JP2003007435A - Heating member, heating device and image forming device - Google Patents
Heating member, heating device and image forming deviceInfo
- Publication number
- JP2003007435A JP2003007435A JP2001184760A JP2001184760A JP2003007435A JP 2003007435 A JP2003007435 A JP 2003007435A JP 2001184760 A JP2001184760 A JP 2001184760A JP 2001184760 A JP2001184760 A JP 2001184760A JP 2003007435 A JP2003007435 A JP 2003007435A
- Authority
- JP
- Japan
- Prior art keywords
- heating
- heating member
- heat
- heating element
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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- Fixing For Electrophotography (AREA)
- Surface Heating Bodies (AREA)
- Control Of Resistance Heating (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は加熱部材、加熱装置
および画像形成装置に関し、特に電子写真技術において
加熱定着に使用される加熱装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating member, a heating device and an image forming apparatus, and more particularly to a heating device used for heat fixing in electrophotographic technology.
【０００２】[0002]
【従来の技術】電子写真、静電記録、磁気記録などの適
宜の画像形成プロセス手段におけるトナーを転写材（印
刷紙、エレクトロファックスシート、静電記録シートな
ど）に間接的もしくは直接的に形成担持させる装置とし
て、すなわち目的の画像情報に適応した未定着トナー像
を転写材面に加熱定着させるための装置として、一般的
に熱ローラ方式が多用されている。2. Description of the Related Art Toner in an appropriate image forming process means such as electrophotography, electrostatic recording, magnetic recording is indirectly or directly formed and carried on a transfer material (printing paper, electrofax sheet, electrostatic recording sheet, etc.). Generally, a heat roller system is widely used as a device for heating, that is, a device for heating and fixing an unfixed toner image adapted to target image information on a transfer material surface.
【０００３】熱ローラ方式の加熱装置は、ハロゲンヒー
タなどの内蔵熱源を用いて所定の加熱温度に維持させた
定着ローラとこれに圧接させた加圧ローラとの定着ニッ
プ部に転写材を導入して挟持搬送し、定着ローラから熱
を供給することで未定着画像を加熱定着させるものであ
る。A heating device of a heat roller type introduces a transfer material into a fixing nip portion between a fixing roller maintained at a predetermined heating temperature by using a built-in heat source such as a halogen heater and a pressure roller pressed against the fixing roller. The unfixed image is heat-fixed by being nipped and conveyed by supplying heat from the fixing roller.
【０００４】この熱ローラ方式を用いた加熱装置の概略
図を図７に示す。内部に発熱体９を備えた定着ローラ１
０と、それに圧接する加圧ローラ１１により定着ニップ
部Ｎが形成され、この定着ニップ部Ｎを、未定着トナー
像を担持した転写材Ｐが通過することによって定着が行
われる。定着ローラ１０の温度は温度検知素子１２によ
って監視され、発熱体９の通電を制御することによって
定着温度を確保する。FIG. 7 shows a schematic view of a heating device using this heating roller system. Fixing roller 1 having heating element 9 inside
A fixing nip portion N is formed by 0 and the pressure roller 11 that is in pressure contact with the fixing roller 0. The fixing material is fixed when the transfer material P carrying the unfixed toner image passes through the fixing nip portion N. The temperature of the fixing roller 10 is monitored by the temperature detecting element 12, and the fixing temperature is secured by controlling the energization of the heating element 9.
【０００５】しかし熱ローラ方式の加熱装置は、定着ロ
ーラの熱容量が大きいためにニップ部が定着温度に到達
するためのウエイトタイムが長く、また、ウエイトタイ
ムを短縮するために待機中に定着ローラを高温に維持す
ると消費エネルギーが大きくなるという問題がある。However, in the heating device of the heat roller type, since the fixing roller has a large heat capacity, the waiting time for the nip portion to reach the fixing temperature is long, and in order to shorten the waiting time, the fixing roller is kept in a waiting state. There is a problem that energy consumption increases when the temperature is kept high.
【０００６】これらの問題を解決するためにフィルム加
熱方式が考案され、実用化されている（特開昭６３−３
１３１８２号公報、特開平２−１５７８７８号公報）。In order to solve these problems, a film heating system has been devised and put into practical use (Japanese Patent Laid-Open No. 63-3.
13182, JP-A-2-157878).
【０００７】フィルム加熱方式の加熱装置は、低熱容量
の加熱部材や薄膜の定着フィルムを用いることができる
ために定着ニップ部を定着温度に短時間で到達すること
ができ、かつ待機中も通電加熱を行う必要がなく、ウエ
イトタイムの短縮化、省電力化に利点がある。Since the film heating type heating device can use a heating member having a low heat capacity or a thin fixing film, the fixing nip portion can reach the fixing temperature in a short time, and the heating is performed by energizing even during standby. Need not be performed, and there is an advantage in shortening the wait time and power saving.
【０００８】図８は現在実用化されているフィルム加熱
方式の加熱装置の概略図である。加熱部材１は、通電に
よって発熱する発熱体（不図示）を加熱体基板（不図
示）上に具備しており、支持体１３上に支持され、断熱
性の定着フィルム１４を介して加熱ローラ１５と圧接し
て、定着ニップ部Ｎを形成する。加圧ローラ１５の材質
は多用される中実のシリコーンゴムや、あるいは断熱性
のものでもよい。加熱部材１の温度は温度検知素子１２
によって監視され、発熱体の通電を制御することによっ
て定着温度を確保する。FIG. 8 is a schematic view of a film heating type heating device which is currently in practical use. The heating member 1 is provided with a heating element (not shown) that generates heat when energized on a heating substrate (not shown), is supported on a support 13, and has a heat roller 15 via a heat insulating fixing film 14. To form a fixing nip portion N. The material of the pressure roller 15 may be solid silicone rubber, which is often used, or heat insulating material. The temperature of the heating member 1 is the temperature detection element 12
The fixing temperature is secured by controlling the energization of the heating element, which is monitored by.
【０００９】トナーＴの未定着画像を担持した転写材Ｐ
は定着ニップ部Ｎに導入される。加圧ローラ１５の回転
駆動によって転写材Ｐは挟持搬送され、このとき定着フ
ィルム１４は従動回転する。加熱部材１から定着フィル
ム１４を介して転写ニップ部Ｎに熱が供給され、トナー
Ｔは転写材Ｐに定着される。Transfer material P carrying an unfixed image of toner T
Is introduced into the fixing nip portion N. The transfer material P is nipped and conveyed by the rotational drive of the pressure roller 15, and at this time, the fixing film 14 is driven to rotate. Heat is supplied from the heating member 1 to the transfer nip portion N via the fixing film 14, and the toner T is fixed to the transfer material P.
【００１０】上記フィルム加熱方式で用いられる従来の
加熱部材の概略図を図９に示す。加熱部材１は、発熱す
る発熱体３を加熱体基板２上に具備している。加熱体基
板２はアルミナもしくは窒化アルミ等で構成される。発
熱体３はＡｇ・Ｐｄを混合させたペーストをスクリーン
印刷して形成される。導電部４及び電極部５は、Ａｇな
どのペーストをスクリーン印刷して形成される。図示し
ないコネクタから導電部４、電極部５を介して発熱体３
に通電をおこなうことで発熱される。また、電気的絶縁
性を確保するとともに、前記定着フィルム１４との摺動
から発熱体を保護するため、ガラス材質を印刷・焼成し
た発熱体保護層６が設けられている。FIG. 9 shows a schematic view of a conventional heating member used in the above film heating system. The heating member 1 includes a heating element 3 that generates heat on a heating element substrate 2. The heating substrate 2 is made of alumina, aluminum nitride, or the like. The heating element 3 is formed by screen printing a paste in which Ag / Pd is mixed. The conductive portion 4 and the electrode portion 5 are formed by screen-printing a paste such as Ag. A heating element 3 from a connector (not shown) through the conductive portion 4 and the electrode portion 5.
Heat is generated by energizing the. Further, in order to ensure electrical insulation and protect the heating element from sliding with the fixing film 14, a heating element protection layer 6 formed by printing and firing a glass material is provided.
【００１１】上記フィルム加熱方式の加熱装置の長手方
向に注目する（図１０に図示）。発熱体３の長手寸法
は、普通紙として定めた転写材の加熱部材長手方向の定
着性が満たされるように設計される。温度検知素子１２
は加熱部材の発熱が定着温度に十分であるかを検知する
ことを目的としているため、転写材通紙部に配置され
る。Attention is paid to the longitudinal direction of the film heating type heating device (shown in FIG. 10). The longitudinal dimension of the heating element 3 is designed so that the fixing property of the transfer material defined as plain paper in the longitudinal direction of the heating member is satisfied. Temperature sensing element 12
Is for the purpose of detecting whether the heat generated by the heating member is sufficient for the fixing temperature, and therefore is disposed in the transfer material sheet passing portion.
【００１２】しかし、それよりも幅の小さなサイズ（小
サイズ紙）を通紙したとき、定着ニップ部の通紙部Ｎ−
１の熱は転写材Ｐに奪われるが、非通紙部Ｎ−２では熱
は奪われず、加熱部材１、加熱部材支持体１３、定着フ
ィルム１４、加熱ローラ１５に畜熱され、非通紙部での
昇温が起こる（非通紙部昇温）。さらに厚紙を転写材と
して通紙したとき、ニップ部の転写材端部では定着フィ
ルムと加圧ローラとの接触が得られず、特に加熱部材支
持体１３への熱伝導が極めて高くなり、転写材端部相当
付近では局部的な温度は極めて高くなる。特に連続通紙
時ではこの畜熱が大きくなって熱的ピークをもち、温度
検知素子１２によって発熱を制御している通紙部に比較
して非常に大きくなり、局所的に熱的破壊が発生する可
能性がある。However, when a sheet having a width smaller than that (small size sheet) is passed, the sheet passing portion N- of the fixing nip portion is passed.
Although the heat of 1 is taken by the transfer material P, the heat is not taken by the non-paper passing portion N-2, and the heat is absorbed by the heating member 1, the heating member support 13, the fixing film 14, and the heating roller 15, and the non-paper passing is performed. The temperature rises in the section (temperature rise in non-sheet passing area). Further, when thick paper is passed as a transfer material, contact between the fixing film and the pressure roller cannot be obtained at the end of the transfer material in the nip portion, and particularly heat conduction to the heating member support 13 becomes extremely high. The local temperature becomes extremely high near the edge. In particular, during continuous paper feeding, this storage heat becomes large and has a thermal peak, which is extremely large compared to the paper passing portion where heat generation is controlled by the temperature detection element 12, causing thermal destruction locally. there's a possibility that.
【００１３】さらに、加熱部材保持体１３や加圧ローラ
１５など加熱装置内の部材の材質を断熱性としたとき、
定着ニップ部Ｎ長手方向に熱伝導が小さくなるために畜
熱はよりシャープな熱的ピークとなり、局部的な温度は
高くなる。また、高速化に伴うスループットアップや発
熱量アップによっても同様で、これらは熱的破壊の起因
となる可能性をもつ。Further, when the materials of the members such as the heating member holder 13 and the pressure roller 15 in the heating device are made heat insulating,
Since the heat conduction decreases in the longitudinal direction of the fixing nip portion N, the storage heat has a sharper thermal peak and the local temperature becomes higher. The same applies to the increase in throughput and the increase in the amount of heat generated due to the increase in speed, and these may cause thermal destruction.
【００１４】上記問題を解決するために、加熱装置を構
成する部材に熱伝導異方性を持たせる方法が開示されて
いる（特願平１１−１７４９０５号、特願平１０−３２
９６９０号）。特願平１１−１７４９０５号は、加熱フ
ューザ部材（加熱装置に使われる部材）のエラストマー
層を、熱伝導異方性を持った物質で構成することによ
り、発熱部が発した熱をより加熱装置横断方向（発熱
体、熱ローラ→加圧ローラ方向）へ熱伝導を助長させる
構成としていると考えられる。特願平１０−３２９６９
０号は熱ローラ方式の熱ローラに熱伝導異方性を持たせ
る構成に限定している。In order to solve the above problems, a method of imparting heat conduction anisotropy to a member constituting a heating device has been disclosed (Japanese Patent Application Nos. 11-174905 and 10-32).
9690). Japanese Patent Application No. 11-174905 discloses that a heating fuser member (a member used in a heating device) is made of an elastomer layer made of a substance having thermal conductivity anisotropy, so that the heat generated by a heat generating portion is more heated. It is considered that the heat conduction is promoted in the transverse direction (heater, heat roller → pressure roller direction). Japanese Patent Application No. 10-32969
No. 0 is limited to a heat roller type heat roller having a heat conduction anisotropy.
【００１５】しかしながら、フィルム加熱方式における
加熱部材に、定着ニップ部長手方向（特願平１１−１７
４９０５号の装置横断方向とは垂直方向）への熱伝導を
高める構成とするものは知られていない。However, in the heating member in the film heating system, the fixing nip is formed in the longitudinal direction (Japanese Patent Application No. 11-17).
There is no known structure of No. 4905 that enhances heat conduction in a direction perpendicular to the transverse direction of the apparatus).
【００１６】[0016]
【発明が解決しようとする課題】本発明は、非通紙部昇
温による局部的熱的ピークの緩和、熱的破壊の防止、熱
の逃げを効果的に改善する加熱部材、加熱装置および画
像形成装置の提供することを課題とする。SUMMARY OF THE INVENTION The present invention is directed to a heating member, a heating device, and an image, which alleviate a local thermal peak due to a temperature rise in a non-sheet passing portion, prevent thermal destruction, and effectively improve heat escape. An object is to provide a forming device.
【００１７】[0017]
【課題を解決するための手段】本発明は以下の通りであ
る。
（１）加熱部材と、該加熱部材を支持する加熱部材支持
体と、該加熱部材支持体の周囲に設けられた円筒状のフ
ィルムと、該フィルムを介して該加熱部材と圧接する加
圧ローラとを有する加熱装置に用いられる加熱部材であ
って、該加熱部材は、加熱体基板と該加熱体基板の上に
設けられた発熱体とを有し、熱伝導異方性を有すること
を特徴とする加熱部材。
（２）前記加熱部材は熱伝導異方体層を有することを特
徴とする（１）の加熱部材。
（３）前記熱伝導異方体層は、前記発熱体に対して加熱
体基板の裏面、発熱体と加熱体基板の間、又は加熱体基
板の上の発熱体のさらに上、の少なくともいずれかに配
置されることを特徴とする（２）の加熱部材。
（４）前記加熱体基板自体が熱伝導異方体であることを
特徴とする（１）の加熱部材。
（５）前記加熱部材は前記熱伝導異方体層を有し、か
つ、加熱体基板自体が熱伝導異方体であることを特徴と
する（１）の加熱部材。
（６）前記熱伝導異方体層は、前記発熱体に対して加熱
体基板の裏面、発熱体と加熱体基板の間、又は加熱体基
板の上の発熱体のさらに上、の少なくともいずれかに配
置されることを特徴とする（５）の加熱部材。
（７）前記熱伝導異方体は、グラファイト材料から構成
されることを特徴とする（２）〜（６）のいずれかの加
熱部材。
（８）加熱体基板と該加熱体基板の上に設けられた発熱
体とを有する加熱部材と、該加熱部材を支持する加熱部
材支持体と、該加熱部材支持体の周囲に設けられた円筒
状のフィルムと、該フィルムを介して該加熱部材と圧接
する加圧ローラとを有する加熱装置において、前記加熱
部材が（１）〜（７）のいずれかの加熱部材であること
を特徴とする加熱装置。
（９）転写材上に画像を形成する像形成手段と、該転写
材上の画像を定着する定着手段とを有する画像形成装置
において、前記定着手段は（８）の加熱装置であること
を特徴とする画像形成装置。The present invention is as follows. (1) A heating member, a heating member support that supports the heating member, a cylindrical film provided around the heating member support, and a pressure roller that comes into pressure contact with the heating member through the film. A heating member used in a heating device having: a heating member having a heating body substrate and a heating element provided on the heating body substrate, and having heat conduction anisotropy. And heating element. (2) The heating member according to (1), wherein the heating member has a heat conductive anisotropic layer. (3) The heat-conducting anisotropic layer is at least one of the rear surface of the heating element substrate, the space between the heating elements and the heating element substrate, or the heating element on the heating element substrate. The heating member according to (2), characterized in that the heating member is arranged in. (4) The heating member according to (1), wherein the heating body substrate itself is a heat-conducting anisotropic body. (5) The heating member according to (1), wherein the heating member has the heat conduction anisotropic layer, and the heating body substrate itself is a heat conduction anisotropic body. (6) The heat-conducting anisotropic layer is at least one of the back surface of the heating element substrate, the space between the heating elements and the heating element substrate, or the heating element on the heating element substrate. The heating member according to (5), characterized in that (7) The heating member according to any one of (2) to (6), wherein the heat conducting anisotropic body is made of a graphite material. (8) A heating member having a heating element substrate and a heating element provided on the heating element substrate, a heating element support for supporting the heating element, and a cylinder provided around the heating element support. In a heating device having a sheet-shaped film and a pressure roller that is in pressure contact with the heating member via the film, the heating member is any one of (1) to (7). Heating device. (9) In an image forming apparatus having an image forming means for forming an image on a transfer material and a fixing means for fixing the image on the transfer material, the fixing means is the heating device of (8). Image forming apparatus.
【００１８】[0018]
【発明の実施の形態】以下、本発明を、図を用いて詳細
に説明するがこれらに限定されない。
＜１＞本発明の加熱部材
本発明の加熱部材は、フィルム加熱方式の加熱装置に用
いられる加熱部材であって、加熱体基板と該加熱体基板
の上に設けられた発熱体とを有し、熱伝導異方性を有す
ることを特徴とする。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the drawings, but is not limited thereto. <1> Heating Member of the Present Invention The heating member of the present invention is a heating member used in a heating device of a film heating type, and has a heating body substrate and a heating element provided on the heating body substrate. , And has heat conduction anisotropy.
【００１９】図１は、本発明の加熱部材の好ましい一つ
の形態の概略構成図を示す。FIG. 1 is a schematic configuration diagram of a preferred embodiment of the heating member of the present invention.
【００２０】加熱部材１は、加熱体基板２、該加熱体基
板２の片面に形成具備された発熱体３、導電部４、電極
部５、発熱体保護層６を有し、加熱体基板に熱伝導異方
性を持たせるために加熱体基板が熱伝導異方体層を有す
ることが好ましい。図１において、熱伝導異方体層７は
発熱体３に対して加熱体基板２の裏面に形成具備され、
熱伝導異方体保護層８によって保護される。The heating member 1 has a heating element substrate 2, a heating element 3 formed on one surface of the heating element substrate 2, a conductive part 4, an electrode part 5, and a heating element protection layer 6, and is provided on the heating element substrate. It is preferable that the heating body substrate has a heat conduction anisotropic layer in order to have heat conduction anisotropy. In FIG. 1, the heat-conducting anisotropic layer 7 is formed on the back surface of the heating body substrate 2 with respect to the heating body 3, and
It is protected by the heat conduction anisotropic protective layer 8.
【００２１】加熱体基板２は、耐熱性、電気絶縁性、低
熱容量、高剛性の材料で構成されるのが好ましく、例え
ば、窒化アルミニウムが挙げられる。また、炭化珪素、
酸化アルミニウムもしくはＳＵＳ等の金属材料に絶縁層
を構成させたものも好適に用いられる。The heating element substrate 2 is preferably made of a material having heat resistance, electrical insulation, low heat capacity, and high rigidity, such as aluminum nitride. Also, silicon carbide,
A material having an insulating layer formed of a metal material such as aluminum oxide or SUS is also preferably used.
【００２２】発熱体３としては、抵抗発熱体である銀パ
ラジウム（Ａｇ・Ｐｂ）、Ｔａ2Ｎなどが挙げられ、前
記加熱体基板上にスクリーン印刷などによりパターン塗
工して設けることができる。発熱体は、加熱体基板２の
長さ方向に対して若干短く、定着に十分な長さを有する
もので、また、パラレルに２本配置して用いることが、
発熱体に電流を供給する不図示の電源コネクタを１つに
でき、コストダウン、省スペースの点から好ましい。導
電部４、電極部５は、図１（ａ）のような回路を組んで
電極部５から電力を発熱体３に供給するもので、Ａｇな
どの導電材料をペーストとして用いスクリーン印刷など
により加熱体基板３上にパターン塗工することで形成で
きる。発熱体保護層６は、発熱体３を機械的破壊、化学
的侵食から保護し、かつ電気的絶縁を保つために発熱体
３の上をガラス質等で被覆するように設けられることが
好ましい。Examples of the heating element 3 include silver-palladium (Ag.Pb) and Ta 2 N, which are resistance heating elements, and can be provided by pattern coating on the heating element substrate by screen printing or the like. The heating element is a little short in the length direction of the heating element substrate 2 and has a length sufficient for fixing, and it is preferable to use two heating elements arranged in parallel.
One power connector (not shown) for supplying current to the heating element can be provided, which is preferable in terms of cost reduction and space saving. The conductive part 4 and the electrode part 5 form a circuit as shown in FIG. 1A and supply electric power from the electrode part 5 to the heating element 3. The conductive part 4 and the electrode part 5 are heated by screen printing using a conductive material such as Ag as a paste. It can be formed by pattern coating on the body substrate 3. The heating element protection layer 6 is preferably provided so as to cover the heating element 3 with glass or the like in order to protect the heating element 3 from mechanical destruction and chemical erosion and to maintain electrical insulation.
【００２３】熱伝導異方体層７は、大きな熱伝導異方性
をもつグラファイト材料で構成される熱伝導異方体から
なることが好ましい。図２に示すようにグラファイト
は、炭素原子の縮合六員環層面がａｂ面で平面状に広が
り、この層面がｃ軸方向に幾重にも積み重なった、いわ
ゆるグラファイト型結晶構造を持っている。炭素原子間
の結合は、ａｂ面で正三角形をなす隣合する３つの炭素
原子と共有結合をしており、ｃ軸方向の炭素原子とはフ
ァン・デル・ワールス結合をなす。共有結合はファン・
デル・ワールス結合に比べて非常に強い結合であり、そ
のため、ａｂ面方向とｃ軸方向では電気的・熱的物性な
どで大きな異方性をもつ。ここで熱伝導はａｂ面方向の
方がｃ軸方向よりも非常に大きい。The heat conducting anisotropic layer 7 is preferably made of a heat conducting anisotropic body made of a graphite material having a large heat conducting anisotropy. As shown in FIG. 2, graphite has a so-called graphite type crystal structure in which a condensed six-membered ring layer surface of carbon atoms spreads in a plane in the ab plane, and the layer surfaces are stacked in multiple layers in the c-axis direction. The bond between carbon atoms forms a covalent bond with three adjacent carbon atoms forming an equilateral triangle on the ab plane, and forms a van der Waals bond with the carbon atom in the c-axis direction. Covalent bond is a fan
The bond is much stronger than the Del Waals bond, and therefore has large anisotropy in terms of electrical and thermal properties in the ab plane direction and the c-axis direction. Here, heat conduction is much larger in the ab plane direction than in the c axis direction.
【００２４】熱伝導異方体層に用いられるグラファイト
材料としては、例えば、０．１mm厚のシート材料である
ＰＧＳグラファイトシート（品番EYXGX182510、松下電
器（株）製）等が挙げられる。Examples of the graphite material used for the heat conductive anisotropic layer include a PGS graphite sheet (product number EYXGX182510, manufactured by Matsushita Electric Co., Ltd.) which is a sheet material having a thickness of 0.1 mm.
【００２５】前記グラファイトシートを加熱部材に設け
た場合の加熱部材面方向、厚み方向の熱的・電気的性質
を他の金属と比較したものを表１に示す。このグラファ
イトシートは７００℃程度まで酸化されない、耐熱性の
優れたものである。Table 1 shows the thermal and electrical properties in the surface direction and thickness direction of the heating member when the graphite sheet is provided on the heating member in comparison with other metals. This graphite sheet does not oxidize up to about 700 ° C. and has excellent heat resistance.
【００２６】[0026]
【表１】 [Table 1]
【００２７】なお、本発明において熱伝導異方体として
上記グラファイト材料以外にも、例えば特開平８−２３
１８３号公報に示されている以下のグラファイト材料を
用いることが出来る。In the present invention, other than the above graphite material as the heat conducting anisotropic body, for example, Japanese Patent Application Laid-Open No. 8-23.
The following graphite materials disclosed in Japanese Patent No. 183 can be used.
【００２８】グラファイト結晶の配向のそろった高結晶
グラファイト、特にロッキング特性（理学電機社製ロー
タフレックスＲＵ−２００Ｂ型Ｘ線回折装置で測定し
た、グラファイト（０００２）線のピーク）が２０度以
下のものが好ましく、炭化水素系ガスを用いＣＶＤ法に
よって炭素原子を基板上に積層させてからアニーリング
して得られたもの、特定の高分子化合物のフィルムをグ
ラファイト化したものを挙げることができる。Highly crystalline graphite having a uniform orientation of graphite crystals, particularly one having a rocking characteristic (graphite (0002) line peak measured by a Rigaku Denki Rotaflex RU-200B type X-ray diffractometer) of 20 degrees or less. Preferred are those obtained by stacking carbon atoms on a substrate by a CVD method using a hydrocarbon-based gas and then annealing, and those obtained by graphitizing a film of a specific polymer compound.
【００２９】ここで特定の高分子化合物として、各種ポ
リオキサジアゾール（ＰＯＤ）、ポリベンゾジアゾール
（ＰＢＴ）、ポリベンゾビスチアゾール（ＰＢＢＴ）、
ポリベンゾオキサゾール（ＰＢＢＯ）、各種ポリイミド
（ＰＩ）、各種ポリアミド（ＰＡ）、ポリフェニレンベ
ンゾイミダゾール（ＰＢＩ）、ポリフェニレンベンゾビ
スイミダゾール（ＰＢＢＩ）、ポリチアゾール（Ｐ
Ｔ）、ポリパラフェニレンビニレン（ＰＰＶ）からなる
群の中から少なくとも一つを使用することができる。熱
伝導異方体層７は、その熱伝導を図１のように加熱部材
面方向に高く、厚み方向に低くなるように配置する。Here, as specific polymer compounds, various polyoxadiazoles (POD), polybenzodiazoles (PBT), polybenzobisthiazoles (PBBT),
Polybenzoxazole (PBBO), various polyimides (PI), various polyamides (PA), polyphenylenebenzimidazole (PBI), polyphenylenebenzobisimidazole (PBBI), polythiazole (P
At least one selected from the group consisting of T) and polyparaphenylene vinylene (PPV) can be used. The heat conduction anisotropic layer 7 is arranged so that its heat conduction is high in the heating member surface direction and low in the thickness direction as shown in FIG.
【００３０】熱伝導異方体保護層８は、熱伝導異方体層
７を機械的破壊から保護し、かつ電気的絶縁を保つため
に、ガラス質等を用いて熱伝導異方体層７を被覆するよ
うに設けることが好ましい。熱伝導異方体保護層８は、
例えば、前記加熱体基板２上のグラファイトシートの上
からガラス質をスクリーン印刷し、焼成することにより
形成できる。The heat-conducting anisotropic layer 7 is made of glass or the like in order to protect the heat-conducting anisotropic layer 7 from mechanical damage and to maintain electrical insulation. Is preferably provided so as to cover. The heat conducting anisotropic protective layer 8 is
For example, it can be formed by screen-printing a glass material on the graphite sheet on the heating body substrate 2 and firing it.
【００３１】なお、熱伝導異方体層７の異方特性ならび
に寸法は、それを用いる加熱部材、加熱装置ならびに画
像形成装置の設計構想によって規定されるものである。The anisotropic characteristics and dimensions of the heat conductive anisotropic layer 7 are defined by the design concept of the heating member, heating device and image forming apparatus using the same.
【００３２】例えば熱伝導異方性をより高めたいときは
高純度あるいは単結晶グラファイトを用いたり、または
厚みを増したりすることが好ましい。ウエイトタイムを
短縮化するためには熱容量を小さく、あるいは厚みを薄
くすることが好ましい。また、非通紙昇温の場所に合わ
せて長手寸法を適正化し、定着ニップ部を広くするとき
は定着ニップ部の幅に合わせて熱伝導異方体の幅も適度
に広くすることが好ましい。For example, when it is desired to further increase the thermal conductivity anisotropy, it is preferable to use high purity or single crystal graphite, or to increase the thickness. In order to shorten the wait time, it is preferable to reduce the heat capacity or reduce the thickness. Further, when the lengthwise dimension is optimized in accordance with the place where the temperature does not pass through the paper and the fixing nip portion is widened, it is preferable that the width of the heat conducting anisotropic body is appropriately widened in accordance with the width of the fixing nip portion.
【００３３】また、図１では熱伝導異方体層を発熱体に
対して加熱体基板の裏面に配置したが、発熱体と加熱体
基板の間に配置してもよい。図４に該構成の加熱部材の
概略図を示す。In FIG. 1, the heat-conducting anisotropic layer is arranged on the back surface of the heating element substrate with respect to the heating element, but it may be arranged between the heating element and the heating element substrate. FIG. 4 shows a schematic view of the heating member having the structure.
【００３４】加熱体基板２の上に熱伝導異方体層７を配
置し、熱伝導異方性は図１と同様、定着ニップ部面に対
して高く、厚み方向に対して低くなるように設置する。
熱伝導異方体層７の上に熱伝導異方体保護層８をコート
する。熱伝導異方体保護層８の上に発熱体３、導電部
４、電極部５を設ける。図４の構成の加熱部材におい
て、熱伝導異方体保護層８は、熱伝導異方体層７、発熱
体３、導電部４、電極部５との電気的絶縁を確保し、か
つその表面性の凹凸による発熱分布の不均一がないよう
留意して形成されることが好ましい。最後に発熱体保護
層６をコートする。The heat conduction anisotropic layer 7 is arranged on the heating body substrate 2 so that the heat conduction anisotropy is higher with respect to the fixing nip surface and lower with respect to the thickness direction, as in FIG. Install.
The heat conducting anisotropic body protective layer 8 is coated on the heat conducting anisotropic body layer 7. The heat generating element 3, the conductive portion 4, and the electrode portion 5 are provided on the heat conductive anisotropic protective layer 8. In the heating member configured as shown in FIG. 4, the heat-conducting anisotropic body protective layer 8 ensures electrical insulation from the heat-conducting anisotropic body layer 7, the heating element 3, the conductive portion 4, and the electrode portion 5, and the surface thereof. It is preferable to be formed with care so that there is no uneven heat generation distribution due to the unevenness of the property. Finally, the heating element protective layer 6 is coated.
【００３５】図４に示す加熱部材において、発熱体３か
らの熱は、熱伝導異方体層７を通して加熱体基板２に伝
えられるので均一化される。また、図１に示す構成の加
熱部材と比較して、熱伝導異方体層７が定着ニップ部Ｎ
に近づくので、定着フィルム１４ひいては加圧ローラ１
５の局部的な畜熱をさらに緩和する効果が得られる。In the heating member shown in FIG. 4, the heat from the heating element 3 is transferred to the heating element substrate 2 through the heat conducting anisotropic layer 7 so that it is made uniform. Further, as compared with the heating member having the configuration shown in FIG. 1, the heat conducting anisotropic layer 7 has the fixing nip portion N.
The fixing film 14 and thus the pressure roller 1
The effect of further mitigating the local livestock heat of 5 can be obtained.
【００３６】さらに好ましい加熱部材の形態として、図
５に示す構成を有する加熱部材が挙げられる。加熱体基
板２の上に発熱体３をスクリーン印刷し、その上に発熱
体保護層６を形成し、さらにその上に熱伝導異方体層
７、熱伝導異方体保護層８を配置する。熱伝導は図１及
び図４に示す構成の加熱部材と同様に定着ニップ部面に
対して高く、厚み方向に低くなるように設計する。A more preferable form of the heating member is a heating member having the structure shown in FIG. The heating element 3 is screen-printed on the heating element substrate 2, the heating element protective layer 6 is formed thereon, and the heat conduction anisotropic layer 7 and the heat conduction anisotropic layer protection layer 8 are arranged thereon. . The heat conduction is designed to be higher with respect to the fixing nip portion surface and lower in the thickness direction like the heating member having the configuration shown in FIGS. 1 and 4.
【００３７】図４に示す加熱部材よりも、熱伝導異方体
層が定着ニップ部に近づくので、定着フィルム１４ひい
ては加圧ローラ１５の局部的な畜熱をさらに緩和する効
果が得られる。Since the heat-conducting anisotropic layer is closer to the fixing nip portion than the heating member shown in FIG. 4, the effect of further mitigating the local heat storage of the fixing film 14 and thus the pressure roller 15 can be obtained.
【００３８】本発明の加熱部材は、他の形態として加熱
体基板自体が熱伝導異方体であってもよい。該構成の加
熱部材の概略図を図６に示す。加熱部材基板２自体が熱
伝導異方体７'である。熱伝導異方体７'は、熱伝導異方
体保護層８によって、導電部４、電極部５、図示しない
加熱部材周辺の導通部材と電気的絶縁性を確保するが、
それぞれの導通部材と電気的絶縁性が確保できれば図６
のように完全に囲む必要はない。As another form of the heating member of the present invention, the heating body substrate itself may be a heat conducting anisotropic body. A schematic view of the heating member having the above structure is shown in FIG. The heating member substrate 2 itself is the heat conduction anisotropic body 7 '. The heat conductive anisotropic body 7 ′ secures electrical insulation from the conductive portion 4, the electrode portion 5 and the conductive member around the heating member (not shown) by the heat conductive anisotropic body protective layer 8.
If electrical insulation can be secured with each conductive member,
You don't have to completely enclose it like.
【００３９】また、本発明の加熱部材は、図１、図４〜
図６の構成を組み合わせて用いることも可能である。熱
伝導異方体層を２層以上とするか、熱伝導異方体層を１
層あるいは２層以上とし、且つ加熱体基体自体を熱伝導
異方体とする組み合わせとすることで、局部的な蓄熱を
より緩和することができる。Further, the heating member of the present invention is shown in FIGS.
It is also possible to use the configurations of FIG. 6 in combination. There should be two or more layers of heat conducting anisotropic layers, or one heat conducting anisotropic layer
Local heat storage can be further mitigated by using a combination of layers or two or more layers and using the heating body substrate itself as a heat conducting anisotropic body.
【００４０】＜２＞本発明の加熱装置
本発明の加熱装置は、上述の本発明の加熱部材と、該加
熱部材を支持する加熱部材支持体と、該加熱部材支持体
の周囲に設けられた円筒状のフィルムと、該フィルムを
介して該加熱部材と圧接する加圧ローラとを有する加熱
装置である。<2> Heating Device of the Present Invention The heating device of the present invention is provided with the above-mentioned heating member of the present invention, a heating member support for supporting the heating member, and a periphery of the heating member support. A heating device having a cylindrical film and a pressure roller that is in pressure contact with the heating member via the film.
【００４１】加熱部材を上述の本発明の加熱部材を用い
る以外は、通常のフィルム加熱方式を用いた加熱装置と
同様の構成で良い。The heating member may have the same structure as the heating device using the normal film heating method except that the heating member of the present invention is used.
【００４２】具体的には、図８に示すような、従来用い
られているフィルム加熱方式を用いた加熱装置と同様の
構成のものが挙げられ、加熱部材として本発明の加熱部
材を搭載したものである。Concretely, as shown in FIG. 8, there may be mentioned the one having the same constitution as that of the conventional heating device using the film heating system, and the heating member of the present invention is mounted as the heating member. Is.
【００４３】＜３＞本発明の画像形成装置
本発明の画像形成装置は、転写材上に画像を形成する像
形成手段と、該転写材上の画像を定着する定着手段とを
有する画像形成装置において、前記定着手段が本発明の
加熱装置であること以外は、通常の画像形成装置と同様
の構成で良い。<3> Image Forming Apparatus of the Present Invention An image forming apparatus of the present invention has an image forming means for forming an image on a transfer material and a fixing means for fixing the image on the transfer material. In the above, the configuration may be the same as that of a normal image forming apparatus except that the fixing unit is the heating device of the present invention.
【００４４】[0044]
【実施例】以下に本発明を、実施例を用いて具体的に説
明する。EXAMPLES The present invention will be specifically described below with reference to examples.
【００４５】[0045]
【実施例１】上記実施の形態の図１で示される加熱部材
と同様の構造を有する加熱部材を、従来用いられている
フィルム加熱方式を用いた加熱装置（図８）の加熱部材
として搭載したものを用いた。Example 1 A heating member having the same structure as the heating member shown in FIG. 1 of the above-described embodiment was mounted as a heating member of a heating device (FIG. 8) using a conventionally used film heating system. I used one.
【００４６】具体的には図１に示すように、加熱部材１
は、加熱体基板２、該加熱体基板２の片面に形成具備さ
れた発熱体３、導電部４、電極部５、発熱体保護層６、
発熱体３に対して加熱体基板２の裏面に形成具備された
熱伝導異方体層７、熱伝導異方体保護層８によって構成
される。Specifically, as shown in FIG. 1, the heating member 1
Is a heating element substrate 2, a heating element 3 formed on one surface of the heating element substrate 2, a conductive part 4, an electrode part 5, a heating element protection layer 6,
The heat-conducting anisotropic layer 7 and the heat-conducting anisotropic protective layer 8 are formed on the back surface of the heating element substrate 2 with respect to the heating element 3.
【００４７】加熱体基板２は、耐熱性、電気絶縁性、低
熱容量、高剛性の材料である窒化アルミニウムを用いて
製造した。加熱体基板２の寸法は、転写材Ｐの搬送に対
し直交方向を長手方向として、長さ２７０ｍｍ、幅８．
７５ｍｍ、厚み１ｍｍのものを使用した。The heating element substrate 2 was manufactured using aluminum nitride, which is a material having heat resistance, electrical insulation, low heat capacity and high rigidity. The heater substrate 2 has dimensions of 270 mm in length and 8.
The one having a thickness of 75 mm and a thickness of 1 mm was used.
【００４８】発熱体３として抵抗発熱体である銀パラジ
ウム(Ａｇ・Ｐｂ)をスクリーン印刷などによりパターン
塗工した。発熱体の寸法は、加熱体基板２の長さ方向に
対し、長さ２２５ｍｍ、幅２ｍｍ、厚み１０μｍとし、
パラレルに２本配置した。As the heating element 3, silver palladium (Ag.Pb), which is a resistance heating element, was pattern-coated by screen printing or the like. The dimensions of the heating element are 225 mm in length, 2 mm in width, and 10 μm in thickness with respect to the lengthwise direction of the heating body substrate 2,
Two are arranged in parallel.
【００４９】導電部４、電極部５は、Ａｇペーストをス
クリーン印刷することにより加熱体基板３上にパターン
塗工した。発熱体保護層６は、ガラス質の保護層で形成
した。The conductive portion 4 and the electrode portion 5 were pattern-coated on the heating body substrate 3 by screen-printing Ag paste. The heating element protective layer 6 was formed of a glassy protective layer.
【００５０】熱伝導異方体層７は、０．１ｍｍ厚のパナ
ソニックグラファイトシート（商品登録）（品名：ＰＧ
Ｓグラファイトシート、品番：ＥＹＧＸ１８２５１０、
松下電器（株）製）を用いた。The heat conducting anisotropic layer 7 is a 0.1 mm thick Panasonic graphite sheet (registered product) (product name: PG
S graphite sheet, product number: EYGX182510,
Matsushita Electric Industrial Co., Ltd. was used.
【００５１】熱伝導異方体層７は、その熱伝導を図１の
ように加熱部材面方向に高く、厚み方向に低くなるよう
に配置する。熱伝導異方体層の寸法は加熱体基板２の長
さ２５０ｍｍ、幅８．３ｍｍとし、幅方向の中心は発熱
体３による発熱中心に一致させた。熱伝導異方体保護層
８は、前記加熱体基板２上に前記グラファイトシートを
配置した上から、ガラス質をスクリーン印刷し、焼成す
ることにより形成した。The heat conduction anisotropic layer 7 is arranged so that its heat conduction is high in the surface direction of the heating member and low in the thickness direction as shown in FIG. The dimensions of the heat conduction anisotropic layer were 250 mm in length and 8.3 mm in width of the heating element substrate 2, and the center in the width direction was made to coincide with the heating center of the heating element 3. The heat conduction anisotropic protective layer 8 was formed by arranging the graphite sheet on the heating body substrate 2 and then screen-printing a glass material and firing it.
【００５２】上記加熱部材を有する加熱装置を用いて、
定着フィルム、定着ローラの熱的ピークの抑制効果をみ
た。Using a heating device having the above heating member,
The effect of suppressing the thermal peak of the fixing film and fixing roller was observed.
【００５３】なお、本発明の加熱部材と比較するため
に、従来の構成の加熱部材を用いて同様に熱的ピークの
抑制効果をみた。本実施例で用いた従来の構成の加熱部
材は、加熱体基板の厚みを本発明の加熱部材の加熱体基
板と熱伝導異方体層の和に等しくし、かつ加熱体裏面
に、熱伝導異方体保護層と同様にガラス層をコートした
ものを用いる。その他の材質・寸法は等しいものとし
た。For comparison with the heating member of the present invention, the effect of suppressing the thermal peak was similarly observed by using the heating member having the conventional structure. The heating member of the conventional configuration used in this example has a thickness of the heating body substrate equal to the sum of the heating body substrate and the heat conduction anisotropic layer of the heating member of the present invention, and the heat conduction to the back surface of the heating body. The one coated with a glass layer is used in the same manner as the anisotropic protective layer. Other materials and dimensions are the same.
【００５４】測定は、転写材としてＢ５封筒を用い、非
通紙部温度が十分に飽和する所定枚数を連続通紙したと
きに行った。加熱部材裏面温度分布を図３に示し、その
ときの通紙中央部と熱的ピークの温度（転写材端部最大
温度）を表２に示す。なお測定は加熱部材と加熱部材支
持体の間に、長手方向に複数の熱電対を挿入することで
行った。The measurement was carried out when a B5 envelope was used as the transfer material and a predetermined number of sheets at which the temperature of the non-sheet passing portion was sufficiently saturated were continuously fed. FIG. 3 shows the temperature distribution on the back surface of the heating member, and Table 2 shows the temperature of the central portion of the sheet and the thermal peak (maximum temperature of the end of the transfer material) at that time. The measurement was performed by inserting a plurality of thermocouples in the longitudinal direction between the heating member and the heating member support.
【００５５】図３では縦軸に温度（℃）を、横軸に通紙
部中央からの定着ニップ部長手方向の距離（ｍｍ）をと
った。ここで９１ｍｍ付近が転写材端部である。破線が
従来品の、実線が本発明の加熱部材裏面温度分布であ
る。In FIG. 3, the vertical axis represents temperature (° C.), and the horizontal axis represents the distance (mm) in the longitudinal direction of the fixing nip portion from the center of the sheet passing portion. Here, the vicinity of 91 mm is the end of the transfer material. The broken line is the conventional product, and the solid line is the heating member back surface temperature distribution of the present invention.
【００５６】表２に示すように、熱的ピークの温度は従
来品に比べて１４℃低下した。加熱部材に、熱伝導異方
体層を熱伝導が加熱部材面方向に高くかつ厚み方向に低
くなるように設けることによって、熱伝導異方性のない
ものよりも、転写材端部の熱的ピークを効果的に緩和し
ていることがわかる。As shown in Table 2, the temperature of the thermal peak was 14 ° C. lower than that of the conventional product. By providing the heat-conducting anisotropic layer on the heating member so that the heat conduction is high in the surface direction of the heating member and low in the thickness direction, the thermal conductivity of the end portion of the transfer material is higher than that of the material having no heat conduction anisotropy. It can be seen that the peak is effectively relaxed.
【００５７】[0057]
【表２】 [Table 2]
【００５８】[0058]
【発明の効果】本発明によれば、加熱部材に熱伝導異方
性を持たせることで、非通紙部昇温による畜熱の緩和、
ひいては熱的破壊の防止、熱の逃げを効果的に改善する
ことができる。EFFECTS OF THE INVENTION According to the present invention, the heating member is provided with heat conduction anisotropy, so that the heat storage effect due to the temperature rise in the non-sheet passing portion can be alleviated.
As a result, thermal destruction can be prevented and heat escape can be effectively improved.
【図１】 本発明の加熱部材の一つの実施の形態を示す
概略図である。FIG. 1 is a schematic view showing one embodiment of a heating member of the present invention.
【図２】 グラファイト型結晶構造を示す。FIG. 2 shows a graphite type crystal structure.
【図３】 実施例における加熱部材裏面温度分布を示
す。FIG. 3 shows a heating member back surface temperature distribution in an example.
【図４】 本発明の加熱部材の一つの実施の形態を示す
概略図である。FIG. 4 is a schematic view showing one embodiment of a heating member of the present invention.
【図５】 本発明の加熱部材の一つの実施の形態を示す
概略図である。FIG. 5 is a schematic view showing one embodiment of a heating member of the present invention.
【図６】 本発明の加熱部材の一つの実施の形態を示す
概略図である。FIG. 6 is a schematic view showing one embodiment of a heating member of the present invention.
【図７】 従来例の熱ローラ方式を用いた加熱装置の概
略図である。FIG. 7 is a schematic view of a heating device using a conventional heat roller system.
【図８】 従来例のフィルム加熱方式を用いた加熱装置
の概略図である。FIG. 8 is a schematic view of a heating device using a conventional film heating system.
【図９】 従来例のフィルム加熱方式に用いられる加熱
部材の概略図である。FIG. 9 is a schematic view of a heating member used in a conventional film heating system.
【図１０】 加熱装置の長手方向の様子を示す。FIG. 10 shows a state of the heating device in the longitudinal direction.
１ 加熱部材 ２ 加熱体基板 ３ 発熱体 ４ 導電部 ５ 電極部 ６ 発熱体保護層 ７ 熱伝導異方体層 ８ 熱伝導異方体保護層 ９ 発熱体 １０ 定着ローラ １１ 加圧ローラ １２ 温度検知素子 １３ 加熱部材支持体 １４ 定着フィルム １５ 加圧ローラ Ｎ 定着ニップ部 Ｎ−１ 小サイズ紙通紙部 Ｎ−２ 非通紙部 Ｐ 転写材 Ｔ トナー 1 heating member 2 Heated substrate 3 heating element 4 Conductive part 5 electrode part 6 Heating element protective layer 7 Thermal conductive anisotropic layer 8 Thermal conductive anisotropic protective layer 9 heating element 10 fixing roller 11 Pressure roller 12 Temperature sensing element 13 Heating member support 14 Fixing film 15 Pressure roller N fixing nip N-1 Small size paper passing unit N-2 Non-sheet passing section P transfer material T toner
Claims (9)
部材支持体と、該加熱部材支持体の周囲に設けられた円
筒状のフィルムと、該フィルムを介して該加熱部材と圧
接する加圧ローラとを有する加熱装置に用いられる加熱
部材であって、 該加熱部材は、加熱体基板と該加熱体基板の上に設けら
れた発熱体とを有し、熱伝導異方性を有することを特徴
とする加熱部材。1. A heating member, a heating member support that supports the heating member, a cylindrical film provided around the heating member support, and a pressing member that presses the heating member through the film. A heating member used in a heating device having a pressure roller, the heating member having a heating body substrate and a heating element provided on the heating body substrate, and having heat conduction anisotropy. A heating member characterized by.
ことを特徴とする請求項１に記載の加熱部材。2. The heating member according to claim 1, wherein the heating member has a heat conductive anisotropic layer.
して加熱体基板の裏面、発熱体と加熱体基板の間、又は
加熱体基板の上の発熱体のさらに上、の少なくともいず
れかに配置されることを特徴とする請求項２に記載の加
熱部材。3. The heat-conducting anisotropic layer is at least on the back surface of the heating element substrate with respect to the heating element, between the heating elements and the heating element substrate, or further above the heating element on the heating element substrate. The heating member according to claim 2, wherein the heating member is arranged in either one.
ることを特徴とする請求項１に記載の加熱部材。4. The heating member according to claim 1, wherein the heating body substrate itself is a heat conducting anisotropic body.
し、かつ、加熱体基板自体が熱伝導異方体であることを
特徴とする請求項１に記載の加熱部材。5. The heating member according to claim 1, wherein the heating member has the heat conducting anisotropic layer, and the heating body substrate itself is a heat conducting anisotropic body.
して加熱体基板の裏面、発熱体と加熱体基板の間、又は
加熱体基板の上の発熱体のさらに上、の少なくともいず
れかに配置されることを特徴とする請求項５に記載の加
熱部材。6. The heat-conducting anisotropic layer is at least on the rear surface of the heating element substrate with respect to the heating element, between the heating elements and the heating element substrate, or further above the heating element on the heating element substrate. The heating member according to claim 5, wherein the heating member is arranged in either one.
から構成されることを特徴とする請求項２〜６のいずれ
か一項に記載の加熱部材。7. The heating member according to claim 2, wherein the heat-conducting anisotropic body is made of a graphite material.
れた発熱体とを有する加熱部材と、該加熱部材を支持す
る加熱部材支持体と、該加熱部材支持体の周囲に設けら
れた円筒状のフィルムと、該フィルムを介して該加熱部
材と圧接する加圧ローラとを有する加熱装置において、 前記加熱部材が請求項１〜７のいずれか一項に記載の加
熱部材であることを特徴とする加熱装置。8. A heating member having a heating element substrate and a heating element provided on the heating element substrate, a heating element support for supporting the heating element, and a heating element support provided around the heating element support. In a heating device having a cylindrical film and a pressure roller that comes into pressure contact with the heating member via the film, the heating member is the heating member according to any one of claims 1 to 7. A heating device characterized by.
と、該転写材上の画像を定着する定着手段とを有する画
像形成装置において、 前記定着手段は請求項８に記載の加熱装置であることを
特徴とする画像形成装置。9. An image forming apparatus comprising: an image forming means for forming an image on a transfer material; and a fixing means for fixing the image on the transfer material, wherein the fixing means is the heating device according to claim 8. An image forming apparatus characterized in that there is.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001184760A JP2003007435A (en) | 2001-06-19 | 2001-06-19 | Heating member, heating device and image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001184760A JP2003007435A (en) | 2001-06-19 | 2001-06-19 | Heating member, heating device and image forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003007435A true JP2003007435A (en) | 2003-01-10 |
Family
ID=19024468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001184760A Withdrawn JP2003007435A (en) | 2001-06-19 | 2001-06-19 | Heating member, heating device and image forming device |
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| Country | Link |
|---|---|
| JP (1) | JP2003007435A (en) |
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