KR970049142A

KR970049142A - Transfer roller cleaning devices for electrophotographic processors

Info

Publication number: KR970049142A
Application number: KR1019950055768A
Authority: KR
Inventors: 하용웅
Original assignee: 김광호; 삼성전자 주식회사
Priority date: 1995-12-23
Filing date: 1995-12-23
Publication date: 1997-07-29

Abstract

1.청구범위에 기재된 발명이 속한 기술분야1. Technical field to which the invention described in the claims belongs

본 발명은 전자사진 프로세서 과정중에 발생되는 비산 토너, 지분, 이물질로 오염된 전사롤러를 깨끗히 청소하므로서 고해상도의 화상을 형성할 수 있는 전자사진 프로세서의 전사롤러 청소(cleaning)장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer roller cleaning apparatus of an electrophotographic processor capable of forming a high resolution image by cleanly cleaning a transfer roller contaminated with scattering toner, stakes and foreign substances generated during an electrophotographic processor.

2.발명이 해결하려고 하는 기술적 과제2. Technical problem that the invention tries to solve

본 발명은 전사롤러에 부착되어 있는 미세한 지분 및 전류 토너와 이물질등을 제거할 수 있는 전자사진 프로세서의 전사롤러 청소(cleaning)장치를 제공하는데 있다.The present invention provides a transfer roller cleaning apparatus for an electrophotographic processor that can remove minute stakes and current toners and foreign matters attached to a transfer roller.

3.발명이 해결방법의 요지3. Summary of Solution

본 발명은 일정한 주속으로 시계 방향으로 회전하는 감광드럼과, 상기 감광드럼 표면에 전기적으로 전하층을 균일하게 대전시키기는 대전롤러와, 전기적으로 대전된 감광드럼 표면에 정전잠상을 형성시키기는 노광부와, 상기 감광드럼 표면에 형성된 정전잠상에 토너를 현상시키는 현상롤러와, 상기 감광드럼 표면의 토너 화상을 기록용지상에 전사시키는 전사롤러와, 상기 전사롤러의 하단부에는 전사롤러 표면에 부착되어 있는 지분, 이물질, 비산된 토너를 제거하기 위한 청소롤러가 설치된 것이다.The present invention provides a photosensitive drum which rotates in a clockwise direction at a constant circumferential speed, a charging roller for uniformly charging the electric charge layer on the surface of the photosensitive drum, and an exposure unit for forming an electrostatic latent image on the surface of the electrically charged photosensitive drum. And a developing roller for developing the toner on the electrostatic latent image formed on the surface of the photosensitive drum, a transfer roller for transferring the toner image on the photosensitive drum surface onto a recording paper, and a lower end of the transfer roller attached to the surface of the transfer roller. It is equipped with a cleaning roller to remove stakes, foreign substances and scattered toner.

4.발명의 중요한 용도4. Important uses of the invention

본 발명은 전사롤러 하단부에 청소롤러를 설치하여 상기 전사롤러에 부착되어 있는 미세한 지분 및 잔류토너와 이물질등을 전위치에 의해 제거할 수 있기 때문에 상기 미세한 지분, 이물질, 비산된 토너가 감광드럼측으로 이송되는 것을방지할 수 있으며, 이로인해 고해상도의 화상을 형성할 수 있으며, 또한 대전롤러와 현상롤러와 감광드럼 표면에 이물질이 쌓이지 않기 때문에 제품의 수명을 연장시킬 수 있으며, 이로인해 사용자로 하여금 제품의 신뢰성을 향상시킬 수 있는 효과가 있다.According to the present invention, since the cleaning roller is installed at the lower end of the transfer roller, the fine stake, the remaining toner and the foreign matter, etc. attached to the transfer roller can be removed by all positions. It can prevent the transfer, and it can form a high resolution image, and also can extend the life of the product because foreign matter does not accumulate on the surface of the charging roller, the developing roller and the photosensitive drum, thereby allowing the user to There is an effect that can improve the reliability of.

Description

Transfer roller cleaning device for electrophotographic processor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 따른 전자사진 프로세서의 화상 형성 장치의 구성을 나타낸 개략도.2 is a schematic diagram showing a configuration of an image forming apparatus of an electrophotographic processor according to the present invention.

Claims

A photosensitive drum 10 rotating clockwise at a constant circumferential speed, a charging roller 12 for uniformly charging the electric charge layer on the surface of the photosensitive drum 10, and a surface of the electrically charged photosensitive drum 10 An exposure portion 14 for forming an electrostatic latent image on the surface, a developing roller 18 for developing the toner 22 on the electrostatic latent image formed on the surface of the photosensitive drum 10, and a toner image on the surface of the photosensitive drum 10 In the image forming apparatus of the electrophotographic processor comprised of the transfer roller 24 which transfers the film onto the recording paper 30, the lower end part of the said transfer roller 24 has the equity and the foreign matter attached to the surface of the transfer roller 24. And a cleaning roller 26 for removing the scattered toner 22, wherein the transfer roller cleaning apparatus of the electrophotographic processor is installed.

The cleaning roller cleaning apparatus of claim 1, wherein the cleaning roller is installed to be in contact with the transfer roller.

The transfer roller of the electrophotographic processor according to claim 1, wherein the stake, foreign matter and scattered toner 22 attached to the surface of the transfer roller 24 are removed by a potential difference with the cleaning roller 26. Cleaning device.

4. The apparatus of claim 3, wherein the voltage polarity of the cleaning roller (26) is opposite to the voltage polarity of the transfer roller (24).

The transfer roller of the electrophotographic processor according to claim 3, wherein when the voltage of 0.9KV to 1.3KV is applied to the transfer roller 24, the cleaning roller 26 is applied with a voltage of -2KV. Cleaning device.

※ Note: The disclosure is based on the original application.