EP2662733A2 - Tonernachfüllkartuschensystem und sein Umsetzungsverfahren - Google Patents

Tonernachfüllkartuschensystem und sein Umsetzungsverfahren Download PDF

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Publication number
EP2662733A2
EP2662733A2 EP13171318.2A EP13171318A EP2662733A2 EP 2662733 A2 EP2662733 A2 EP 2662733A2 EP 13171318 A EP13171318 A EP 13171318A EP 2662733 A2 EP2662733 A2 EP 2662733A2
Authority
EP
European Patent Office
Prior art keywords
cartridge
refill
piston
toner
piston body
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.)
Withdrawn
Application number
EP13171318.2A
Other languages
English (en)
French (fr)
Other versions
EP2662733A3 (de
Inventor
Paolo Moro
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.)
Funai Electric Co Ltd
Original Assignee
Sagemcom Documents SAS
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 Sagemcom Documents SAS filed Critical Sagemcom Documents SAS
Publication of EP2662733A2 publication Critical patent/EP2662733A2/de
Publication of EP2662733A3 publication Critical patent/EP2662733A3/de
Withdrawn legal-status Critical Current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
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0849—Detection or control means for the developer concentration
    • G03G15/0855—Detection or control means for the developer concentration the concentration being measured by optical means
    • 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
    • G03G15/0865—Arrangements for supplying new developer
    • 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
    • G03G15/0865—Arrangements for supplying new developer
    • G03G15/0867—Arrangements for supplying new developer cylindrical developer cartridges, e.g. toner bottles for the developer replenishing opening
    • 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
    • G03G15/0886—Sealing of developer cartridges by mechanical means, e.g. shutter, plug
    • 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
    • G03G2215/06—Developing structures, details
    • G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
    • G03G2215/0663—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
    • G03G2215/0665—Generally horizontally mounting of said toner cartridge parallel to its longitudinal rotational axis
    • G03G2215/067—Toner discharging opening covered by arcuate shutter
    • 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
    • G03G2215/06—Developing structures, details
    • G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
    • G03G2215/0663—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
    • G03G2215/0675—Generally cylindrical container shape having two ends

Definitions

  • a single toner refill cartridge system for a printer or facsimile type printing device offers a toner cartridge which, when empty, can be refilled once with a refill suitable for that cartridge.
  • the invention also relates to a method for implementing this system.
  • the invention has applications in the field of printing. It finds, in particular, applications in the field of printing by computer devices, such as printers, photocopiers or fax machines.
  • this toner is placed in a cartridge located inside the printing apparatus.
  • Each toner cartridge is intended for a limited number of printed pages, for example 3000 or 5000 pages.
  • the cartridge is empty, two possibilities are presently available to the user of the device: either he replaces the empty cartridge with a new full cartridge, or he refills the cartridge with bottled toner.
  • the change of a cartridge has the disadvantage of having a relatively high cost. Indeed, an entire cartridge has a significantly higher cost than bottled toner. Also, some users choose to fill the cartridge with toner sold in bottle. In this case, to fill the cartridge, the user must open the cartridge, then open the toner bottle, and pour the toner directly into the cartridge. Toner is a fine powder that flakes easily, especially when it is transferred from one container to another container. In addition, this fine powder is colored. It therefore dirty the elements around the cartridge to be filled and the hands and clothes of the user. In addition, opening the cap of the cartridge also causes dirt on the hands of the user and may, in addition, deteriorate the cap. This technique is therefore not only messy, but in addition it is relatively long to implement.
  • this technique does not make it possible to control the life of the components of the cartridge and, in particular, the rollers of the cartridge which can become dirty, or wear out, and deteriorate the quality of the printing, even make the printing device unusable.
  • tongues are relatively fragile and it is common that they break when the user pulls to open the refill. The user is then obliged to remove the refill from the cartridge, with all the disadvantages that entails, especially if the refill has been partially opened by the tab.
  • the document US-A-5,907,747 describes another type of refill for a toner cartridge.
  • This refill has a shape substantially identical to the shape of the cartridge and it is inserted into the receptacle of the cartridge. The lid of the cartridge is then placed on top of the refill to seal the assembly. When the cartridge is closed, with the refill inside, the user must pull a tab to open the refill.
  • This recharge therefore has the same disadvantages than those previously stated.
  • the invention provides a single toner refill cartridge system comprising a full toner cartridge and a refill to be inserted into the cartridge, in a simple and clean manner, when the cartridge is empty.
  • the refill is cylindrical in shape, adapted to the shape of the cartridge. The refill is inserted into the cartridge, through a lateral side of the cartridge, after removing a sealing plug, and then rotated inside the cartridge so that the toner contained therein falls. in the cartridge.
  • the refill cartridge system of the invention thus makes it possible to refill the toner cartridge in a clean manner, without the user being at any time in direct contact with the toner. It also ensures complete recycling of the cartridge and refill assembly since, when the refill has been introduced into the cartridge, it can no longer be removed from the cartridge. Also, when the refill is empty, the user returns the cartridge and refill assembly to the manufacturer who has at his disposal all the "dirty" elements requiring recycling.
  • This system also has the advantage of allowing the manufacturer to control the service life of the components and, in particular, their fouling. by limiting the possible number of printed pages. In other words, if the manufacturer knows that the components have a life of 10000 pages, he adapts the amount of toner in the cartridge and the refill so that the total number of pages does not exceed 10000.
  • This system also has the advantage of being less expensive for the user than two cartridges, for an identical number of pages, with a good print guarantee;
  • the refill comprises a piston and a piston body, the piston being rotatable relative to the piston body, about a longitudinal axis of rotation.
  • FIG. 1 A single toner refill cartridge system.
  • FIG. 1 On the figure 1 , there is shown an exploded view of the cartridge 1 and the refill 2 of the system according to the invention.
  • the cartridge 1 has a receptacle 10 for containing the toner used for printing.
  • This receptacle 10 is closed by a lid 11 of semi-cylindrical shape.
  • the opening face 12b is closed by a cover 14 which seals the toner inside the cartridge, before using the refill.
  • This seal 14 is a perforable film that can be made of a plastic material, such as a very thin polycarbonate, or aluminum.
  • This seal 14 is sealed in the opening face 12b of the cartridge 1 by any known sealing means.
  • This cover 14 is thin enough to be pierced by means of a tip or a lug. It can also be thinned in some places to facilitate its penetration in these places. Indeed, this seal is intended to be pierced by the refill 2 during the introduction of said refill in the cartridge 1.
  • Refill 2 has a cylindrical shape, adapted to the shape of the cartridge to be introduced.
  • This refill 2 comprises a piston 21 and a piston body 20, which can be made of the same material or in two different materials.
  • the piston body 20 has a half-cylinder 22c which terminates at both ends by circular rings 22a and 22b.
  • the piston body 20 can be molded, in its entirety, in a plastic material.
  • This second flange is a pellet of circular shape, fixed on the half-cylinder 25 by any known fastening means or molded with the half-cylinder 25.
  • this second flange comprises a tip, or pawn, preferably in the center the flange, for perforating the lid 14 at the beginning of the insertion of the refill in the cartridge 1, by the opening face 12b.
  • the piston body 20 and the piston 21 have shapes complementary to each other. More specifically, the half-cylinder 22c of the piston body and the half-cylinder 25 of the piston are, in a closed position, placed face to face so as to form, together, a closed cylinder. In an open position, the two half-cylinders are placed one above the other so as to form a cylinder open over a large part of its length.
  • the half-cylinders 22c of the piston body and the piston may each have a circumference substantially equal to half of the closed cylinder which they form when they face each other.
  • These half-cylinders 22c and 25 may also each have a circumference greater than half of the closed cylinder; in this case, a part, on either side of each half-cylinder, overlaps part of the other half-cylinder.
  • the circumferences of the two half-cylinders may be different from each other or, on the contrary, substantially equal.
  • the toner is placed inside the cylinder formed by the piston body 20 and the piston 21.
  • the piston comprises, on the first flange 23, a rotation lever 24 which makes it possible to cause the piston 21 to rotate around a longitudinal axis of rotation.
  • the piston 21 thus rotates relative to the piston body 20 which is fixed.
  • the flange 23 rotates along the ring 22b driving the piston inside the piston body.
  • the piston can thus rotate a half turn, that is to say half of the circumference of the refill. It then comes parallel to the piston body 20, inside said piston body, leaving a wide opening in the refill to allow the evacuation of the toner out of the refill, to the receptacle 10 of the cartridge.
  • the refill 2 has a closed position in which it contains the toner and an open position in which it is empty, the toner being in the receptacle 10 of the cartridge 1.
  • the closed position of the refill is shown in FIG. figure 2 , according to a sectional view along the arrows AA of the figure 1 .
  • This figure 2 shows that, in its closed position, the half-cylinder 25 of the piston 21 and the half-cylinder 22c of the piston body 20 are placed face to face. The toner T is then trapped in the two half-cylinders.
  • the refill of the invention when in an intermediate position, between the closed position and the open position.
  • the toner starts to escape from the refill by the opening made between the two half-cylinders.
  • the toner escapes regularly over the entire length of the refill, its distribution in the receptacle of the cartridge is homogeneous. It is therefore not necessary for the user to shake the refill before inserting it into the cartridge.
  • a user having an empty toner cartridge can fill the cartridge as follows: it has the refill 2 in front of the opening face 12b of the cartridge 1 and introduces the refill into the cartridge. When the refill passes through the opening face 12b, a tip on the refill pierces the operculum 14 which tears and is distributed around the refill. The user can then push the refill until the flange 23 is in the opening face 12b. Once the refill is in place, the user turns the lever 24 to move the refill from its closed position to its open position.
  • a slot 15 may be made in the opening face of the cartridge, for receiving a rod 26 made on the piston body.
  • the piston body 20 is not completely cylindrical; it comprises at least one rod 26, or side bar, made of the same material as the entire piston body, and projecting from said piston body.
  • This set of slot 15 and rod 26 forms a guiding device that allows, on the one hand, to avoid any risk of incorrect positioning of the refill in the cartridge and, on the other hand, to guide the refill all along of the cartridge.
  • This guiding device thus serves as a key, preventing the user to insert the refill in a position where the opening of the refill would not be in front of the receptacle of the cartridge.
  • the cover 14 is not necessarily present on the opening face 12b of the cartridge.
  • the cartridge of the system of the invention comprises a plug closing the receptacle and sealing the toner in the cartridge. If there is no seal, when the user wants to put the refill, he removes the cap and it enters directly the refill in the cartridge. As the cartridge is empty, the user has little risk of getting dirty. The operculum brings the same advantage of ensuring perfect cleanliness since the user is never in contact with the toner.
  • an adhesive tape may be placed at a joint of the two half-cylinders 25 and 22c.
  • this adhesive tape prevents accidental rotation of the piston in the piston body.
  • This adhesive tape must then be torn as it is inserted into the cartridge, to allow the rotation of the piston when the refill is in the cartridge.
  • the cartridge comprises, on one of the walls of the receptacle, a lug which ensures the tearing of the adhesive tape, all along the refill, at the time of introduction of said refill in the cartridge.
  • FIG. 4A and 4B show the front portion of the cartridge and refill system of the invention when the refill is introduced into the cartridge.
  • These figures show the flange 23 of the refill introduced into a device for holding the cartridge.
  • This holding device comprises clips 30 made on the opening face 12b of the cartridge. These clips can be fixed or overmolded on the contour of the opening face 12b of the cartridge.
  • These retaining clips form clips which are located opposite notches 31 made in the collar 23 of the refill.
  • the clips 30 and the notches 31 are made so that they face each other when the refill is in the closed position, as shown in FIG. Figure 4A .
  • the retaining clips 30 are no longer in front of the notches 31, but facing the part of the collar 23, as shown in FIG. Figure 4B . It is therefore impossible for a user who would pull on the collar 23 to pull out said flange of these clips 30.
  • the refill is locked inside the cartridge.
  • the retaining clips are also used to produce a non-return device represented on the figure 5 .
  • This anti-return device or anti-disassembly, is intended to prevent the user from turning the rotation lever 24 in the opposite direction (in the opposite direction as shown by the arrows on the figure 5 ) once the refill has been opened.
  • This non-return device comprises at least one pawl 32 made on the flange 23 of the refill.
  • This pawl 32 is a projection of square or rectangular shape, having an increasing thickness. More specifically, the surface of the projection forms a rising slope relative to the surface of the flange 23, ending in a right descending front.
  • the pawl 32 is inserted under one of the retaining clips by its thinnest side and then it is pushed under the clip until, finally, it exceeds the clip. The clip is then next to the right descending front of the ratchet. Thus, if the user wants to turn the handle in the opposite direction, the right front of the pawl 32 abuts against the clip 30, preventing rotation.
  • the Figures 6A and 6B show a one-way rotation device of the system of the invention.
  • This device consists of a pin 33 made inside the piston body 20, for example inside the ring 22b, and in a groove 34 made outside the piston 21.
  • the pin 33 fixed on the piston body or molded with the piston body. This pin is intended to be introduced into the groove 34 of the piston.
  • the groove 34 of the piston is formed on at least part of the circumference of the piston, corresponding to a half turn of rotation of the lever 24. Initially, when the refill is in the closed position, the pin 33 is at one end of the piston. When the piston rotates in the piston body, the pin 33 moves in the groove 34 in the direction of rotation allowed.
  • the pin 33 is in abutment against the edge of the groove 34, which prevents rotation in the opposite direction.
  • the groove being performed on only half of the circumference of the refill (which corresponds to half a turn of the handle), when the pin arrives at the other end of the groove, it stumbles on the edge of the throat.
  • the displacement of the piston is therefore limited in this direction as well, so that the piston can not be rotated more than 180 ° in the piston body. It is therefore impossible to rotate the piston past the open position of the refill.
  • the introduction of the refill in the cartridge is very simple. Simply remove the cap from the cartridge and introduce the refill into the cartridge by piercing the lid, if it exists, with a suitable tip attached to the refill. This tip does not need to be very sharp and is therefore not dangerous for the user. The refill is then inserted into the cartridge until the first flange of the refill is in the center of the opening face of the cartridge.
  • the introduction of the refill in the cartridge is very easy since it requires only two movements of the user to install it.
  • this implementation is secured by various devices, namely guide devices, locking, anti-return and rotation in one direction, which prevent any incorrect positioning or rotation of the refill in the cartridge.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Dry Development In Electrophotography (AREA)
EP13171318.2A 2003-12-23 2004-12-23 Tonernachfüllkartuschensystem und sein Umsetzungsverfahren Withdrawn EP2662733A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0351176A FR2864262B1 (fr) 2003-12-23 2003-12-23 Systeme de cartouche a recharge de toner et son procede de mise en oeuvre
EP04300941A EP1548519A3 (de) 2003-12-23 2004-12-23 Kartuschensystem mit Tonernachfull und Verfahren zur Durchführung

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP04300941.4 Division 2004-12-23
EP04300941A Division EP1548519A3 (de) 2003-12-23 2004-12-23 Kartuschensystem mit Tonernachfull und Verfahren zur Durchführung

Publications (2)

Publication Number Publication Date
EP2662733A2 true EP2662733A2 (de) 2013-11-13
EP2662733A3 EP2662733A3 (de) 2014-02-19

Family

ID=34531404

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13171318.2A Withdrawn EP2662733A3 (de) 2003-12-23 2004-12-23 Tonernachfüllkartuschensystem und sein Umsetzungsverfahren
EP04300941A Withdrawn EP1548519A3 (de) 2003-12-23 2004-12-23 Kartuschensystem mit Tonernachfull und Verfahren zur Durchführung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP04300941A Withdrawn EP1548519A3 (de) 2003-12-23 2004-12-23 Kartuschensystem mit Tonernachfull und Verfahren zur Durchführung

Country Status (2)

Country Link
EP (2) EP2662733A3 (de)
FR (1) FR2864262B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023018440A1 (en) * 2021-08-09 2023-02-16 Hewlett-Packard Development Company, L.P. Toner refill cartridge indicating whether toner has been discharged

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100892110B1 (ko) * 2008-02-22 2009-04-08 삼성전자주식회사 현상 카트리지, 이를 구비한 화상형성장치, 및화상형성장치의 인쇄방법
KR20190125106A (ko) * 2018-04-27 2019-11-06 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. 장착된 토너 카트리지에 리필 토너 공급
KR20200025336A (ko) * 2018-08-30 2020-03-10 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. 토너 충전부의 유입 셔터를 선택적으로 로킹하는 구조
CN110187622B (zh) * 2019-06-11 2024-02-06 珠海市汇威精密制造有限公司 一种碳粉筒的加粉组件及碳粉筒
KR20210035573A (ko) * 2019-09-24 2021-04-01 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. 토너 자동 주입이 가능한 구조를 갖는 토너 리필 카트리지

Citations (2)

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Publication number Priority date Publication date Assignee Title
US5594535A (en) 1995-11-07 1997-01-14 Hewlett-Packard Company Refillable toner cartridge
US5907747A (en) 1998-02-02 1999-05-25 Ward Sealing, Inc. Prefilled, presealed toner cartridge insert

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JPS6087371A (ja) * 1983-10-20 1985-05-17 Canon Inc 現像器
JPS60147770A (ja) * 1984-01-11 1985-08-03 Konishiroku Photo Ind Co Ltd 静電荷像現像剤容器
JPS60254067A (ja) * 1984-05-30 1985-12-14 Konishiroku Photo Ind Co Ltd 現像剤容器
JPH07111599B2 (ja) * 1987-01-30 1995-11-29 三田工業株式会社 現像装置
JPS63208073A (ja) * 1987-02-25 1988-08-29 Fuji Xerox Co Ltd トナ−カ−トリツジ補給装置
JPS63217385A (ja) * 1987-03-06 1988-09-09 Nec Corp トナカ−トリツジ
JPH01211786A (ja) * 1988-02-19 1989-08-24 Minolta Camera Co Ltd 複写機
JPH0720679Y2 (ja) * 1988-03-01 1995-05-15 株式会社リコー トナー補給装置及びそのトナーカートリッジ
JPH0725806Y2 (ja) * 1989-10-19 1995-06-07 沖電気工業株式会社 トナーカートリッジ
US5887232A (en) * 1995-12-08 1999-03-23 Hewlett-Packard Company Apparatus for dispensing toner in an electrophotographic printing system
JP3602008B2 (ja) * 1999-07-30 2004-12-15 株式会社沖データ トナーカートリッジおよびその製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5594535A (en) 1995-11-07 1997-01-14 Hewlett-Packard Company Refillable toner cartridge
US5907747A (en) 1998-02-02 1999-05-25 Ward Sealing, Inc. Prefilled, presealed toner cartridge insert

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023018440A1 (en) * 2021-08-09 2023-02-16 Hewlett-Packard Development Company, L.P. Toner refill cartridge indicating whether toner has been discharged
US12235596B2 (en) 2021-08-09 2025-02-25 Hewlett-Packard Development Company, L.P. Toner refill cartridge indicating whether toner has been discharged

Also Published As

Publication number Publication date
EP2662733A3 (de) 2014-02-19
FR2864262A1 (fr) 2005-06-24
FR2864262B1 (fr) 2006-03-24
EP1548519A2 (de) 2005-06-29
EP1548519A3 (de) 2010-04-14

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