JPH0632276B2 - Heating body - Google Patents
Heating bodyInfo
- Publication number
- JPH0632276B2 JPH0632276B2 JP63215734A JP21573488A JPH0632276B2 JP H0632276 B2 JPH0632276 B2 JP H0632276B2 JP 63215734 A JP63215734 A JP 63215734A JP 21573488 A JP21573488 A JP 21573488A JP H0632276 B2 JPH0632276 B2 JP H0632276B2
- Authority
- JP
- Japan
- Prior art keywords
- heating element
- heated
- heat
- electric heating
- uniform
- 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.)
- Expired - Fee Related
Links
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OA機器たとえば複写機における定着部あるいは
ラミネート装置などに用いられる加熱体において、被加
熱物が一様に密着して一様に加熱されるようにしたもの
である。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial field of application) The present invention relates to a heating element used in an OA equipment such as a fixing unit in a copying machine or a laminating apparatus, in which an object to be heated adheres uniformly. It is designed to be heated uniformly.
（従来の技術） OA機器たとえば複写機の定着部においては熱と圧力とを
同時に加えるヒートローラ定着方式が多く採られてい
る。この方式は中空のローラの中心部に管形赤外線電球
や棒状ヒータを加熱体として配置したヒートローラを用
いたもので、上下一対のローラのうち少なくとも一方を
このヒートローラとして加圧される他方のローラとの間
に、未定着の複写紙を通すことによってトナー像を溶融
して定着するものである。(Prior Art) In a fixing portion of an OA device such as a copying machine, a heat roller fixing method in which heat and pressure are simultaneously applied is often adopted. This method uses a heat roller in which a tubular infrared light bulb or a rod-shaped heater is arranged as a heating element in the center of a hollow roller, and at least one of a pair of upper and lower rollers is pressed as the other heat roller. The toner image is fused and fixed by passing an unfixed copy paper between the roller and the roller.
このような定着方式は、ローラが一旦昇温した後はロー
ラ各部の表面温度はほぼ均一となり、良好な定着が行え
るという利点がある。しかし、ローラの熱容量が大きい
ところからローラの昇温には時間がかかり、複写開始毎
に熱源を始動させるのでは直ちに定着できず、加熱体に
は常時通電して予熱しておく必要がある。Such a fixing method has an advantage that the surface temperature of each part of the roller becomes substantially uniform after the temperature of the roller once rises, and good fixing can be performed. However, since the heat capacity of the roller is large, it takes time to raise the temperature of the roller, and fixing the heat source every time the copying is started cannot fix the toner immediately. Therefore, it is necessary to always energize the heating element to preheat it.
また、上記加熱体としての管形赤外線電球は電球軸の中
央部が最も高温となるところから、電球軸に沿いほぼ均
一な温度放射をさせるためにはヒータとなるフィラメン
トコイル部を分散させる必要がありその設計が面倒であ
り、長尺なフィラメントコイル部の支持手段などその製
造にも手数がかかり高価となっていた。また、棒状ヒー
タは外被の熱容量が大きく昇温に時間がかかり効率がよ
くない。Further, since the central portion of the bulb axis of the tubular infrared light bulb as the heating body has the highest temperature, it is necessary to disperse the filament coil portion as a heater in order to radiate a substantially uniform temperature along the bulb axis. However, the design thereof is troublesome, and the manufacturing of the supporting means for the long filament coil portion is troublesome and expensive. Further, the rod-shaped heater has a large heat capacity of the outer cover, and it takes time to raise the temperature, which is not efficient.
このようにヒートローラ定着方式は、加熱体からローラ
を介し間接的に複写紙を加熱するもので始動に時間がか
かり、予熱を必要として電力の消費量も多いなどのこと
がある。As described above, the heat roller fixing method indirectly heats the copy paper from the heating body via the roller, and thus it takes time to start, preheating is required, and power consumption is large in some cases.
また、このような間接的な加熱に代えてほぼ直接にヒー
タが紙面を加熱させることがパーソナルコンピュータの
印字部などに用いられる。これは印字部にサーマルヘッ
ドと称される加熱体が装着され、その表面に接触しなが
ら通過する感熱紙を加熱して印字するものである。この
ようなサーマルヘッドは細長い基体表面にこの基体に沿
って分割された電気抵抗膜を細長く配設してこれをガラ
ス質保護膜で覆い、この電気抵抗膜の軸方向の両縁部に
多数の端子部をくしの歯状に密配設し、これら端子部に
それぞれ配線がろう付けなどの手段で取付けられてい
る。そして、上記対をなす端子部間に加熱電流をしゅん
間的に通流して局部的に発熱させ、感熱紙のうちこの発
熱した部位に接触した部分が感熱してドットを形成する
ようになっている。そして、総ての対をなす端子部間に
コンピュータ制御された加熱電流が通流することによ
り、感熱紙に形成された個々のドットが総合されてパタ
ーンを形成するようになっている。Further, instead of such indirect heating, it is used in a printing section of a personal computer that the heater heats the paper surface almost directly. In this system, a heating unit called a thermal head is attached to the printing unit, and the thermal paper that passes while contacting the surface of the heating unit is heated for printing. In such a thermal head, an electric resistance film divided along the base is slenderly arranged on the surface of an elongated base and covered with a vitreous protective film, and a large number of edges are formed on both edges in the axial direction of the electric resistance film. The terminals are densely arranged in the shape of comb teeth, and wires are attached to these terminals by means such as brazing. Then, a heating current is intermittently passed between the paired terminal portions to locally generate heat, and the portion of the thermal paper that is in contact with the heated portion is heat-sensitive to form dots. There is. A computer-controlled heating current is passed between all the terminal portions forming a pair, so that the individual dots formed on the thermal paper are combined to form a pattern.
そして、このようにほぼ直接的に効率よく紙面を加熱す
ることのできるサーマルヘッドを複写機の定着部に用い
ることも検討したが、複写機は通過するトナーが付着し
た複写機の全面を一様に加熱する必要があるのに対し
て、このヘッドは電気抵抗膜が分割されているとともに
各電気抵抗膜の端子部への配線が必要で、この配線も複
写紙の移動面上にあり邪魔になる。We also considered using a thermal head that can heat the paper surface almost directly and efficiently in this way in the fixing section of the copying machine. However, the copying machine uniformly spreads the entire surface of the copying machine to which the toner passing therethrough adheres. In contrast to this, it is necessary to heat the head to a separate area, and this head requires a separate electric resistance film and wiring to the terminals of each electric resistance film.This wiring is also on the moving surface of the copy paper, which is an obstacle. Become.
また、このヘッドは電気抵抗膜が分割されている関係か
ら抵抗膜形成部は非抵抗膜形成部に比べ高く凹凸があり
複写紙が移動する表面が平面ではない。このため、電気
抵抗膜間を通過した部分のトナーが溶着できないとか、
溶着できたとしても電気抵抗膜部と対面した部分との複
写むらが発生するなどの問題がある。Further, in this head, because the electric resistance film is divided, the resistance film forming portion is higher than the non-resistance film forming portion, and the surface on which the copy paper is moved is not flat. For this reason, the toner in the portion passing between the electric resistance films cannot be welded,
Even if they can be welded, there is a problem that uneven copying occurs between the electric resistance film portion and the portion facing the electric resistance film portion.
（発明が解決しようとする課題） この発明が解決しようとする問題点は、従来の管形赤外
線電球などを用いる加熱体では複写紙などを直接に加熱
できないこと、また、直接に加熱できるサーマルヘッド
では長手方向の表面に凹凸があるとともに発熱体軸にそ
って一様な温度放射が得られない点である。(Problems to be Solved by the Invention) A problem to be solved by the present invention is that a conventional heating element using a tubular infrared light bulb or the like cannot directly heat copy paper or the like, and a thermal head that can directly heat the same. The point is that the surface in the longitudinal direction has irregularities and uniform temperature radiation cannot be obtained along the axis of the heating element.
本発明は被加熱体を直接に加熱するとともに加熱体軸に
そって均一の温度放射が得られることのできる加熱体を
提供することを目的とする。It is an object of the present invention to provide a heating body capable of directly heating an object to be heated and obtaining uniform temperature radiation along the axis of the heating body.
（課題を解決するための手段） 本発明は基体に設けた細長い電気発熱体の両端に端子部
を設けてなる加熱体において、電気発熱体の部分が他の
部分に比べて高く形成され、しかもその高さが一様でか
つ連続していることを特徴としている。(Means for Solving the Problem) In the present invention, in a heating element in which terminals are provided at both ends of an elongated electric heating element provided on a substrate, the electric heating element is formed higher than other portions, and The feature is that the height is uniform and continuous.
（作 用） 電気発熱体の部分を高く構成すれば、この部分に被加熱
体が良く接触する。しかも、その高さが一様でかつ連続
しているので、被加熱体を直接に加熱することができ、
また被加熱体が電気発熱体の部分全長にわたり、一様に
接触し、一様に加熱される。(Operation) If the part of the electric heating element is made high, the part to be heated makes good contact with this part. Moreover, since the height is uniform and continuous, the object to be heated can be directly heated,
Further, the object to be heated is in uniform contact with the entire length of the electric heating element and is heated uniformly.
（実施例） 本発明の詳細を図示の実施例によって説明する。(1)は
アルミナセラミックスからなり、長さ300mm、幅８mm、
厚さ１mmの細長い平板状基板、(2) はこの基板(1)の上
面に形成されたグレース層、(3)はこのグルース層表面
に形成された細長い帯状の電気発熱体、(4)はこの電気
発熱体(3)の表面およびグレース層(2) の表面を被覆し
たガラス質保護層である。(Examples) Details of the present invention will be described with reference to illustrated examples. (1) is made of alumina ceramics, length 300mm, width 8mm,
An elongated flat plate substrate with a thickness of 1 mm, (2) is a grace layer formed on the upper surface of the substrate (1), (3) is an elongated strip-shaped electric heating element formed on the surface of the glue layer, and (4) is It is a vitreous protective layer that covers the surface of the electric heating element (3) and the surface of the grace layer (2).
上記グレース層(2)は基体(1)の軸方向断面を中央部が最
も高い円弧状に形成し、その高さは基体(1)表面から約1
00μで、この断面形状と最高点の高さは基体(1) の全長
にわたって一様でかつ連続して形成されている。The grace layer (2) is formed such that the axial cross section of the base body (1) has an arc shape with the highest central portion, and its height is about 1 from the surface of the base body (1).
At 00μ, the cross-sectional shape and the height of the highest point are formed uniformly and continuously over the entire length of the substrate (1).
上記電気発熱体(3) は銀・パラジウム合金をグレース層
(2) の表面に印刷して焼付けてなるもので、幅約１．５
〜２．５mmで厚さ約10μの帯状をなし、長さ約270mmの
発熱部(31)の両端に幅約６〜７mm、長さ約15mmの端子部
(32),(32)を同材料で一体に形成し、かつ端子部(32),(3
2)の端末部には電線接続用の銀被覆層(33),(33)を形成
してある。そして、発熱部(31) はグレース層(2)の幅方
向の中央部すなわち最も高い部位に設けられている。The electric heating element (3) is made of silver-palladium alloy and has a grace layer.
Printed on the surface of (2) and baked, width of about 1.5
A strip of ~ 2.5 mm thick with a thickness of about 10 µ, and a terminal part with a width of about 6 to 7 mm and a length of about 15 mm at both ends of the heat generating part (31) with a length of about 270 mm.
(32), (32) are integrally formed of the same material, and the terminal parts (32), (3
Silver coating layers (33), (33) for connecting electric wires are formed on the terminal portion of 2). The heat generating portion (31) is provided at the center portion in the width direction of the grace layer (2), that is, at the highest portion.
上記保護層(4)はグレース層(2)上に電気発熱体(3)を形
成したのち、電気発熱体(3)および露出したグレース層
(2)表面にたとえばフリットガラスを被覆して焼付けて
なるもので、銀被覆層(33),(33)を除く全表面を約10μ
の厚さで均一被覆している。なお、第３図は発熱部(31)
の厚さを誇張して記載してある。この結果、保護層(4)
のうち発熱体(3) を被覆した部分が他の部分より高く形
成され、しかもその高さは一様でかつ連続している。さ
らに、この保護層(4) の表面は幅方向にゆるやかな円弧
状をなしており、かつ平滑で突角なども存在しない。The protective layer (4) is formed by forming the electric heating element (3) on the grace layer (2), and then the electric heating element (3) and the exposed grace layer.
(2) The surface is, for example, coated with frit glass and baked, and the entire surface excluding the silver coating layers (33) and (33) is about 10 μm.
It has a uniform thickness. In addition, FIG. 3 shows a heating part (31).
Is exaggerated and described. As a result, the protective layer (4)
The part covered with the heating element (3) is formed higher than the other parts, and the height is uniform and continuous. Further, the surface of the protective layer (4) has a gentle arc shape in the width direction, is smooth, and has no salient angle.
つぎに、この加熱体の作用を説明する。この加熱体をOA
機器たとえば複写機に組込んで所要の配線を施して通電
すれば、電気発熱体(3) の発熱部(31)が発熱し、これに
よって保護層の(4) の発熱部(31)上の部分が加熱され
る。そこで、複写紙を加熱体(3)表面に接触させながら
加熱体(3)の幅方向に進行させると、複写紙の接触部分
が加熱されるので、複写紙に付着したトナーが溶着して
所要のパターンを形成する。Next, the operation of this heating element will be described. This heating element is OA
When the device is installed in a copying machine, for example, and the required wiring is applied and the power is turned on, the heat-generating part (31) of the electric heating element (3) generates heat, which causes the heat-generating part (31) of the protective layer (4). The part is heated. Therefore, when the copy paper is moved in the width direction of the heating body (3) while being in contact with the surface of the heating body (3), the contact portion of the copying paper is heated, and the toner adhering to the copy paper is fused and required. Pattern is formed.
このとき、保護層(4) の表面は平滑でしかも複写紙の進
行方向にわん曲しているので、複写紙が浮上することが
ない。また、保護層(4) の表面のうち、発熱部(31)を被
覆する部分が他の部分より高く形成され、かつその高さ
が一様で連続しているので、複写紙が発熱部(31)を覆う
部分の全長にわたり、一様に密着し、一様に加熱され
る。したがって、印字パターンが鮮明で、局部的なかす
れや不鮮明がほとんど発生しない。さらに、この加熱体
は表面が平滑であるので、複写紙の通過が円滑で、引っ
かかることがない。At this time, since the surface of the protective layer (4) is smooth and curved in the traveling direction of the copy paper, the copy paper does not float up. In addition, since the portion of the surface of the protective layer (4) that covers the heat generating portion (31) is formed higher than the other portions and the height is uniform and continuous, the copy paper is not 31) Uniformly adheres to and is heated uniformly over the entire length of the part that covers. Therefore, the print pattern is clear, and local blurring or blurring hardly occurs. Further, since the surface of the heating body is smooth, the copy paper can smoothly pass therethrough without being caught.
ちなみに、この加熱体を用い、簡易的な送り装置によっ
て加熱体とプラテンローラとの間に紙片を通し、通り具
合を調査した。また、比較のため、上述の実施例と同形
同寸法の基本にわん曲も傾斜もない平坦なグレース層を
設けて実施例と同様な電気抵抗発熱体およびガラス質保
護層を設けてなる比較例を作製し、同様な試験を行なっ
た。この結果を次表に示す。By the way, using this heating element, a paper piece was passed between the heating element and the platen roller by a simple feeding device, and the passing condition was investigated. Further, for comparison, a comparison is made by providing the same electric resistance heating element and glassy protective layer as those of the embodiment by providing a flat grace layer which is basically the same in shape and size as the above-mentioned embodiment and has no bending or inclination. An example was prepared and a similar test was conducted. The results are shown in the table below.
この試験結果から本実施例のものが格段に優れているこ
とがわかる。 From this test result, it can be seen that the material of this example is remarkably excellent.
つぎに他の実施例を第４図に示す。このものはグレース
層を欠き、たとえばポーセレンセラミックスのように比
較的熱伝導の少ない材料からなる細長い平板状基体(1)
の表面中央に長手方向に沿って細長い電気発熱体(3) を
設け、この電気発熱体(3)および基体(1)表面を被覆する
ガラス質保護層(4)を設け、この保護層(4)を電気発熱体
(3) 部分が最も高い断面円弧状に形成し、かつその高さ
を長手方向に一様にかつ連続させてある。この加熱体も
前述の実施例と同様複写紙が浮上ることなく、良好な接
触したまま通過し、接触が均一で印字の局部的かすれな
どが発生しない。また、複写紙が加熱体に引っかかるこ
とがない。Next, another embodiment is shown in FIG. This product lacks a grace layer and is made of a material with relatively low thermal conductivity such as porcelain ceramics.
An elongated electric heating element (3) is provided along the longitudinal direction at the center of the surface, and a vitreous protective layer (4) covering the electric heating element (3) and the surface of the substrate (1) is provided. ) The electric heating element
(3) The portion is formed to have the highest circular arc shape in cross section, and its height is made uniform and continuous in the longitudinal direction. Similar to the above-described embodiment, the copy sheet does not float up in this heating body, passes through with good contact, the contact is uniform, and local blurring of printing does not occur. Further, the copy paper is not caught by the heating body.
なお、前述の実施例においては、電気発熱体を基体また
はグレース層の幅方向の中央部に設けたが、本発明はこ
れに限らず、たとえば、基体またはグレース層の幅方向
の一側または両側に設けてもよく、この場合も被覆した
保護層の電気発熱体の部分を他の部分より高く形成し、
かつその高さを一様にして連続させれば上述の両実施例
と同様な効果がある。また、上述の各実施例はグレース
層または保護層を断面円弧状に形成して電気発熱体の部
分を高く形成したが、本発明においては断面形状を台形
または方形の階段状にしてもよい。さらに、本発明にお
いては基体をたとえば断面三角形に形成してその頂点に
電気発熱体を設けてもよく、保護層も不可欠でない。さ
らに、電気発熱体の構成材料はどのようなものでもよ
い。さらに、加熱体の用途や被加熱体に制限がない。Although the electric heating element is provided in the central portion in the width direction of the base body or the grace layer in the above-described embodiments, the present invention is not limited to this. For example, one side or both sides of the base body or the grace layer in the width direction. May also be provided in this case, also in this case, the portion of the electric heating element of the protective layer covered is formed higher than other portions,
Further, if the heights are made uniform and continuous, the same effect as those of the above-described embodiments can be obtained. Further, in each of the above-mentioned embodiments, the grace layer or the protective layer is formed in an arc shape in cross section so that the portion of the electric heating element is formed high, but in the present invention, the cross section shape may be trapezoidal or square stepwise. Further, in the present invention, the base may be formed, for example, in a triangular cross section, and the electric heating element may be provided at the apex thereof, and the protective layer is not essential. Further, the electric heating element may be made of any material. Further, there is no limitation on the use of the heating body and the body to be heated.
このように、本発明の加熱体は基体上に設けた電気発熱
体の部分を他の部分より高くし、しかもその高さを一様
でかつ連続させたので、被加熱体を直接に加熱すること
ができ、また被加熱体の接触が長く、一様に密着し、一
様に加熱できる。As described above, in the heating element of the present invention, the portion of the electric heating element provided on the substrate is made higher than the other portions, and the height is made uniform and continuous, so that the object to be heated is directly heated. In addition, the object to be heated has a long contact, and evenly adheres and can be heated uniformly.
第１図は本発明の加熱体の一実施例の平面図、第２図は
同じく縦断面図、第３図は同じく拡大横断面図、第４図
は他の実施例の拡大横断面図である。 (1)……基体、(2)……グレース層、 (3)……電気発熱体、(31)……発熱部、 (32)……端子部、(4)……保護層。FIG. 1 is a plan view of an embodiment of the heating element of the present invention, FIG. 2 is a longitudinal sectional view of the same, FIG. 3 is an enlarged transverse sectional view of the same, and FIG. 4 is an enlarged transverse sectional view of another embodiment. is there. (1) ... Substrate, (2) ... Grace layer, (3) ... Electric heating element, (31) ... Heating section, (32) ... Terminal section, (4) ... Protective layer.
フロントページの続き (56)参考文献 特開 昭58−63478（ＪＰ，Ａ) 特開 昭62−170185（ＪＰ，Ａ) 特開 昭60−40262（ＪＰ，Ａ) 特開 昭59−114076（ＪＰ，Ａ) 実開 昭56−173453（ＪＰ，Ｕ) 実開 昭59−71595（ＪＰ，Ｕ)Continuation of the front page (56) Reference JP-A-58-63478 (JP, A) JP-A-62-170185 (JP, A) JP-A-60-40262 (JP, A) JP-A-59-114076 (JP , A) Actual development 56-173453 (JP, U) Actual development 59-71595 (JP, U)
Claims (1)
子部を設けてなる加熱体において、上記電気発熱体の部
分が他の部分に比べて高く形成され、しかもその高さが
一様でかつ連続していることを特徴とする加熱体。1. A heating element comprising terminals provided at both ends of an elongated electric heating element provided on a base, wherein the electric heating element is formed to have a height higher than other portions, and the height is uniform. A heating element characterized by being continuous and continuous.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63215734A JPH0632276B2 (en) | 1988-08-30 | 1988-08-30 | Heating body |
| EP89308485A EP0360418B1 (en) | 1988-08-25 | 1989-08-22 | Strip heater |
| US07/396,700 US5068517A (en) | 1988-08-25 | 1989-08-22 | Printed strip heater |
| DE68921124T DE68921124T2 (en) | 1988-08-25 | 1989-08-22 | Heating strips. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63215734A JPH0632276B2 (en) | 1988-08-30 | 1988-08-30 | Heating body |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9664395A Division JPH0837083A (en) | 1995-04-21 | 1995-04-21 | Heating body for fixing, fixing device, and copying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0265086A JPH0265086A (en) | 1990-03-05 |
| JPH0632276B2 true JPH0632276B2 (en) | 1994-04-27 |
Family
ID=16677312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63215734A Expired - Fee Related JPH0632276B2 (en) | 1988-08-25 | 1988-08-30 | Heating body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0632276B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2712742B2 (en) * | 1990-04-16 | 1998-02-16 | 東芝ライテック株式会社 | Heater and image forming apparatus |
| EP0546495B1 (en) * | 1991-12-09 | 1997-03-12 | Toshiba Lighting & Technology Corporation | Fixing heater and method of manufacturing fixing heater |
| JPH08264269A (en) * | 1995-03-28 | 1996-10-11 | Rohm Co Ltd | Heater for sheet material |
| JP3826961B2 (en) * | 1996-03-25 | 2006-09-27 | ローム株式会社 | Heating body and manufacturing method thereof |
| JP4770045B2 (en) * | 2001-03-30 | 2011-09-07 | シンフォニアテクノロジー株式会社 | Mobile system |
| JP4770046B2 (en) * | 2001-03-30 | 2011-09-07 | シンフォニアテクノロジー株式会社 | Mobile system |
| JP2008091321A (en) | 2006-09-08 | 2008-04-17 | Ricoh Co Ltd | Heating device, erasing device, information recording and erasing device, and transfer device |
| JP6167880B2 (en) * | 2013-12-05 | 2017-07-26 | 東芝ライテック株式会社 | Heater and image forming apparatus |
| JP6398487B2 (en) | 2014-09-03 | 2018-10-03 | 東芝ライテック株式会社 | Heater and image forming apparatus |
| JP5977908B2 (en) * | 2014-09-05 | 2016-08-24 | オリンパス株式会社 | Grasping treatment unit, grasping treatment instrument, and grasping treatment system |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52168970U (en) * | 1976-06-15 | 1977-12-21 | ||
| JPS576972Y2 (en) * | 1977-05-19 | 1982-02-09 | ||
| JPS5637587U (en) * | 1979-08-27 | 1981-04-09 | ||
| JPS5682282A (en) * | 1979-12-11 | 1981-07-04 | Ricoh Co Ltd | Manufacture of heat sensitive recording head |
| JPS56173453U (en) * | 1980-05-28 | 1981-12-21 | ||
| JPS5815069A (en) * | 1981-07-17 | 1983-01-28 | 松下電器産業株式会社 | Ceramic composition for heating body |
| JPS5863478A (en) * | 1981-10-13 | 1983-04-15 | Matsushita Electric Ind Co Ltd | Manufacture of thermal head |
| JPS59114076A (en) * | 1982-12-21 | 1984-06-30 | Matsushita Electric Ind Co Ltd | Thermal head and manufacture thereof |
| JPS6246657A (en) * | 1985-08-23 | 1987-02-28 | Mitsubishi Electric Corp | Production of thermal head |
| JPS62245276A (en) * | 1986-04-18 | 1987-10-26 | Fuji Photo Film Co Ltd | Heat fixing device |
| JP2534847B2 (en) * | 1986-07-31 | 1996-09-18 | 京セラ株式会社 | Ceramic Heater |
| JPS63111066A (en) * | 1986-10-29 | 1988-05-16 | Mitsubishi Electric Corp | Thermal head |
| JPS63125355A (en) * | 1986-11-14 | 1988-05-28 | Fuji Xerox Co Ltd | Thick film thermal head |
-
1988
- 1988-08-30 JP JP63215734A patent/JPH0632276B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0265086A (en) | 1990-03-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |