JP7434024B2 - 画像形成装置 - Google Patents

画像形成装置 Download PDF

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Publication number
JP7434024B2
JP7434024B2 JP2020059907A JP2020059907A JP7434024B2 JP 7434024 B2 JP7434024 B2 JP 7434024B2 JP 2020059907 A JP2020059907 A JP 2020059907A JP 2020059907 A JP2020059907 A JP 2020059907A JP 7434024 B2 JP7434024 B2 JP 7434024B2
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JP
Japan
Prior art keywords
sheet
image
image forming
color
reading
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
JP2020059907A
Other languages
English (en)
Japanese (ja)
Other versions
JP2021157140A (ja
JP2021157140A5 (https=
Inventor
直人 徳間
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 JP2020059907A priority Critical patent/JP7434024B2/ja
Priority to US17/209,339 priority patent/US11496640B2/en
Publication of JP2021157140A publication Critical patent/JP2021157140A/ja
Publication of JP2021157140A5 publication Critical patent/JP2021157140A5/ja
Application granted granted Critical
Publication of JP7434024B2 publication Critical patent/JP7434024B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
    • H04N1/00742—Detection methods
    • H04N1/00748—Detecting edges, e.g. of a stationary sheet
    • 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
    • H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
    • H04N1/00684—Object of the detection
    • H04N1/00708—Size or dimensions
    • H04N1/00713—Length
    • 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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5025—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the original characteristics, e.g. contrast, density
    • 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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5054—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the characteristics of an intermediate image carrying member or the characteristics of an image on an intermediate image carrying member, e.g. intermediate transfer belt or drum, conveyor belt
    • 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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5062—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the characteristics of an image on the copy material

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Color Electrophotography (AREA)
  • Color Image Communication Systems (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP2020059907A 2020-03-30 2020-03-30 画像形成装置 Active JP7434024B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2020059907A JP7434024B2 (ja) 2020-03-30 2020-03-30 画像形成装置
US17/209,339 US11496640B2 (en) 2020-03-30 2021-03-23 Image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2020059907A JP7434024B2 (ja) 2020-03-30 2020-03-30 画像形成装置

Publications (3)

Publication Number Publication Date
JP2021157140A JP2021157140A (ja) 2021-10-07
JP2021157140A5 JP2021157140A5 (https=) 2023-03-22
JP7434024B2 true JP7434024B2 (ja) 2024-02-20

Family

ID=77856638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2020059907A Active JP7434024B2 (ja) 2020-03-30 2020-03-30 画像形成装置

Country Status (2)

Country Link
US (1) US11496640B2 (https=)
JP (1) JP7434024B2 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11611672B2 (en) * 2021-01-26 2023-03-21 Canon Kabushiki Kaisha Technique for cooperation between plurality of separate controllers provided in image forming apparatus
JP7699967B2 (ja) * 2021-06-07 2025-06-30 キヤノン株式会社 画像形成装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013054324A (ja) 2011-09-06 2013-03-21 Canon Inc 画像形成装置
JP2014134633A (ja) 2013-01-09 2014-07-24 Sharp Corp 画像形成装置
JP2014219525A (ja) 2013-05-08 2014-11-20 シャープ株式会社 画像形成装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5896206A (en) * 1996-09-13 1999-04-20 Hewlett-Packard Company Combination printer and scanner having single paper path with pinch rollers actuated by pen door
JP2009053346A (ja) 2007-08-24 2009-03-12 Konica Minolta Business Technologies Inc 画像形成装置
WO2013035565A1 (en) 2011-09-06 2013-03-14 Canon Kabushiki Kaisha Image forming apparatus
JP7140592B2 (ja) * 2018-07-30 2022-09-21 キヤノン株式会社 測定装置、画像形成装置
JP7175684B2 (ja) * 2018-09-13 2022-11-21 キヤノン株式会社 測定装置及び画像形成システム
JP7229782B2 (ja) * 2019-01-09 2023-02-28 キヤノン株式会社 測定装置及び画像形成システム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013054324A (ja) 2011-09-06 2013-03-21 Canon Inc 画像形成装置
JP2014134633A (ja) 2013-01-09 2014-07-24 Sharp Corp 画像形成装置
JP2014219525A (ja) 2013-05-08 2014-11-20 シャープ株式会社 画像形成装置

Also Published As

Publication number Publication date
US20210306497A1 (en) 2021-09-30
JP2021157140A (ja) 2021-10-07
US11496640B2 (en) 2022-11-08

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