AU2020290276B2 - Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatus - Google Patents

Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatus Download PDF

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Publication number
AU2020290276B2
AU2020290276B2 AU2020290276A AU2020290276A AU2020290276B2 AU 2020290276 B2 AU2020290276 B2 AU 2020290276B2 AU 2020290276 A AU2020290276 A AU 2020290276A AU 2020290276 A AU2020290276 A AU 2020290276A AU 2020290276 B2 AU2020290276 B2 AU 2020290276B2
Authority
AU
Australia
Prior art keywords
coupling
coupling portion
drive transmission
drum
unit according
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
AU2020290276A
Other languages
English (en)
Other versions
AU2020290276A1 (en
Inventor
Akihiro Fujiwara
Ryuta Murakami
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
Publication of AU2020290276A1 publication Critical patent/AU2020290276A1/en
Priority to AU2023266346A priority Critical patent/AU2023266346B2/en
Application granted granted Critical
Publication of AU2020290276B2 publication Critical patent/AU2020290276B2/en
Priority to AU2025220871A priority patent/AU2025220871A1/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
    • G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1839—Means for handling the process cartridge in the apparatus body
    • G03G21/1857—Means for handling the process cartridge in the apparatus body for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms
    • G03G21/186—Axial couplings
    • 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
    • G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
    • G03G15/757—Drive mechanisms for photosensitive medium, e.g. gears
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1642—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements for connecting the different parts of the apparatus
    • G03G21/1647—Mechanical connection means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1661—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
    • G03G21/1671—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus for the photosensitive element
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
    • G03G21/1814—Details of parts of process cartridge, e.g. for charging, transfer, cleaning, developing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1839—Means for handling the process cartridge in the apparatus body
    • G03G21/1842—Means for handling the process cartridge in the apparatus body for guiding and mounting the process cartridge, positioning, alignment, locks
    • G03G21/1853—Means for handling the process cartridge in the apparatus body for guiding and mounting the process cartridge, positioning, alignment, locks the process cartridge being mounted perpendicular to the axis of the photosensitive member
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1839—Means for handling the process cartridge in the apparatus body
    • G03G21/1857—Means for handling the process cartridge in the apparatus body for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
    • G03G2221/1657—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts transmitting mechanical drive power

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
AU2020290276A 2019-06-12 2020-06-09 Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatus Active AU2020290276B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2023266346A AU2023266346B2 (en) 2019-06-12 2023-11-16 Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatus
AU2025220871A AU2025220871A1 (en) 2019-06-12 2025-08-25 Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatus

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019109671 2019-06-12
JP2019-109671 2019-06-12
PCT/JP2020/023319 WO2020251052A1 (ja) 2019-06-12 2020-06-09 ドラムユニット、駆動伝達ユニット、カートリッジおよび電子写真画像形成装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
AU2023266346A Division AU2023266346B2 (en) 2019-06-12 2023-11-16 Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatus

Publications (2)

Publication Number Publication Date
AU2020290276A1 AU2020290276A1 (en) 2022-01-20
AU2020290276B2 true AU2020290276B2 (en) 2023-11-30

Family

ID=73780961

Family Applications (3)

Application Number Title Priority Date Filing Date
AU2020290276A Active AU2020290276B2 (en) 2019-06-12 2020-06-09 Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatus
AU2023266346A Active AU2023266346B2 (en) 2019-06-12 2023-11-16 Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatus
AU2025220871A Pending AU2025220871A1 (en) 2019-06-12 2025-08-25 Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatus

Family Applications After (2)

Application Number Title Priority Date Filing Date
AU2023266346A Active AU2023266346B2 (en) 2019-06-12 2023-11-16 Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatus
AU2025220871A Pending AU2025220871A1 (en) 2019-06-12 2025-08-25 Drum unit, drive transmission unit, cartridge and electrophotographic image forming apparatus

Country Status (17)

Country Link
US (3) US12025941B2 (enExample)
EP (1) EP3985443A4 (enExample)
JP (2) JP7614746B2 (enExample)
KR (3) KR102749362B1 (enExample)
CN (2) CN119937266A (enExample)
AU (3) AU2020290276B2 (enExample)
BR (1) BR112021023674A2 (enExample)
CA (1) CA3142869C (enExample)
CL (1) CL2021003282A1 (enExample)
CO (1) CO2021017384A2 (enExample)
MA (1) MA56216A (enExample)
MX (1) MX2021015203A (enExample)
MY (1) MY210326A (enExample)
PH (1) PH12021553087A1 (enExample)
SG (1) SG11202113334PA (enExample)
TW (2) TWI826294B (enExample)
WO (1) WO2020251052A1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020189797A1 (ja) 2019-03-18 2020-09-24 キヤノン株式会社 電子写真画像形成装置、カートリッジ及びドラムユニット
KR102749362B1 (ko) * 2019-06-12 2024-12-31 캐논 가부시끼가이샤 드럼 유닛, 구동 전달 유닛, 카트리지 및 전자사진 화상 형성 장치
JP7822723B2 (ja) 2020-08-31 2026-03-03 キヤノン株式会社 感光体ユニット、カートリッジ、電子写真画像形成装置
JP2024002824A (ja) 2022-06-24 2024-01-11 キヤノン株式会社 カートリッジ及び画像形成装置
JP2025067667A (ja) 2023-10-13 2025-04-24 キヤノン株式会社 現像剤収容ユニット及びプロセスカートリッジ

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017107066A (ja) * 2015-12-09 2017-06-15 株式会社リコー 駆動伝達装置および画像形成装置

Family Cites Families (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6990301B2 (en) 2001-02-19 2006-01-24 Canon Kabushiki Kaisha Sealing member, toner accommodating container and image forming apparatus
JP2003255804A (ja) 2001-12-07 2003-09-10 Canon Inc プロセスカートリッジの再生産方法および現像装置の再生産方法
JP2003241606A (ja) 2002-02-20 2003-08-29 Canon Inc プロセスカートリッジ及びクリーニング装置
JP3809402B2 (ja) 2002-05-17 2006-08-16 キヤノン株式会社 プロセスカートリッジ、及び、電子写真画像形成装置
JP3548564B2 (ja) 2002-11-08 2004-07-28 キヤノン株式会社 現像ローラー組立方法
JP3970161B2 (ja) 2002-11-08 2007-09-05 キヤノン株式会社 プロセスカートリッジの再生産方法
JP2004205950A (ja) 2002-12-26 2004-07-22 Canon Inc クリーニング装置、プロセスカートリッジおよび画像形成装置
US7228090B2 (en) * 2004-02-26 2007-06-05 Konica Minolta Business Technologies, Inc. Image forming apparatus with a removable process unit capable of securing rotation transmission accuracy without stressing a holding portion despite shaft misalignment
JP2005242255A (ja) 2004-02-27 2005-09-08 Canon Inc プロセスカートリッジ、現像カートリッジ、及び把持部材部品
JP4711669B2 (ja) * 2004-12-10 2011-06-29 Ｎｔｎ株式会社 画像形成装置
JP4498407B2 (ja) 2006-12-22 2010-07-07 キヤノン株式会社 プロセスカートリッジ、電子写真画像形成装置、及び、電子写真感光体ドラムユニット
JP4948382B2 (ja) 2006-12-22 2012-06-06 キヤノン株式会社 感光ドラム取り付け用カップリング部材
JP5328230B2 (ja) 2008-06-10 2013-10-30 キヤノン株式会社 カートリッジ、及び、前記カートリッジを用いた電子写真画像形成装置
JP5127584B2 (ja) 2008-06-20 2013-01-23 キヤノン株式会社 ドラムユニット、及び、電子写真画像形成装置
JP4803267B2 (ja) * 2009-02-17 2011-10-26 富士ゼロックス株式会社 画像形成装置
EA029787B1 (ru) * 2009-03-30 2018-05-31 Кэнон Кабусики Кайся Контейнер подачи проявителя и система подачи проявителя
MX338473B (es) * 2009-03-30 2016-04-18 Canon Kk Contenedor de suministro de revelador y sistema de reabastecimiento de revelador.
JP5704911B2 (ja) * 2009-12-16 2015-04-22 キヤノン株式会社 カートリッジ、及び、電子写真画像形成装置
JP2012003243A (ja) 2010-05-19 2012-01-05 Canon Inc プロセスカートリッジ及び電子写真画像形成装置
JP5868079B2 (ja) 2011-09-05 2016-02-24 キヤノン株式会社 カートリッジおよび画像形成装置
JP5847507B2 (ja) 2011-09-14 2016-01-20 キヤノン株式会社 カートリッジ及び画像形成装置
WO2013085073A1 (ja) * 2011-12-06 2013-06-13 キヤノン株式会社 電子写真画像形成装置本体に着脱可能なカートリッジ、感光体ドラム用駆動伝達装置の組み立て方法、および電子写真画像形成装置
US8867970B2 (en) 2011-12-30 2014-10-21 Lexmark International, Inc. Toner cartridges having positional control features
JP5880190B2 (ja) * 2012-03-22 2016-03-08 富士ゼロックス株式会社 被回転体の駆動構造及び画像形成装置
JP6053428B2 (ja) 2012-09-27 2016-12-27 キヤノン株式会社 現像剤収容容器、現像カートリッジ、プロセスカートリッジ及び画像形成装置
JP6140962B2 (ja) 2012-09-27 2017-06-07 キヤノン株式会社 カートリッジ及びプロセスカートリッジ及び画像形成装置
JP5975823B2 (ja) 2012-09-28 2016-08-23 キヤノン株式会社 カートリッジ及び画像形成装置
JP6245932B2 (ja) 2012-11-06 2017-12-13 キヤノン株式会社 カートリッジ、現像カートリッジ、プロセスカートリッジ及び画像形成装置
JP6370039B2 (ja) 2013-01-31 2018-08-08 キヤノン株式会社 収納容器、現像装置、プロセスカートリッジ及び画像形成装置
JP2014191025A (ja) * 2013-03-26 2014-10-06 Mitsubishi Chemicals Corp 軸受部材、端部部材、感光体ドラムユニット、及びプロセスカートリッジ
JP6289172B2 (ja) 2013-05-23 2018-03-07 キヤノン株式会社 現像剤容器、現像カートリッジ、プロセスカートリッジ及び画像形成装置
JP6112974B2 (ja) 2013-05-31 2017-04-12 キヤノン株式会社 現像剤容器、現像カートリッジ、プロセスカートリッジ及び画像形成装置
JP6173069B2 (ja) 2013-06-27 2017-08-02 キヤノン株式会社 現像剤容器、現像カートリッジ、プロセスカートリッジ及び画像形成装置
JP6415198B2 (ja) * 2013-09-12 2018-10-31 キヤノン株式会社 カートリッジ
US9740163B2 (en) * 2013-09-29 2017-08-22 Ninestar Corporation Rotational force driving assembly process cartridge
US9846409B2 (en) * 2014-05-06 2017-12-19 Apex Technology Co., Ltd. Processing cartridge and driving assembly thereof
JP6465631B2 (ja) * 2014-11-28 2019-02-06 キヤノン株式会社 カートリッジ及び画像形成装置
JP2016148783A (ja) 2015-02-12 2016-08-18 三菱化学株式会社 軸部材、端部部材、感光体ドラムユニット、現像ローラユニット、プロセスカートリッジ
KR20250137729A (ko) 2015-02-27 2025-09-18 캐논 가부시끼가이샤 드럼 유닛, 카트리지 및 전자 사진 형성 장치
US10082954B2 (en) 2015-09-04 2018-09-25 International Business Machines Corporation Challenge generation for verifying users of computing devices
CN114047678B (zh) 2016-06-14 2025-02-25 佳能株式会社 处理盒和电子照相式成像装置
JP6808364B2 (ja) 2016-06-14 2021-01-06 キヤノン株式会社 電子写真画像形成装置
JP6207702B2 (ja) * 2016-09-26 2017-10-04 キヤノン株式会社 プロセスカートリッジ
JP6699625B2 (ja) 2017-05-31 2020-05-27 京セラドキュメントソリューションズ株式会社 ジョイント機構及びこれを備えた画像形成装置
JP7058992B2 (ja) 2017-12-13 2022-04-25 キヤノン株式会社 画像形成装置およびカートリッジ
ES2932091T3 (es) 2017-12-13 2023-01-11 Canon Kk Cartucho y dispositivo de formación de imágenes
JP7048299B2 (ja) 2017-12-18 2022-04-05 株式会社オービック 受注登録装置、受注登録方法、および、受注登録プログラム
US10627780B2 (en) 2018-01-23 2020-04-21 Canon Kabushiki Kaisha Cartridge and image forming apparatus
KR102749362B1 (ko) * 2019-06-12 2024-12-31 캐논 가부시끼가이샤 드럼 유닛, 구동 전달 유닛, 카트리지 및 전자사진 화상 형성 장치

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017107066A (ja) * 2015-12-09 2017-06-15 株式会社リコー 駆動伝達装置および画像形成装置

Also Published As

Publication number Publication date
SG11202113334PA (en) 2021-12-30
AU2023266346B2 (en) 2025-09-11
KR20250004944A (ko) 2025-01-08
MX2021015203A (es) 2022-01-18
EP3985443A1 (en) 2022-04-20
CA3142869A1 (en) 2020-12-17
JP2025038237A (ja) 2025-03-18
KR102749362B1 (ko) 2024-12-31
JP7614746B2 (ja) 2025-01-16
BR112021023674A2 (pt) 2022-01-04
KR20250154544A (ko) 2025-10-28
AU2023266346A1 (en) 2023-12-07
US20240045364A1 (en) 2024-02-08
CA3142869C (en) 2024-07-02
PH12021553087A1 (en) 2023-08-14
KR102875460B1 (ko) 2025-10-27
TWI800736B (zh) 2023-05-01
TW202333004A (zh) 2023-08-16
AU2025220871A1 (en) 2025-09-11
TW202105093A (zh) 2021-02-01
US12287600B2 (en) 2025-04-29
AU2020290276A1 (en) 2022-01-20
CN113966491B (zh) 2025-03-14
MA56216A (fr) 2022-04-20
WO2020251052A1 (ja) 2020-12-17
US20220082984A1 (en) 2022-03-17
MY210326A (en) 2025-09-11
CL2021003282A1 (es) 2022-09-09
KR20220018596A (ko) 2022-02-15
JP7841070B2 (ja) 2026-04-06
JP2020204767A (ja) 2020-12-24
US20250164918A1 (en) 2025-05-22
CN113966491A (zh) 2022-01-21
CN119937266A (zh) 2025-05-06
CO2021017384A2 (es) 2022-01-17
EP3985443A4 (en) 2023-07-19
US12025941B2 (en) 2024-07-02
TWI826294B (zh) 2023-12-11

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