EP0429152B1 - Unité de développement - Google Patents

Unité de développement Download PDF

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Publication number
EP0429152B1
EP0429152B1 EP90250285A EP90250285A EP0429152B1 EP 0429152 B1 EP0429152 B1 EP 0429152B1 EP 90250285 A EP90250285 A EP 90250285A EP 90250285 A EP90250285 A EP 90250285A EP 0429152 B1 EP0429152 B1 EP 0429152B1
Authority
EP
European Patent Office
Prior art keywords
toner container
frame
mask
longitudinal edge
magnetic roller
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
EP90250285A
Other languages
German (de)
English (en)
Other versions
EP0429152A2 (fr
EP0429152A3 (en
Inventor
Norbert Grimm
Gerhard Wilcke
Hans Wolff
Robert Sinicki
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.)
Berolina Schriftbild Wilcke Wolff Busch and Partner KG
Original Assignee
Berolina Schriftbild Wilcke Wolff Busch and Partner KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6393980&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0429152(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Berolina Schriftbild Wilcke Wolff Busch and Partner KG filed Critical Berolina Schriftbild Wilcke Wolff Busch and Partner KG
Priority to AT90250285T priority Critical patent/ATE95928T1/de
Publication of EP0429152A2 publication Critical patent/EP0429152A2/fr
Publication of EP0429152A3 publication Critical patent/EP0429152A3/de
Application granted granted Critical
Publication of EP0429152B1 publication Critical patent/EP0429152B1/fr
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
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0894—Reconditioning of the developer unit, i.e. reusing or recycling parts of the unit, e.g. resealing of the unit before refilling with toner
    • 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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit
    • G03G15/0881—Sealing of developer cartridges
    • G03G15/0882—Sealing of developer cartridges by a peelable sealing film
    • 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

Definitions

  • the invention relates to a developer station for a cartridge provided with a photosensitive drum for a photocopier or a laser printer with a toner container and a magnetic roller connected downstream of the opening of the toner container, in which a frame is used between the toner container and a frame which is detachably connected to it and serves to support the magnetic roller a mask having a window sealed by a peelable film strip is arranged.
  • a developer station of the above type in which the toner container is provided with a circumferential flange which can be connected to the frame for the magnetic roller by means of a plurality of screws distributed over its entire circumference.
  • the large number of screws not only proves to be disadvantageous in that it increases the time required for replacing a toner container, but it is also unsatisfactory because the space required for the screws is comparatively large and prevents the cartridge from being compact.
  • the invention has for its object to provide a developer station of the type under consideration, which allows a quick and easy replacement of the toner container with a compact and inexpensive design.
  • This object is achieved in that a longitudinal edge of the mask as a substantially V-shaped guide and holding rail for one of the Longitudinal edge of the frame formed flange is formed and the frame is connected to the toner container by means of screws on its longitudinal edge facing away from the guide and holding rail.
  • the developer station according to the invention has the advantage that its guide and holding rail facilitates the assembly of the toner container and frame, since the frame only has to be connected to the toner container by means of screws on its longitudinal edge facing away from the guide and holding rail.
  • the arrangement of the guide and holding rails on the mask keeps the tooling costs required for their production within reasonable limits. After all, the space required for the guide and holding rail is less than the space required for a screw flange.
  • the length of the toner container should be greater than the length of the magnetic roller, i.e. in practice have at least the same length as the frame used to support the magnetic roller.
  • the frame is provided with a circumferential foam seal on its contact surface facing the mask.
  • 1 is a toner container provided with a filling opening 2 which can be closed by a stopper (not shown).
  • the toner container 1 is trough-like, ie open on one side.
  • the open side of the toner container 1 forms a toner discharge opening 4 surrounded by a circumferential flange 3, through which toner can get into the region of a magnet roller 6 mounted in a housing-like frame 5 during operation of a device equipped with the developer station.
  • a mask 7 and a foam seal 8 are arranged between the frame 5 of the magnetic roller 6 and the toner container 1.
  • an adhesive strip 9 coated on both sides is used, which on the one hand ensures a sufficiently firm and tight connection between the mask 7 and the toner container 1, but on the other hand also allows the mask 7 to be replaced.
  • the mask 7 delimits a window 10 which is closed or sealed by a removable film strip 11.
  • the sealing is preferably carried out by welding.
  • the foam seal 8 ensures that, even after the film strip 11 has been removed from the mask 7, the connection point between the toner container 1 and the frame 5 is properly sealed.
  • a flange 12 formed by one of the longitudinal edges of the frame 5 is pushed together with a longitudinal edge 13 of the foam seal 8 into a guide and holding rail 15 arranged on the longitudinal edge 14 of the mask 7 and then set with the help screws 16 provide a tight connection between the frame 5 and the mask 7 previously connected to the toner container 1.
  • the preferably self-tapping screws 16 can be screwed into bores 17 of the flange 3 of the toner container 1.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Dry Development In Electrophotography (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Pyrane Compounds (AREA)
  • Indole Compounds (AREA)
  • Color Electrophotography (AREA)

Claims (4)

  1. Unité de développement, pour une cartouche comportant un tambour sensible à la lumière et destinée à une photocopieuse ou une imprimante laser, comprenant un réservoir à toner (1) et un cylindre magnétique (6) disposé en aval de l'ouverture du réservoir de toner (1), tandis qu'entre le réservoir de toner (1) et un châssis (5) relié de manière amovible à ce réservoir de toner (1) et servant au montage à palier du cylindre magnétique (6), est disposé un masque (7) comportant une fenêtre (10) fermée d'une manière hermétique par une bande, une feuille (11) pouvant être pelée, caractérisée en ce qu'un bord longitudinal (14) du masque (7) est réalisé sous la forme d'un rail, pratiquement en V, de guidage et de maintien d'un rebord (12) formé sur le bord longitudinal du châssis (5) et en ce que, par son bord longitudinal situé à l'opposé du rail de guidage et de maintien (15), le châssis (5) est fixé au réservoir de toner au moyen de vis (16).
  2. Unité de développement suivant la revendication 1, caractérisée en ce que la longueur (L) du réservoir de toner (1) est supérieure à la longueur (1) du cylindre magnétique (6).
  3. Unité de développement suivant l'une des revendications 1 et 2, caractérisée en ce que, sur sa surface d'appui faisant face au masque (7), le châssis (5) est pourvu d'une garniture d'étanchéité en mousse (8) qui en fait tout le tour.
  4. Unité de développement suivant l'une des revendications 1 à 3, caractérisée en ce que, par sa face tournée vers le réservoir de toner (1), le masque (7) est fixé sur ce dernier au moyen d'une bande adhésive (9) revêtue de colle sur ses deux faces.
EP90250285A 1989-11-17 1990-11-16 Unité de développement Expired - Lifetime EP0429152B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90250285T ATE95928T1 (de) 1989-11-17 1990-11-16 Entwicklerstation.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3938709 1989-11-17
DE3938709A DE3938709A1 (de) 1989-11-17 1989-11-17 Entwicklerstation

Publications (3)

Publication Number Publication Date
EP0429152A2 EP0429152A2 (fr) 1991-05-29
EP0429152A3 EP0429152A3 (en) 1991-09-11
EP0429152B1 true EP0429152B1 (fr) 1993-10-13

Family

ID=6393980

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90250285A Expired - Lifetime EP0429152B1 (fr) 1989-11-17 1990-11-16 Unité de développement

Country Status (4)

Country Link
EP (1) EP0429152B1 (fr)
AT (1) ATE95928T1 (fr)
DE (2) DE3938709A1 (fr)
ES (1) ES2046684T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4128101C2 (de) * 1991-08-24 1993-11-25 Turbon International Ag Tonerkartusche für Laserdrucker oder Kopiergeräte
DE69332403T2 (de) * 1993-06-01 2003-07-03 Hewlett Packard Co Tonerdichtung einer Tonerkassette
DE69414643T2 (de) * 1993-06-25 1999-05-06 Canon Kk Prozesseinheit und Bilderzeugungsgerät
US5752131A (en) * 1993-06-25 1998-05-12 Canon Kabushiki Kaisha Developing apparatus with a removable sealing film and process cartridge and image forming apparatus including such a developing apparatus
DE69410571T2 (de) * 1993-11-01 1998-11-19 Canon Kk Prozesseinheit und Bilderzeugungsgerät
BE1008324A4 (nl) * 1994-05-11 1996-04-02 Kesel Jan De Middel om cartridges te hercycleren.
GB2289238B (en) * 1994-05-11 1998-08-26 Kesel Jan De Seal for a toner cartridge assembly

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2161851A1 (de) * 1970-12-14 1972-06-29 Xerox Corp Tonereingabevorrichtung für elektrostatische Reproduktionsmaschinen
JPS5687068A (en) * 1979-12-18 1981-07-15 Ricoh Co Ltd Toner supplying device
US4615608A (en) * 1983-10-31 1986-10-07 Canon Kabushiki Kaisha Developing apparatus
US4650097A (en) * 1983-12-27 1987-03-17 Sharp Kabushiki Kaisha Developer material supply arrangement
DE3532234A1 (de) * 1984-09-11 1986-03-20 Sharp K.K., Osaka Elektrophotographisches kopiergeraet
DE8700905U1 (fr) * 1987-01-16 1987-03-05 Berolina International Marketing Strategie Gmbh, 1000 Berlin, De
JPS6410274A (en) * 1987-07-02 1989-01-13 Sharp Kk Developing device for copying machine
JPS6410276A (en) * 1987-07-02 1989-01-13 Sharp Kk Developing device for copying machine

Also Published As

Publication number Publication date
ES2046684T3 (es) 1994-02-01
EP0429152A2 (fr) 1991-05-29
DE3938709C2 (fr) 1992-09-10
DE3938709A1 (de) 1991-05-23
EP0429152A3 (en) 1991-09-11
ATE95928T1 (de) 1993-10-15
DE59003078D1 (de) 1993-11-18

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