JP7614867B2 - 画像形成装置 - Google Patents

画像形成装置 Download PDF

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Publication number
JP7614867B2
JP7614867B2 JP2021016510A JP2021016510A JP7614867B2 JP 7614867 B2 JP7614867 B2 JP 7614867B2 JP 2021016510 A JP2021016510 A JP 2021016510A JP 2021016510 A JP2021016510 A JP 2021016510A JP 7614867 B2 JP7614867 B2 JP 7614867B2
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JP
Japan
Prior art keywords
voltage
output
charging
charging roller
amplitude
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JP2021016510A
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English (en)
Japanese (ja)
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JP2022119419A5 (https=
JP2022119419A (ja
Inventor
裕寿 中島
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 JP2021016510A priority Critical patent/JP7614867B2/ja
Priority to US17/580,487 priority patent/US11675286B2/en
Publication of JP2022119419A publication Critical patent/JP2022119419A/ja
Publication of JP2022119419A5 publication Critical patent/JP2022119419A5/ja
Application granted granted Critical
Publication of JP7614867B2 publication Critical patent/JP7614867B2/ja
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    • 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
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0266—Arrangements for controlling the amount of charge
    • 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
    • G03G15/55—Self-diagnostics; Malfunction or lifetime display

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
JP2021016510A 2021-02-04 2021-02-04 画像形成装置 Active JP7614867B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2021016510A JP7614867B2 (ja) 2021-02-04 2021-02-04 画像形成装置
US17/580,487 US11675286B2 (en) 2021-02-04 2022-01-20 Image forming apparatus configured to determine abnormality of drum unit earth terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021016510A JP7614867B2 (ja) 2021-02-04 2021-02-04 画像形成装置

Publications (3)

Publication Number Publication Date
JP2022119419A JP2022119419A (ja) 2022-08-17
JP2022119419A5 JP2022119419A5 (https=) 2024-01-29
JP7614867B2 true JP7614867B2 (ja) 2025-01-16

Family

ID=82611373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021016510A Active JP7614867B2 (ja) 2021-02-04 2021-02-04 画像形成装置

Country Status (2)

Country Link
US (1) US11675286B2 (https=)
JP (1) JP7614867B2 (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000066498A (ja) 1998-08-21 2000-03-03 Canon Inc 電子写真画像形成装置及びプロセスカートリッジ
JP2004086156A (ja) 2002-07-02 2004-03-18 Ricoh Co Ltd 画像形成装置、帯電装置、および帯電装置の電源制御方法
JP2019095659A (ja) 2017-11-24 2019-06-20 キヤノン株式会社 画像形成装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003208062A (ja) * 2002-01-17 2003-07-25 Canon Inc 高圧故障検出装置、画像形成装置の高圧故障検出装置、画像形成装置、画像形成システム、高圧故障検出方法、画像形成装置の高圧故障検出方法、画像形成方法、及び制御プログラムを提供する媒体
JP2004138838A (ja) 2002-10-18 2004-05-13 Canon Inc 画像形成装置
JP4713236B2 (ja) * 2005-06-16 2011-06-29 株式会社リコー 画像形成装置
JP4870456B2 (ja) * 2006-03-16 2012-02-08 株式会社リコー 画像形成装置
JP2018044996A (ja) * 2016-09-12 2018-03-22 キヤノン株式会社 画像形成装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000066498A (ja) 1998-08-21 2000-03-03 Canon Inc 電子写真画像形成装置及びプロセスカートリッジ
JP2004086156A (ja) 2002-07-02 2004-03-18 Ricoh Co Ltd 画像形成装置、帯電装置、および帯電装置の電源制御方法
JP2019095659A (ja) 2017-11-24 2019-06-20 キヤノン株式会社 画像形成装置

Also Published As

Publication number Publication date
US11675286B2 (en) 2023-06-13
JP2022119419A (ja) 2022-08-17
US20220244659A1 (en) 2022-08-04

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