahn, insbesondere fotosensitiver materialbahn in einem fotosetzverfahren
JPS6189765A (ja) * 1984-10-08 1986-05-07 Fuji Photo Film Co Ltd 記録走査装置
JPS61277255A (ja) * 1985-05-31 1986-12-08 Toshiba Corp レ−ザプリンタ
JPH0422600Y2 (xx) * 1985-07-02 1992-05-25
US4727382A (en) * 1985-11-15 1988-02-23 Asahi Kogaku Kogyo Kabushiki Kaisha Intensity control for a semiconductor laser of a laser beam printer
JPS63136875A (ja) * 1986-11-28 1988-06-09 Ricoh Co Ltd 画像形成装置
JP2715411B2 (ja) * 1987-05-19 1998-02-18 ミノルタ株式会社 レーザプリンタ
JPH01202774A (ja) * 1988-02-09 1989-08-15 Hitachi Ltd レーザプリンタ装置
JP2669531B2 (ja) * 1988-04-27 1997-10-29 富士写真フイルム株式会社 光ビーム記録装置
JPH02256257A (ja) * 1989-03-29 1990-10-17 Mita Ind Co Ltd 半導体集積回路
US5083140A (en) * 1990-04-10 1992-01-21 Minnesota Mining And Manufacturing Company Multiple charge images initiation with scan synchronization
US5196942A (en) * 1990-09-17 1993-03-23 Xerox Corporation System and method for determining picture element values
US5241330A (en) * 1990-10-02 1993-08-31 Dainippon Screen Mfg. Co., Ltd. Beam recording with scanning speed change due to F.θ lens characteristics
US5296942A (en) * 1991-01-09 1994-03-22 Nippondenso Co., Ltd. Method and apparatus for inspecting lightness on the surface of an object

Also Published As

Publication number Publication date
US5677723A (en) 1997-10-14
EP0507298B1 (en) 1999-10-06
KR950009695B1 (ko) 1995-08-26
KR920020357A (ko) 1992-11-21
HK1011776A1 (en) 1999-07-16
DE69230078D1 (de) 1999-11-11
EP0775968B1 (en) 1999-07-21
EP0507298A2 (en) 1992-10-07
DE69230078T2 (de) 2000-04-06
US5504517A (en) 1996-04-02
EP0775968A2 (en) 1997-05-28
DE69229646T2 (de) 2000-04-13
EP0507298A3 (en) 1993-07-28
EP0775968A3 (en) 1997-09-03
DE69229646D1 (de) 1999-08-26

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20080402