KR20070097994A - Waste toner collecting unit of developing cartridge - Google Patents

Waste toner collecting unit of developing cartridge Download PDF

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Publication number
KR20070097994A
KR20070097994A KR1020060029090A KR20060029090A KR20070097994A KR 20070097994 A KR20070097994 A KR 20070097994A KR 1020060029090 A KR1020060029090 A KR 1020060029090A KR 20060029090 A KR20060029090 A KR 20060029090A KR 20070097994 A KR20070097994 A KR 20070097994A
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South Korea
Prior art keywords
waste toner
empty space
collection
developing cartridge
collecting box
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KR1020060029090A
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Korean (ko)
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권대섭
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삼성전자주식회사
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Priority to KR1020060029090A priority Critical patent/KR20070097994A/en
Publication of KR20070097994A publication Critical patent/KR20070097994A/en

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    • 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
    • G03G21/10—Collecting or recycling waste developer
    • G03G21/12—Toner waste containers
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Sustainable Development (AREA)
  • Cleaning In Electrography (AREA)

Abstract

A waste toner collecting unit for a developing cartridge is provided to restrain the thermal modification of a waste toner collecting box and smoothly collect a waste toner. An empty space for containing a waste toner is formed in a collecting box(131). A cleaning blade(132), installed in the collecting box, cleans out the waste toner which remains on a surface of a photosensitive body to the empty space. A sealing member(133) closes up between the photosensitive body and the empty space to prevent the leakage of the waste toner collected in the collecting box. Reinforcing ribs(135a,135b) are stood up in the empty space to restrain the modification of the collecting box.

Description

현상카트리지의 폐토너수거부{Waste toner collecting unit of developing cartridge}Waste toner collecting unit of developing cartridge

도 1은 일반적인 전자사진방식 화상형성장치의 내부 구조를 도시한 도면,1 is a view showing the internal structure of a general electrophotographic image forming apparatus;

도 2는 종래의 현상카트리지에 채용된 폐토너수거부를 도시한 도면,2 is a view showing a waste toner collection portion employed in a conventional developing cartridge;

도 3은 본 발명에 따른 폐토너수거부를 도시한 도면.Figure 3 is a view showing a waste toner collection unit according to the present invention.

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

110...감광드럼(감광체) 130...폐토너수거부110 Photosensitive drum 130 Waste toner collection

131...수거함 132...클리닝블레이드131 ... trash box 132 ... cleaning blade

133...실링부재 134...연통로133 ... sealing member 134 ... communication path

135a,135b,135c...보강리브135a, 135b, 135c ... reinforcement rib

본 발명은 전자사진방식 화상형성장치에 채용되는 현상카트리지 중 감광체 표면에 잔류하는 폐토너를 수거하는 폐토너수거부에 관한 것이다. The present invention relates to a waste toner collecting unit for collecting waste toner remaining on a surface of a photoconductor among developing cartridges employed in an electrophotographic image forming apparatus.

일반적으로 레이저 빔 프린터와 같은 전자사진방식 화상형성장치에는, 도 1에 도시된 바와 같이, 레이저스캐너(20)에 의해 표면에 정전잠상(electrostatic latent image)이 형성되는 감광드럼(11)과, 내부에 수용된 토너를 감광드럼(11)에 공급하여 그 정전잠상을 눈에 보이는 화상으로 현상하는 현상부(12) 및, 현상에 기여하지 못하고 감광드럼(11) 표면에 남은 폐토너를 수거하는 폐토너수거부(13) 등을 갖춘 현상카트리지(10)가 구비되어 있다. 따라서, 대전롤러(14)에 의해 일정 전위로 대전된 감광드럼(11) 표면에 레이저스캐너(20)가 광을 주사하여 정전잠상이 만들어지면, 현상부(12)의 현상롤러(15)에 붙어있던 토너입자가 상기 정전잠상으로 옮겨 붙으면서 정전잠상이 가시 화상으로 현상되고, 그 현상된 화상은 용지(S)에 찍힌 다음 정착기(30)에서 완전히 고착되는 식으로 인쇄가 진행된다. In general, an electrophotographic image forming apparatus such as a laser beam printer includes a photosensitive drum 11 having an electrostatic latent image formed on a surface thereof by a laser scanner 20, as shown in FIG. Is supplied to the photosensitive drum 11 to develop the electrostatic latent image as a visible image, and a waste toner which collects the waste toner remaining on the surface of the photosensitive drum 11 without contributing to the development. A developing cartridge 10 having a collecting part 13 and the like is provided. Therefore, when the laser scanner 20 scans the light on the surface of the photosensitive drum 11 charged by the charging roller 14 to a predetermined potential to produce an electrostatic latent image, it adheres to the developing roller 15 of the developing part 12. As the toner particles are transferred to the electrostatic latent image, the electrostatic latent image is developed into a visible image, and the developed image is printed on the paper S and then completely fixed in the fixing unit 30.

한편, 상기 폐토너수거부(13)의 구조를 좀 더 자세히 보면, 도 2에 도시된 바와 같이 현상에 기여하지 못하고 감광드럼(11) 표면에 남아 있는 폐토너를 쓸어내는 클리닝블레이드(13b)와, 쓸려나온 폐토너를 수용하는 수거함(13a)과, 수거된 폐토너가 새어나가지 않도록 하부를 막아주는 실링부재(13c)가 구비되어 있다. 따라서, 현상작업이 진행되면서 감광드럼(11)에 남은 폐토너는 상기 클리닝블레이드(13b)에 의해 떨어져서 수거함(13a)에 모이게 되며, 실링부재(13c)가 누출을 막아주게 된다. On the other hand, when looking at the structure of the waste toner collecting unit 13 in more detail, as shown in Figure 2 and the cleaning blade 13b for sweeping the waste toner remaining on the surface of the photosensitive drum 11 and not contribute to the phenomenon; , A collection box 13a for accommodating the waste toner that has been swept away, and a sealing member 13c that prevents the collected waste toner from leaking out. Therefore, the waste toner remaining in the photosensitive drum 11 is collected by the cleaning blade 13b and collected in the collection box 13a as the developing operation progresses, and the sealing member 13c prevents leakage.

그런데, 도 1에 도시된 바와 같이 이러한 현상카트리지(10)의 폐토너수거부(13)는 높은 온도로 작동되는 정착기(30)에 인접하게 배치되어 있다. 따라서, 인쇄작업이 진행되면 고온에 노출될 수밖에 없는데, 이때 상기 수거함(13a)이 열에 의해 변형이 일어날 수 있다. 통상 수거함(13a)은 플라스틱 재질로 만드는데, 이것에 고온에 장시간 노출되면 변형이 일어나기 쉽다. 특히, 속이 빈 공간이기 때 문에, 양단측 테두리 부위보다 상대적으로 강성이 약한 가운데 부분이 빈 공간 안으로 휘어져 들어가는 변형이 많이 생긴다. 이렇게 되면, 이 수거함(13a)에 결합되어 있는 클리닝블레이드(13b)나 실링부재(13c)가 감광드럼(11)의 표면에 제대로 밀착되지를 못하는 문제가 발생한다. 즉, 클리닝블레이드(13b)나 실링부재(13c)는 감광드럼(11)에 완전히 밀착이 되어야만 폐토너의 수거나 누출 방지의 기능을 충분히 수행할 수 있는데, 수거함(13a)이 변형되면서 일부 구간이라도 틈이 생기게 되면 제기능을 발휘하지 못하게 된다. However, as illustrated in FIG. 1, the waste toner collecting unit 13 of the developing cartridge 10 is disposed adjacent to the fixing unit 30 operated at a high temperature. Therefore, when the printing operation is in progress is forced to be exposed to high temperature, the collection 13a may be deformed by the heat. The collection container 13a is usually made of plastic, which is prone to deformation when exposed to high temperatures for a long time. In particular, because the hollow space, the deformation of the center portion is bent into the hollow space relatively weak compared to the edge portion of both ends. In this case, a problem arises in that the cleaning blade 13b or the sealing member 13c coupled to the collection box 13a does not adhere properly to the surface of the photosensitive drum 11. That is, the cleaning blade 13b or the sealing member 13c may be fully in close contact with the photosensitive drum 11 to sufficiently perform the function of preventing or leaking the waste toner, even if the collection box 13a is deformed. If there is a gap, it will not function properly.

따라서, 폐토너의 수거와 실링의 안정적인 운영을 보장하기 위해서는 상기와 같은 폐토너수거부의 열변형에 대한 대책이 필요하다. Therefore, in order to ensure the stable operation of the waste toner collection and sealing, it is necessary to take measures against thermal deformation of the waste toner collection unit as described above.

본 발명은 상기의 필요성을 감안하여 창출된 것으로서, 폐토너수거함의 열변형을 억제할 수 있으며, 폐토너의 수거도 원활하게 진행할 수 있도록 개선된 현상카트리지의 폐토너수거부를 제공하는데 그 목적이 있다.The present invention has been made in view of the above necessity, and can suppress the thermal deformation of the waste toner container and provide an improved waste toner collection part of the developing cartridge so that the collection of the waste toner can proceed smoothly. have.

상기의 목적을 달성하기 위한 본 발명에 따른 현상카트리지의 폐토너수거부는, 폐토너가 수용될 빈 공간이 마련된 수거함과, 상기 수거함에 설치되어 감광체 표면에 남아 있는 폐토너를 상기 빈 공간으로 쓸어내는 클리닝블레이드와, 상기 수거함에 모인 폐토너가 새어나가지 않게 상기 감광체와 상기 빈 공간 사이를 막아주는 실링부재 및, 상기 수거함의 변형을 억제하기 위해 상기 빈 공간에 세워진 보강리브를 구비하는 것을 특징으로 한다.The waste toner collection part of the developing cartridge according to the present invention for achieving the above object is a collection box provided with empty space for accommodating waste toner, and the waste toner installed on the collection box and remaining on the photoreceptor surface is swept away into the empty space. It includes a cleaning blade, a sealing member for preventing the waste toner collected in the collection from leaking out between the photosensitive member and the empty space, and a reinforcing rib erected in the empty space to suppress the deformation of the collection box. do.

여기서, 상기 보강리브는 다수개가 설치되고, 그 중 적어도 일부는 그 양측 공간을 독립된 공간으로 구획하지 않고 연통시킬 수 있도록 개방형으로 형성되는 것이 바람직하다.Here, the plurality of reinforcing ribs are provided, it is preferable that at least some of them are formed in an open type so as to be able to communicate without partitioning both sides of the space into an independent space.

이하 첨부된 도면을 참조하면서 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 안 되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다. 따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

도 3은 본 발명에 따른 현상카트리지의 폐토너수거부(130)를 도시한 것이다. 3 illustrates a waste toner collecting unit 130 of a developing cartridge according to the present invention.

도시된 바와 같이 본 발명의 폐토너수거부(130)는, 폐토너가 수용될 빈 공간(131a)이 마련된 수거함(131)과, 그 수거함(131)의 상측에 설치되어 감광드럼(110)의 표면에 남아 있는 폐토너를 상기 빈 공간으로 쓸어내는 클리닝블레이드(132)와, 상기 수거함(131)에 모인 폐토너가 새어나가지 않게 감광드럼(110)과 상기 빈 공간(131a) 사이를 막아주는 실링부재(133)를 구비하고 있다. 따라서, 종래와 마찬가지로 감광드럼(110)에 남은 폐토너는 상기 클리닝블레이드(132)에 의해 떨어져서 수거함(131)에 모이게 되며, 실링부재(133)가 누출을 막아주게 된다. As illustrated, the waste toner collection unit 130 of the present invention is provided with a collection box 131 provided with an empty space 131a to accommodate the waste toner, and installed above the collection box 131 of the photosensitive drum 110. A sealing blade 132 which sweeps the waste toner remaining on the surface into the empty space, and a sealing that blocks the photosensitive drum 110 and the empty space 131a so that the waste toner collected in the collection box 131 does not leak. The member 133 is provided. Therefore, the waste toner remaining in the photosensitive drum 110 is collected by the cleaning blade 132 and collected in the collection box 131 as in the related art, and the sealing member 133 prevents leakage.

그리고, 상기 수거함(131) 안에는 열변형을 억제하기 위한 보강리브(135a,135b,135c)가 여러 개 세워져 있다. 즉, 인접한 정착기(30; 도 1 참조)로부터 열을 받아서 중앙부가 찌그러져 들어갈 가능성이 많기 때문에, 빈 공간의 여러 개소에 보강리브(135a,135b,135c)를 세워서 변형을 방지한 것이다. 이렇게 되면, 아무리 고열의 환경에 노출된다고 해도 보강리브(135a,135b,135c)가 견고하게 지탱하고 있기 때문에 여간해서는 변형이 일어나지 않는다. 따라서, 클리닝블레이드(132)와 실링부재(133)도 감광드럼(110)의 표면에 견고하게 밀착된 상태를 유지할 수 있게 되어, 안정적인 폐토너수거부(130)의 기능이 보장될 수 있다. In the collection box 131, a plurality of reinforcing ribs 135a, 135b, and 135c for suppressing thermal deformation are erected. That is, since the center part is likely to be crushed by receiving heat from the adjacent fixing unit 30 (see FIG. 1), the reinforcing ribs 135a, 135b, and 135c are erected at various places in the empty space to prevent deformation. In this case, even if exposed to a high temperature environment, since the reinforcing ribs 135a, 135b, and 135c are firmly supported, deformation does not occur over time. Therefore, the cleaning blade 132 and the sealing member 133 can also be maintained in a tightly adhered state to the surface of the photosensitive drum 110, it is possible to ensure the function of the stable waste toner collecting unit 130.

한편, 상기 보강리브(135a,135b,135c)는 상기 빈공간(131a)을 독립된 좌우 공간으로 구획하는 밀폐식으로 세우는 것보다, 도면과 같이 좌우를 연통시킬 수 있는 연통로(134)가 생기도록 개방형으로 세우는 것이 바람직하다. 왜냐하면, 현상작업을 진행하다 보면 화상의 규격 차이 또는 화상 자체의 크기 차이 등에 의해서 감광드럼(110)의 어느 한 쪽 부위에만 계속 토너가 묻을 수 있다. 그렇게 되면 폐토너도 그쪽에서만 계속 나오기 때문에, 수거함(131)의 한쪽에만 폐토너가 찰 수 있다. 이때 만일 빈 공간을 독립된 공간으로 가르는 막힌 형태의 보강리브(135a)로만 되어 있다면 폐토너가 고르게 퍼지지 못하고 특정 공간에만 가득 차서 문제가 생길 수 있지만, 도면과 같이 적어도 몇 개소에 연통로(134)를 마련해놓으면 폐토너가 비교적 고르게 분산이 되므로 폐토너의 조기 충전에 따른 문제는 억제할 수 있다. On the other hand, the reinforcing ribs (135a, 135b, 135c) is to establish a communication path 134 that can communicate left and right as shown in the drawing, rather than standing in a closed manner to partition the empty space (131a) into independent left and right spaces. It is preferable to stand open. This is because, while developing, the toner may continue to be applied to only one portion of the photosensitive drum 110 due to a difference in size of the image or a difference in size of the image itself. Then, since the waste toner continues to come out only there, the waste toner may be filled on only one side of the collection box 131. In this case, if only the reinforcing ribs 135a having a closed shape are divided into independent spaces, the waste toner may not spread evenly and may be filled only in a specific space, but as shown in the drawing, the communication path 134 may be formed at at least several places. If it is prepared, the waste toner is relatively evenly dispersed, so that the problems caused by the early filling of the waste toner can be suppressed.

그러므로, 수거함(131)의 열변형을 억제하여 안정된 폐토너 수거작업을 보장 하면서, 폐토너가 한 쪽에만 치우쳐서 차게 되는 우려까지 해소한 구조가 구현된 것이다. Therefore, while maintaining the stable waste toner collection operation by suppressing the thermal deformation of the collection box 131, a structure that eliminates the concern that the waste toner is filled with only one side is offset.

상술한 바와 같은 본 발명에 따른 현상카트리지의 폐토너수거부는, 보강리브를 세워서 열변형에 따른 작동불량의 문제점을 해소하며, 또한 폐토너가 수거함 안에 고르게 수거될 수 있는 조건까지 제공한다. The waste toner collecting part of the developing cartridge according to the present invention as described above solves the problem of malfunction due to thermal deformation by raising the reinforcing ribs, and also provides a condition in which the waste toner can be collected evenly in the collecting box.

이상과 같이, 본 발명은 비록 한정된 실시예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술적 사상과 아래에 기재될 청구범위의 균등 범위 내에서 다양한 수정 및 변형이 가능함은 물론이다. As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

Claims (2)

폐토너가 수용될 빈 공간이 마련된 수거함과,A collection bin with an empty space for the waste toner, 상기 수거함에 설치되어 감광체 표면에 남아 있는 폐토너를 상기 빈 공간으로 쓸어내는 클리닝블레이드와, A cleaning blade installed in the collection box to sweep the waste toner remaining on the surface of the photoconductor into the empty space; 상기 수거함에 모인 폐토너가 새어나가지 않게 상기 감광체와 상기 빈 공간 사이를 막아주는 실링부재 및,A sealing member which closes the space between the photoreceptor and the empty space so that the waste toner collected in the collection container does not leak; 상기 수거함의 변형을 억제하기 위해 상기 빈 공간에 세워진 보강리브를 구비하는 것을 특징으로 하는 현상카트리지의 폐토너수거부.The waste toner collection unit of the developing cartridge, characterized in that it comprises a reinforcing rib erected in the empty space to suppress the deformation of the collection box. 제1항에 있어서, The method of claim 1, 상기 보강리브는 다수개가 설치되며, 그 중 적어도 일부는 그 양측 공간을 독립된 공간으로 구획하지 않고 연통시킬 수 있도록 개방형으로 형성된 것을 특징으로 하는 현상카트리지의 폐토너수거부.A plurality of reinforcing ribs are installed, at least some of which are formed to be open so that the two sides of the communication without partitioning into separate spaces, the waste toner collection part of the developing cartridge.
KR1020060029090A 2006-03-30 2006-03-30 Waste toner collecting unit of developing cartridge KR20070097994A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101042641B1 (en) * 2007-07-18 2011-06-20 삼성전자주식회사 Developing apparatus, Image forming apparatus having the same, and Assembling method for a developing apparatus
US8422908B2 (en) 2010-01-21 2013-04-16 Samsung Electronics Co., Ltd. Developing device and image forming apparatus including the same
US8422893B2 (en) 2010-01-21 2013-04-16 Samsung Electronics Co., Ltd Developer and image forming apparatus including the same
US8437680B2 (en) 2010-01-25 2013-05-07 Samsung Electronics Co,. Ltd Developer and image forming apparatus including the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101042641B1 (en) * 2007-07-18 2011-06-20 삼성전자주식회사 Developing apparatus, Image forming apparatus having the same, and Assembling method for a developing apparatus
US8422908B2 (en) 2010-01-21 2013-04-16 Samsung Electronics Co., Ltd. Developing device and image forming apparatus including the same
US8422893B2 (en) 2010-01-21 2013-04-16 Samsung Electronics Co., Ltd Developer and image forming apparatus including the same
US8831442B2 (en) 2010-01-21 2014-09-09 Samsung Electronics Co., Ltd. Developer and image forming apparatus including the same
US8437680B2 (en) 2010-01-25 2013-05-07 Samsung Electronics Co,. Ltd Developer and image forming apparatus including the same

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