JP7738508B2 - 画像形成装置 - Google Patents

画像形成装置

Info

Publication number
JP7738508B2
JP7738508B2 JP2022048421A JP2022048421A JP7738508B2 JP 7738508 B2 JP7738508 B2 JP 7738508B2 JP 2022048421 A JP2022048421 A JP 2022048421A JP 2022048421 A JP2022048421 A JP 2022048421A JP 7738508 B2 JP7738508 B2 JP 7738508B2
Authority
JP
Japan
Prior art keywords
light
dot
image
light intensity
correction value
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.)
Active
Application number
JP2022048421A
Other languages
English (en)
Japanese (ja)
Other versions
JP2023141873A (ja
Inventor
泰友 古田
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 JP2022048421A priority Critical patent/JP7738508B2/ja
Priority to US18/119,999 priority patent/US12158709B2/en
Priority to CN202310302874.1A priority patent/CN116804838A/zh
Publication of JP2023141873A publication Critical patent/JP2023141873A/ja
Priority to US18/930,381 priority patent/US12510841B2/en
Priority to JP2025144807A priority patent/JP2025172129A/ja
Application granted granted Critical
Publication of JP7738508B2 publication Critical patent/JP7738508B2/ja
Priority to US19/399,039 priority patent/US20260118796A1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • G03G15/04027—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 and forming half-tone image
    • 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
    • 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
    • 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
    • G03G15/04054—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 LED arrays
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Facsimile Heads (AREA)
JP2022048421A 2022-03-24 2022-03-24 画像形成装置 Active JP7738508B2 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2022048421A JP7738508B2 (ja) 2022-03-24 2022-03-24 画像形成装置
US18/119,999 US12158709B2 (en) 2022-03-24 2023-03-10 Image forming apparatus including exposure head provided with plurality of light emitting chips
CN202310302874.1A CN116804838A (zh) 2022-03-24 2023-03-23 图像形成装置
US18/930,381 US12510841B2 (en) 2022-03-24 2024-10-29 Image forming apparatus including exposure head provided with plurality of light emitting chips
JP2025144807A JP2025172129A (ja) 2022-03-24 2025-09-01 画像形成装置
US19/399,039 US20260118796A1 (en) 2022-03-24 2025-11-24 Image forming apparatus including exposure head provided with plurality of light emitting chips

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022048421A JP7738508B2 (ja) 2022-03-24 2022-03-24 画像形成装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2025144807A Division JP2025172129A (ja) 2022-03-24 2025-09-01 画像形成装置

Publications (2)

Publication Number Publication Date
JP2023141873A JP2023141873A (ja) 2023-10-05
JP7738508B2 true JP7738508B2 (ja) 2025-09-12

Family

ID=88079046

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2022048421A Active JP7738508B2 (ja) 2022-03-24 2022-03-24 画像形成装置
JP2025144807A Pending JP2025172129A (ja) 2022-03-24 2025-09-01 画像形成装置

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2025144807A Pending JP2025172129A (ja) 2022-03-24 2025-09-01 画像形成装置

Country Status (3)

Country Link
US (3) US12158709B2 (https=)
JP (2) JP7738508B2 (https=)
CN (1) CN116804838A (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7738509B2 (ja) 2022-03-24 2025-09-12 キヤノン株式会社 画像形成装置
JP7514370B2 (ja) * 2022-08-23 2024-07-10 キヤノン株式会社 画像形成装置
JP7644737B2 (ja) * 2022-08-31 2025-03-12 キヤノン株式会社 画像形成装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004188849A (ja) 2002-12-12 2004-07-08 Kyocera Mita Corp 画像形成装置
JP2006123391A (ja) 2004-10-29 2006-05-18 Fuji Xerox Co Ltd 画像形成装置、および画像形成方法
JP2010179466A (ja) 2009-02-03 2010-08-19 Seiko Epson Corp 画像形成装置および画像形成方法
JP2017078751A (ja) 2015-10-19 2017-04-27 キヤノン株式会社 画像形成装置および画像形成装置における濃度補正方法
JP2020001243A (ja) 2018-06-27 2020-01-09 キヤノン株式会社 画像形成装置
JP2020001240A (ja) 2018-06-27 2020-01-09 キヤノン株式会社 画像形成装置
JP2020129729A (ja) 2019-02-07 2020-08-27 キヤノン株式会社 画像形成装置とその制御方法、及びプログラム

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018001679A (ja) 2016-07-06 2018-01-11 富士ゼロックス株式会社 画像形成装置
JP2018056757A (ja) * 2016-09-28 2018-04-05 株式会社リコー 画像処理装置、駆動制御装置、光源制御装置、画像形成装置および画像処理方法
JP7558650B2 (ja) * 2019-08-23 2024-10-01 キヤノン株式会社 画像形成装置
US11036158B1 (en) * 2020-09-18 2021-06-15 Toshiba Tec Kabushiki Kaisha Image forming apparatus which controls time interval between first and second image data based on print head emission time
JP7592483B2 (ja) * 2020-12-18 2024-12-02 キヤノン株式会社 画像形成装置
JP7676262B2 (ja) * 2021-08-10 2025-05-14 キヤノン株式会社 画像形成装置
JP7738509B2 (ja) 2022-03-24 2025-09-12 キヤノン株式会社 画像形成装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004188849A (ja) 2002-12-12 2004-07-08 Kyocera Mita Corp 画像形成装置
JP2006123391A (ja) 2004-10-29 2006-05-18 Fuji Xerox Co Ltd 画像形成装置、および画像形成方法
JP2010179466A (ja) 2009-02-03 2010-08-19 Seiko Epson Corp 画像形成装置および画像形成方法
JP2017078751A (ja) 2015-10-19 2017-04-27 キヤノン株式会社 画像形成装置および画像形成装置における濃度補正方法
JP2020001243A (ja) 2018-06-27 2020-01-09 キヤノン株式会社 画像形成装置
JP2020001240A (ja) 2018-06-27 2020-01-09 キヤノン株式会社 画像形成装置
JP2020129729A (ja) 2019-02-07 2020-08-27 キヤノン株式会社 画像形成装置とその制御方法、及びプログラム

Also Published As

Publication number Publication date
JP2025172129A (ja) 2025-11-20
CN116804838A (zh) 2023-09-26
US12510841B2 (en) 2025-12-30
US20260118796A1 (en) 2026-04-30
US20250053112A1 (en) 2025-02-13
US20230305426A1 (en) 2023-09-28
JP2023141873A (ja) 2023-10-05
US12158709B2 (en) 2024-12-03

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