KR101123721B1 - Image forming apparatus - Google Patents

Image forming apparatus Download PDF

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Publication number
KR101123721B1
KR101123721B1 KR1020050091853A KR20050091853A KR101123721B1 KR 101123721 B1 KR101123721 B1 KR 101123721B1 KR 1020050091853 A KR1020050091853 A KR 1020050091853A KR 20050091853 A KR20050091853 A KR 20050091853A KR 101123721 B1 KR101123721 B1 KR 101123721B1
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South Korea
Prior art keywords
unit
cover
transfer unit
fixing
developing unit
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KR1020050091853A
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Korean (ko)
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KR20070036872A (en
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주정용
박문배
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삼성전자주식회사
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Priority to KR1020050091853A priority Critical patent/KR101123721B1/en
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Publication of KR101123721B1 publication Critical patent/KR101123721B1/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
    • G03G21/16—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
    • 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
    • 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
    • G03G21/1661—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
    • G03G21/1676—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 developer unit
    • 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
    • G03G21/168—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 transfer unit

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Electrophotography Configuration And Component (AREA)

Abstract

본 발명에 의한 화상형성장치는 장치 본체; 상기 장치 본체에 회동 개폐가능하게 설치된 커버; 상기 장치 본체에 설치된 현상유닛; 상기 커버에 설치된 전사유닛; 및 상기 커버의 회동 개폐동작에 연동하여 상기 현상유닛과 상기 전사유닛 간의 위치를 고정하는 위치고정유닛;을 포함한다. 따라서, 커버를 단지 닫는 조작만으로 현상유닛과 전사유닛 간의 위치 고정이 가능함으로써, 양질의 화상을 얻을 수 있다.An image forming apparatus according to the present invention comprises: an apparatus main body; A cover installed rotatably in the apparatus body; A developing unit installed in the apparatus main body; A transfer unit installed in the cover; And a position fixing unit configured to fix a position between the developing unit and the transfer unit in association with a rotation opening and closing operation of the cover. Therefore, the position fixing between the developing unit and the transfer unit is possible only by the operation of closing the cover, whereby a good image can be obtained.

화상형성장치, 현상유닛, 전사유닛, 감광드럼, 커버 Image forming apparatus, developing unit, transfer unit, photosensitive drum, cover

Description

화상형성장치{Image forming apparatus}Image forming apparatus

도 1은 본 발명의 일 실시예에 의한 화상형성장치를 개략적으로 나타낸 도면,1 is a view schematically showing an image forming apparatus according to an embodiment of the present invention;

도 2는 본 발명의 요부를 확대하여 나타낸 도면, 그리고,2 is an enlarged view of the main portion of the present invention, and

도 3은 본 발명에 의한 화상형성장치의 동작을 나타낸 도면이다.3 is a view showing the operation of the image forming apparatus according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

10 : 장치 본체 20 : 커버 10: device body 20: cover

30 : 현상유닛 40 : 전사유닛 30: developing unit 40: transfer unit

50 : 위치고정유닛 51 : 고정돌기부 50: position fixing unit 51: fixing projection

51a.51b : 제 1 요철부 52 : 고정홈부 51a.51b: first uneven portion 52: fixing groove portion

52a, 52b : 제 2 요철부 52a, 52b: second uneven portion

본 발명은 화상형성장치에 관한 것이다.The present invention relates to an image forming apparatus.

일반적으로 레이저 프린터, 복사기, 스캐너, 복합기 등과 같은 화상형성장치는 감광드럼의 정전잠상에 현상제, 예컨대 토너를 부착시켜 현상하기 위한 현상유 닛과, 상기 감광드럼의 토너 화상을 전사하기 위한 전사유닛 등을 구비한다. 이러한 상기 현상유닛과 상기 전사유닛은 장치 본체와 커버에 각각 착탈가능하게 설치되며 서로 대향되는 구조를 갖는다. 장치 본체의 일측면에 개방된 커버를 닫으면 상기 현상유닛에 구비된 감광드럼이 상기 전사유닛의 전사벨트에 대향하여 접촉된 상태에서 상기 감광드럼의 토너 화상을 전사한다.In general, an image forming apparatus such as a laser printer, a copier, a scanner, a multifunction printer, or the like has a developing unit for developing by attaching a developer, for example, toner, to an electrostatic latent image of a photosensitive drum, and a transfer unit for transferring a toner image of the photosensitive drum. And the like. The developing unit and the transfer unit are detachably installed in the apparatus body and the cover, respectively, and have a structure opposite to each other. When the cover opened on one side of the main body of the apparatus is closed, the toner image of the photosensitive drum is transferred while the photosensitive drum provided in the developing unit is in contact with the transfer belt of the transfer unit.

그러나, 상기한 바와 같은 일반적인 화상형성장치는 상기 현상유닛과 상기 전사유닛 간에 위치가 고정되어 있지 않기 때문에, 상기 본체와 상기 커버가 외력이나 환경변화에 의하여 변형될 경우, 상기 본체와 상기 커버 각각에 고정되어 있는 상기 현상유닛과 상기 전사유닛도 서로 위치가 틀어지게 된다. 이에 따라 전사 불안정, 화상 틀어짐 등 화상의 문제가 있다.      However, in the general image forming apparatus as described above, since the position is not fixed between the developing unit and the transfer unit, when the main body and the cover are deformed by external force or environmental change, The developing unit and the transfer unit which are fixed are also displaced from each other. As a result, there is a problem of images such as transfer instability and image distortion.

본 발명은 상기와 같은 점을 감안하여 안출한 것으로, 현상유닛과 전사유닛 간의 위치 고정을 통해 양질의 화상을 얻을 수 있는 화상형성장치를 제공하는데 그 목적이 있다.The present invention has been made in view of the above, and an object thereof is to provide an image forming apparatus capable of obtaining a high quality image by fixing a position between a developing unit and a transfer unit.

상기 목적을 달성하기 위한 본 발명에 의한 화상형성장치는, 장치 본체, 상기 장치 본체에 회동 개폐가능하게 설치된 커버, 상기 장치 본체에 설치된 현상유닛, 상기 커버에 설치된 전사유닛 및 상기 커버의 회동 개폐동작에 연동하여 상기 현상유닛과 상기 전사유닛 간의 위치를 고정하는 위치고정유닛을 포함하고, 상기 위치고정유닛은, 상기 현상유닛에 구비된 고정돌기부 및 상기 고정돌기부가 삽입되도록 상기 전사유닛에 구비된 고정홈부를 포함하고, 상기 고정돌기부는 제 1 요철부가 구비되고, 상기 고정홈부는 제 2 요철부가 구비되며, 상기 제 1 요철부와 상기 제 2 요철부가 서로 교번적으로 맞물려 고정되는 것을 특징으로 한다.An image forming apparatus according to the present invention for achieving the above object, the apparatus main body, a cover provided to be rotatable open and close to the apparatus main body, a developing unit provided on the apparatus main body, a transfer unit provided on the cover and the rotation opening and closing operation of the cover And a position fixing unit for fixing a position between the developing unit and the transfer unit in association with each other, wherein the position fixing unit is fixed to the transfer unit so that the fixing protrusion and the fixing protrusion provided in the developing unit are inserted. And a groove, wherein the fixing protrusion has a first uneven portion, the fixing groove has a second uneven portion, and the first uneven portion and the second uneven portion are alternately engaged with each other to be fixed.

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또한, 상기 제 1 및 제 2 요철부는 요철부위가 라운드진 것이 바람직하다.In addition, the first and second uneven portion is preferably rounded uneven portion.

본 발명의 상기와 같은 목적 및 다른 특징들은 첨부도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명함으로써 더욱 명백해질 것이다. 참고로 본 발명을 설명함에 있어서 관련된 공지 기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.      The above objects and other features of the present invention will become more apparent by describing the preferred embodiments of the present invention in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail to avoid unnecessarily obscuring the subject matter of the present invention.

첨부한 도 1은 본 발명의 일 실시예에 의한 화상형성장치를 개략적으로 나타낸 도면, 그리고, 도 2는 본 발명의 요부를 확대하여 나타낸 도면이다.1 is a view schematically showing an image forming apparatus according to an embodiment of the present invention, and FIG. 2 is an enlarged view of the main part of the present invention.

도 1 및 도 2에 도시된 바와 같이, 본 발명의 일 실시예에 의한 화상형성장치는 장치 본체(10), 커버(20), 현상유닛(30), 전사유닛(40) 및 위치고정유닛(50)을 포함한다.       1 and 2, the image forming apparatus according to an embodiment of the present invention is the apparatus main body 10, the cover 20, the developing unit 30, the transfer unit 40 and the position fixing unit ( 50).

상기 장치 본체(10)는 화상정보에 근거하여 감광드럼(31)에 정전잠상을 형성하는 노광유닛(미도시)과, 상기 감광드럼(31)의 정전잠상에 현상제를 부착시켜 현상하는 현상유닛(30)과, 전사유닛(40)에 의해 전사된 화상을 정착시키는 정착유닛(미도시) 등을 구비한다.The apparatus main body 10 includes an exposure unit (not shown) for forming an electrostatic latent image on the photosensitive drum 31 based on the image information, and a developing unit for attaching and developing a developer on the electrostatic latent image of the photosensitive drum 31. 30 and a fixing unit (not shown) for fixing the image transferred by the transfer unit 40, and the like.

상기 커버(20)는 장치 본체(10)에 하부가 힌지(10a)로 결합되어 회동 개폐가능하게 설치되며, 장치 본체(10)에 록킹되도록 록(LOCK)부(미도시)가 구비된다. 도 면에 도시된 바 없지만, 커버(20)의 내측에는 전사유닛(40)이 착탈가능하게 설치되는 안착부가 구비되며, 전사유닛(40)을 탄성지지하는 탄성부재가 구비된다.The cover 20 is coupled to the device body 10 by a hinge 10a and is installed to be rotatable open and close, and is provided with a lock part (not shown) to be locked to the device body 10. Although not shown in the drawing, the inside of the cover 20 is provided with a mounting portion detachably installed, the transfer unit 40, the elastic member for elastically supporting the transfer unit 40 is provided.

상기 현상유닛(30)은 감광드럼(31)의 정전잠상에 현상제, 예컨대 옐로우(YELLOW), 마젠타(MAGENTA), 시안(CYAN), 블랙(BLACK)의 토너를 부착시켜 현상하기 위한 것이다. 도면에 도시된 바 없지만, 현상유닛(30)은 각 색의 토너를 수용한 4개의 현상제 수용부와, 정전잠상에 상기 토너를 공급하는 현상롤러와, 상기 토너를 상기 현상롤러로 공급하는 공급롤러와, 현상롤러 표면의 균일한 토너층을 형성하기 위한 층규제 블레이드를 구비한다. 이러한 현상유닛(30)은 일반적으로 감광드럼(31)과 일체형 구조이며, 전사유닛(40)에 대향되도록 장치 본체(10)에 상하로 4개(30a,30b,30c,30d)가 배치되어 착탈가능하게 설치된다.The developing unit 30 is to develop by attaching a developer, for example, yellow (YELLOW), magenta (MAGENTA), cyan (CYAN), black (BLACK) to the electrostatic latent image of the photosensitive drum (31). Although not shown in the drawing, the developing unit 30 includes four developer accommodating portions accommodating toners of each color, a developing roller for supplying the toner to an electrostatic latent image, and a supply for supplying the toner to the developing roller. And a layer regulating blade for forming a uniform toner layer on the surface of the developing roller. The developing unit 30 is generally integrated with the photosensitive drum 31, and four (30a, 30b, 30c, 30d) are arranged in the apparatus main body 10 up and down so as to face the transfer unit (40). It is possible to install.

상기 전사유닛(40)은 감광드럼(31)의 토너 화상을 전사받기 위한 것이다. 도면에 도시된 바 없지만, 전사유닛(40)은 감광드럼(31)에서 화상을 전사받는 무한궤도상의 전사벨트와, 상기 전사벨트를 주행가능하게 지지하는 복수의 롤러를 구비한다. 이러한 전사유닛(40)은 상기 탄성부재에 의해 지지된 상태로 커버(20)의 안착부에 착탈가능하게 설치된다.The transfer unit 40 is for receiving a toner image of the photosensitive drum 31. Although not shown in the drawing, the transfer unit 40 includes a transfer belt on an endless track receiving an image transferred from the photosensitive drum 31, and a plurality of rollers to support the transfer belt in a movable manner. The transfer unit 40 is detachably installed in the seating portion of the cover 20 in a state supported by the elastic member.

상기 위치고정유닛(50)은 커버(20)의 회동 개폐동작에 연동하여 현상유닛(30)과 전사유닛(40) 간의 위치를 고정하기 위한 것이다. 위치고정유닛(50)은 현상유닛(30)에 구비된 고정돌기부(51)와, 고정돌기부(51)가 삽입되도록 전사유닛(40)에 구비된 고정홈부(52)를 포함한다. 바람직하게 고정돌기부(51)는 현상유닛(30)의 하우징 양측면의 선단에 구비되고, 고정홈부(52)는 전사유닛(40) 하우징 양측면에 구비된다. 고정돌기부(51)는 상하부에 제 1 요철부(51a,51b)가 각각 구비되고, 고정홈부(52)는 상하부에 제 2 요철부(52a,52b)가 각각 구비되어, 제 1 및 제 2 요철부(51a,51b)(52a,52b)가 서로 교번적으로 맞물려 고정된다. 바람직하게 제 1 및 제 2 요철부(51a,51b)(52a,52b)는 각각 복수의 반원 또는 타원형상의 돌기이다.The position fixing unit 50 is for fixing the position between the developing unit 30 and the transfer unit 40 in conjunction with the rotation opening and closing operation of the cover 20. The position fixing unit 50 includes a fixing protrusion 51 provided in the developing unit 30 and a fixing groove 52 provided in the transfer unit 40 to insert the fixing protrusion 51. Preferably, the fixing protrusion 51 is provided at the front end of both sides of the housing of the developing unit 30, the fixing groove 52 is provided on both sides of the housing of the transfer unit (40). The fixing protrusions 51 are provided with first uneven portions 51a and 51b at upper and lower portions, respectively, and the fixing grooves 52 are provided with second uneven portions 52a and 52b at upper and lower portions, respectively. The portions 51a and 51b 52a and 52b are alternately engaged with each other and fixed. Preferably, the first and second uneven portions 51a and 51b and 52a and 52b are a plurality of semicircular or elliptical protrusions, respectively.

상기와 같이 구성된 본 발명의 일 실시예에 의한 화상형성장치는 장치 본체(10)의 일측면에 개방된 커버(20)를 닫으면, 커버(20)는 힌지(10a)를 중심으로 회동하여 장치 본체(10)에 록킹된다. 이때 장치 본체(10)의 현상유닛(30)에 구비된 고정돌출부(51)가 커버의 전사유닛(40)에 구비된 고정홈부(52)에 삽입되며, 고정돌출부(51)의 제 1 요철부(51a,51b)와 고정홈부(52)의 제 2 요철부(52a,52b)가 서로 교번적으로 맞물려 고정된다. 즉, 사용자가 커버(20)를 단지 닫는 조작만으로 현상유닛(30)과 전사유닛(40) 간의 위치 고정이 가능하다. 이에 따라 장치 본체(10)와 커버(20)가 외력이나 환경변화에 의하여 변형될 경우에도, 현상유닛(30)과 전사유닛(40)은 서로 위치가 틀어지지 않게 됨으로써, 본 발명 화상형성장치는 양질의 화상을 얻을 수 있다.In the image forming apparatus according to the exemplary embodiment of the present invention configured as described above, when the cover 20 opened on one side of the apparatus main body 10 is closed, the cover 20 rotates about the hinge 10a and the apparatus main body. Locked at (10). At this time, the fixed protrusion 51 provided in the developing unit 30 of the apparatus main body 10 is inserted into the fixing groove 52 provided in the transfer unit 40 of the cover, and the first uneven portion of the fixed protrusion 51 is provided. 51a and 51b and the 2nd uneven | corrugated parts 52a and 52b of the fixing groove part 52 are engaged with each other, and are fixed. That is, the user can fix the position between the developing unit 30 and the transfer unit 40 only by closing the cover 20. Accordingly, even when the apparatus main body 10 and the cover 20 are deformed due to external force or environmental change, the developing unit 30 and the transfer unit 40 are not misaligned with each other. A good image can be obtained.

이상, 본 발명은 예시적인 방법으로 설명되었다. 여기서 사용된 용어들은 설명을 위한 것이며 한정의 의미로 이해되어서는 안될 것이다. 상기 내용에 따라 본 발명의 다양한 수정 및 변형이 가능하다. 따라서, 따로 부가 언급하지 않는 한 본 발명은 청구항의 범주 내에서 자유로이 실행될 수 있을 것이다.The present invention has been described above by way of example. The terminology used herein is for the purpose of description and should not be regarded as limiting. Various modifications and variations of the present invention are possible in light of the above teachings. Accordingly, the invention may be freely practiced within the scope of the claims unless otherwise stated.

이상에서 설명한 바와 같은 본 발명에 의하면, 커버를 단지 닫는 조작만으로 현상유닛과 전사유닛 간의 위치고정이 가능함으로써, 양질의 화상을 얻을 수 있다.According to the present invention as described above, the position can be fixed between the developing unit and the transfer unit by only closing the cover, whereby a good image can be obtained.

Claims (4)

장치 본체; Device body; 상기 장치 본체에 회동 개폐가능하게 설치된 커버; A cover installed rotatably in the apparatus body; 상기 장치 본체에 설치된 현상유닛; A developing unit installed in the apparatus main body; 상기 커버에 설치된 전사유닛; 및 A transfer unit installed in the cover; And 상기 커버의 회동 개폐동작에 연동하여 상기 현상유닛과 상기 전사유닛 간의 위치를 고정하는 위치고정유닛;을 포함하고,And a position fixing unit which fixes a position between the developing unit and the transfer unit in association with a rotation opening and closing operation of the cover. 상기 위치고정유닛은,The position fixing unit, 상기 현상유닛에 구비된 고정돌기부; 및A fixing protrusion provided in the developing unit; And 상기 고정돌기부가 삽입되도록 상기 전사유닛에 구비된 고정홈부;를 포함하고,And a fixing groove provided in the transfer unit to insert the fixing protrusion. 상기 고정돌기부는 제 1 요철부가 구비되고, 상기 고정홈부는 제 2 요철부가 구비되며, 상기 제 1 요철부와 상기 제 2 요철부가 서로 교번적으로 맞물려 고정되는 것을 특징으로 하는 화상형성장치.The fixing protrusion is provided with a first uneven portion, the fixing groove portion is provided with a second uneven portion, the first uneven portion and the second uneven portion is an image forming apparatus, characterized in that alternately meshed with each other. 삭제delete 삭제delete 제 1 항에 있어서,The method of claim 1, 상기 제 1 및 제 2 요철부는 요철부위가 라운드진 것을 특징으로 하는 화상형성장치.And the first and second uneven portions are rounded with uneven portions.
KR1020050091853A 2005-09-30 2005-09-30 Image forming apparatus KR101123721B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020063700A (en) * 2001-01-30 2002-08-05 삼성전자 주식회사 Printing apparatus
JP2005107135A (en) * 2003-09-30 2005-04-21 Murata Mach Ltd Image forming apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020063700A (en) * 2001-01-30 2002-08-05 삼성전자 주식회사 Printing apparatus
JP2005107135A (en) * 2003-09-30 2005-04-21 Murata Mach Ltd Image forming apparatus

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