EP0576757B1 - Process cartridge and image forming system on which process cartridge is mountable - Google Patents

Process cartridge and image forming system on which process cartridge is mountable Download PDF

Info

Publication number
EP0576757B1
EP0576757B1 EP92308511A EP92308511A EP0576757B1 EP 0576757 B1 EP0576757 B1 EP 0576757B1 EP 92308511 A EP92308511 A EP 92308511A EP 92308511 A EP92308511 A EP 92308511A EP 0576757 B1 EP0576757 B1 EP 0576757B1
Authority
EP
European Patent Office
Prior art keywords
photosensitive drum
toner
image forming
process cartridge
drum
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 - Lifetime
Application number
EP92308511A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0576757A2 (en
EP0576757A3 (enrdf_load_stackoverflow
Inventor
Tadayuki C/O Canon Kabushiki Kaisha Tsuda
Kazumi c/o Canon Kabushiki Kaisha Sekine
Isao C/O Canon Kabushiki Kaisha Ikemoto
Kazushi C/O Canon Kabushiki Kaisha Watanabe
Yoshikazu c/o Canon Kabushiki Kaisha Sasago
Shinya c/o Canon Kabushiki Kaisha Noda
Kazunori c/o Canon Kabushiki Kaisha Kobayashi
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 EP0576757A2 publication Critical patent/EP0576757A2/en
Publication of EP0576757A3 publication Critical patent/EP0576757A3/xx
Application granted granted Critical
Publication of EP0576757B1 publication Critical patent/EP0576757B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • G03G21/181—Manufacturing or assembling, recycling, reuse, transportation, packaging or storage
    • 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
    • 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
    • G03G21/1604—Arrangement or disposition of the entire apparatus
    • G03G21/1623—Means to access the interior of the apparatus
    • G03G21/1633—Means to access the interior of the apparatus using doors or covers
    • 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
    • G03G21/18—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
    • G03G21/1817—Arrangements or disposition of the complete process cartridge or parts thereof having a submodular arrangement
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00987—Remanufacturing, i.e. reusing or recycling parts of the image forming apparatus
    • 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
    • G03G2221/1606—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the photosensitive element
    • G03G2221/1609—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the photosensitive element protective arrangements for preventing damage
    • G03G2221/1612—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the photosensitive element protective arrangements for preventing damage plural shutters for openings of process cartridge
    • 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
    • G03G2221/18—Cartridge systems
    • G03G2221/183—Process cartridge
    • G03G2221/1853—Process cartridge having a submodular arrangement
    • 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
    • G03G2221/18—Cartridge systems
    • G03G2221/183—Process cartridge
    • G03G2221/1853—Process cartridge having a submodular arrangement
    • G03G2221/1876—Process cartridge having a submodular arrangement for production purposes, e.g. manufacture or mass production

Definitions

  • the sheet supply tray 3 and the ejection tray 8 are mounted on shafts 3a, 8a, respectively within the system body 16 for pivotal movements in directions b in Fig. 2, and for pivotal movements around shafts 3b, 8b in directions c in Fig. 2.
  • Locking projections 3c, 8c are formed on free ends of the trays 3, 8 at both sides thereof, respectively. These projections can be fitted into locking recesses 1b2 formed in an upper surface of the original hold-down plate 1b.
  • the feed member 12b1 has a lock projection 12b4 at its one longitudinal end, which projection is rotatably fitted into a slot 12b5 formed in the arm member 12b2.
  • the arm member 12b2 is rotatably mounted on the upper frame 14 via a shaft 12b3 and is connected to an arm (not shown) disposed outside the toner reservoir 12a.
  • a drive transmitting means is connected to the feed members 12b1 so that, when the process cartridge B is mounted within the image forming system A, the driving force from the image forming system is transmitted to the feed members to swing the arm member 12b2 around the shaft 12b3 by a predetermined angle.
  • the feed members 12b1 and the arm member 12b2 may be integrally formed from resin such as polypropylene, polyamide or the like so that they can be folded at a connecting portion therebetween.
  • the non-magnetic toner adhered to the developing sleeve 12d enters into an abutment area between the developing blade 12e and the developing sleeve 12d to form the thin toner layer on the developing sleeve, and the toner is frictionally charged by the sliding contact between the toner and the developing sleeve with the polarity sufficiently to develop the electrostatic latent image.
  • the toner remains on the developing sleeve 12d, the remaining toner is mixed with the new toner fed to the developing sleeve 12d and is fed to the abutment area between the developing sleeve and the developing blade 12e.
  • the developing bias contact 18b is also attached to the bearing member 26, and, when the bearing member 26 is attached to the developing sleeve 12d, the bias contact 18b is contacted with a conductive member 18d contacting the inner surface of the developing sleeve 12d.
  • the tear tape 27 can easily be exposed from the process cartridge in assembling the upper and lower frames 14, 15.
  • the gripper portions 14f, 15k are utilized when the process cartridge B is mounted within the image forming system.
  • the operator forgets to remove the tear tape 27 before the process cartridge is mounted within the image forming system, since he must grip the gripper portions in mounting the process cartridge, he will know the exsistence of the non-removed tear tape 27.
  • the color of the tear tape 27 is clearly differentiated from the color of the frames 14, 15 (for example, if the frames are black, a white or yellow tear tape 27 is used), the noticeability is improved, thus reducing the missing of the removal of the tear tape.
  • the assembling and shipping line for the process cartridge B will be explained with reference to Fig. 39A.
  • the various parts are assembled in the lower frame 15, and then, the lower frame into which the various parts are incorporated is checked (for example, the positional relation between the photosensitive drum 9 and the developing sleeve 12d is checked).
  • the lower frame 15 is interconnected to the upper frame 14 within which the patrs such as the charger roller 10 are assembled, thereby forming the process cartridge B.
  • the total check of the process cartridge B is effected, and then the process cartridge is shipped.
  • the assembling and shipping line is very simple.
  • positioning projections 15m are formed on the lower frame 15 to which the photosensitive drum 9 is attached, in the vicinity of both longitudinal ends of the frame. As shown in Fig. 5, when the upper and lower frames 14, 15 are interconnected, these projections 15m protrude upwardly through holes 14g formed in the upper frame 14.
  • the process cartridge B is mounted within the image forming system A, the distance between the lens array 1c2 in the lens unit 1c and the photosensitive drum 9 mounted on the lower frame 15 is accurately determined, so that the light image optically read from the original 2 can be accurately illuminated onto the photosensitive drum 9 via the lens array 1c2.
  • the charger roller 10 is mounted on the upper frame 14 other than the lower frame 15 on which the photosensitive drum 9, developing sleeve 12d and cleaning means 13 are mounted, the upper frame 14 separated from the lower frame 15 can easily be cleaned.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Laser Beam Printer (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Dry Development In Electrophotography (AREA)
EP92308511A 1992-06-30 1992-09-18 Process cartridge and image forming system on which process cartridge is mountable Expired - Lifetime EP0576757B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP194662/92 1992-06-30
JP19466292A JP3270122B2 (ja) 1992-06-30 1992-06-30 プロセスカートリッジ及び画像形成装置

Publications (3)

Publication Number Publication Date
EP0576757A2 EP0576757A2 (en) 1994-01-05
EP0576757A3 EP0576757A3 (enrdf_load_stackoverflow) 1994-03-09
EP0576757B1 true EP0576757B1 (en) 1997-03-19

Family

ID=16328233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92308511A Expired - Lifetime EP0576757B1 (en) 1992-06-30 1992-09-18 Process cartridge and image forming system on which process cartridge is mountable

Country Status (6)

Country Link
EP (1) EP0576757B1 (enrdf_load_stackoverflow)
JP (1) JP3270122B2 (enrdf_load_stackoverflow)
KR (1) KR0123924B1 (enrdf_load_stackoverflow)
CN (1) CN1049986C (enrdf_load_stackoverflow)
DE (1) DE69218423T2 (enrdf_load_stackoverflow)
MX (1) MX9205522A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100397509B1 (ko) * 1998-12-28 2003-11-17 엘지전자 주식회사 전화기자판이부착된한글입력장치및그방법
JP3513488B2 (ja) 2000-12-20 2004-03-31 キヤノン株式会社 プロセスカートリッジの再生産方法
JP4413912B2 (ja) * 2006-11-29 2010-02-10 株式会社沖データ 粉体カートリッジ、現像装置、及び画像形成装置
JP7094705B2 (ja) * 2018-01-24 2022-07-04 キヤノン株式会社 画像形成装置
KR102297178B1 (ko) 2020-10-16 2021-09-01 한만걸 냉연강판 심용접 초음파 검사장치

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437097A2 (en) * 1990-01-11 1991-07-17 Konica Corporation Image forming apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0799448B2 (ja) * 1985-02-27 1995-10-25 三田工業株式会社 シエル型静電複写機
US4806977A (en) * 1986-06-18 1989-02-21 Canon Kabushiki Kaisha Image forming apparatus with disconnectable carriage drive
US4816877A (en) * 1988-02-25 1989-03-28 Fred Keen Refillable toner cartridge and method of manufacture thereof
US5028966A (en) * 1988-11-10 1991-07-02 Mita Industrial Co., Ltd. Image-forming machine
US4987446A (en) * 1988-12-15 1991-01-22 Ricoh Company, Ltd. Process unit cartridge for an electrophotographic apparatus
JP2590015B2 (ja) * 1989-02-15 1997-03-12 三田工業株式会社 トナー像現像装置
EP0453963B1 (en) * 1990-04-27 1997-08-27 Canon Kabushiki Kaisha Process cartridge detachably mountable to image forming apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437097A2 (en) * 1990-01-11 1991-07-17 Konica Corporation Image forming apparatus

Also Published As

Publication number Publication date
KR940006006A (ko) 1994-03-22
EP0576757A2 (en) 1994-01-05
EP0576757A3 (enrdf_load_stackoverflow) 1994-03-09
JP3270122B2 (ja) 2002-04-02
DE69218423D1 (de) 1997-04-24
MX9205522A (es) 1994-01-31
CN1049986C (zh) 2000-03-01
JPH0619241A (ja) 1994-01-28
CN1081261A (zh) 1994-01-26
DE69218423T2 (de) 1997-08-14
KR0123924B1 (ko) 1997-11-26

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