JP6459076B2 - 光走査装置及び画像形成装置 - Google Patents
光走査装置及び画像形成装置 Download PDFInfo
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- JP6459076B2 JP6459076B2 JP2016245017A JP2016245017A JP6459076B2 JP 6459076 B2 JP6459076 B2 JP 6459076B2 JP 2016245017 A JP2016245017 A JP 2016245017A JP 2016245017 A JP2016245017 A JP 2016245017A JP 6459076 B2 JP6459076 B2 JP 6459076B2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
- B41J2/447—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources
- B41J2/45—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources using light-emitting diode [LED] or laser arrays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
- B41J2/47—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light
- B41J2/471—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light using dot sequential main scanning by means of a light deflector, e.g. a rotating polygonal mirror
- B41J2/473—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light using dot sequential main scanning by means of a light deflector, e.g. a rotating polygonal mirror using multiple light beams, wavelengths or colours
-
- 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
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/04036—Details of illuminating systems, e.g. lamps, reflectors
- G03G15/04045—Details of illuminating systems, e.g. lamps, reflectors for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers
- G03G15/04072—Details of illuminating systems, e.g. lamps, reflectors for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers by laser
-
- 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
- G03G15/32—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head
- G03G15/326—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head by application of light, e.g. using a LED array
-
- 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
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/03—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array
- H04N1/031—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array the photodetectors having a one-to-one and optically positive correspondence with the scanned picture elements, e.g. linear contact sensors
- H04N1/0311—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array the photodetectors having a one-to-one and optically positive correspondence with the scanned picture elements, e.g. linear contact sensors using an array of elements to project the scanned image elements onto the photodetectors
-
- 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
-
- 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
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/043—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
- G03G15/0435—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure by introducing an optical element in the optical path, e.g. a filter
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/04—Arrangements for exposing and producing an image
- G03G2215/0402—Exposure devices
- G03G2215/0404—Laser
-
- 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
- H04N1/121—Feeding arrangements
-
- 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
- H04N2201/028—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted for picture information pick-up
- H04N2201/03—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted for picture information pick-up deleted
- H04N2201/031—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted for picture information pick-up deleted deleted
- H04N2201/03104—Integral pick-up heads, i.e. self-contained heads whose basic elements are a light source, a lens and a photodetector supported by a single-piece frame
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Laser Beam Printer (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Facsimile Scanning Arrangements (AREA)
- Semiconductor Lasers (AREA)
Description
Claims (8)
- 光によって被走査面を走査する光走査装置であって、
複数の発光部が2次元配列されている面発光レーザアレイと、
前記複数の発光部からの光を前記被走査面に向けて偏向する偏向器と、を備え、
前記複数の発光部を副走査方向に対応する方向に延びる仮想線上に正射影したときに前記複数の発光部は互いに異なる位置にあり、
前記複数の発光部は、8個以上の偶数個の発光部であり、第1の発光部と、前記正射影したときに前記第1の発光部に隣接する第2の発光部と、前記正射影したときに前記第2の発光部に隣接する第3の発光部とを含み、前記正射影したときに、前記第1の発光部と前記第2の発光部の間隔は、前記第2の発光部と前記第3の発光部の間隔と異なり、
前記第1〜第3の発光部は、前記副走査方向に対応する方向に関して前記2次元配列の中央部に配置され、
前記副走査方向に対応する方向に関して両端に位置する2つの発光部は、いずれも前記副走査方向に対応する方向に直交する方向に関しては、両端を除く位置に配置されている光走査装置。 - 前記第2の発光部と前記第3の発光部は、前記副走査方向に対応する方向に直交する方向に関して前記2次元配列の両端近傍に配置され、
前記副走査方向に対応する方向に関して、前記第2の発光部と前記第3の発光部の間隔は、前記第1の発光部と前記第2の発光部の間隔よりも狭いことを特徴とする請求項1に記載の光走査装置。 - 前記第2の発光部と前記第3の発光部は、前記副走査方向に対応する方向に直交する方向に関して前記2次元配列の両端近傍に配置され、
前記副走査方向に対応する方向に関して、前記第2の発光部と前記第3の発光部の間隔は、前記第1の発光部と前記第2の発光部の間隔よりも広いことを特徴とする請求項1に記載の光走査装置。 - 前記複数の発光部は、前記副走査方向に対応する方向に平行な方向に配置される少なくとも4つの発光部から成る発光部列を有し、
前記発光部列における前記2次元配列の中央部で隣り合う2つの発光部の間隔は、前記発光部列における前記中央部よりも前記2次元配列の端側で隣り合う2つの発光部の間隔よりも広いことを特徴とする請求項1に記載の光走査装置。 - 前記複数の発光部は、前記副走査方向に対応する方向に平行な方向に配置される少なくとも2つの発光部からそれぞれが成り、前記副走査方向に対応する方向に交差する方向に配置される少なくとも4つの発光部列を有し、
前記2次元配列の中央部で隣り合う2つの前記発光部列の間隔は、前記中央部よりも前記2次元配列の端側で隣り合う2つの前記発光部列の間隔よりも広いことを特徴とする請求項1に記載の光走査装置。 - 前記複数の発光部は、前記副走査方向に対応する方向に平行な方向に配置される少なくとも2つの発光部をそれぞれが含み、前記副走査方向に対応する方向に交差する方向に配置される複数の発光部列を有し、
前記発光部列の数は、1つの発光部列を構成する発光部の数よりも多いことを特徴とする請求項1に記載の光走査装置。 - 前記偏向器で偏向された光を前記被走査面上に集光する走査光学系を更に備えることを特徴とする請求項1〜6のいずれか一項に記載の光走査装置。
- 像担持体と、
前記像担持体に対して画像情報が含まれる光を走査する少なくとも1つの請求項1〜7のいずれか一項に記載の光走査装置と、を備える画像形成装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2007184190 | 2007-07-13 | ||
JP2007184190 | 2007-07-13 |
Related Parent Applications (1)
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JP2014148430A Division JP2014240967A (ja) | 2007-07-13 | 2014-07-22 | 面発光レーザアレイ、光走査装置及び画像形成装置 |
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JP2018200197A Division JP6660570B2 (ja) | 2007-07-13 | 2018-10-24 | 面発光レーザ、面発光レーザ装置及び光走査装置 |
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JP2017072851A JP2017072851A (ja) | 2017-04-13 |
JP6459076B2 true JP6459076B2 (ja) | 2019-01-30 |
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JP2013002461A Expired - Fee Related JP5582460B2 (ja) | 2007-07-13 | 2013-01-10 | 面発光レーザアレイ、光走査装置及び画像形成装置 |
JP2014148430A Pending JP2014240967A (ja) | 2007-07-13 | 2014-07-22 | 面発光レーザアレイ、光走査装置及び画像形成装置 |
JP2016245017A Expired - Fee Related JP6459076B2 (ja) | 2007-07-13 | 2016-12-19 | 光走査装置及び画像形成装置 |
JP2018200197A Expired - Fee Related JP6660570B2 (ja) | 2007-07-13 | 2018-10-24 | 面発光レーザ、面発光レーザ装置及び光走査装置 |
JP2020018393A Active JP7056678B2 (ja) | 2007-07-13 | 2020-02-06 | 面発光レーザ、面発光レーザ装置、光走査装置及び画像形成装置 |
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JP2014148430A Pending JP2014240967A (ja) | 2007-07-13 | 2014-07-22 | 面発光レーザアレイ、光走査装置及び画像形成装置 |
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JP2020018393A Active JP7056678B2 (ja) | 2007-07-13 | 2020-02-06 | 面発光レーザ、面発光レーザ装置、光走査装置及び画像形成装置 |
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JP5582460B2 (ja) * | 2007-07-13 | 2014-09-03 | 株式会社リコー | 面発光レーザアレイ、光走査装置及び画像形成装置 |
JP6690657B2 (ja) | 2016-02-09 | 2020-04-28 | 株式会社リコー | 画像表示装置及び画像表示方法 |
WO2020027296A1 (ja) * | 2018-08-02 | 2020-02-06 | ローム株式会社 | 面発光レーザ装置 |
Family Cites Families (23)
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JPS59175174A (ja) * | 1983-03-25 | 1984-10-03 | Hitachi Ltd | 発光ダイオ−ド・アレイ |
EP0719434B1 (de) * | 1993-09-15 | 1997-07-23 | Océ Printing Systems GmbH | Anordnung zur erzeugung eines rasterbildes auf einem lichtempfindlichen aufzeichunungsträger |
JPH07111559A (ja) * | 1993-10-13 | 1995-04-25 | Dainippon Screen Mfg Co Ltd | 画像露光装置および画像露光方法 |
US6144685A (en) * | 1996-01-23 | 2000-11-07 | Fuji Xerox Co., Ltd. | Two-dimensional surface emitting laser array, two-dimensional surface emitting laser beam scanner, two-dimensional surface emitting laser beam recorder, and two-dimensional surface emitting laser beam recording method |
JP3697821B2 (ja) * | 1997-03-10 | 2005-09-21 | コニカミノルタビジネステクノロジーズ株式会社 | 光ビーム走査光学装置 |
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JP2002127493A (ja) * | 2000-10-19 | 2002-05-08 | Fuji Xerox Co Ltd | 画像形成装置 |
JP2001358411A (ja) * | 2001-04-13 | 2001-12-26 | Fuji Xerox Co Ltd | 2次元面発光レーザアレイ、2次元面発光レーザビームスキャナ、および2次元面発光レーザビーム記録装置および方法 |
JP2002347270A (ja) * | 2001-05-23 | 2002-12-04 | Konica Corp | 画像形成装置の画像ムラ軽減方法及び画像ムラ軽減装置 |
KR100525785B1 (ko) * | 2001-06-15 | 2005-11-03 | 엘지전자 주식회사 | 이미지 화소 필터링 방법 |
JP4363015B2 (ja) * | 2002-09-19 | 2009-11-11 | 富士ゼロックス株式会社 | 光走査装置 |
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JP4680604B2 (ja) * | 2005-01-05 | 2011-05-11 | 株式会社リコー | 光走査装置および画像形成装置 |
JP4548160B2 (ja) * | 2005-03-15 | 2010-09-22 | 富士ゼロックス株式会社 | 光走査装置 |
JP4539401B2 (ja) | 2005-03-28 | 2010-09-08 | 富士ゼロックス株式会社 | 光走査装置および画像形成装置 |
JP4530922B2 (ja) * | 2005-06-20 | 2010-08-25 | 株式会社リコー | 光走査装置および画像形成装置 |
JP4876480B2 (ja) * | 2005-08-18 | 2012-02-15 | 富士ゼロックス株式会社 | 面発光型半導体レーザアレイ |
EP1770836B1 (de) * | 2005-09-29 | 2015-04-22 | OSRAM Opto Semiconductors GmbH | Laserdiodenvorrichtung, Laseranordnung mit mindestens einer Laserdiodevorrichtung und optisch gepumpter Laser |
US7466331B2 (en) * | 2005-12-07 | 2008-12-16 | Palo Alto Research Center Incorporated | Bow-free telecentric optical system for multiple beam scanning systems |
JP5224159B2 (ja) * | 2006-04-28 | 2013-07-03 | 株式会社リコー | 面発光レーザアレイ、光走査装置及び画像形成装置 |
JP5582460B2 (ja) | 2007-07-13 | 2014-09-03 | 株式会社リコー | 面発光レーザアレイ、光走査装置及び画像形成装置 |
-
2013
- 2013-01-10 JP JP2013002461A patent/JP5582460B2/ja not_active Expired - Fee Related
-
2014
- 2014-07-22 JP JP2014148430A patent/JP2014240967A/ja active Pending
-
2016
- 2016-12-19 JP JP2016245017A patent/JP6459076B2/ja not_active Expired - Fee Related
-
2018
- 2018-10-24 JP JP2018200197A patent/JP6660570B2/ja not_active Expired - Fee Related
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2020
- 2020-02-06 JP JP2020018393A patent/JP7056678B2/ja active Active
Also Published As
Publication number | Publication date |
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JP2019061245A (ja) | 2019-04-18 |
JP6660570B2 (ja) | 2020-03-11 |
JP2014240967A (ja) | 2014-12-25 |
JP2020106843A (ja) | 2020-07-09 |
JP7056678B2 (ja) | 2022-04-19 |
JP5582460B2 (ja) | 2014-09-03 |
JP2013122600A (ja) | 2013-06-20 |
JP2017072851A (ja) | 2017-04-13 |
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