JP6463112B2 - 画像形成装置 - Google Patents

画像形成装置 Download PDF

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Publication number
JP6463112B2
JP6463112B2 JP2014250408A JP2014250408A JP6463112B2 JP 6463112 B2 JP6463112 B2 JP 6463112B2 JP 2014250408 A JP2014250408 A JP 2014250408A JP 2014250408 A JP2014250408 A JP 2014250408A JP 6463112 B2 JP6463112 B2 JP 6463112B2
Authority
JP
Japan
Prior art keywords
current
light
light emission
emission amount
light emitting
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
JP2014250408A
Other languages
English (en)
Japanese (ja)
Other versions
JP2016112686A5 (enExample
JP2016112686A (ja
Inventor
泰和 前田
泰和 前田
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2014250408A priority Critical patent/JP6463112B2/ja
Priority to US14/963,057 priority patent/US9632449B2/en
Publication of JP2016112686A publication Critical patent/JP2016112686A/ja
Publication of JP2016112686A5 publication Critical patent/JP2016112686A5/ja
Application granted granted Critical
Publication of JP6463112B2 publication Critical patent/JP6463112B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G03G15/04—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
    • 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
    • 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
    • H04N1/06—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 cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
    • 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
    • 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
    • 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
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/40037—Circuits exciting or modulating particular heads for reproducing continuous tone value scales the reproducing element being a 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
    • H04N1/46—Colour picture communication systems
    • H04N1/50—Picture reproducers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laser Beam Printer (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Semiconductor Lasers (AREA)
  • Control Or Security For Electrophotography (AREA)
JP2014250408A 2014-12-10 2014-12-10 画像形成装置 Expired - Fee Related JP6463112B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2014250408A JP6463112B2 (ja) 2014-12-10 2014-12-10 画像形成装置
US14/963,057 US9632449B2 (en) 2014-12-10 2015-12-08 Image forming apparatus having controlled light emission using current adjustment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014250408A JP6463112B2 (ja) 2014-12-10 2014-12-10 画像形成装置

Publications (3)

Publication Number Publication Date
JP2016112686A JP2016112686A (ja) 2016-06-23
JP2016112686A5 JP2016112686A5 (enExample) 2018-01-25
JP6463112B2 true JP6463112B2 (ja) 2019-01-30

Family

ID=56111054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014250408A Expired - Fee Related JP6463112B2 (ja) 2014-12-10 2014-12-10 画像形成装置

Country Status (2)

Country Link
US (1) US9632449B2 (enExample)
JP (1) JP6463112B2 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10520848B2 (en) 2017-11-28 2019-12-31 Canon Kabushiki Kaisha Image forming apparatus with variable light emission amounts
JP2019200376A (ja) * 2018-05-18 2019-11-21 キヤノン株式会社 走査装置及び画像形成装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3279413B2 (ja) 1993-11-25 2002-04-30 キヤノン株式会社 画像形成装置
JPH0969662A (ja) * 1995-08-31 1997-03-11 Asahi Optical Co Ltd 光走査装置の光強度変調回路
JP4186563B2 (ja) 2002-09-17 2008-11-26 富士ゼロックス株式会社 光源制御装置
JP2007227638A (ja) * 2006-02-23 2007-09-06 Brother Ind Ltd 光学制御装置
US7995089B2 (en) * 2006-11-16 2011-08-09 Xerox Corporation Motor polygon assembly (MPA) facet reflectivity mapping
JP6157091B2 (ja) * 2011-12-08 2017-07-05 キヤノン株式会社 画像形成装置
JP5848598B2 (ja) * 2011-12-21 2016-01-27 キヤノン株式会社 光走査装置及び画像形成装置
JP6061505B2 (ja) * 2012-06-08 2017-01-18 キヤノン株式会社 光学走査装置及びそれを有する画像形成装置
JP6071258B2 (ja) 2012-06-08 2017-02-01 キヤノン株式会社 画像形成装置
JP6127712B2 (ja) * 2013-05-21 2017-05-17 株式会社リコー 光源駆動回路、光走査装置及び画像形成装置

Also Published As

Publication number Publication date
JP2016112686A (ja) 2016-06-23
US9632449B2 (en) 2017-04-25
US20160170324A1 (en) 2016-06-16

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