KR0138619Y1 - Paper feeder of image forming machine - Google Patents

Paper feeder of image forming machine Download PDF

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Publication number
KR0138619Y1
KR0138619Y1 KR2019930029005U KR930029005U KR0138619Y1 KR 0138619 Y1 KR0138619 Y1 KR 0138619Y1 KR 2019930029005 U KR2019930029005 U KR 2019930029005U KR 930029005 U KR930029005 U KR 930029005U KR 0138619 Y1 KR0138619 Y1 KR 0138619Y1
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KR
South Korea
Prior art keywords
paper
recording paper
transfer
image forming
brush
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KR2019930029005U
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Korean (ko)
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KR950020504U (en
Inventor
이범로
Original Assignee
김광호
삼성전자주식회사
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Priority to KR2019930029005U priority Critical patent/KR0138619Y1/en
Publication of KR950020504U publication Critical patent/KR950020504U/en
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Publication of KR0138619Y1 publication Critical patent/KR0138619Y1/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
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6502—Supplying of sheet copy material; Cassettes therefor
    • 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
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus
    • G03G15/0216—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers
    • 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
    • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
    • G03G15/1605—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using at least one intermediate support
    • G03G15/161—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using at least one intermediate support with means for handling the intermediate support, e.g. heating, cleaning, coating with a transfer agent

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Abstract

본 고안은 소비전력이 절약되도록 그 구조를 개선한 화상형성기의 급지장치에 대해 개시한다. 이를위한 본 고안의 급지장치는 전사드럼(20)의 전사필름을 대전시키는 제1브러쉬(23)와 기록지(30)를 대전시키는 제2브러쉬(24)를 전사드럼에 접촉설치한 구조를 가진다.The present invention discloses a paper feeder of an image forming apparatus whose structure is improved to save power consumption. The paper feeding apparatus of the present invention has a structure in which a first brush 23 for charging the transfer film of the transfer drum 20 and a second brush 24 for charging the recording paper 30 are installed in contact with the transfer drum.

Description

화상형성기의 급지장치Paper feeder of image forming machine

제1도는 종래 급지장치를 나타낸 개략도.1 is a schematic view showing a conventional paper feeder.

제2도는 본 고안에 따른 급지장치를 나타낸 개략도이다.2 is a schematic view showing a paper feeding apparatus according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 감광드럼 20 : 전사드럼10: photosensitive drum 20: transcription drum

22 : 전사필름 23, 24 : 브러쉬22: transfer film 23, 24: brush

30 : 기록지30: recording paper

본 고안은 복사기, 프린터와 같은 화상형성기의 급지장치에 관한 것으로서, 특히 전사드럼과 기록지를 각각 브러쉬 대전으로 반대극성으로 대전시켜 기록지를 흡착하여 급지시키는 화상형성기의 급지장치에 관한 것이다.The present invention relates to a paper feeder of an image forming machine such as a copying machine and a printer, and more particularly, to a paper feeder of an image forming machine that charges and transfers recording paper by charging the transfer drum and the recording paper in a reverse polarity with brush charging, respectively.

일반적으로 복사기에는 기록지를 카세트에 수납하여서 그 카세트로부터 기록지를 장치내부로 급지시키는 급지장치가 채용되어 있다. 제1도를 참조하면, 이는 토너를 사용하는 복사기의 요부를 개략적으로 나타낸 것으로서 원고의 정전잠상이 형성되는 감광드럼(1)과, 내부에 고전압이 인가되는 전사기(2)와 대전기(3)를 가지는 전사드럼(5)을 나타낸다. 이 전사드럼(5)에는 기록지(8)가 부착되어 이송되고, 그 기록지(8)는 감광드럼(1)과 접촉되면서 정전잠상에 부착된 토너가 전사되어 화상이 기록된다. 상기 전사드럼(5)은 얇은 전사필름(7)으로 감싸지며 상기 대전기(3)에 의해서 포지티브전위로 대전된다. 그리고 전사드럼(5)의 외측에는 기록지(8)를 네가티브전위로 대전시키는 대전기(4)가 마련되어 있다. 상기 각 대전기(3)(4)에는 전압이 인가되는 와이어가채용된다.In general, a copying machine employs a paper feeder that stores recording paper in a cassette and feeds the recording paper into the apparatus from the cassette. Referring to FIG. 1, this schematically shows the main part of a copier using a toner, which includes a photosensitive drum 1 in which an electrostatic latent image of an original is formed, a transfer machine 2 and a charger 3 to which a high voltage is applied. The transfer drum 5 which has () is shown. A recording sheet 8 is attached to the transfer drum 5 and transported, and the recording sheet 8 contacts the photosensitive drum 1 while transferring the toner attached to the electrostatic latent image to record an image. The transfer drum 5 is wrapped with a thin transfer film 7 and charged to a positive potential by the charger 3. On the outside of the transfer drum 5, a charger 4 for charging the recording paper 8 at negative potential is provided. Each of the chargers 3 and 4 employs a wire to which a voltage is applied.

이와 같은 급지장치는 급지 카세트(미도시)로부터 급지롤러(6)에 의해 이송되는 기록지(8)에 네가티브전위를 인가하는 대전기(4)와, 전사필름(7)에 포지티브전위를 인가하는 대전기(3)를 구비하여서 기록지(8)를 정전흡착으로 전사필름(7)에 부착하여 급지시키는 것이다. 그런데 이러한 급지장치는 비접촉 대전방식으로서 전사필름(7)과 기록지(8)에 충분한 전하를 대전시키기 위해서는 각 대전기(3)(4)에 높은 전압이 필요하고, 기록지(8)선단에 충분한 전압이 유기되기 힘들어 전사필름(7)에 흡착이 잘 안되는 문제점이 있다. 또한 와이어 대전기(3)(4)에 전압이 인가될시 오존등 환경오염물질이 발생하는 문제점이 있다.Such a paper feeder includes a charger 4 for applying a negative potential to a recording paper 8 conveyed by a paper feed roller 6 from a paper cassette (not shown), and a positive potential to the transfer film 7. With the electricity 3, the recording paper 8 is attached to the transfer film 7 by electrostatic adsorption and fed. However, this paper feeding device is a non-contact charging method, and a high voltage is required on each of the chargers 3 and 4 in order to charge sufficient charge to the transfer film 7 and the recording paper 8, and sufficient voltage at the tip of the recording paper 8. There is a problem that the adsorption on the transfer film 7 is difficult to be organic. In addition, there is a problem that environmental pollutants such as ozone occurs when a voltage is applied to the wire charger (3) (4).

본 고안은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 낮은 전압으로도 기록지를 전사드럼에 정전흡착으로 급지시킬 수 있고 기록지의 선단을 전사드럼에 안정적으로 흡착시킬 수 있으며, 또한 오존등 환경오염물질이 발생되지 않는 화상형성기의 급지장치를 제공하는데 그 목적이 있는 것이다.The present invention was devised to solve the above problems, and it is possible to feed recording paper to the transfer drum by electrostatic adsorption even at low voltage, and to stably adsorb the tip of the recording paper onto the transfer drum, and also to environmental pollution such as ozone. It is an object of the present invention to provide a paper feeder of an image forming machine in which no substance is generated.

상기 목적을 달성하는 본 고안은 기록지를 전사드럼에 부착시켜서 급지시키는 화상형성기의 급지장치의 급지장치에 있어서,The present invention to achieve the above object in the paper feeder of the image forming apparatus for feeding the recording paper attached to the transfer drum,

상기 전사드럼의 전사필름을 대전시키는 제1브러쉬와 기록지를 대전시키는 제2브러쉬를 상기 전사드럼에 접촉설치하여서 구성한 것을 특징으로 한다.And a first brush for charging the transfer film of the transfer drum and a second brush for charging the recording paper in contact with the transfer drum.

이하 첨부된 도면을 참조하면서 본 고안에 따른 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

제2도는 본 고안에 따른 급지장치를 개략적으로 나타낸다. 원고의 정전잠상이 형성되는 감광드럼(10)의 하부에는 기록지(30)를 부착하여 이송시키는 전사드럼(20)이 마련되어 있다. 전사드럼(20)은 전사필름(22)으로 감싸진 구조를 가지며 내부에는 감광드럼(10)에 형성된 토너상을 기록지(30)에 전사시키도록 고전압이 인가되는 전사기(21)가 설치되어 있다. 상기 전사드럼(20)의 전사필름(22)에는 소정간격 이격하여 2개의 브러쉬(23)(24)가 접촉설치되어 있고, 그중 하나의 브러쉬(23)에는 포지티브 전위가 인가되어 전사필름(22)을 대전시키고 다른 브러쉬(24)에는 네가티브 전위를 인가하여 기록지(30)를 대전시킨다. 여기서 상기 브러쉬(23)(24)들은 회전되는 롤러의 주변에 형성될 수 있다.2 schematically shows a paper feeding apparatus according to the present invention. In the lower part of the photosensitive drum 10 on which the electrostatic latent image of the document is formed, a transfer drum 20 for attaching and transferring the recording paper 30 is provided. The transfer drum 20 has a structure wrapped with the transfer film 22 and is provided with a transfer machine 21 to which a high voltage is applied to transfer the toner image formed on the photosensitive drum 10 to the recording paper 30. . The transfer film 22 of the transfer drum 20 is provided with two brushes 23 and 24 in contact with each other at a predetermined interval, and a positive potential is applied to one of the brushes 23 to transfer the film 22. The recording paper 30 is charged by applying a negative potential to the other brush 24. The brushes 23 and 24 may be formed around the roller being rotated.

이와 같은 구성의 본 고안에 따른 급지장치는 다음과 같은 작용효과를 가진다. 먼저 전사필름(22)은 브러쉬(23)에 의해서 포지티브전위로 대전되고, 급지 카세트(미도시)로부터 급지롤러(40)를 통해 전사드럼(20)측으로 기록지(30)가 이송되면 브러쉬(24)는 기록지(30)를 네가티브 전위로 대전시키다. 따라서 기록지(30)는 정전흡착으로 전사필름(22)에 부착되어 이송되게 된다. 이때 기록지(30)의 선단은 브러쉬(24)에 의해서 대전됨과 동시에 그 브러쉬(24)와 전사필름(22)사이에 밀착됨으로써, 기록지(30)선단에 충분한 전위가 유기되지 않아도 기록지(30)는 안정하게 전사필름(22)에 밀착되어 이송되어서 감광드럼(10)상에 맺힌 토너상이 전사기(21)에 의해서 기록지(30)로 전사되어 화상이 기록된다.The paper feeding device according to the present invention of such a configuration has the following effects. First, the transfer film 22 is charged to the positive potential by the brush 23, and when the recording paper 30 is transferred from the paper cassette (not shown) to the transfer drum 20 through the paper roller 40, the brush 24 is transferred. Charges the recording sheet 30 to negative potential. Therefore, the recording paper 30 is attached to the transfer film 22 by electrostatic adsorption and transported. At this time, the front end of the recording paper 30 is charged by the brush 24 and closely adhered between the brush 24 and the transfer film 22, so that the recording paper 30 is discharged even if sufficient potential is not induced at the front end of the recording paper 30. The toner image that is stably adhered to the transfer film 22 and formed on the photosensitive drum 10 is transferred to the recording paper 30 by the transfer machine 21 to record an image.

상술한 바와 같이 본 고안에 따른 화상형성기의 급지장치는 전사필름(22)과 기록지(30)를 브러쉬(23)(24)를 설치하여서 접촉식으로 대전시킴으로써 낮은 전압으로도 정전흡착이 용이하므로 소비전력을 절약할 수 있는 이점이 있고, 또한 종래 와이어 대전방식에 있어서 발생되는 오존등 환경오염물질이 발생되지 않는 이점이 있다.As described above, the paper feeder of the image forming apparatus according to the present invention consumes because the transfer film 22 and the recording paper 30 are contact-charged by installing the brushes 23 and 24 to facilitate electrostatic adsorption even at a low voltage. There is an advantage that can save power, and also has the advantage that no environmental pollutants such as ozone generated in the conventional wire charging method is generated.

이상에서 설명한 바와 같이 본 고안은 전력 절약형 및 환경오염방지에 유리한 화상형성기의 급지장치를 제공한다.As described above, the present invention provides a paper feeder of an image forming apparatus that is advantageous in power saving and environmental pollution prevention.

Claims (1)

기록지를 전사드럼에 부착시켜서 급지시키는 화상형성기의 급지장치에 있어서, 상기 전사드럼의 전사필름을 대전시키는 제1브러쉬와 기록지를 대전시키는 제2브러쉬를 상기 전사드럼에 접촉설치하여 구성한 것을 특징으로 하는 화상형성기의 급지장치.A paper feeder of an image forming apparatus for attaching and feeding a recording paper to a transfer drum, wherein the first brush for charging the transfer film of the transfer drum and the second brush for charging the recording paper are formed in contact with the transfer drum. Paper feeder of the image forming machine.
KR2019930029005U 1993-12-22 1993-12-22 Paper feeder of image forming machine KR0138619Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019930029005U KR0138619Y1 (en) 1993-12-22 1993-12-22 Paper feeder of image forming machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019930029005U KR0138619Y1 (en) 1993-12-22 1993-12-22 Paper feeder of image forming machine

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KR950020504U KR950020504U (en) 1995-07-26
KR0138619Y1 true KR0138619Y1 (en) 1999-04-01

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