KR100695751B1 - Heating Roller - Google Patents

Heating Roller Download PDF

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KR100695751B1
KR100695751B1 KR1020050072888A KR20050072888A KR100695751B1 KR 100695751 B1 KR100695751 B1 KR 100695751B1 KR 1020050072888 A KR1020050072888 A KR 1020050072888A KR 20050072888 A KR20050072888 A KR 20050072888A KR 100695751 B1 KR100695751 B1 KR 100695751B1
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South Korea
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heat
heating roller
heating
metal plate
magnetic metal
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KR1020050072888A
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Korean (ko)
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송규섭
한재섭
김광수
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주식회사 에이팩
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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
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2053—Structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating
    • 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
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2064—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat combined with pressure
    • 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
    • G03G21/1685—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 fixing unit
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/14—Tools, e.g. nozzles, rollers, calenders
    • H05B6/145—Heated rollers

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fixing For Electrophotography (AREA)

Abstract

본 발명은 내구성 및 열전달 효율을 향상시켜 발열온도를 신속하게 높일 수 있도록 하여 토너의 정착효율을 증가시킬 수 있도록 한 히팅롤러에 관한 것으로, 더욱 상세하게는 외부의 유도 가열에 의하여 히팅롤러 표면에서 유도발열이 이루어지고, 열이 히팅롤러 내에서 효과적으로 전달되도록 하기 위해 내부 구성원의 재질에 따른 조밀도차를 이용하며, 넓은 정착면의 확보를 통해 인쇄 품질의 개선이 가능하도록 한 히팅롤러에 관한 것이다.The present invention relates to a heating roller that can increase the fixing efficiency of the toner by improving the durability and heat transfer efficiency to quickly increase the heat generation temperature, more specifically, induction from the heating roller surface by the external induction heating It relates to a heating roller that generates heat, uses a density difference according to a material of an inner member to efficiently transfer heat in the heating roller, and improves print quality by securing a wide fixing surface.

이를 위해, 본 발명은 외부가열장치(50)에 의해 유도가열되며 문자, 글자 등이 전사되어 이송된 복사지(P)를 가열,가압하여 토너를 정착시키도록 프린터에 히팅롤러를 설치하되, 상기 히팅롤러는 회전축 방향으로 열이 전도되는 것을 방지하기 위해 지지구동축(5)의 외주면에 압착되도록 구비되는 내부단열재(10)와; 상기 외부가열장치(50)의 유도 가열에 의해 발열되며 히팅롤러 내에서 열이 전달되도록 내부단열재(10)의 외주면에 압착되도록 구비되는 자성체금속판(15)과; 상기 자성체금속판(15)의 열이 외부로 전달되도록 상기 자성체금속판(15)의 외주면에 압착되는 몸체가 실리콘러버로 형성되는 외부절연재(20)와; 상기 복사지(P)가 말리는 것을 방지하기 위해 상기 외부절연재(20)의 외주면에 압착되는 몸체가 테플론으로 형성되는 코팅층(25)이; 구성됨에 있어서, 상기 내부단열재(10)는 중공형 세라믹볼로 형성되고, 상기 자성체금속판(15)은 몸체가 타공판 또는 메쉬망 중 어느 하나로 형성되도록 구성되어 이루어진다.To this end, the present invention is installed by the heating roller in the printer to fix the toner by induction heating by the external heating device 50, heat, press the copy paper (P) transferred and transferred to the letter, letters, etc., the heating The roller has an inner heat insulating material 10 provided to be pressed on the outer circumferential surface of the support drive shaft 5 to prevent heat from being conducted in the direction of the rotation axis; A magnetic metal plate 15 that is heated by induction heating of the external heating device 50 and is compressed to the outer circumferential surface of the internal insulation 10 so that heat is transferred in the heating roller; An outer insulating material 20 in which a body pressed on the outer circumferential surface of the magnetic metal plate 15 is made of silicon rubber so that heat of the magnetic metal plate 15 is transferred to the outside; In order to prevent the copying paper P from curling, a coating layer 25 having a body compressed on an outer circumferential surface of the outer insulating material 20 is formed of Teflon; In the configuration, the inner heat insulating material 10 is formed of a hollow ceramic ball, the magnetic metal plate 15 is made so that the body is formed of any one of a perforated plate or a mesh net.

히팅롤러, 단열층, 자성체금속판, 닙(nip-point), 코팅 Heating roller, heat insulation layer, magnetic metal plate, nip (point), coating

Description

히팅롤러{Heating Roller}Heating Roller

도 1은 종래 히팅롤러의 개략도,1 is a schematic view of a conventional heating roller,

도 2는 본 발명에 따른 히팅롤러의 개략도,2 is a schematic view of a heating roller according to the present invention;

도 3은 본 발명에 따른 히팅롤러의 단면도,3 is a cross-sectional view of the heating roller according to the present invention,

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

5 : 지지구동축 10 : 내부단열재5: support drive shaft 10: internal insulation

15 : 자성체금속판 20 : 외부절연재15: magnetic metal plate 20: external insulating material

25 : 코팅층 30 : 히팅롤러25 coating layer 30 heating roller

35 : 가압롤러 40 : 할로겐램프35: pressure roller 40: halogen lamp

45 : 발열선 50 : 외부가열장치45: heating wire 50: external heating device

55 : 닙(nip) P : 복사지55: nip P: copy paper

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t : 토너t: toner

본 발명은 히팅롤러에 관한 것으로, 더욱 상세하게는 외부의 유도 가열에 의하여 히팅롤러 표면에서 유도발열이 이루어지고, 열이 히팅롤러 내에서 효과적으로 전달되도록 함으로써, 내구성 및 열전달 효율을 향상시켜 발열온도를 신속하게 높일 수 있도록 하여 토너의 정착효율을 증가시키는 것이 가능한 히팅롤러에 관한 것이다.The present invention relates to a heating roller, and more particularly, induction heating is performed on the surface of the heating roller by external induction heating, and heat is effectively transferred within the heating roller, thereby improving durability and heat transfer efficiency, thereby generating an exothermic temperature. The present invention relates to a heating roller capable of increasing quickly to increase the fixing efficiency of the toner.

레이저 빔 프린터는 인쇄속도가 빠르고, 해상도가 높고, 소음이 적고, 기록용지를 다양하게 사용할 수 있어 프린터가 단독으로 사용될 뿐만 아니라 전자사진기기를 이용한 복사기, 팩스 등에도 널리 사용되는데 컴퓨터의 화상 데이터가 프린트되는 과정을 살펴보면 다음과 같다.Laser beam printers have fast printing speed, high resolution, low noise and various recording papers, so they are not only used as printers but also widely used for copiers and faxes using electrophotographic equipment. The process of printing is as follows.

컴퓨터의 화상 데이터가 프린터로 전송되면 화상 데이터는 광학부에서 레이저 광으로 변환되어 감광체로 주사되고, 감광체로 주사된 레이저 광은 빛을 받은 부분을 도전체로 변화시켜 빛을 받지 못한 부분과의 사이에 전위차를 발생시켜 감광체에 잠상을 형성시키고, 잠상이 형성된 감광체가 현상부를 통과하면서 잠상에 토너가 붙고, 기록용지가 분사 전사 차저(charger) 사이로 지나가면서 상기 감광체의 잠상에 붙은 토너가 기록용지로 전사된 후, 기록용지가 정착장치를 지나면서 열과 압력이 가해져 토너가 기록용지에 고착된다.When the image data of the computer is transmitted to the printer, the image data is converted into the laser light in the optical part and scanned by the photosensitive member. The laser light scanned by the photosensitive member converts the lighted part into a conductor and between the part that is not A latent image is formed on the photosensitive member by generating a potential difference, and the toner adheres to the latent image as the latent image-sensitive member passes through the developing portion, and the recording paper passes between the injection transfer chargers, and the toner attached to the latent image of the photosensitive member is transferred to the recording paper. After the recording paper passes through the fixing unit, heat and pressure are applied to the toner to adhere to the recording paper.

상기 정착과정은 상기 전사과정에서 용지에 전사된 토너 화상을 열과 압력을 가하여 고착시키는 과정으로, 통상 서로 맞대어 회전하는 한 쌍의 롤러로 이루어지는 정착기에 의해 수행되며, 상기 정착기를 구성하는 한 쌍의 롤러 중 하나는 압력 롤러이며, 다른 하나는 히팅롤러이다.The fixing process is a process of fixing a toner image transferred to a sheet in the transfer process by applying heat and pressure, and is usually performed by a fixing unit comprising a pair of rollers rotating against each other, and the pair of rollers constituting the fixing unit. One is a pressure roller and the other is a heating roller.

일반적으로 히팅롤러는 기기 내부의 배지측 구간에 설치되고, 드럼에 의해 가시상이 형성된 기록용지가 배지될 때 용지 상에 전사된 문자, 그림 등을 가열/가압하여 정착시키기 위하여, 소정을 발열수단을 필요로 한다.In general, the heating roller is installed in the discharge section of the inside of the machine, and when heating the recording paper with visible images by the drum is discharged, a predetermined heating means is used to fix and fix the transferred characters and pictures on the paper. in need.

도 1은 종래 히팅롤러의 개략도이다.1 is a schematic view of a conventional heating roller.

도면을 참조하면, 종래의 히팅롤러(30)는 기기본체의 지지베어링에 설치되어 토너(t)가 형성한 가시상을 정착시키는 히팅롤러(30)와, 상기 히팅롤러(30)의 내부에 설치되며 고열의 복사열을 발생하여 히팅롤러를 발열하는 할로겐 램프(40)와, 히팅롤러(30)의 내부에 전기 저항에 의해 발열되는 발열선(45)이 포함되어 기본 구성을 이루며, 상기 발열선(45)의 열이 히팅롤러(30)의 외부로 전이됨에 의해 그 기능을 수행하게 된다.Referring to the drawings, the conventional heating roller 30 is installed on the support bearing of the machine body, the heating roller 30 to fix the visible image formed by the toner t, and the inside of the heating roller 30 And a halogen lamp 40 for generating radiant heat of high heat to heat the heating roller, and a heating wire 45 for generating heat by electric resistance in the heating roller 30 to form a basic configuration. The heat is transferred to the outside of the heating roller 30 to perform its function.

상기 할로겐 램프(40)는 히팅롤러(30)의 내부에 설치되기 때문에 전원을 외부로부터 공급받아야 하는 문제점이 발생되며, 히팅롤러(30) 전체의 체적 또한 커지고, 내부의 발열수단인 할로겐 램프(40)로부터 열이 외부로 전달되기 위한 과정에서의 열 손실에 의한 열전달 효율이 낮은 실정이다.Since the halogen lamp 40 is installed inside the heating roller 30, a problem arises in that power must be supplied from the outside, and the volume of the entire heating roller 30 also increases, and the halogen lamp 40, which is an internal heating means, is used. Heat transfer efficiency due to heat loss in the process for transferring heat to the outside from the) is low.

따라서, 히팅롤러가 목적하는 온도로 발열되기 이전에는 토너의 가열정착이 올바르게 수행되지 않기 때문에, 프린터의 구동개시 이후 얼마나 빠른 시간 내에 토너의 올바른 가열정착이 가능한지의 여부가 복사기 및 프린트 등의 성능 및 품질 향상에 크게 기인하게 된다.Therefore, since the heating and fixing of the toner is not performed correctly before the heating roller is heated to the desired temperature, it is determined whether the toner can be properly heated and fixed within a short time after the printer is started. This is largely due to quality improvement.

본 발명은 상기와 같은 문제점을 해결하기 위해 안출한 것으로서, 본 발명의 목적은 외부의 유도가열에 의해 히팅롤러가 발열되도록 하여 내부의 발열수단인 할로겐 램프를 제거하여 히팅롤러의 전체적인 체적을 줄이며, 히팅롤러를 가열하기 위한 자성체금속판을 지지구동축 외부에 구비하고, 상기 자성체금속판의 내,외주면에 단열층과 외부절연재를 형성하고, 상기 외부절연재의 외주면에 표면마찰이 적은 코팅층을 두어 내구성 및 열전달 효율을 향상 시킬 수 있는 히팅롤러를 제공하는데 있다.The present invention has been made to solve the above problems, an object of the present invention is to heat the heating roller by the external induction heating to remove the halogen lamp as a heating means of the inside to reduce the overall volume of the heating roller, A magnetic metal plate for heating the heating roller is provided outside the support drive shaft, and a heat insulating layer and an outer insulating material are formed on the inner and outer circumferential surfaces of the magnetic metal plate, and a coating layer having low surface friction is provided on the outer circumferential surface of the outer insulating material for durability and heat transfer efficiency. It is to provide a heating roller that can be improved.

상기와 같은 과제를 해결하기 위해 본 발명은 외부가열장치(50)에 의해 유도가열되며 문자, 글자 등이 전사되어 이송된 복사지(P)를 가열,가압하여 토너를 정착시키도록 프린터에 히팅롤러를 설치하되, 상기 히팅롤러는 회전축 방향으로 열이 전도되는 것을 방지하기 위해 지지구동축(5)의 외주면에 압착되도록 구비되는 내부단열재(10)와; 상기 외부가열장치(50)의 유도 가열에 의해 발열되며 히팅롤러 내에서 열이 전달되도록 내부단열재(10)의 외주면에 압착되도록 구비되는 자성체금속판(15)과; 상기 자성체금속판(15)의 열이 외부로 전달되도록 상기 자성체금속판(15)의 외주면에 압착되는 몸체가 실리콘러버로 형성되는 외부절연재(20)와; 상기 복사지(P)가 말리는 것을 방지하기 위해 상기 외부절연재(20)의 외주면에 압착되는 몸체가 테플론으로 형성되는 코팅층(25)이; 구성됨에 있어서, 상기 내부단열재(10)는 중공형 세라믹볼로 형성되고, 상기 자성체금속판(15)은 몸체가 타공판 또는 메쉬망 중 어느 하나로 형성되도록 구성되어 이루어진다.In order to solve the above problems, the present invention is a heating roller in the printer to fix the toner by induction heating by the external heating device 50 and heating, pressing the copy paper (P) transferred and transferred to the letter, letters, etc. And installed, the heating roller is an inner heat insulating material 10 is provided to be pressed on the outer circumferential surface of the support drive shaft (5) to prevent heat conduction in the rotation axis direction; A magnetic metal plate 15 that is heated by induction heating of the external heating device 50 and is compressed to the outer circumferential surface of the internal insulation 10 so that heat is transferred in the heating roller; An outer insulating material 20 in which a body pressed on the outer circumferential surface of the magnetic metal plate 15 is made of silicon rubber so that heat of the magnetic metal plate 15 is transferred to the outside; In order to prevent the copying paper P from curling, a coating layer 25 having a body compressed on an outer circumferential surface of the outer insulating material 20 is formed of Teflon; In the configuration, the inner heat insulating material 10 is formed of a hollow ceramic ball, the magnetic metal plate 15 is made so that the body is formed of any one of a perforated plate or a mesh net.

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이와 같은 특징을 갖는 본 발명은 그에 따른 바람직한 실시예를 통해 보다 명확히 설명될 수 있을 것이다.The present invention having such a feature will be more clearly described through the preferred embodiment accordingly.

이하에서는 본 발명의 바람직한 실시예를 첨부된 도면과 더불어 상세히 설명한다.Hereinafter, a preferred embodiment of the present invention will be described in detail with the accompanying drawings.

도 2는 본 발명에 따른 히팅롤러의 개략도이며, 도 3은 본 발명에 따른 히팅롤러의 단면도이다.2 is a schematic view of the heating roller according to the present invention, Figure 3 is a cross-sectional view of the heating roller according to the present invention.

도 2에서 도시된 바와 같이, 본 발명은 문자, 글자 등이 전사되어 이송된 용지를 가열/가압하여 토너를 정착시키는 히팅롤러가 설치된 프린터에 있어서, 지지구동축(5)의 외주면에 내부단열재(10)와, 자성체금속판(15)과 외부절연재(20) 및 코팅층(25)이 차례로 압착되어 구성되는 히팅롤러에 관한 것이다.As shown in Figure 2, the present invention is a printer equipped with a heating roller for fixing the toner by heating / pressing the paper transported by the letter, letters, etc., the inner heat insulating material (10) on the outer peripheral surface of the support drive shaft (5) ), The magnetic metal plate 15, the external insulating material 20 and the coating layer 25 in order to press the heating roller is configured.

상기 내부단열재(10)는 지지구동축(5)의 외주면에 압착되며, 히팅롤러에서 발생한 열이 내부로 전달되어 상기 지지구동축(5)을 손상시키는 것을 방지한다.The inner heat insulating material 10 is compressed to the outer circumferential surface of the support driving shaft 5, and the heat generated from the heating roller is transferred to the inside to prevent damage to the support driving shaft (5).

또한, 상기 내부단열재(10)는 재료 내부에 많은 공기층을 가지며, 단열성이 뛰어난 다공성의 재질인 중공형 세라믹볼(미세공극 세라믹볼)이 수용되어 단열효과를 상승시킬 수 있도록 형성된다.In addition, the inner heat insulating material 10 has a large number of air layers inside the material, and is formed to accommodate a hollow ceramic ball (microporous ceramic ball), a porous material having excellent heat insulating properties, to increase the heat insulating effect.

상기 자성체금속판(15)은 상기 내부단열재(10)의 외주면에 압착되며, 외부 발열장치(50)의 유도가열에 의해 발열되고, 히팅롤러 내에서 열이 효과적으로 전달되도록 하기 위한 것이며, 타공판 또는 메쉬망 중 어느 하나의 선택된 것으로 구성되어 유도가열에 의해 쉽게 발열 되도록 한다.The magnetic metal plate 15 is pressed on the outer circumferential surface of the inner heat insulating material 10, the heat generated by the induction heating of the external heat generating device 50, so as to effectively transfer the heat in the heating roller, perforated plate or mesh network It is composed of any one selected to be easily generated by induction heating.

상기 외부절연재(20)는 상기 자성체금속판(15)의 외주면에 압착되는 것으로 내부단열재(10)보다 열전도특성이 우세하여 열이 외부로 전이되도록 유도하기 위한 것이다.The external insulating material 20 is compressed to the outer circumferential surface of the magnetic metal plate 15 so as to induce heat to be transferred to the outside due to superior thermal conductivity than the internal insulating material 10.

또한, 상기 외부절연재(20)는 자성체금속판(15)과 코팅층(25)사이의 틈새를 채워 기밀성이 확보되도록 실리콘러버로 구성되며, 상기 외부절연재(20)의 재질에 의해 보다 넓은 닙(nip)폭을 확보할 수 있다.In addition, the external insulating material 20 is composed of a silicon rubber to ensure the airtightness by filling the gap between the magnetic metal plate 15 and the coating layer 25, a wider nip (nip) by the material of the external insulating material 20 The width can be secured.

상기 코팅층(25)은 상기 외부절연재(20)의 외주면에 압착되며, 히팅롤러의 원활한 자체 회전과 내구성을 강화시키기 위한 것이다.The coating layer 25 is pressed to the outer circumferential surface of the outer insulating material 20, to enhance smooth self-rotation and durability of the heating roller.

더욱 상세하게는, 상기 코팅층(25)은 표면 마찰력이 적은 테플론으로 구성되어 복사지(P)가 히팅롤러에 말리는 것을 방지하며, 상기 테플론은 표면 마찰력이 적어 쉽게 벗겨지지 않으며, 열에 강하고 다른 화학물질과 반응하지 않는 성질이 있어 외부가열장치(50)의 높은 열에 의해 재질이 변형거나 찢어지는 것을 방지할 수 있다.More specifically, the coating layer 25 is composed of Teflon having a low surface friction force to prevent the copy paper (P) from drying on the heating roller, the Teflon is less easily peeled off due to the surface friction force, is heat-resistant and resistant to other chemicals Since the material does not react, it is possible to prevent the material from being deformed or torn by the high heat of the external heating device 50.

상기 닙(nip)은 히팅롤러(30)와 가압롤러(35) 두 회전관체가 맞물려 돌아갈 때 발생하는 물림점으로, 닙 폭이 넓어지면 열을 받는 정착 면적이 넓어지기 때문에 프린터되는 화상의 품질을 개선할 수 있다.The nip is a bleeding point generated when the rotary rollers of the heating roller 30 and the pressure roller 35 are engaged with each other. As the nip width is widened, the nip increases the quality of the printed image. It can be improved.

상기의 구조는 지지구동축(5)의 전체적인 체적을 줄이며, 히팅롤러(30) 내부의 발열이 낮아지기 때문에 자성체금속판(15)의 내/외측에 구성된 구성원의 재질에 따른 조밀성에 의해, 상대적인 열전도 차이가 발생되는데 이것을 이용하여 유도열이 열대류에 의해 지지구동축(5) 방향인 내부로 전달되는 것은 막고, 외부로의 열전달 효율은 높아지도록 하는 것이다.Since the above structure reduces the overall volume of the support drive shaft 5 and the heat generation inside the heating roller 30 is lowered, the relative heat conduction difference is different due to the density of the members of the magnetic metal plate 15 formed in / outside. By using this, induced heat is prevented from being transferred to the inside of the support drive shaft 5 by tropical flow, and the heat transfer efficiency to the outside is increased.

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이상에서 살펴본 바와 같이, 본 발명은 내부에 가열장치가 내재되지 않고 외부 가열장치에 의해 발열되므로, 내부에 전원을 공급하기 위한 구성이 배제되어 간단한 구조를 갖게 되는 동시에 전체적인 체적이 작아지며, 표면마찰력이 적은 테플론 코팅층을 구비하여 토너가 전사되어 이송된 복사지가 히팅롤러에 말리는 것을 방지하 수 있는 이점이 있다.As described above, in the present invention, since the heating device is not embedded therein and is generated by the external heating device, the configuration for supplying power to the inside is excluded, thereby having a simple structure and reducing the overall volume, and the surface frictional force. This less teflon coating layer has the advantage of preventing the toner from being transferred and transferred to the heating roller.

또한, 본 발명은 히팅롤러의 표면에서 유도발열이 이루어지므로 정착기의 출력r 대기상태로의 접근시간이 단축되며, 히팅롤러와 가압롤러가 맞물려 회전할 때 발생하는 물림점인 닙(nip)폭이 넓게 확보되어 열을 받는 정착면이 넓어지므로 화상의 품질을 개선할 수 있는 동시에 점성이 크고 광택성이 우수한 토너와의 자체 박리성이 개선될 수 있는 효과가 있다.In addition, the present invention is because the induced heating is made on the surface of the heating roller is shortened the access time to the output of the fixing unit standby state, the width of the nip (nip) which is a biting point generated when the heating roller and the pressure roller rotates in engagement Since the fixing surface that is secured to be widened and widened is widened, the quality of the image can be improved and the self-peelability with the toner having high viscosity and gloss can be improved.

Claims (6)

외부가열장치(50)에 의해 유도가열되며 문자, 글자 등이 전사되어 이송된 복사지(P)를 가열,가압하여 토너를 정착시키도록 프린터에 히팅롤러를 설치하되, 상기 히팅롤러는 회전축 방향으로 열이 전도되는 것을 방지하기 위해 지지구동축(5)의 외주면에 압착되도록 구비되는 내부단열재(10)와; 상기 외부가열장치(50)의 유도 가열에 의해 발열되며 히팅롤러 내에서 열이 전달되도록 내부단열재(10)의 외주면에 압착되도록 구비되는 자성체금속판(15)과; 상기 자성체금속판(15)의 열이 외부로 전달되도록 상기 자성체금속판(15)의 외주면에 압착되는 몸체가 실리콘러버로 형성되는 외부절연재(20)와; 상기 복사지(P)가 말리는 것을 방지하기 위해 상기 외부절연재(20)의 외주면에 압착되는 몸체가 테플론으로 형성되는 코팅층(25)이; 구성됨에 있어서, Induction heating by the external heating device 50, a heating roller is installed in the printer to fix the toner by heating and pressing the copy paper (P) transferred and transferred to the letter, letters, etc., the heating roller is opened in the direction of the rotation axis An inner heat insulating material 10 provided to be compressed to the outer circumferential surface of the support driving shaft 5 to prevent the conduction; A magnetic metal plate 15 that is heated by induction heating of the external heating device 50 and is compressed to the outer circumferential surface of the internal insulation 10 so that heat is transferred in the heating roller; An outer insulating material 20 in which a body pressed on the outer circumferential surface of the magnetic metal plate 15 is made of silicon rubber so that heat of the magnetic metal plate 15 is transferred to the outside; In order to prevent the copying paper P from curling, a coating layer 25 having a body compressed on an outer circumferential surface of the outer insulating material 20 is formed of Teflon; In configured, 상기 내부단열재(10)는 중공형 세라믹볼로 형성되고,The internal insulation 10 is formed of a hollow ceramic ball, 상기 자성체금속판(15)은 몸체가 타공판 또는 메쉬망 중 어느 하나로 형성되도록 구성되어 이루어진 것을 특징으로 하는 히팅롤러.The magnetic metal plate 15 is a heating roller, characterized in that the body is configured to be formed of any one of a perforated plate or a mesh net. 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete
KR1020050072888A 2005-08-09 2005-08-09 Heating Roller KR100695751B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102151872B1 (en) 2019-04-16 2020-09-03 주식회사 에이아이이 Induction heating roller having contactless temperature sensor module

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09127810A (en) * 1995-10-27 1997-05-16 Minolta Co Ltd Fixing device by induction heating
JP2000214714A (en) * 1999-01-22 2000-08-04 Canon Inc Fixing roller, fixing device, and image forming device
JP2004004902A (en) 2003-06-20 2004-01-08 Ricoh Co Ltd Fixing roller and fixing device
JP2004198866A (en) 2002-12-20 2004-07-15 Kyocera Mita Corp Fixing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09127810A (en) * 1995-10-27 1997-05-16 Minolta Co Ltd Fixing device by induction heating
JP2000214714A (en) * 1999-01-22 2000-08-04 Canon Inc Fixing roller, fixing device, and image forming device
JP2004198866A (en) 2002-12-20 2004-07-15 Kyocera Mita Corp Fixing device
JP2004004902A (en) 2003-06-20 2004-01-08 Ricoh Co Ltd Fixing roller and fixing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102151872B1 (en) 2019-04-16 2020-09-03 주식회사 에이아이이 Induction heating roller having contactless temperature sensor module

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