KR100260431B1 - Separate device of development unit for electrophotographic processor - Google Patents

Separate device of development unit for electrophotographic processor Download PDF

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Publication number
KR100260431B1
KR100260431B1 KR1019970075921A KR19970075921A KR100260431B1 KR 100260431 B1 KR100260431 B1 KR 100260431B1 KR 1019970075921 A KR1019970075921 A KR 1019970075921A KR 19970075921 A KR19970075921 A KR 19970075921A KR 100260431 B1 KR100260431 B1 KR 100260431B1
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KR
South Korea
Prior art keywords
stopper
photosensitive drum
toner
lower side
actuator
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KR1019970075921A
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Korean (ko)
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KR19990055945A (en
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임영택
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윤종용
삼성전자주식회사
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Priority to KR1019970075921A priority Critical patent/KR100260431B1/en
Publication of KR19990055945A publication Critical patent/KR19990055945A/en
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    • 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
    • G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
    • G03G15/0813—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by means in the developing zone having an interaction with the image carrying member, e.g. distance holders
    • 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
    • G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
    • G03G15/0812—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer regulating means, e.g. structure of doctor blade

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE: An apparatus for adjusting a developing device for an electronic photographic processor is provided to reduce an unnecessary contact between a photosensitive drum and a supply roller by contacting the supply roller with the photosensitive roller in case that a toner is provided to the photosensitive drum through the supply roller. CONSTITUTION: An adjustment gear(80) forms a fixed protrusion unit(82). A stopper(70) forms a hole in the center in order to combine with the fixed protrusion unit(82) and a mounted groove(73) in the outer circumference. A clutch spring(60) is inserted into the hole of the stopper(70). A cam(50) forms a mounted rod(54) on one side and a combination unit(53) on the other side. A mounted hole is formed in the cam(50). A solenoid(90) is installed in the lower part of the stopper(70). The solenoid(90) is supported by an electromagnet(92) attached on an electromagnet mounted stand(91), an actuator and a spring(93).

Description

전자사진 프로세서의 현상기 조절장치Developer Control of Electrophotographic Processor

본 발명은 전자사진 프로세서에 관한 것으로서, 특히 현상기의 공급롤러와 감광드럼간의 불필요한 접촉을 최소화하기 위한 현상기 조절장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic processor, and more particularly, to a developing device adjusting device for minimizing unnecessary contact between a developing roller and a photosensitive drum.

통상적으로, 전자사진 프로세서는 노광부에 의해 정전잠상이 형성되는 감광드럼을 구비한다. 상기와 같이 정전잠상이 형성된 감광드럼 일측에는 토너를 공급해 주기 위한 공급롤러가 설치되고, 상기 공급롤러는 토너를 적재한 현상기에 설치된다.Typically, an electrophotographic processor has a photosensitive drum in which an electrostatic latent image is formed by the exposure portion. A supply roller for supplying toner is installed on one side of the photosensitive drum having the electrostatic latent image formed as described above, and the supply roller is installed in a developer in which toner is loaded.

도 1은 종래 기술의 실시예에 따른 전자사진 프로세서 내의 감광드럼과 현상기를 나타낸 개략도이다.1 is a schematic diagram illustrating a photosensitive drum and a developer in an electrophotographic processor according to an embodiment of the prior art.

도 1에 도시된 바와 같이 종래의 현상기(10)는 양측면에 가이드폴(14)을 형성하고 상기 가이드폴을 폴 안착홈(30)에 삽입하여 본체에 설치한 토너적재부(11)와, 상기 토너적재부의 하측에 설치된 공급롤러(12)로 이루어지고, 상기 공급롤러와 외주면이 접하는 감광드럼(20)은 드럼축(22)이 축지지홈(32)에 삽입됨으로써 고정된다. 또한, 상기 토너적재부(11)의 후면은 본체 프레임(34)에 지지된 판스프링(40)의 단부가 지지한다.As shown in FIG. 1, the conventional developing device 10 has guide poles 14 formed on both sides, and the toner loading part 11 installed in the main body by inserting the guide poles into the pole seating groove 30, and the Consisting of a supply roller 12 provided below the toner loading portion, the photosensitive drum 20 in contact with the supply roller and the outer circumferential surface thereof is fixed by inserting the drum shaft 22 into the shaft support groove 32. In addition, an end of the leaf spring 40 supported by the main body frame 34 is supported by the rear surface of the toner loading portion 11.

상기 감광드럼(20)에 정전잠상이 형성된 후, 상기 토너적재부(11)에 적재된 토너가 공급롤러(12)의 회전으로 감광드럼에 공급되면 상기 토너는 감광드럼(20)의 정전잠상에 부착되고, 상기 감광드럼과 감광드럼 하측의 전사롤러(도시되지 않음) 사이를 통과하는 용지에 토너의 화상이 전사된다.After the electrostatic latent image is formed on the photosensitive drum 20, when the toner loaded on the toner loading part 11 is supplied to the photosensitive drum by the rotation of the feed roller 12, the toner is applied to the electrostatic latent image of the photosensitive drum 20. The toner image is transferred onto a sheet which is attached and passes between the photosensitive drum and the transfer roller (not shown) below the photosensitive drum.

그러나, 위와 같은 방법을 사용할 때 상기 공급롤러(12)는 감광드럼(20)과 항상 접촉하고 있으므로 일정한 사용시간이 경과하면 상기 감광드럼면이 마찰에 의해 마모되고, 상기 감광드럼과 공급롤러 사이에 압착된 토너는 열과 압력에 의해 스트레스를 받아 성질이 변형되는 문제점이 있었다.However, when using the above method, the supply roller 12 is always in contact with the photosensitive drum 20, so that after a certain time of use, the photosensitive drum surface is worn by friction, and between the photosensitive drum and the supply roller. The compressed toner has a problem in that its properties are deformed under stress due to heat and pressure.

또한, 화상이 형성되지 않는 상태에서도 상기 공급롤러로부터 감광드럼 쪽으로 소량의 토너가 흘러 들어가, 토너의 비산 및 감광드럼 표면을 오염시키게 되는 문제점이 있었다.In addition, there is a problem that a small amount of toner flows from the feed roller toward the photosensitive drum even when no image is formed, thereby contaminating the toner and the surface of the photosensitive drum.

상기와 같은 문제점을 해결하기 위하여 본 발명의 목적은 감광드럼과 공급롤러간에 불필요한 접촉을 최소화하고, 공급롤러를 통해 감광드럼으로 토너가 공급될 때에만 공급롤러와 감광드럼가 접촉하도록 현상기의 각도를 조절할 수 있는 전자사진 프로세서의 현상기 조절장치를 제공하는데 있다.In order to solve the above problems, an object of the present invention is to minimize unnecessary contact between the photosensitive drum and the supply roller, and to adjust the angle of the developer such that the supply roller and the photosensitive drum contact only when the toner is supplied to the photosensitive drum through the supply roller. A developer control device of an electrophotographic processor can be provided.

상기와 같은 목적을 달성하기 위하여 본 발명은 양측면에 가이드폴을 형성하고 상기 가이드폴을 폴 안착홈에 삽입하여 본체에 설치한 토너적재부와, 상기 토너적재부의 하측에 설치된 공급롤러로 이루어진 현상기와, 상기 공급롤러와 외주면이 접하는 감광드럼을 구비한 전자사진 프로세서에 있어서,In order to achieve the above object, the present invention provides a developing device comprising a guide pole formed on both sides of the guide pole and the guide pole inserted into the pole seating groove and installed on the main body, and a supply roller installed on the lower side of the toner loading portion. In the electrophotographic processor having a photosensitive drum in contact with the supply roller and the outer peripheral surface,

상기 토너적재부 하측면에는 경사돌기를 돌출 형성하고, 상기 경사돌기 하측에는, 일면 중앙에 고정돌출부를 형성하고 현상기 측면의 구동기어와 치합된 조절기어와, 상기 고정돌출부에 결합되도록 중앙에 홀을 형성하고 외주에 장착홈을 형성하며 외주 일측에 걸림턱을 형성한 스토퍼와, 상기 스토퍼의 홀에 삽입되는 클러치스프링과, 상기 클러치스프링이 감기도록 일면에 장착로드를 형성하고 타면에는 본체의 회전축과 결합하는 결합부를 형성하며 외주에는 대경부를 돌출 형성하여 상기 경사돌기 하측면과 접한 캠과, 상기 스토퍼 하측에는 전자석장착대 위에 부착된 전자석과, 상기 전자석장착대에 힌지로 결합되고 일단 상측이 돌출하여 상기 스토퍼의 걸림턱에 걸린 액츄에이터와, 상기 액츄에이터의 타단과 전자석장착대 사이에는 스프링으로 지지되며 제어부와 연결된 솔레노이드를 설치하는 것을 특징으로 한다.An inclined protrusion protrudes from the lower side of the toner loading part, and a fixed protrusion is formed at the center of one side of the lower side of the inclined protrusion, and a control gear engaged with the drive gear of the developing side and a hole in the center to be coupled to the fixed protrusion. A stopper having a locking jaw formed at one side of the outer periphery, a clutch spring inserted into the hole of the stopper, and a mounting rod formed at one surface to wind the clutch spring, and the rotating shaft of the main body at the other side thereof. A cam is formed in contact with the lower side of the inclined protrusion to form a coupling portion to the outer periphery, the electromagnet attached to the electromagnet mounting bracket on the lower side of the stopper, the hinge is coupled to the electromagnet mounting bracket and the upper side once protrudes A spring is disposed between the actuator caught on the stopping jaw of the stopper, and the other end of the actuator and the electromagnet mount. The support is characterized by installing a solenoid connected to the controller.

도 1은 종래 기술의 실시예에 따른 전자사진 프로세서 내의 감광드럼과 현상기를 나타낸 개략도,1 is a schematic diagram showing a photosensitive drum and a developer in an electrophotographic processor according to an embodiment of the prior art;

도 2는 본 발명의 바람직한 실시예에 따른 현상기 조절장치를 나타낸 분리 사시도,Figure 2 is an exploded perspective view showing a developing device adjusting apparatus according to a preferred embodiment of the present invention,

도 3은 현상기 조절장치를 구비한 현상기와 감광드럼을 나타낸 개략도,3 is a schematic view showing a developing unit having a developing device and a photosensitive drum,

도 4는 현상기 조절장치에 의해 감광드럼과 분리된 현상기의 모습을 나타낸 개략도.Figure 4 is a schematic diagram showing the state of the developer separated from the photosensitive drum by the developer adjustment device.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10 : 현상기 50 : 캠10: developing unit 50: cam

52 : 대경부 53 : 결합부52: large diameter part 53: coupling part

54 : 장착로드 55 : 장착홀54: mounting rod 55: mounting hole

60 : 클러치스프링 70 : 스토퍼60: clutch spring 70: stopper

80 : 조절기어 90 : 솔레노이드80: adjusting gear 90: solenoid

100 : 경사돌기 200 : 제어부100: inclined protrusion 200: control unit

이하 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다. 본 발명을 설명함에 있어서, 관련된 공지기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

본 발명은 전자사진 프로세서에 관한 것으로서, 특히 현상기의 공급롤러와 감광드럼간의 불필요한 접촉을 최소화하기 위한 현상기 조절장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic processor, and more particularly, to a developing device adjusting device for minimizing unnecessary contact between a developing roller and a photosensitive drum.

도 2는 본 발명의 바람직한 실시예에 따른 현상기 조절장치를 나타낸 분리 사시도이고, 도 3은 현상기 조절장치를 구비한 현상기와 감광드럼을 나타낸 개략도이다.Figure 2 is an exploded perspective view showing a developing device control apparatus according to a preferred embodiment of the present invention, Figure 3 is a schematic view showing a developing unit and a photosensitive drum having a developing device control device.

도 2에 도시된 바와 같이 본 발명의 현상기 조절장치는, 일면 중앙에 고정돌출부(82)를 형성하고 현상기 측면의 구동기어와 치합된 조절기어(80)와, 상기 고정돌출부에 결합되도록 중앙에 홀을 형성하고 외주에 장착홈(73)을 형성하며 외주 일측에 걸림턱(72)을 형성한 스토퍼(70)와, 상기 스토퍼의 홀에 삽입되는 클러치스프링(60)과, 상기 클러치스프링이 감기도록 일면에 장착로드(54)를 형성하고 타면에는 결합부(53)를 형성하며 외주에는 대경부(52)를 돌출 형성한 캠(50)과, 상기 캠에는 장착홀(55)을 형성한다.As shown in FIG. 2, the developing device adjusting device of the present invention includes a control gear 80 formed with a fixed protrusion 82 at the center of one surface thereof and engaged with a drive gear on the side of the developer, and a hole in the center to be coupled to the fixed protrusion. A stopper 70 having a locking groove 72 formed at an outer circumference and a clutch spring 60 inserted into a hole of the stopper, and the clutch spring being wound. A mounting rod 54 is formed on one surface, a coupling portion 53 is formed on the other surface, and a cam 50 protruding from the large diameter portion 52 is formed on the outer circumference thereof, and a mounting hole 55 is formed on the cam.

또한, 상기 스토퍼(70) 하측에는 솔레노이드(90)를 설치한다. 상기 솔레노이드는 전자석장착대(91) 위에 부착된 전자석(92)과, 상기 전자석장착대에 힌지로 결합되고 일단 상측이 돌출한 액츄에이터(94)와, 상기 액츄에이터의 타단과 전자석장착대 사이에는 스프링(93)으로 지지되어 있다. 상기 솔레노이드(90)는 액츄에이터의 돌출한 일단이 상기 스토퍼(70)의 외주면과 접하도록 설치된다.In addition, a solenoid 90 is installed below the stopper 70. The solenoid has an electromagnet 92 attached to the electromagnet mounting stand 91, an actuator 94 hinged to the electromagnet mounting stand and protruded from the upper side once, and a spring (between the other end of the actuator and the electromagnet mounting stand). 93). The solenoid 90 is installed such that one end of the actuator contacts the outer circumferential surface of the stopper 70.

한편, 도 3에 도시된 바와 같이 본 발명의 현상기(10)는, 양측면에 가이드폴(14)을 형성하고 상기 가이드폴을 폴 안착홈(30)에 삽입하여 본체에 설치한 토너적재부(11)와, 상기 토너적재부의 하측에 설치된 공급롤러(12)와, 상기 토너적재부 하측면에 경사돌기(100)를 돌출 형성하고, 상기 공급롤러와 외주면이 접하는 감광드럼(20)은 드럼축(22)이 축지지홈(32)에 삽입됨으로써 고정되며, 상기 토너적재부(11)의 후면은 본체 프레임(34)에 지지된 판스프링(40)의 단부가 지지한다.On the other hand, as shown in Figure 3, the developing device 10 of the present invention, the guide poles 14 are formed on both sides, and the toner loading portion 11 installed in the main body by inserting the guide poles into the pole seating groove 30. ), A feed roller 12 provided below the toner loading portion, and an inclined protrusion 100 protruding from the bottom surface of the toner loading portion, and the photosensitive drum 20 in contact with the supply roller and the outer circumferential surface thereof has a drum shaft ( 22 is fixed by being inserted into the shaft support groove 32, the rear surface of the toner loading portion 11 is supported by the end of the leaf spring 40 supported by the main frame 34.

특히, 상기 경사돌기(100)의 면과 캠(50)의 외주면이 접하도록 상기 현상기 조절장치를 설치한다. 즉, 본 발명의 현상기 조절장치는 현상기 밑면의 경사돌기(100)와 캠(50)의 외주면이 접한 상태에서, 제어부(200)와 연결된 솔레노이드의 액츄에이터(94) 일단이 스토퍼(70)의 걸림턱에 걸리도록 설치하고, 이때 조절기어(80)는 현상기 측면에서 공급롤러를 회전시키는 구동기어(도시되지 않음)와 맞물리도록 하며, 상기 캠(50)의 결합부(53)는 본체 프레임에 형성한 회전축(도시되지 않음)에 삽입한다.In particular, the developing device adjusting device is installed so that the surface of the inclined protrusion 100 and the outer circumferential surface of the cam 50 contact each other. That is, in the developing device adjusting device of the present invention, one end of the actuator 94 of the solenoid connected to the control unit 200 is caught by the stopper 70 in a state in which the inclined protrusion 100 and the outer circumferential surface of the cam 50 are in contact with each other. In this case, the adjustment gear 80 is engaged with a drive gear (not shown) for rotating the feed roller at the developer side, and the engaging portion 53 of the cam 50 is formed on the main frame. Insert into a rotating shaft (not shown).

용지에 화상을 형성할 때에는 상술한 바와 같이 제어부(200)와 연결된 솔레노이드의 액츄에이터(94) 일단이 스토퍼(70)의 걸림턱에 걸려 있으므로, 상기 스토퍼가 회전하지 않는다. 따라서, 상기 클러치스프링(60)도 캠의 장착로드를 감지 않아 캠(50)이 회전하지 않으므로, 상기 현상기의 공급롤러(12)는 감광드럼(20)과 접한 상태에서 감광드럼으로 토너적재부의 토너를 이송한다.As described above, when the image is formed on the sheet, one end of the actuator 94 of the solenoid connected to the control unit 200 is caught by the stopper of the stopper 70, so that the stopper does not rotate. Therefore, since the cam 50 does not rotate because the clutch spring 60 does not sense the mounting rod of the cam, the supply roller 12 of the developer is exposed to the toner loading portion of the toner loading portion by the photosensitive drum in contact with the photosensitive drum 20. Transfer it.

도 4는 현상기 조절장치에 의해 감광드럼과 분리된 현상기의 모습을 나타낸 개략도이다.Figure 4 is a schematic diagram showing the state of the developer separated from the photosensitive drum by the developer adjustment device.

도 4에 도시된 바와 같이 용지에 화상을 형성할 필요가 없을 때에는 제어부(200)에 의해 인가된 신호가 솔레노이드(90)에 보내지면, 상기 솔레노이드의 전자석(92)에 전자력이 발생하고, 상기 전자석은 액츄에이터(94)의 일단을 밑으로 끌어당긴다. 이때, 상기 스토퍼(70)의 걸림턱이 액츄에이터의 일단으로부터 해제되면서 구동기어와 연결된 조절기어(80)의 회전으로 클러치스프링(60)이 회전하고, 상기 클러치스프링이 캠의 장착로드 외주면을 감싸면서 조절기어(80)의 회전력이 캠에 전달되어 캠(50)이 회전한다.When there is no need to form an image on the paper as shown in FIG. 4, when a signal applied by the control unit 200 is sent to the solenoid 90, an electromagnetic force is generated in the electromagnet 92 of the solenoid, and the electromagnet Pulls one end of the actuator 94 downward. At this time, as the locking jaw of the stopper 70 is released from one end of the actuator, the clutch spring 60 rotates by the rotation of the adjusting gear 80 connected to the drive gear, and the clutch spring wraps around the outer rod surface of the cam. The rotational force of the adjusting gear 80 is transmitted to the cam to rotate the cam 50.

이어, 상기 캠이 회전하면서 캠의 대경부(52)가 현상기 밑면의 경사돌기(100)를 상부로 밀어올리게 되고, 이때 상기 현상기의 공급롤러(12)도 상부로 밀어올려져 감광드럼(20)과 분리된다. 따라서, 상기 현상기의 공급롤러(12)와 감광드럼(20)간의 상호압력이 해제됨으로써 공급롤러로부터 감광드럼으로는 더 이상 토너가 공급되지 않게 된다.Subsequently, as the cam rotates, the large diameter portion 52 of the cam pushes up the inclined protrusion 100 at the bottom of the developer, and at this time, the feed roller 12 of the developer is also pushed upwards to expose the photosensitive drum 20. Is separated from. Therefore, the mutual pressure between the supply roller 12 and the photosensitive drum 20 of the developing device is released, so that toner is no longer supplied from the supply roller to the photosensitive drum.

상술한 바와 같이 본 발명의 실시예에 따른 전자사진 프로세서의 현상기 조절장치는 화상이 형성되지 않을 때 감광드럼과 공급롤러를 분리함으로써, 마찰에 의한 감광드럼의 마모를 방지하고 감광드럼과 공급롤러의 압착에 의한 토너의 변형을 방지하는 효과가 있다.As described above, the developing device controller of the electrophotographic processor according to the embodiment of the present invention separates the photosensitive drum and the supply roller when an image is not formed, thereby preventing wear of the photosensitive drum due to friction and preventing the wear of the photosensitive drum and the supply roller. There is an effect of preventing deformation of the toner by compression.

또한, 화상이 형성되지 않을 때는 공급롤러로부터 감광드럼으로 토너가 흘러가지 않으므로, 토너의 비산 및 감광드럼 표면의 오염을 막을 수 있는 효과가 있다.In addition, when no image is formed, the toner does not flow from the supply roller to the photosensitive drum, thereby preventing the toner from scattering and contaminating the photosensitive drum surface.

Claims (1)

양측면에 가이드폴을 형성하고 상기 가이드폴을 폴 안착홈에 삽입하여 본체에 설치한 토너적재부와, 상기 토너적재부의 하측에 설치된 공급롤러로 이루어진 현상기와, 상기 공급롤러와 외주면이 접하는 감광드럼을 구비한 전자사진 프로세서에 있어서,Guide poles are formed on both sides, and the guide pole is inserted into the pawl seating groove, and a toner loading part installed in the main body, a developing roller provided on the lower side of the toner loading part, and a photosensitive drum in contact with the supply roller and the outer circumferential surface thereof. An electrophotographic processor provided, 상기 토너적재부 하측면에는 경사돌기를 돌출 형성하고,An inclined protrusion protrudes from a lower side of the toner-loading portion, 상기 경사돌기 하측에는, 일면 중앙에 고정돌출부를 형성하고 현상기 측면의 구동기어와 치합된 조절기어와, 상기 고정돌출부에 결합되도록 중앙에 홀을 형성하고 외주에 장착홈을 형성하며 외주 일측에 걸림턱을 형성한 스토퍼와, 상기 스토퍼의 홀에 삽입되는 클러치스프링과, 상기 클러치스프링이 감기도록 일면에 장착로드를 형성하고 타면에는 본체의 회전축과 결합하는 결합부를 형성하며 외주에는 대경부를 돌출 형성하여 상기 경사돌기 하측면과 접한 캠과,On the lower side of the inclined protrusion, a fixed protrusion is formed at the center of one surface and a control gear meshed with the driving gear of the developing side, and a hole is formed at the center to be coupled to the fixed protrusion, and a mounting groove is formed at the outer circumference and the locking jaw at one side of the outer circumference. A stopper having a recess formed therein, a clutch spring inserted into the hole of the stopper, and a mounting rod formed on one surface to wind the clutch spring, and a coupling part coupled to the rotating shaft of the main body on the other surface thereof to protrude a large diameter portion on the outer circumference thereof. A cam in contact with the lower side of the inclined protrusion, 상기 스토퍼 하측에는 전자석장착대 위에 부착된 전자석과, 상기 전자석장착대에 힌지로 결합되고 일단 상측이 돌출하여 상기 스토퍼의 걸림턱에 걸린 액츄에이터와, 상기 액츄에이터의 타단과 전자석장착대 사이에는 스프링으로 지지되며 제어부와 연결된 솔레노이드를 설치하는 것을 특징으로 하는 전자사진 프로세서의 현상기 조절장치.The stopper is attached to the electromagnet mounted on the lower side of the stopper, the actuator is coupled to the electromagnet mount by a hinge, and once the upper side of the actuator is caught by the stopper of the stopper, and supported by a spring between the other end of the actuator and the electromagnet mount And a solenoid connected to the control unit.
KR1019970075921A 1997-12-29 1997-12-29 Separate device of development unit for electrophotographic processor KR100260431B1 (en)

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KR100260431B1 true KR100260431B1 (en) 2000-07-01

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