JPH0389482A - Contact type heater - Google Patents
Contact type heaterInfo
- Publication number
- JPH0389482A JPH0389482A JP22566889A JP22566889A JPH0389482A JP H0389482 A JPH0389482 A JP H0389482A JP 22566889 A JP22566889 A JP 22566889A JP 22566889 A JP22566889 A JP 22566889A JP H0389482 A JPH0389482 A JP H0389482A
- Authority
- JP
- Japan
- Prior art keywords
- overcoat layer
- heat
- temperature
- far
- far infrared
- 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.)
- Pending
Links
- 230000005855 radiation Effects 0.000 claims abstract description 21
- 238000005485 electric heating Methods 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 17
- 239000011521 glass Substances 0.000 abstract description 12
- 238000002844 melting Methods 0.000 abstract description 5
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 238000012546 transfer Methods 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910001252 Pd alloy Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910001316 Ag alloy Inorganic materials 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 230000005457 Black-body radiation Effects 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000005355 lead glass Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- SWELZOZIOHGSPA-UHFFFAOYSA-N palladium silver Chemical compound [Pd].[Ag] SWELZOZIOHGSPA-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Electronic Switches (AREA)
- Fixing For Electrophotography (AREA)
- Resistance Heating (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は複写紙などの加熱に用いられる接触形ヒータに
おいて、温度立上りおよび熱効率を改良しかつ安定した
定着が得られるようにしたものである。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a contact type heater used for heating copying paper, etc., which improves the temperature rise and thermal efficiency and provides stable fixing. This is what I did.
（従来の技術）
従来、たとえば電子式複写機やファクシミリにおいては
、アルミナセラミクスからなる細長い板状基体の表面に
その長手方向に沿って銀・パラジウム合金からなる細長
い膜状の電気発熱体を形成し、かつこの電気発熱体の表
面を透明ガラスからなるオーバーコート層で被覆してな
る接触形ヒータを内蔵し、被加熱物の一例である表面に
トナー像を静電的に付着してパターンを形威した複写紙
をヒータのオーバーコート層表面に順次接触してトナー
像を焼付けて定着している。(Prior Art) Conventionally, for example, in electronic copying machines and facsimile machines, an elongated film-like electric heating element made of a silver-palladium alloy is formed along the longitudinal direction on the surface of an elongated plate-like substrate made of alumina ceramics. , and has a built-in contact type heater in which the surface of this electric heating element is covered with an overcoat layer made of transparent glass, and a toner image is electrostatically attached to the surface of the object to be heated to form a pattern. The toner image is printed and fixed by sequentially contacting the heated copy paper with the surface of the overcoat layer of the heater.
このような接触形ヒータを得るには、基体表面に銀・パ
ラジウム合金粉末を粘着剤で混練してなるペーストをプ
リント印刷して焼付けて電気発熱体を形威し、ついでこ
の電気発熱体を含む基体面にガラスペーストを塗布して
焼付けてオーバーコート層を形成している。In order to obtain such a contact type heater, a paste made by kneading silver/palladium alloy powder with an adhesive is printed and baked on the surface of the substrate to form an electric heating element, and then a paste containing the electric heating element is formed. Glass paste is applied to the substrate surface and baked to form an overcoat layer.
（発明が解決しようとする課題）
上記従来の接触形ヒータは電気発熱体の表面をガラス質
オーバーコート層で被覆されているため、オーバーコー
ト層表面の温度上昇がやや遅く、しかも複写紙などの被
加熱物とオーバーコート層との接触圧力が低いので伝熱
が悪く、これを補うためヒーターの温度を高くしていた
。このように従来の接触形ヒータは動作が不安定で熱効
率が低い欠点があった。(Problem to be Solved by the Invention) In the conventional contact type heater described above, the surface of the electric heating element is covered with a glass overcoat layer, so the temperature rise on the surface of the overcoat layer is rather slow, and moreover, Since the contact pressure between the object to be heated and the overcoat layer is low, heat transfer is poor, and to compensate for this, the temperature of the heater is increased. As described above, conventional contact heaters have the drawbacks of unstable operation and low thermal efficiency.
そこで、本発明の課題は立上りが速く、かつ熱効率の高
い接触形ヒータを提供することである。Therefore, an object of the present invention is to provide a contact type heater that is quick to start up and has high thermal efficiency.
（課題を解決するための手段）
本発明は上述の接触形ヒータにおいて、オーバーコート
層の少なくとも接触部に遠赤外線放射性を付与したこと
により、被加熱物の接触加熱に際し、接触伝熱に加えて
遠赤外線も併用してトナー像を加熱し、立上りを速かに
するとともに熱効率を向上し、かつ安定した定着を得る
ものである。(Means for Solving the Problems) The present invention provides far-infrared radiation in the above-mentioned contact heater by imparting far-infrared radiation to at least the contact portion of the overcoat layer. Far infrared rays are also used to heat the toner image to speed up the rise, improve thermal efficiency, and obtain stable fixing.
（作 用）
伝熱の主体を従来の接触伝導に加えて遠赤外線照射によ
るふく射加熱も併用したので、被加熱物とオーバーコー
ト層との接触が多少不安定でも伝熱が良好で、ヒータ温
度を従来より多少下げても良好に加熱でき、し、たがっ
て、ヒータ電力が少なくても良く、また立上りも速かで
、安定した加熱が得られる。(Function) In addition to conventional contact conduction as the main source of heat transfer, radiation heating using far infrared rays is also used, so even if the contact between the object to be heated and the overcoat layer is somewhat unstable, heat transfer is good and the heater temperature remains constant. Good heating can be achieved even if the temperature is lowered to some extent than in the past, and therefore stable heating can be obtained with less heater power and a quick start-up.
（実施例） 本発明の詳細を下記の実施例によって説明する。(Example) The details of the invention are illustrated by the following examples.
実施例１
本実施例はオーバーコート層を伝熱性の良い遠赤外線放
射性物質で構成したもので、その詳細を第１図および第
２図に示す。図中（１）はアルミナセラミクスからなる
細長い板状基体、（２）はこの基体（１）のブレース層
（１１）上に形成された電気発熱体、（３）はこの電気
発熱体（２）を埋込んで基体（１）の表面に形成された
オーバコート層である。Example 1 In this example, the overcoat layer was made of a far-infrared emitting material with good heat conductivity, and its details are shown in FIGS. 1 and 2. In the figure, (1) is an elongated plate-shaped base made of alumina ceramics, (2) is an electric heating element formed on the brace layer (11) of this base (1), and (3) is this electric heating element (2). This is an overcoat layer formed on the surface of the base (1) by embedding.
上記電気発熱体（２）は銀・パラジウム合金ペーストを
ブレース層（１１）表面にプリント印刷して焼付けてな
るもので、基体（１）の長手方向に沿ってその中央部に
設けた細長い発熱部（２１）の両端に幅広い端子部（２
２）、 （２２）を形成しである。The electric heating element (2) is made by printing and baking a silver/palladium alloy paste on the surface of the brace layer (11), and has a long and narrow heating element in the center along the longitudinal direction of the base (1). (21) has a wide terminal section (2
2), (22) is formed.
上記オーバーコート層（３）はガラスペーストを塗布し
て焼付けてなるもので、発熱部（２１）の全長および端
子部（２２）、（２２）の一部を覆い、かつ発熱部（２
１）の両側の基体（１）表面を覆っである。The overcoat layer (3) is formed by coating and baking glass paste, and covers the entire length of the heat generating part (21) and a part of the terminal parts (22), (22), and covers the entire length of the heat generating part (21) and a part of the terminal parts (22),
1) covering the surface of the substrate (1) on both sides.
本実施例１の特徴はオーバーコート層（３）がたとえば
４価のマンガン（Ｈｎ ４ ＋ ）を含む低融点ガラス
からなることで、黒褐色を呈し、波長２〜７μｍ以上の
波長域に高い放射率（同温度の黒体放射量との比）を有
する。The feature of Example 1 is that the overcoat layer (3) is made of low melting point glass containing, for example, tetravalent manganese (Hn 4 + ), exhibits a dark brown color, and has a high emissivity in the wavelength range of 2 to 7 μm or more. (ratio to the amount of blackbody radiation at the same temperature).
つぎに、この実施例１のヒータの作用を説明する。両端
子部（２２）、（２２）間に動作電流を通流すると、発
熱部（２１）がジュール熱を発生する。そして、この熱
は基体（１）およびオーバーコート層（３）に伝達され
その温度が上昇する。そして、オーバーコート層（３）
は温度が上昇するに従って遠赤外線放射量が急速に増大
し、かつ放射遠赤外線のピーク波長域が次第に短波長側
に移行する。そして、発生する熱量と放熱量とが同じに
なったところで温度上昇が停止し、かつ遠赤外線放射量
が一定になる。この飽和した状態において放熱量の約１
０％はオーバーコート層（３）から放射される遠赤外線
となっている。そこで、被加熱物の一例であるトナー像
を静電的に付着した複写紙を端縁から順次オーバーコー
ト層（３）表面に接触させると、複写紙はオーバーコー
ト層（３）からの遠赤外線照射と伝導とによって加熱さ
れる。しかして、本実施例において、上述のとおり熱伝
導加熱とともに遠赤外線照射量も大きいので熱伝達が良
好であるばかりでなく複写紙とオーバーコート層（３）
との接触状態が多少変化しても複写紙の加熱状態はほと
んど変化せず、良好に加熱され定着される。しかも、遠
赤外線放射効率が高いので、熱伝達の立上り。Next, the operation of the heater of this first embodiment will be explained. When an operating current is passed between both terminal parts (22), (22), the heat generating part (21) generates Joule heat. This heat is then transferred to the base (1) and the overcoat layer (3), increasing their temperature. And overcoat layer (3)
As the temperature rises, the amount of far-infrared radiation increases rapidly, and the peak wavelength range of the far-infrared radiation gradually shifts to the shorter wavelength side. Then, when the amount of heat generated and the amount of heat radiation become the same, the temperature rise stops and the amount of far-infrared radiation becomes constant. Approximately 1 of the amount of heat dissipated in this saturated state
0% is far infrared rays emitted from the overcoat layer (3). Therefore, when a copy paper with a toner image electrostatically attached thereto, which is an example of an object to be heated, is brought into contact with the surface of the overcoat layer (3) sequentially starting from the edge, the copy paper is exposed to far infrared rays from the overcoat layer (3). Heated by radiation and conduction. In this example, as mentioned above, in addition to heat conduction heating, the amount of far infrared rays is also large, so not only is heat transfer good, but also the copy paper and overcoat layer (3)
Even if the contact state with the copy paper changes slightly, the heating state of the copy paper hardly changes, and the copy paper is heated and fixed well. Moreover, the far-infrared radiation efficiency is high, so heat transfer increases.
すなわち通電開始から良好に定着できるようになるまで
の時間が短かく、比較的低い温度でも良好に加熱でき、
かつ熱効率も良好である。In other words, the time from the start of energization until good fixing is achieved is short, and the film can be heated well even at relatively low temperatures.
It also has good thermal efficiency.
つぎに、上記実施例接触形ヒータの熱特性を調査し、こ
れを従来のオーバーコート層が遠赤外線放射性に乏しい
透明低融点ガラスからなるヒータの熱特性と比較した。Next, the thermal characteristics of the contact type heater of the above example were investigated and compared with the thermal characteristics of a conventional heater whose overcoat layer is made of transparent low-melting glass that is poor in far-infrared radiation.
試験は両者とも同じ電流を通流し、オーバーコート層（
３）の表面に接触させた複写紙の時間的温度変化を測定
した。この結果を第３図に示す。図は横軸に通電開始か
らの時間経過を秒の単位でとり、縦軸に複写紙の温度を
相対値でとったもので、実線は本第１実施例、破線は従
来例の温度特性をそれぞれに示す。The same current was passed through both tests, and the overcoat layer (
3) Temporal temperature changes of the copy paper brought into contact with the surface were measured. The results are shown in FIG. In the figure, the horizontal axis shows the time elapsed from the start of energization in seconds, and the vertical axis shows the temperature of the copy paper as a relative value.The solid line shows the temperature characteristics of the first embodiment, and the broken line shows the temperature characteristics of the conventional example. Each is shown below.
この第３図から明らかなとおり、本実施例１のものは通
電開始後時間が経過するに従ってオーバーコート層（３
）の温度が上昇し、これに従って遠赤外線の放射量が幾
何級数的に増大し、この結果、複写紙温度が始めはやや
緩かに上昇し、遠赤外線の放射量が増大するに従って複
写紙温度も幾何級数的に上昇する。そして、有効伝達熱
量と損失熱量との合計が発生熱量に接近するに従ってオ
ーバーコート層（３）の温度および遠赤外線放射量の上
昇速度は次第に緩くなり、やがて平常状態になり、これ
に従って複写紙の温度上昇も緩くなり定着に好適な温度
に達しる。これに比較して従来のヒータは遠赤外線の放
射が少ないため、オーバーコート層の温度上昇は実施例
のものより急速であるが、複写紙の温度上昇はたんに接
触による熱伝導によるものだけで、合計した熱伝達が悪
く、複写紙の温度上昇速度が遅く１．平常状態に達した
のちも、オーバーコート層の温度が本実施例１のヒータ
のそれよりも高いにかかわらず複写紙の温度は本実施例
１の接触形ヒータによる場合よりも低い。したがって、
本実施例１の接触形ヒータを用いるときは従来のものよ
りも低電流で動作させて複写紙の加熱温度が高過ぎない
ようにすることが必要であるが、この場合も従来のもの
よりも速かに正常温度に達しる。このように、本実施例
１の接触形ヒータは動作の立上りが速く、かつ高効率で
、加熱が安定している。As is clear from FIG. 3, in Example 1, the overcoat layer (3
) increases, and the amount of far-infrared radiation increases exponentially. As a result, the copy paper temperature rises somewhat slowly at first, and as the amount of far-infrared radiation increases, the copy paper temperature increases. also increases exponentially. As the sum of the effective heat transfer amount and the heat loss amount approaches the generated heat amount, the rate of increase in the temperature of the overcoat layer (3) and the amount of far-infrared radiation gradually becomes slower, and eventually reaches a normal state, and accordingly, the copy paper The temperature rise becomes slower and reaches a temperature suitable for fixing. In comparison, conventional heaters emit less far-infrared rays, so the temperature of the overcoat layer rises more rapidly than that of the example, but the temperature rise of the copy paper is simply due to heat conduction through contact. , the total heat transfer is poor and the temperature rise rate of the copy paper is slow.1. Even after the normal state is reached, the temperature of the copy paper is lower than with the contact type heater of the first embodiment, even though the temperature of the overcoat layer is higher than that of the heater of the first embodiment. therefore,
When using the contact type heater of Example 1, it is necessary to operate it at a lower current than the conventional one so that the heating temperature of the copy paper does not become too high. Reach normal temperature quickly. As described above, the contact type heater of the first embodiment has a quick start-up, high efficiency, and stable heating.
なお、上記実施例１の接触形ヒータはオーバーコート層
をマンガンを含む低融点ガラスで構成したが、本実施例
はオーバーコート層の構成材料を他の遠赤外線放射性ガ
ラス、たとえばＦｅ、 （Ｓｉｎ２） 、、２Ｍｇ０・
２ＡＲｚＯａ・５ＳｉＯ，、Ｌｉ、Ｏ，・ＡＱ２０．・
４ＳｉＯ，，５ｂ２０５−５ｉｏ２などのガラスでもよ
い。Note that in the contact type heater of Example 1, the overcoat layer was made of low-melting glass containing manganese, but in this example, the overcoat layer was made of other far-infrared emissive glass, such as Fe, (Sin2). ,,2Mg0・
2ARzOa・5SiO,, Li, O,・AQ20.・
Glass such as 4SiO, 5b205-5io2 may also be used.
さらに、本実施例１の変形例として、第１図におけるオ
ーバーコート層（３）を遠赤外線放射性セラミクスなど
で構成してもよく、たとえばＺｒＯ２、ＭｇＯ５Ｍｎ０
．、ＡＭ、０３４ｉ０．などの少なくとも１種を配合し
たセラミクスなどでもよく、これらはいずれも波長２〜
７μｍ以上のピーク波長域を有し、かつ伝熱も比較的良
好である。そして、オーバーコート層（３）は薄い方が
熱伝導が良いので好ましいこともちろんである。Furthermore, as a modification of the first embodiment, the overcoat layer (3) in FIG.
．． , AM, 034i0. It is also possible to use ceramics containing at least one kind of
It has a peak wavelength range of 7 μm or more, and has relatively good heat transfer. Of course, the thinner the overcoat layer (3) is, the better the heat conduction is, so it is preferable.
さらに、本実施例１のオーバーコート（３）はさらに他
の遠赤外線放射物質でもよく、要はオーバーコートＭ
（３）として良好な伝熱性と強じん性と、平滑性などを
有し、遠赤外線の放射率が高いものであればよい。Furthermore, the overcoat (3) of Example 1 may be made of other far-infrared emitting materials, and in short, the overcoat M
(3) Any material may be used as long as it has good heat conductivity, toughness, smoothness, etc., and has a high far-infrared emissivity.
実施例２
本実施例（２）は第４図に示すとおり、オーバーコート
層（３）を通常の遠赤外線放射性に乏しい透明な低融点
ガラスで構成し、かつその表面を遠赤外線放射物層（４
）で被覆したもので、その他同−部分には同一符号を付
して説明を略す。Example 2 In this example (2), as shown in FIG. 4, the overcoat layer (3) is made of ordinary transparent low-melting glass that is poor in far-infrared radiation, and its surface is covered with a far-infrared emitter layer ( 4
), and other identical parts are given the same reference numerals and explanations are omitted.
上記遠赤外線放射物層、（４）はたとえば上述のＦｅ、
０３、ＡＱ２０．、ＭｎＱ、、 ＺｒＯ，、ＭｇＯなど
の少なくとも１種の粉末を小量のガラス質結着剤でオー
バーコート層（３）表面に焼付けたもので、充分な付着
度と適度の表面平滑性とを有し、熱伝導も良く。The far-infrared emitter layer (4) is, for example, the above-mentioned Fe,
03, AQ20. , MnQ, , ZrO, , MgO, etc., are baked onto the surface of the overcoat layer (3) with a small amount of a glassy binder to ensure sufficient adhesion and appropriate surface smoothness. It also has good heat conduction.
かつ遠赤外線域に高い放射率を有する。It also has a high emissivity in the far infrared region.
この実施例２の接触形ヒータもオーバーコート層（３）
の表面に遠赤外線放射物層（４）を設けたので、通電加
熱により遠赤外線を良く放射し、と述の実施例１の接触
形ヒータと同様な作用効果がある。The contact type heater of Example 2 also has an overcoat layer (3).
Since the far-infrared ray emitter layer (4) is provided on the surface of the heater, far-infrared rays can be well radiated by heating with electricity, and there is an effect similar to that of the contact type heater of Example 1 described above.
なお、実施例２の変形として遠赤外線放射物層（４）の
構成材料として好ましいものをあげれば。In addition, as a modification of Example 2, preferable materials for forming the far-infrared emitter layer (4) are listed below.
Ａｌｌ、０３、ＭｎＯ，、ＺｒＯ２、ＭｇＯ，，５ｂ２
０ｓ−８ｎＯ２、Ａｎ、Ｏ，・Ｔｉｅ。All, 03, MnO,, ZrO2, MgO,, 5b2
0s-8nO2, An, O, ·Tie.
などを含むセラミクスなどもよい。Ceramics containing such materials are also good.
実施例３
本実施例はオーバーコート層を加工して遠赤外線放射性
を付与したもので第１図および第２図を援用して説明す
る。このものはオーバーコート層（３）を鉛ガラスで構
成し、そののちオーバーコート層（３）の表面を還元焔
で加熱して鉛の低級酸化物を析出させたものである。Example 3 In this example, the overcoat layer was processed to impart far-infrared radiation, and will be described with reference to FIGS. 1 and 2. In this product, the overcoat layer (3) is made of lead glass, and then the surface of the overcoat layer (3) is heated with a reducing flame to precipitate lower oxides of lead.
このものはオーバーコート層（３）表面の鉛の低級酸化
物の遠赤外線放射率が高いので、上述の実施例１および
２と同様な作用効果がある。Since this material has a high far-infrared emissivity of the lower oxide of lead on the surface of the overcoat layer (3), it has the same effect as Examples 1 and 2 described above.
なお、実施例３の変形としてオーバーコート層（３）の
構成材料の例とその処理方法を例示すればカンチモン含
有ガラスでオーバーコート層（３）を形成して、その表
面を還元焔で加熱し還元してもよい。In addition, as a modification of Example 3, an example of the constituent material of the overcoat layer (3) and its treatment method is as follows: The overcoat layer (3) is formed of cantimony-containing glass, and its surface is heated with a reducing flame. It may be returned.
なお、上述の各実施例はオーバーコート層（３）に遠赤
外線放射性を付与するための代表的な手段を例示したが
、本発明はこれに限らず、要はオーバーコート層本来の
機能を失なわずに、しかも遠赤外線放射性を付与してあ
ればよい、そうして、電気発熱体の細部構造は問わない
、また、オーバーコート層は最小限電気発熱体の発熱部
を被覆していればよい。さらに、本発明は最小限オーバ
ーコート層の複写紙などの被加熱部との接触部に遠赤外
線放射性を付与すればよい、また、被加熱物は複写紙に
限らない６
〔発明の効果〕
このように、本発明の接触形ヒータは電気発熱体を被覆
したオーバーコート層の少なくとも被加熱物との接触部
に遠赤外線放射性を付与したので１通電加熱によりオー
バーコート層からの熱伝導に加えて効果的に遠赤外線を
放射し、このため、複写紙の定着に際し複写紙とオーバ
ーコート層との接触による伝導が多少不安定でも遠赤外
線加熱を併用して被加熱物が加熱されるので加熱の立上
りが速く、熱効率が良く、しかも加熱が安定しているの
で均一な加熱たとえば定着が安定して得られる。In addition, although each of the above-mentioned examples illustrated typical means for imparting far-infrared radiation to the overcoat layer (3), the present invention is not limited to this, and the point is that the overcoat layer (3) may lose its original function. It is sufficient that the overcoat layer covers at least the heating part of the electric heating element, and the detailed structure of the electric heating element does not matter. good. Furthermore, in the present invention, far-infrared radiation can be imparted to at least the contact portion of the overcoat layer with a heated portion such as copy paper, and the heated material is not limited to copy paper.6 [Effects of the Invention] As described above, the contact type heater of the present invention imparts far-infrared radiation to at least the contact portion of the overcoat layer covering the electric heating element with the object to be heated, so that in addition to the heat conduction from the overcoat layer by heating with electricity, Effectively emits far-infrared rays, and therefore, even if the conduction due to contact between the copy paper and the overcoat layer is somewhat unstable when fixing the copy paper, the object to be heated is heated using far-infrared heating in conjunction with the heating process. Since the rise time is fast, the thermal efficiency is good, and the heating is stable, uniform heating, such as fixing, can be stably obtained.
第１図は本発明の接触形ヒータの第１の実施例の平面図
、第２図は同じく断面図、第３図は本発明の効果を示す
グラフ、第４図は第２の実施例の断面図である。FIG. 1 is a plan view of the first embodiment of the contact type heater of the present invention, FIG. 2 is a sectional view of the same, FIG. 3 is a graph showing the effects of the present invention, and FIG. FIG.
Claims (1)
バーコート層で被覆してなり、上記オーバーコート層を
被加熱物と接触させて加熱する接触形ヒータにおいて、
上記オーバーコート層の少なくとも上記被加熱物との接
触部に遠赤外線放射性を付与したことを特徴とする接触
形ヒータ。A contact type heater in which the surface of an electric heating element formed on the surface of a heat-resistant substrate is coated with an overcoat layer, and the overcoat layer is brought into contact with an object to be heated to heat it,
A contact type heater characterized in that far-infrared radiation is imparted to at least a portion of the overcoat layer that comes into contact with the object to be heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22566889A JPH0389482A (en) | 1989-08-31 | 1989-08-31 | Contact type heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22566889A JPH0389482A (en) | 1989-08-31 | 1989-08-31 | Contact type heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0389482A true JPH0389482A (en) | 1991-04-15 |
Family
ID=16832912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22566889A Pending JPH0389482A (en) | 1989-08-31 | 1989-08-31 | Contact type heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0389482A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0838734A2 (en) * | 1996-10-28 | 1998-04-29 | Sumitomo Electric Industries, Ltd. | Heat fixing device |
| US6078027A (en) * | 1997-09-17 | 2000-06-20 | Sumitomo Electric Industries, Ltd. | Ceramic fixing heater containing silicon nitride |
| JP2016096037A (en) * | 2014-11-14 | 2016-05-26 | 株式会社ヒットデバイス | Heating head, heater using the same, and heating method |
| JP2017026876A (en) * | 2015-07-24 | 2017-02-02 | 富士ゼロックス株式会社 | Fixing device and image forming apparatus |
| CN108621594A (en) * | 2017-03-20 | 2018-10-09 | 深圳市博思得科技发展有限公司 | Thermal printing head |
-
1989
- 1989-08-31 JP JP22566889A patent/JPH0389482A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0838734A2 (en) * | 1996-10-28 | 1998-04-29 | Sumitomo Electric Industries, Ltd. | Heat fixing device |
| EP0838734A3 (en) * | 1996-10-28 | 1999-01-27 | Sumitomo Electric Industries, Ltd. | Heat fixing device |
| US6049064A (en) * | 1996-10-28 | 2000-04-11 | Sumitomo Electric Industries, Ltd. | Heat fixing device for fixing a toner image |
| KR100309366B1 (en) * | 1996-10-28 | 2001-12-17 | 오카야마 노리오 | Heating Fixing Device |
| US6078027A (en) * | 1997-09-17 | 2000-06-20 | Sumitomo Electric Industries, Ltd. | Ceramic fixing heater containing silicon nitride |
| JP2016096037A (en) * | 2014-11-14 | 2016-05-26 | 株式会社ヒットデバイス | Heating head, heater using the same, and heating method |
| JP2017026876A (en) * | 2015-07-24 | 2017-02-02 | 富士ゼロックス株式会社 | Fixing device and image forming apparatus |
| CN108621594A (en) * | 2017-03-20 | 2018-10-09 | 深圳市博思得科技发展有限公司 | Thermal printing head |
| CN108621594B (en) * | 2017-03-20 | 2019-07-23 | 深圳市博思得科技发展有限公司 | Thermal printing head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6530088B2 (en) | Heater, fixing device including the same, image forming apparatus and heating device | |
| JPH0389482A (en) | Contact type heater | |
| JP2002214951A (en) | Heat generating resistor sheet for fixing and fixing device | |
| JP3245337B2 (en) | Heating heater, fixing heat roller, and fixing device | |
| JP2001242726A (en) | Fixing heater and image forming device | |
| JPS63170877A (en) | Temperature self-control far-infrared heater | |
| JP3482000B2 (en) | Heater and fixing device and fixing device built-in device | |
| JPS62195882A (en) | Far-infrared heater | |
| KR950009661Y1 (en) | Infrared rays seramic eouission | |
| JP3852977B2 (en) | Fixing heater, fixing device, and image forming apparatus | |
| JPS62291881A (en) | Infrared radiating unit | |
| JPS62215982A (en) | Fixing device | |
| JPS62264588A (en) | Infrared heater | |
| JPS6164090A (en) | Far infrared radiating device | |
| JPH05299155A (en) | Flame spraying heating element generating far infrared radiation | |
| JP2601657B2 (en) | Ceramic heater | |
| KR200372467Y1 (en) | Film heating element having automatic temperature control function | |
| JPS62116164A (en) | Manufacture of thermal head | |
| JPH0743997Y2 (en) | High frequency heating device | |
| JPH0744036A (en) | Heater and fixing device | |
| JPS59203390A (en) | Heater | |
| JPH08227239A (en) | Thermal fixing device | |
| JP2000077168A (en) | Heating body, fixing device, and image forming device | |
| JPH0789512B2 (en) | Far infrared heater | |
| JPS59171981A (en) | Heat fixing device |