KR940002128B1 - Doping device of one-component non-magnetic toner in a developing apparatus - Google Patents
Doping device of one-component non-magnetic toner in a developing apparatus Download PDFInfo
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- KR940002128B1 KR940002128B1 KR1019910008610A KR910008610A KR940002128B1 KR 940002128 B1 KR940002128 B1 KR 940002128B1 KR 1019910008610 A KR1019910008610 A KR 1019910008610A KR 910008610 A KR910008610 A KR 910008610A KR 940002128 B1 KR940002128 B1 KR 940002128B1
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- toner
- developing
- photosensitive drum
- hopper
- developing roller
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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
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- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
Description
제1도는 종래의 전자사진 프로세서의 현상장치.1 is a developing apparatus of a conventional electrophotographic processor.
제2도는 본 발명의 전자사진 프로세서의 현상장치.2 is a developing apparatus of an electrophotographic processor of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 현상기 2 : 현상롤러1 developing machine 2 developing roller
3 : 도전성망 4 : 호퍼3: conductive network 4: hopper
5 : 감광드럼5: photosensitive drum
본 발명은 레이저 프린터, 복사기 등과 같은 전자사진 프로세서의 현상장치에 관한 것으로써 특히 일성분 비자성 현상법을 사용하는 현상기에서 스폰지 롤러를 사용하지 않고 도전성 망을 사용하므로써 현상기 면적을 줄여 현상기 설치공간을 최소화하고 원가상승을 방지하기 위해 개량된 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a developing apparatus for an electrophotographic processor such as a laser printer, a copying machine, and the like, in particular, in a developer using a one-component nonmagnetic developing method, by using a conductive net instead of a sponge roller, the developer area is reduced by reducing the developer area. Improvements have been made to minimize and prevent cost increases.
종래에는 제1도에 도시한 바와 같이 대전기(6)의 코로나 방전에 의해 감광드럼(5)의 표면을 골고루 대전하고 감광드럼(5)의 시계방향으로 회전에 의해 대전된 부분은 노광장치(7)의 광원에 의해 원고의 화상과 같은 정전 잠상이 감광드럼(5)위에 생성되며 이대 현상기(1)에 설치된 호퍼(4)에 의해 일성분 토너가 스폰지 롤러(10)로 이송되어스폰지 롤러(10)가 반시계방향으로 회전에 의해 토너가 스폰지 롤러와 접촉하면서 마찰력에 따라 정전기력이 작용하여 현상롤러(2) 표면에 부착되며 감광드럼(5) 표면에 생성된 정전 잠상이 현상기(1)를 지나는 동안 현상롤러(2)에 부착된 토너로 형상하여 가시상으로 변하게 되고 이어서 급지된 복사 용지위에 형성된 상은 전사기(8)의 코로나와이어에 고전압을 인가했을 때 급지되는 용지위로 감광드럼(5)상의 가시상을 복사용지로 전사되고 분리기에 의해 용지가 감광드럼(5)에서 분리되어 정착기를 거쳐 배지트레이 측으로 이송시켜 복사용지면에 원고의 상이 정착되어 원하는 인쇄가 이루어진다.Conventionally, as shown in FIG. 1, the surface of the photosensitive drum 5 is uniformly charged by the corona discharge of the charger 6, and the portion charged by the clockwise rotation of the photosensitive drum 5 is exposed to the exposure apparatus ( A latent electrostatic image, such as an image of an original, is generated on the photosensitive drum 5 by the light source of 7), and the one-component toner is transferred to the sponge roller 10 by the hopper 4 installed in the developing developer 1, and the sponge roller ( As the toner comes into contact with the sponge roller by rotating in a counterclockwise direction, the electrostatic force acts according to the frictional force so as to adhere to the surface of the developing roller 2, and the latent electrostatic image generated on the surface of the photosensitive drum 5 While passing, the image formed on the toner attached to the developing roller 2 turns into a visible image, and then the image formed on the fed copy paper is exposed to a photosensitive drum 5 on the sheet fed when high voltage is applied to the corona wire of the transfer machine 8. Image of the top Is transferred to the paper is different from the fixing of the original on the copy yongjimyeon was transported toward the paper discharge tray is separated from the photosensitive drum 5 through the fixing unit by a separator made of a desired print.
한편 전사기(8)를 지난 감광드럼(5)상에 잔여분의 토너와 잠상이 존재하게 되는데 토너는 청소장치(9)의 블레이드에 의해 제거되며, 잠상은 잠상제거 램프(20)에 의해 제거되도록 되어 있다.Meanwhile, residual toner and latent image are present on the photosensitive drum 5 passing through the transfer machine 8, and the toner is removed by the blade of the cleaning device 9, and the latent image is removed by the latent image removal lamp 20. It is.
이러한 종래의 전자사진 프로세서의 현상장치는 토너를 현상롤러로 공급하기 위하여 호퍼와 스폰지 롤러를 설치하여 사용함으로서 현상롤러와 스폰지 롤러가 서로 같은 방향으로 회전하다 보니 토크가 커지고 스폰지 롤러 때문에 구조가 복잡해지고 현상기 자체가 커지게 되므로 기기를 소형경량화 하는데 문제점이 있다.The developing apparatus of the conventional electrophotographic processor uses a hopper and a sponge roller to supply toner to the developing roller, and thus the developing roller and the sponge roller rotate in the same direction. Therefore, the torque increases and the structure becomes complicated due to the sponge roller. Since the developing device itself becomes large, there is a problem in miniaturization and weight of the device.
본 발명은 상기와 같은 문제점을 해소하기 위하여 인출된 것으로서 일성분 비자성 현상법을 사용하는 현상기에 스폰지 롤러를 사용하지 않고 도전성 망을 설치하여 현상기 구조를 간단히 하므로 현상기의 부피를 줄이고 현상기 설치공간을 최소화하여 기기를 소형화 하는데 본 발명의 목적이 있다.The present invention has been drawn to solve the above problems, it is possible to reduce the volume of the developer and the developer installation space by simplifying the developer structure by installing a conductive net without using a sponge roller in the developer using the one-component nonmagnetic developing method. It is an object of the present invention to miniaturize a device by minimizing it.
상기와 같은 목적을 달성하기 위한 실시예를 첨부된 도면에 의거 상세히 설명하면 다음과 같다.An embodiment for achieving the above object will be described in detail with reference to the accompanying drawings.
제2도를 참조하면 본 발명의 구성을 설명하면, 감광드럼(5)상에 현상기(1)내의 토너로 현상하기 위하여 현상기(1)내에 설치된 현상롤러(2)와 호퍼(4)가 설치된 공간 사이에 전원을 인가시킨 도전성망(3)을 설치하여 상기 호퍼(4)에 의해 교반된 토너가 도전성망(3)에 부착되어 현상롤러(2)에 토너가 도포되게 설치된 것이다.Referring to FIG. 2, a configuration of the present invention will be described. A space provided with a developing roller 2 and a hopper 4 provided in the developing device 1 for developing with the toner in the developing device 1 on the photosensitive drum 5 is described. The toner stirred by the hopper 4 is attached to the conductive net 3 by providing the conductive net 3 to which power is applied between the conductive net 3 and the toner is applied to the developing roller 2.
도면중 미설명 부호는 종래의 설명부호와 같다.Unexplained reference numerals in the drawings are the same as the conventional description.
이와 같이 구성된 본 발명의 작용효과는 다음과 같다. 대전기(6)의 코로나 방전에 의해 감광드럼(5)의 표면을 골고루 대전하고 감광드럼(5)이 회전에 의해 대전된 부분은 노광장치(6)의 광원에 의해 원고의 화상과 같은 정전잠상이 감광드럼(5)위에 생성되며 이때 현상기(1)에 설치된 호퍼(4)에 회전에 의해 일성분 토너가 교반되며 현상롤러(2)측으로 이송되는 통로에 전원이 인가된 도전성망(3)을 통과함에 따라 토너는 -극성을 갖게 된다. 이후 현상롤러(2)에 토너가 도포되어 감광드럼(5) 표면에 생성된 정전잠상이 현상기(1)를 지나는 동안 현상롤러(2)에 도포된 토너가 감광드럼의 잠상이 갖는 대전기력에 의해 감광드럼(5)측으로 옮겨져 가시상으로 변하게 되고 이어서 급지된 인쇄용지 위에 현상된 상은 전사기의 코로나 와이어에 고전압을 인가했을 때 급지되는 용지위로 감광드럼(5)상의 가시상을 인쇄용지로 전사되고 분리기에 의해 용지가 감광드럼에서 분리되어 정착기를 거쳐 배지트레이측으로 이송시켜 원하는 인쇄가 이루어진다.Effects of the present invention configured as described above are as follows. The portion where the surface of the photosensitive drum 5 is uniformly charged by the corona discharge of the charger 6 and the photosensitive drum 5 is charged by rotation is electrostatic latent image such as an image of the original by the light source of the exposure apparatus 6. The conductive net 3 is generated on the photosensitive drum 5, and at this time, the one-component toner is agitated by the rotation of the hopper 4 installed in the developing device 1, and a power is applied to the passage conveyed to the developing roller 2 side. As it passes, the toner becomes polar. Then, while the toner is applied to the developing roller 2 and the electrostatic latent image generated on the surface of the photosensitive drum 5 passes through the developing device 1, the toner applied to the developing roller 2 is charged by the electrostatic force of the latent image of the photosensitive drum. After moving to the photosensitive drum 5 to become a visible image, the image developed on the fed paper is transferred to the printing paper with the visible image on the photosensitive drum 5 onto the paper fed when a high voltage is applied to the corona wire of the transfer machine. The paper is separated from the photosensitive drum by a separator and conveyed to the discharge tray side through the fixing unit to achieve desired printing.
한편 전사기(8)는 지난 감광드럼(5)상에 잔여분의 토너와 잠상이 존재하게 되는데 토너는 청소장치(9)의 블레이드에 의해 제거되며 잠상은 잠상제거 램프(20)에 의해 제거되는 것이다.On the other hand, the transfer machine 8 has a residual toner and a latent image on the last photosensitive drum 5. The toner is removed by the blade of the cleaning device 9 and the latent image is removed by the latent image removal lamp 20. .
상기와 같이 본 발명에 의하면 전자사진 프로세서의 일성분 비자성 현상법을 사용하는 현상기에 스폰지 롤러를 사용하지 않고 도전성 망을 설치하여 전원을 인가하여 토너가 극성을 띄게 하므로서 현상기 구조를 간단히 하므로 양산성이 우수하며 성능의 안정화를 꾀할 수 있고 현상기 면적을 줄이고 현상기 설치공간을 최소화하여 기기를 소형경량화시킬 수 있는 잇점이 있다.As described above, according to the present invention, since the toner is polarized by applying electric power by installing a conductive net without using a sponge roller in the developing device using the one-component nonmagnetic developing method of the electrophotographic processor, the developer structure is simplified and thus, This has the advantage of being capable of stabilizing performance and miniaturizing the device by reducing the developer area and minimizing the developer installation space.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1019910008610A KR940002128B1 (en) | 1991-05-27 | 1991-05-27 | Doping device of one-component non-magnetic toner in a developing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1019910008610A KR940002128B1 (en) | 1991-05-27 | 1991-05-27 | Doping device of one-component non-magnetic toner in a developing apparatus |
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KR920022056A KR920022056A (en) | 1992-12-19 |
KR940002128B1 true KR940002128B1 (en) | 1994-03-17 |
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KR1019910008610A KR940002128B1 (en) | 1991-05-27 | 1991-05-27 | Doping device of one-component non-magnetic toner in a developing apparatus |
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1991
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