JPH07192847A - Resistor heater - Google Patents
Resistor heaterInfo
- Publication number
- JPH07192847A JPH07192847A JP5331527A JP33152793A JPH07192847A JP H07192847 A JPH07192847 A JP H07192847A JP 5331527 A JP5331527 A JP 5331527A JP 33152793 A JP33152793 A JP 33152793A JP H07192847 A JPH07192847 A JP H07192847A
- Authority
- JP
- Japan
- Prior art keywords
- heating element
- resistance heating
- electrode
- resistor heater
- width
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、はしご状に形成された
抵抗発熱体により加熱を行う抵抗体ヒータに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resistor heater for heating by a ladder-shaped resistance heating element.
【０００２】[0002]
【従来の技術】圧電素子等により圧力を印加し、細いノ
ズルからインクを吐出させて印字を行うインクジェット
プリンタが安価で低騒音のプリンタとして用いられてい
る。しかし、使用していない間に固化したインクがノズ
ルに目詰まりを生じさせ印字ができなくなるという問題
があった。2. Description of the Related Art Ink jet printers that perform printing by applying pressure by a piezoelectric element or the like and ejecting ink from thin nozzles are used as inexpensive and low noise printers. However, there is a problem in that the ink that has solidified while not in use causes clogging of the nozzles and printing cannot be performed.
【０００３】これに対し、常温では固体であるワックス
に顔料等を混合したインクを用いたインクジェットプリ
ンタは、印字時にはインクを加熱溶融させてノズルから
吐出させる。すなわち、使用しない間はノズル等は常温
であり、ノズル内のインクは固化しているが使用時には
あらかじめヘッドを加熱し、ノズル内等のインクを加熱
溶融させる。このため、ノズルの目詰まりが生じず信頼
性の高い印字が可能となる。On the other hand, an ink jet printer which uses an ink in which a pigment or the like is mixed with a wax which is solid at room temperature, heats and melts the ink during printing and ejects it from a nozzle. That is, the nozzle or the like is at room temperature when not in use, and the ink in the nozzle is solidified, but the head is heated in advance to heat and melt the ink in the nozzle or the like during use. Therefore, nozzle clogging does not occur, and highly reliable printing is possible.
【０００４】従来、このようなインクジェットプリンタ
の印字ヘッド１００を加熱するために、図８のような抵
抗体ヒータ１１２が用いられている。すなわち、圧電素
子によりノズルからインクを吐出させるインク吐出部１
０１を均一に加熱するための均熱板１０３に抵抗体ヒー
タ１１２が接着されている。抵抗体ヒータ１１２は絶縁
フィルム１０５と、電極１０７と、給電部１０８と、抵
抗発熱体１０９と、保護層１１０とから成る。Conventionally, in order to heat the print head 100 of such an ink jet printer, a resistor heater 112 as shown in FIG. 8 has been used. That is, the ink ejecting section 1 that ejects ink from the nozzle by the piezoelectric element
The resistor heater 112 is bonded to the heat equalizing plate 103 for uniformly heating 01. The resistor heater 112 includes an insulating film 105, an electrode 107, a power feeding portion 108, a resistance heating element 109, and a protective layer 110.
【０００５】給電部１０８と抵抗発熱体１０９は同一材
料で一体にスクリーン印刷により作製されており、図９
に示すように、給電部１０８は電極１０７と平行に、抵
抗発熱体１０９は電極１０７間にはしご状に形成されて
いる。給電部１０８は電極１０７とほぼ同じかやや狭い
幅で形成されており、抵抗発熱体１０９に効率よく電流
を供給する働きをする。電極１０７に電圧を印加するこ
とにより抵抗発熱体１０９に電流が流れ発熱が生じる。The power supply section 108 and the resistance heating element 109 are integrally made of the same material by screen printing.
As shown in FIG. 5, the power feeding portion 108 is formed in parallel with the electrodes 107, and the resistance heating element 109 is formed in a ladder shape between the electrodes 107. The power feeding portion 108 is formed with a width that is almost the same as or slightly narrower than the electrode 107, and serves to efficiently supply current to the resistance heating element 109. When a voltage is applied to the electrode 107, a current flows through the resistance heating element 109 to generate heat.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、抵抗発
熱体１０９には電極１０７と絶縁フィルム１０５との断
差により屈曲部１２０が生じており、ここには抵抗発熱
体１０９の発熱により大きな応力の変化が生じる。この
ため、長時間の使用や、頻繁に電圧をオン、オフするこ
とによる発熱と冷却の繰り返しにより抵抗発熱体１０９
の屈曲部１２０付近に図１０のようにクラックや断線が
生じ、正常な加熱を行うことができなくなるという問題
があった。However, the resistance heating element 109 has a bent portion 120 due to a gap between the electrode 107 and the insulating film 105, and a large change in stress occurs due to the heat generation of the resistance heating element 109. Occurs. For this reason, the resistance heating element 109 is used for a long time or by repeating heat generation and cooling by frequently turning the voltage on and off.
As shown in FIG. 10, cracks and disconnections occur near the bent portion 120, and normal heating cannot be performed.
【０００７】本発明は、上述した問題点を解決するため
になされたものであり、その目的とするところは抵抗発
熱体の断線が生じず、安価で信頼性の高い抵抗体ヒータ
を提供することにある。The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an inexpensive and highly reliable resistor heater in which the resistance heating element is not disconnected. It is in.
【０００８】[0008]
【課題を解決するための手段】この目的を達成するため
に本発明の抵抗体ヒータは、絶縁基体と、その上に設け
られた複数の電極と、電極間にはしご状に並設された抵
抗発熱体とを有し、電極と抵抗発熱体との接触部の幅が
抵抗発熱体の中央部の幅よりも広くされている。また、
抵抗発熱体は印刷により作製されていてもよい。In order to achieve this object, a resistor heater according to the present invention comprises an insulating substrate, a plurality of electrodes provided on the insulating substrate, and resistors arranged in a ladder pattern between the electrodes. The resistance heating element has a heating element, and the width of the contact portion between the electrode and the resistance heating element is wider than the width of the central portion of the resistance heating element. Also,
The resistance heating element may be produced by printing.
【０００９】[0009]
【作用】上記の構成を有する本発明の抵抗体ヒータで
は、電極と抵抗発熱体との接触部の幅が抵抗発熱体の中
央部の幅よりも広くされている。電極と絶縁基板との断
差によって電極と抵抗発熱体との接触部には屈曲が生じ
ている。しかし、電極と抵抗発熱体との接触部すなわ
ち、抵抗発熱体の屈曲部の幅は抵抗発熱体の中央部の幅
よりも広くされている。従って、抵抗発熱体の屈曲部で
は、電流密度が小さく発熱も少ないため、大きな応力変
化は生じず、断線は発生しない。さらに、給電部および
抵抗発熱体は同時に抵抗ペーストを印刷することにより
作製することもできる。In the resistor heater of the present invention having the above structure, the width of the contact portion between the electrode and the resistance heating element is made wider than the width of the central portion of the resistance heating element. Due to the gap between the electrode and the insulating substrate, the contact portion between the electrode and the resistance heating element is bent. However, the width of the contact portion between the electrode and the resistance heating element, that is, the bent portion of the resistance heating element is made wider than the width of the central portion of the resistance heating element. Therefore, in the bent portion of the resistance heating element, since the current density is small and the heat generation is small, a large stress change does not occur and the wire breakage does not occur. Further, the power supply unit and the resistance heating element can be manufactured by printing resistance paste at the same time.
【００１０】[0010]
【実施例】以下、本発明を具体化した一実施例を図面を
参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【００１１】インクジェットプリンタヘッド１０を加熱
するための本発明を好適に適用した抵抗体ヒータ１６
は、図１に示すように圧電素子によりノズルからインク
を吐出させるインク吐出部１２を均一に加熱するための
インバー合金等から成る均熱板１４に接着されている。
抵抗体ヒータ１６は絶縁基体として用いられるポリイミ
ド樹脂等の絶縁フィルム１８と、銅等から成る電極１９
と、給電部２０と、抵抗発熱体２１と、保護層２２とか
ら成る。A resistor heater 16 to which the present invention is preferably applied for heating the ink jet printer head 10.
1 is bonded to a heat equalizing plate 14 made of Invar alloy or the like for uniformly heating the ink ejecting portion 12 that ejects ink from the nozzle by the piezoelectric element as shown in FIG.
The resistor heater 16 includes an insulating film 18 such as a polyimide resin used as an insulating substrate and an electrode 19 made of copper or the like.
And a power supply unit 20, a resistance heating element 21, and a protective layer 22.
【００１２】給電部２０と抵抗発熱体２１は同一材料す
なわち、フェノール樹脂やエポキシ樹脂等から成るバイ
ンダ中にカーボンを分散させた抵抗ペーストを用い、よ
く知られているスクリーン印刷により図２に示すように
一体に作製されている。給電部２０は電極１９と平行
に、抵抗発熱体２１は電極１９間にはしご状に形成され
ている。電極１９と絶縁フィルム１８との断差によっ
て、抵抗発熱体２１には屈曲部２５が生じており、電極
１９と絶縁フィルム１８とに跨るようにして位置してい
る。The power supply section 20 and the resistance heating element 21 are made of the same material, that is, a resistance paste in which carbon is dispersed in a binder made of phenol resin, epoxy resin, or the like, and as shown in FIG. It is made in one. The power feeding portion 20 is formed in parallel with the electrodes 19, and the resistance heating element 21 is formed in a ladder shape between the electrodes 19. Due to the gap between the electrode 19 and the insulating film 18, a bent portion 25 is formed in the resistance heating element 21 and is positioned so as to straddle the electrode 19 and the insulating film 18.
【００１３】そして、給電部２０と抵抗発熱体２１との
接続部であるところの屈曲部２５の幅は、抵抗発熱体２
１の中央部すなわち、発熱部分２６の幅よりも広くなっ
ている。The width of the bent portion 25, which is the connecting portion between the power feeding portion 20 and the resistance heating element 21, is equal to that of the resistance heating element 2.
It is wider than the width of the central portion of 1, i.e., the heat generating portion 26.
【００１４】電極１９に電圧を印加することにより、電
流は電極１９から給電部２０を通り幅が狭くなっている
抵抗発熱体２１を流れ、抵抗発熱体２１において電流密
度が高くなり発熱が生じる。このとき、抵抗発熱体２１
の屈曲部２５の幅は、抵抗発熱体２１の中央部すなわ
ち、発熱部分２６の幅よりも広くなっているため、屈曲
部２５では電流密度が低く発熱は少ないため、屈曲部２
５における応力の変化は小さく、クラックや断線は発生
しない。By applying a voltage to the electrode 19, a current flows from the electrode 19 through the power feeding portion 20 to the resistance heating element 21 having a narrow width, and the resistance heating element 21 has a high current density to generate heat. At this time, the resistance heating element 21
Since the width of the bent portion 25 is wider than the width of the central portion of the resistance heating element 21, that is, the heating portion 26, the bent portion 25 has a low current density and little heat generation.
The change in stress in No. 5 is small, and no crack or disconnection occurs.
【００１５】この抵抗体ヒータ１０の製造方法は図３を
用いて説明する。電極１９はよく知られているプリント
配線基板と同様な方法で作製される。すなわち、同図
（ａ）のようにポリイミド等の絶縁フィルム１８にあら
かじめ圧延、圧着されている銅箔３１の上に耐エッチン
グ材３３により電極パターンを形成する。耐エッチング
材３３にはフォトレジスト、マスキングフィルム等が用
いられる。次に、塩化第２鉄等のエッチング液により銅
箔３１を溶かし、耐エッチング材３３を除去すると電極
１９が同図（ｂ）のように作製される。その上によく知
られているスクリーン印刷により抵抗ペーストを電極１
９および絶縁フィルム１８の上に印刷し、加熱焼成す
る。スクリーン印刷に用いられる版にはあらかじめ給電
部２０および抵抗発熱体２１のパターンが設けられてい
るため、給電部２０および抵抗発熱体２１は一度の印刷
で同図（ｃ）のように形成され、従って本実施例では、
安価に製造することができる。さらにその上にエポキシ
樹脂等の保護層２２をスクリーン印刷等により塗布する
ことにより抵抗体ヒータ１６が製造される。A method of manufacturing the resistor heater 10 will be described with reference to FIG. The electrode 19 is manufactured by a method similar to that of a well-known printed wiring board. That is, as shown in FIG. 3A, an electrode pattern is formed by the etching resistant material 33 on the copper foil 31 which is previously rolled and pressure-bonded to the insulating film 18 such as polyimide. As the etching resistant material 33, a photoresist, a masking film, or the like is used. Next, the copper foil 31 is melted with an etching solution such as ferric chloride and the etching resistant material 33 is removed, whereby the electrode 19 is produced as shown in FIG. Resistor paste is applied to the electrode 1 by well-known screen printing.
9 and printed on the insulating film 18 and baked by heating. Since the plate used for screen printing is provided with the pattern of the power feeding section 20 and the resistance heating element 21 in advance, the power feeding section 20 and the resistance heating element 21 are formed by one printing as shown in FIG. Therefore, in this embodiment,
It can be manufactured at low cost. Further, a protective layer 22 of epoxy resin or the like is applied thereon by screen printing or the like, whereby the resistor heater 16 is manufactured.
【００１６】以上、本発明の一実施例を図１乃至図３を
用いて詳細に説明したが、本発明は以上詳述した実施例
に限定されるものではなく、その主旨を逸脱しない範囲
で種々の変更を加えることができる。Although one embodiment of the present invention has been described in detail above with reference to FIGS. 1 to 3, the present invention is not limited to the embodiment described above in detail and does not depart from the spirit of the invention. Various changes can be made.
【００１７】抵抗発熱体２１の本数、幅、ピッチ、長
さ、形状は、抵抗発熱体２１の屈曲部２５すなわち、電
極１９と接触する部分の幅が抵抗発熱体２１の中央部２
６の幅よりも広くなっていれば、特に限定されない。例
えば、抵抗発熱体２１の形状を図４（ａ）、（ｂ）、
（ｃ）のようにしても、いずれも発熱部２６よりも屈曲
部２５の幅の方が広いため、同様にクラックおよび断線
防止効果が得られる。また、図５のように、発熱部分２
６の長さを変化させて発熱分布の制御を行ってもよい。The number, width, pitch, length and shape of the resistance heating elements 21 are such that the bent portion 25 of the resistance heating element 21, that is, the width of the portion in contact with the electrode 19 is the central portion 2 of the resistance heating element 21.
If it is wider than the width of 6, it is not particularly limited. For example, the shape of the resistance heating element 21 is shown in FIGS.
Even in the case of (c), since the bent portion 25 has a wider width than the heat generating portion 26, the same effect of preventing cracks and disconnection can be obtained. In addition, as shown in FIG.
The length of 6 may be changed to control the heat generation distribution.
【００１８】また、電極１９は平行である必要はなく、
例えば図６のように間隔が変化していてもよい。このと
き、抵抗発熱体２１の長さ、幅等は一本毎に変化してい
てもよい。Also, the electrodes 19 need not be parallel,
For example, the interval may change as shown in FIG. At this time, the length, width, etc. of the resistance heating element 21 may be changed for each one.
【００１９】また、給電部２０は必ずしも連続的に形成
されている必要はなく、また、図７のように設けなくて
もよい。Further, the power feeding section 20 does not necessarily have to be formed continuously and need not be provided as shown in FIG.
【００２０】また、抵抗発熱体２１の材料として用いら
れる抵抗ペーストの材料についても特に限定されること
はない。例えば、樹脂バインダとして、耐熱性の高いポ
リイミド樹脂等を用いてもよい。また、樹脂バインダ中
に分散されるカーボンの濃度についても必要な抵抗値に
応じて変化させることができる。また、電極材料につい
ても特に限定されない。また、絶縁基体１８の材料も絶
縁物であれば特に限定されない。また、導体の上に形成
された絶縁物を用いてもよい。また、電極は２本に限定
されず、例えば、３本の電極を設け各電極の間に抵抗発
熱体を形成してもよい。The material of the resistance paste used as the material of the resistance heating element 21 is not particularly limited. For example, a polyimide resin or the like having high heat resistance may be used as the resin binder. Also, the concentration of carbon dispersed in the resin binder can be changed according to the required resistance value. Also, the electrode material is not particularly limited. The material of the insulating substrate 18 is not particularly limited as long as it is an insulating material. Moreover, you may use the insulator formed on the conductor. Further, the number of electrodes is not limited to two, and for example, three electrodes may be provided and a resistance heating element may be formed between each electrode.
【００２１】[0021]
【発明の効果】以上説明したことから明かなように、本
発明の抵抗体ヒータでは電極と抵抗発熱体との接触部す
なわち、抵抗発熱体の屈曲部の幅は抵抗発熱体の中央部
の幅よりも広くされている。従って、抵抗発熱体の屈曲
部では、電流密度が小さく発熱も少ない。これにより、
屈曲部において、大きな応力変化は生じず、クラックや
断線は発生しないため、信頼性が向上する。さらに、抵
抗発熱体は抵抗ペーストの印刷により作製すれば、スパ
ッタ法等による薄膜形成とフォトリソグラフィーによる
パターン形成を組み合わせた製造方法と比べて安価とな
る。As is apparent from the above description, in the resistor heater of the present invention, the width of the contact portion between the electrode and the resistance heating element, that is, the bent portion of the resistance heating element is the width of the central portion of the resistance heating element. Has been wider than. Therefore, in the bent portion of the resistance heating element, the current density is small and the heat generation is small. This allows
In the bent portion, a large stress change does not occur, and cracks and disconnections do not occur, so reliability is improved. Furthermore, if the resistance heating element is manufactured by printing a resistance paste, the cost is lower than that of a manufacturing method that combines thin film formation by a sputtering method and pattern formation by photolithography.
【図１】本発明の抵抗体ヒータの一実施例を示す要部断
面図である。FIG. 1 is a sectional view of an essential part showing an embodiment of a resistor heater according to the present invention.
【図２】本発明の抵抗体ヒータの一実施例を示す要部平
面図である。FIG. 2 is a plan view of an essential part showing one embodiment of the resistor heater of the present invention.
【図３】本発明の抵抗体ヒータの製造方法を示す要部断
面図である。FIG. 3 is a cross-sectional view of an essential part showing the method for manufacturing the resistor heater of the present invention.
【図４】本発明の抵抗体ヒータの他の実施例を示す要部
平面図である。FIG. 4 is a main part plan view showing another embodiment of the resistor heater according to the present invention.
【図５】本発明の抵抗体ヒータの他の実施例を示す要部
平面図である。FIG. 5 is a main part plan view showing another embodiment of the resistor heater of the present invention.
【図６】本発明の抵抗体ヒータの他の実施例を示す要部
平面図である。FIG. 6 is a main part plan view showing another embodiment of the resistor heater of the present invention.
【図７】本発明の抵抗体ヒータの他の実施例を示す要部
平面図である。FIG. 7 is a main part plan view showing another embodiment of the resistor heater of the present invention.
【図８】従来の抵抗体ヒータを示す要部断面図である。FIG. 8 is a cross-sectional view of essential parts showing a conventional resistor heater.
【図９】従来の抵抗体ヒータを示す要部平面図である。FIG. 9 is a plan view of an essential part showing a conventional resistor heater.
【図１０】従来の抵抗体ヒータを示す要部平面図であ
る。FIG. 10 is a main part plan view showing a conventional resistor heater.
１６ 抵抗体ヒータ １８ 絶縁基体 １９ 電極 ２１ 抵抗発熱体 ２５ 電極と抵抗発熱体との接触部 ２６ 抵抗発熱体の中央部 16 Resistor Heater 18 Insulating Substrate 19 Electrode 21 Resistance Heater 25 Contact Part between Electrode and Resistance Heater 26 Central Part of Resistance Heater
───────────────────────────────────────────────────── フロントページの続き (72)発明者 浜口 ▲たく▼哉 名古屋市瑞穂区苗代町15番１号ブラザー工 業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hamaguchi ▲ Taku ▼ ya 15-1 Naeshiro-cho, Mizuho-ku, Nagoya-shi Brother Industrial Co., Ltd.
Claims (3)
電極と、前記電極間にはしご状に並設された抵抗発熱体
とを有し、前記電極と前記抵抗発熱体との接続部の幅を
前記抵抗発熱体の他の部分の幅よりも広くしたことを特
徴とする抵抗体ヒータ。1. An insulating substrate, a plurality of electrodes provided on the insulating substrate, and a resistance heating element arranged in a ladder shape between the electrodes, and a connecting portion between the electrode and the resistance heating element. Is wider than the width of the other part of the resistance heating element.
て、前記電極と前記抵抗発熱体との接続部の幅を抵抗発
熱体の中央部分の幅よりも広く形成すると共にその幅の
広い部分が電極と絶縁基体とに跨って位置することを特
徴とする抵抗体ヒータ。2. The resistor heater according to claim 1, wherein a width of a connecting portion between the electrode and the resistance heating element is formed wider than a width of a central portion of the resistance heating element, and a wide portion is formed. A resistor heater which is located across an electrode and an insulating substrate.
において、前記抵抗発熱体が印刷により作製されている
ことを特徴とする抵抗体ヒータ。3. The resistor heater according to claim 1, wherein the resistance heating element is produced by printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5331527A JPH07192847A (en) | 1993-12-27 | 1993-12-27 | Resistor heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5331527A JPH07192847A (en) | 1993-12-27 | 1993-12-27 | Resistor heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07192847A true JPH07192847A (en) | 1995-07-28 |
Family
ID=18244657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5331527A Pending JPH07192847A (en) | 1993-12-27 | 1993-12-27 | Resistor heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07192847A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004320014A (en) * | 2003-04-14 | 2004-11-11 | Agilent Technol Inc | Thin-film resistor element |
| JP2006294604A (en) * | 2005-03-17 | 2006-10-26 | Ist Corp | Planar heater, its manufacturing method, and image fixing device |
| JP2019207891A (en) * | 2019-09-03 | 2019-12-05 | 日本碍子株式会社 | Ceramic heater, sensor element, and gas sensor |
-
1993
- 1993-12-27 JP JP5331527A patent/JPH07192847A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004320014A (en) * | 2003-04-14 | 2004-11-11 | Agilent Technol Inc | Thin-film resistor element |
| JP2006294604A (en) * | 2005-03-17 | 2006-10-26 | Ist Corp | Planar heater, its manufacturing method, and image fixing device |
| JP2019207891A (en) * | 2019-09-03 | 2019-12-05 | 日本碍子株式会社 | Ceramic heater, sensor element, and gas sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5162814A (en) | Resin-coated thermal printer head | |
| JPH07192847A (en) | Resistor heater | |
| JPH07192857A (en) | Resistor heater | |
| JPH07192856A (en) | Resistor heater | |
| JPH07192855A (en) | Resistor heater | |
| WO1990013429A1 (en) | Bubble jet print head having improved resistive heater and electrode construction | |
| US7324126B2 (en) | Thermal head including bonding pads having irregular surfaces formed by forming irregularities on underlayer | |
| JP3231951B2 (en) | Thermal head and method of manufacturing the same | |
| JPH07192846A (en) | Resistor heater | |
| JP3289820B2 (en) | Thermal head | |
| KR970002656B1 (en) | Thermal printing head | |
| US6910761B2 (en) | Ink jet recording head and ink jet recording apparatus | |
| US6330014B1 (en) | Thermal head manufactured by sequentially laminating conductive layer, layer insulating layer and heater element on heat insulating layer | |
| JPS63278867A (en) | Thermal print head | |
| JP2512770Y2 (en) | Thermal head | |
| JP3129912B2 (en) | Manufacturing method of thermal head | |
| JPS62124962A (en) | Thermal head | |
| JP3734584B2 (en) | Ink jet recording head and apparatus therefor | |
| JP3365530B2 (en) | Thermal head | |
| JP2022125740A (en) | Forming method of heat accumulation layer, thermal print head and manufacturing method of the same, and thermal printer | |
| JP2022111568A (en) | Thermal print head, manufacturing method of the same, and thermal printer | |
| JP2005225053A (en) | Thermal head | |
| JPS60168668A (en) | Electrification system for thermal printer | |
| JP2004006289A (en) | Heater and image fixing device equipped with it | |
| JPS61181661A (en) | Two-dimensional thermal head |