JPH02164555A - Electrothermal transfer recording head - Google Patents
Electrothermal transfer recording headInfo
- Publication number
- JPH02164555A JPH02164555A JP32022388A JP32022388A JPH02164555A JP H02164555 A JPH02164555 A JP H02164555A JP 32022388 A JP32022388 A JP 32022388A JP 32022388 A JP32022388 A JP 32022388A JP H02164555 A JPH02164555 A JP H02164555A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- electrode
- recording head
- film
- electrodes
- 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
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 239000012212 insulator Substances 0.000 claims abstract description 3
- 239000012943 hotmelt Substances 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 239000010408 film Substances 0.000 abstract description 35
- 238000000034 method Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 3
- 239000004642 Polyimide Substances 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 abstract description 2
- 229920001721 polyimide Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 238000004544 sputter deposition Methods 0.000 abstract description 2
- 239000010409 thin film Substances 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 2
- 230000015556 catabolic process Effects 0.000 abstract 2
- 238000006731 degradation reaction Methods 0.000 abstract 2
- 229910052581 Si3N4 Inorganic materials 0.000 abstract 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000005530 etching Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- -1 silica nitride Chemical class 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/335—Structure of thermal heads
Abstract
Description
【発明の詳細な説明】
Ｉ産業上の利用分野１
本発明は、通電型熱転写記録装置に使用される記録ヘッ
ドに関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application 1 The present invention relates to a recording head used in an electrically conductive thermal transfer recording device.
［従来の技術ｌ
第５図に示すように電極基板１上に記録電極２を形成し
た従来の構造を有した通電型熱転写記録ヘッドを、第３
図に示すように搭載し、インクフィルム６と記録紙８が
僅かに変形するように挟圧し隣接する記録電極間に電圧
を印加してインクフィルムのインク層を融解し該記録紙
８に転写して所望の画素を形成するものであった。[Prior art l] As shown in FIG.
The ink film 6 and the recording paper 8 are mounted as shown in the figure, and the ink film 6 and the recording paper 8 are pressed together so that they are slightly deformed, and a voltage is applied between adjacent recording electrodes to melt the ink layer of the ink film and transfer it to the recording paper 8 as desired. pixels.
［発明が解決しようとする課題］
上記の様なヘッド構造では、以下のような問題点を有し
ていた。[Problems to be Solved by the Invention] The head structure described above has the following problems.
第５図に示すように、記録電極２の間の高さが記録電極
２よりも低いと、記録ヘッドはインクフィルムと記録紙
をプラテンで挟圧して印画するため、又、インクフィル
ム＼と印画紙は、上記の記録ヘッドとプラテンの間を移
動し、かつ、インクフィルムはある一定のテンションで
引っ弓長られているため記録電極２の間にインクフィル
ムが食い込み、第４図に示すよう記録電極２の先端部は
インクフィルムにより削られ丸くなってしまう。又、こ
れにより記録電極２とインクフィルムとの電気的接触性
が悪くなり印字品位が劣化するという問題点を有してい
た。As shown in FIG. 5, when the height between the recording electrodes 2 is lower than that of the recording electrodes 2, the recording head presses the ink film and recording paper with the platen to print, and the ink film and the recording paper are , the ink film is moved between the recording head and the platen, and the ink film is stretched out with a certain tension, so that the ink film bites between the recording electrodes 2 and the tip of the recording electrode 2 is moved as shown in FIG. is scraped by the ink film and becomes round. Furthermore, this has the problem of poor electrical contact between the recording electrode 2 and the ink film, resulting in deterioration of print quality.
［課題を解決するための手段］
上記問題点を解決するために本発明の通電型熱転写記録
ヘッドは、記録電極の間に記録電極の硬度と同等もしく
はそれ以上で、膜厚が記録電極とほぼ同等の絶縁体の硬
質膜を形成したものである。[Means for Solving the Problems] In order to solve the above-mentioned problems, the current-carrying thermal transfer recording head of the present invention has a film between the recording electrodes that has a hardness equal to or higher than that of the recording electrodes, and a film thickness that is approximately the same as that of the recording electrodes. A hard film made of an equivalent insulator is formed.
１作用１
本発明の上記構成によれば、電極部に接触するインクフ
ィルムが移動することによる電極部の機械的摩耗を低減
でき、これによる印画の劣下をなくすことができる。1 Effect 1 According to the above configuration of the present invention, it is possible to reduce mechanical wear of the electrode portion due to movement of the ink film in contact with the electrode portion, and it is possible to eliminate deterioration of printing due to this.
（実施例１
以下、本発明による実施例を図面に基づいて説明するが
、本発明はこれに限定されるものではない。(Example 1) Hereinafter, an example according to the present invention will be described based on the drawings, but the present invention is not limited thereto.
第１図に於て、アルミナ等のセラミックやガラス、ポリ
イミド等の樹脂をベースとした電極基板１上にスパッタ
等の薄膜法やメツキ法、或は、印刷等の厚膜法により記
録電極２を形成する。In FIG. 1, a recording electrode 2 is formed on an electrode substrate 1 based on ceramic such as alumina, glass, or resin such as polyimide by a thin film method such as sputtering, a plating method, or a thick film method such as printing. Form.
この記録電極２の間に、絶縁硬質膜３を形成する。ここ
で、この絶縁硬質膜３の形成方法には、デイスペンサー
或は、筆などにより硬質膜材料を塗布した後に部分エツ
チングを施し熱処理する方法か、スパッタ一部分エツチ
ング法、印刷法、ディッピング法等が考えられる。又、
絶縁硬質膜３を形成する箇所は、第１図に示すように記
録電極の間４全体に形成しても、又、第２図に示すよう
に、部分的に形成しても良いが、全体的に形成する方が
効果は大きく量産性にも（蚤れている。An insulating hard film 3 is formed between the recording electrodes 2 . Here, the method for forming the insulating hard film 3 includes a method of applying the hard film material with a dispenser or brush, followed by partial etching and heat treatment, a sputter partial etching method, a printing method, a dipping method, etc. Conceivable. or,
The insulating hard film 3 may be formed on the entire space between the recording electrodes 4 as shown in FIG. 1, or partially as shown in FIG. It is more effective and mass-producible if it is formed manually (although it is becoming increasingly difficult to form it).
形成する絶縁硬質Ｆ；！３の材質としては、硬くて耐熱
性に優れている五酸化タンタル、窒化ケイソ等が適して
いる。Insulating hard F;! As the material 3, tantalum pentoxide, silica nitride, etc., which are hard and have excellent heat resistance, are suitable.
絶縁硬質膜３の膜厚は、記録電極の間４にインクフィル
ムが食い込まない厚み、又は、食い込んで記録電極２が
摩耗しても許容できる印字品位が確保できる膜厚で良い
が記録電極とほぼ同等の厚みが最適である。記録電極よ
り絶縁硬質膜３が厚くなると、インクフィルムと記録電
極の電気的接触が悪くなるので所望の効果を得ることは
困難である。The thickness of the insulating hard film 3 may be such that the ink film does not dig into the spaces 4 between the recording electrodes, or it may be thick enough to ensure acceptable printing quality even if the ink film digs in and wears out the recording electrodes 2, but it is approximately equal to the thickness of the recording electrodes. The optimum thickness is If the insulating hard film 3 is thicker than the recording electrode, the electrical contact between the ink film and the recording electrode will deteriorate, making it difficult to obtain the desired effect.
上記の様に構成された通電型熱転写記録ヘッド５を使用
した印字機構を第３図に示した。A printing mechanism using the current-carrying type thermal transfer recording head 5 constructed as described above is shown in FIG.
第３図に於て、電極基板１の先端面１−ａ及び通電に係
わる記録電極２の先端面２ａに接触するインクフィルム
６に通電され、印画される。プラテン７は、インクフィ
ルム６、記録紙８を介して記録ヘッド５に押圧され、抑
圧部７−ａは、記録電極２の先端面２−ａ全体が抵抗層
９と接触するに十分な量の変形をしている。ここで、数
μｍから２０μｍ程度の厚さの記録電極２に対し、プラ
テン挿圧部７−ａの変形量は１００μｍから２００μｍ
、絶縁硬質膜３の膜厚は記録電極と同様、数μｍから２
０μｍが適当である。In FIG. 3, electricity is applied to the ink film 6 in contact with the tip end surface 1-a of the electrode substrate 1 and the tip end surface 2a of the recording electrode 2 involved in energization, and an image is printed. The platen 7 is pressed against the recording head 5 via the ink film 6 and the recording paper 8, and the suppressing portion 7-a is deformed by a sufficient amount so that the entire tip surface 2-a of the recording electrode 2 comes into contact with the resistance layer 9. doing. Here, for the recording electrode 2 having a thickness of approximately several μm to 20 μm, the amount of deformation of the platen pressing portion 7-a is 100 μm to 200 μm.
, the thickness of the insulating hard film 3 is from several μm to 2 μm, similar to the recording electrode.
0 μm is appropriate.
［発明の効果１
以上のように、本発明による通電型熱転写記録ヘッドを
使用することにより、記録電極の間４にある一定のテン
ションにより食い込むインクフィルムの量を低減するこ
とができ、これに伴い記録電極２のエツジ部の機械摩耗
を低減することが可能となる。このため従来の様な印画
品位の劣化を低減できるという効果を有する。[Effect of the invention 1 As described above, by using the current-carrying type thermal transfer recording head according to the present invention, it is possible to reduce the amount of ink film that digs in due to the constant tension between the recording electrodes 4, and accordingly, the recording Mechanical wear on the edge portion of the electrode 2 can be reduced. Therefore, it has the effect of reducing the deterioration in print quality that occurs in the prior art.
第１図は、本発明の通電型熱転写ヘッドの構造を示す図
。
第２図は、本発明の実施例を示す図。
第３図は、本発明の通電型熱転写記録ヘッドを搭載した
印字機構を示す図。
第４図は、従来技術の問題点を説明するための図。
第５図は、従来技術を示す図。
１・・・電極基板
２・・・記録電極
３・・・絶縁硬質膜
４・・・記録電極間
第１図
第２図
通電型熱転写記録ヘッド
インクフィルム
プラテン
記録紙
抵抗層
以上
出願人 セイコーエプソン株式会社
代理人弁理士 鈴木喜三部（他１名）
第３図FIG. 1 is a diagram showing the structure of the current-carrying type thermal transfer head of the present invention. FIG. 2 is a diagram showing an embodiment of the present invention. FIG. 3 is a diagram showing a printing mechanism equipped with the current-carrying type thermal transfer recording head of the present invention. FIG. 4 is a diagram for explaining problems in the prior art. FIG. 5 is a diagram showing the prior art. 1... Electrode substrate 2... Recording electrode 3... Insulating hard film 4... Between recording electrodes Figure 1 Figure 2 Current-carrying type thermal transfer recording head Ink film Platen Recording paper Resistance layer and above Applicant Seiko Epson Corporation Representative Patent Attorney Kizobe Suzuki (and 1 other person) Figure 3
Claims (1)
記録ヘッドと、弾性部材の間に、少なくとも抵抗層と熱
溶融インク層を有するインクフィルムと、記録紙を該弾
性部材が僅かに変形するように狭圧し隣接する記録電極
間に電圧を印加して該抵抗層に通電し発熱させ該熱溶融
インク層を融解し該記録紙に転写して、所望の画素を形
成する通電型熱転写記録装置に於て、前記記録電極の間
に絶縁体の硬質膜を形成したことを特徴とする通電型熱
転写記録ヘッド。 ２）前記硬質膜の硬度が、記録電極と同等、もしくはそ
れ以上であることを特徴とする請求項１記載の通電型熱
転写記録ヘッド。 ３）前記硬質膜の膜厚が、記録電極とほぼ同等であるこ
とを特徴とする請求項１記載の通電型熱転写記録ヘッド
。[Scope of Claims] 1) An ink film having at least a resistance layer and a heat-melting ink layer, and a recording paper are disposed between a recording head having a plurality of recording electrodes arranged in parallel on the side edges of an electrode substrate and an elastic member. The elastic member is compressed so as to be slightly deformed, and a voltage is applied between adjacent recording electrodes to energize the resistance layer and generate heat to melt the hot melt ink layer and transfer it to the recording paper, forming a desired pixel. 1. A current-carrying thermal transfer recording head, characterized in that a hard film of an insulator is formed between the recording electrodes. 2) The current-carrying thermal transfer recording head according to claim 1, wherein the hardness of the hard film is equal to or higher than that of the recording electrode. 3) The current-carrying thermal transfer recording head according to claim 1, wherein the thickness of the hard film is approximately the same as that of the recording electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32022388A JPH02164555A (en) | 1988-12-19 | 1988-12-19 | Electrothermal transfer recording head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32022388A JPH02164555A (en) | 1988-12-19 | 1988-12-19 | Electrothermal transfer recording head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02164555A true JPH02164555A (en) | 1990-06-25 |
Family
ID=18119099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32022388A Pending JPH02164555A (en) | 1988-12-19 | 1988-12-19 | Electrothermal transfer recording head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02164555A (en) |
-
1988
- 1988-12-19 JP JP32022388A patent/JPH02164555A/en active Pending
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