JPH0397568A - Thermal transfer recorder - Google Patents
Thermal transfer recorderInfo
- Publication number
- JPH0397568A JPH0397568A JP23503689A JP23503689A JPH0397568A JP H0397568 A JPH0397568 A JP H0397568A JP 23503689 A JP23503689 A JP 23503689A JP 23503689 A JP23503689 A JP 23503689A JP H0397568 A JPH0397568 A JP H0397568A
- Authority
- JP
- Japan
- Prior art keywords
- glaze layer
- groove
- heating element
- thermal head
- recording paper
- 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
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 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
- 238000000034 method Methods 0.000 abstract 1
- 230000008094 contradictory effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Electronic Switches (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ワードプロセッサー〇出カ装置、バーノナル
コンピューターの出力端末として使用されるサーマルヘ
ッドを用いた熱転写記録装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a thermal transfer recording device using a thermal head, which is used as an output device for a word processor or a vernonal computer.
従来の技術
近年、熱転写記録装置は、低騒音、メンテナンスフリー
、普通紙に印字可能等の点からワードブロセノサーの出
力装置、パーソナルコンピュータ一の出力端末等に広〈
用いられてきている。2. Description of the Related Art In recent years, thermal transfer recording devices have become widely used as output devices for word processors and output terminals for personal computers due to their low noise, maintenance-free, and ability to print on plain paper.
It is being used.
以下、従来の熱転写記録装置に用いられてーたサーマル
ヘッドについて第２図，第３図により説明する。第２図
は、従来のサーマルヘッドを示す斜視図であり、第３図
は同要部拡大断面図である。Hereinafter, a thermal head used in a conventional thermal transfer recording apparatus will be explained with reference to FIGS. 2 and 3. FIG. 2 is a perspective view of a conventional thermal head, and FIG. 3 is an enlarged cross-sectional view of the main parts thereof.
同図によると１は基板、２はグレーズ層、３ぱ発熱体、
４は保護膜である。なお、上記サーマルヘッドの製作は
、基板１上にグレーズ層２を形成させるため、基板１の
コーナ一部を切削し、この上にグレーズ層２を設け、更
にこの上に発熱体３及び保護膜４を形成して行っていた
。According to the figure, 1 is the substrate, 2 is the glaze layer, 3 is the heating element,
4 is a protective film. In order to form the glaze layer 2 on the substrate 1, the thermal head is manufactured by cutting a part of the corner of the substrate 1, forming the glaze layer 2 on top of it, and then adding the heating element 3 and the protective film on top of it. 4 was formed.
発明が解決しようとする課題
サーマルヘッドの発熱体３の下には、放熱を避けるため
、グレーズ層２を設けているが、これを効果的に行なう
にはある程度の厚みが必要となり、このためにはコーナ
ーの切削部分を多くしなければならず、その場合上述し
た従来の構成ではグレーズ層２の形状は、基板１との表
面張力によｂ自然に盛ジ上がるため、グレーズ層２０表
面の曲率半径が大きくなってしまい、結果、グレーズ層
２の表面にある発熱体３と記録用紙との接触面積が大き
くなり、発熱体３の押し圧力が低くなって発熱体３と記
録用紙との密着性が悪〈なり印字品質は悪くなる。逆に
、グレーズ層２の厚さを薄くすると発熱体３の熱が基板
１側へ逃げてし壕い、この場合も印字品質が悪くなって
しすう。このように従来の構成ではグレーズ層２の厚さ
とグレーズ層２の表面の曲率半径は相反する関係にあシ
印字品質に限界のあるものであった。Problems to be Solved by the Invention A glaze layer 2 is provided under the heating element 3 of the thermal head in order to avoid heat radiation, but a certain degree of thickness is required for this to be effective. In this case, in the conventional configuration described above, the shape of the glaze layer 2 naturally bulges due to the surface tension with the substrate 1, so the curvature of the surface of the glaze layer 20 has to be increased. The radius becomes large, and as a result, the contact area between the heating element 3 on the surface of the glaze layer 2 and the recording paper increases, and the pressing force of the heating element 3 decreases, which reduces the adhesion between the heating element 3 and the recording paper. This will result in poor print quality. On the other hand, if the thickness of the glaze layer 2 is made thinner, the heat of the heating element 3 will escape to the substrate 1 side, and in this case as well, the printing quality will deteriorate. As described above, in the conventional structure, the thickness of the glaze layer 2 and the radius of curvature of the surface of the glaze layer 2 have a contradictory relationship, which limits the printing quality.
課題を解決するための手段
本発明の熱転写記録装置はサーマルヘッドの基板に狭い
溝を設け、この溝内にグレーズ層を形成し、その上に発
熱体を設けたものである。Means for Solving the Problems The thermal transfer recording device of the present invention has a narrow groove provided in the substrate of a thermal head, a glaze layer formed within the groove, and a heating element provided thereon.
作用
以上のようにサーマルヘッドに溝を設け、この溝にグレ
ーズ層を形成させることにより、溝の深さ分だけグレー
ズ層の厚さを確保でき、又、この溝を狭い溝とすること
にようグレーズ層は表面張力によって盛ｂ上がシ、曲率
半径の小さいグレーズ層表面が形成され、発熱体の記録
用紙への押し付け圧力が高〈なって発熱体と記録用紙と
の密着性が良くなり印字品質を良好にできるものである
。As described above, by providing a groove in the thermal head and forming a glaze layer in this groove, the thickness of the glaze layer can be ensured by the depth of the groove, and it is also possible to make this groove narrow. The surface tension of the glaze layer causes the surface tension of the glaze layer to increase, forming a surface of the glaze layer with a small radius of curvature, and the pressing pressure of the heating element against the recording paper becomes high, which improves the adhesion between the heating element and the recording paper, resulting in printing. The quality can be improved.
実施例
以下、本発明の熱転写記録装置の一実施例について第１
図によシ説明する。第１図は本発明の要部であるサーマ
ルヘッドの要部断面図である。なお、熱転写記録装置は
、少なくとも以下に説明するサーマルヘッドとこのサー
マルヘッドに記録用紙を送る紙送り機構により構成され
るものである。Embodiment The following is a first embodiment of the thermal transfer recording apparatus of the present invention.
This will be explained with the help of a diagram. FIG. 1 is a sectional view of a main part of a thermal head, which is a main part of the present invention. Note that the thermal transfer recording device includes at least a thermal head described below and a paper feeding mechanism that feeds recording paper to the thermal head.
同図によると、１１はアルミナ製の基板、１１ａは基板
１１角部分に形成した溝部、１２は溝部１１１Ｌに形成
されたグレーズ層、１３はグレーズ層１２上に形成した
発熱体、１４は保護膜である。According to the figure, 11 is an alumina substrate, 11a is a groove formed in the corner of the substrate 11, 12 is a glaze layer formed in the groove 111L, 13 is a heating element formed on the glaze layer 12, and 14 is a protective film. It is.
なお、実験値的には第１図に示す溝深さ▲、溝巾Ｂはそ
れぞれ溝深さ▲が１０〜３０μｍ１溝巾Ｂは１００〜３
００μｍで良好な印字品質が得られることが確認された
。又、本実施例の溝１１１Ｌは記録用紙に対して垂直方
向に堀り下げて釦リ、溝１１ａの断面形状は矩形である
がこの他にもグレーズ層１２の厚ささえ確保していれば
半円形や台形でも良いものである。In addition, in terms of experimental values, the groove depth ▲ and the groove width B shown in Fig. 1 are 10 to 30 μm, respectively, and the groove width B is 100 to 30 μm.
It was confirmed that good printing quality could be obtained at 00 μm. In addition, the groove 111L in this embodiment is cut in a direction perpendicular to the recording paper, and the cross-sectional shape of the groove 11a is rectangular. It may also be circular or trapezoidal.
なお、溝形成部Ｃは１００μｍ〜３００μｍの間であれ
ば溝１１＆の開口部に平坦部１１ｂを設けても良い。Note that if the groove forming portion C is between 100 μm and 300 μm, a flat portion 11b may be provided at the opening of the groove 11&.
発明の効果
以上のようにサーマルヘッドに溝を設け、この溝にグレ
ーズ層を形成させることにより、溝の深さの分だけグレ
ーズ層の厚さが確保でき、発熱体で発生した熱が基板側
へ逃げにくくなる。又、グレーズ層の表面は、グレーズ
層の表面張力により盛ジ上がるため、この溝の幅を狭く
することによシ、グレーズ層表面の曲率半径が小さくな
う、発熱体の記録用紙への押し付け圧力が高くなりサー
マルヘッドと記録用紙との密着性が良くなるというよう
にグレーズ層の厚さとグレーズ層の表面の曲率半径とい
う印字品質にとって相反したものを同時に満足させるこ
とができるという効果が得られるものである。As described above, by providing a groove in the thermal head and forming a glaze layer in this groove, the thickness of the glaze layer can be ensured by the depth of the groove, and the heat generated by the heating element is transferred to the substrate side. It becomes difficult to escape. In addition, the surface of the glaze layer is bulged due to the surface tension of the glaze layer, so by narrowing the width of this groove, the radius of curvature of the glaze layer surface is reduced, and the heating element is pressed against the recording paper. The higher the pressure, the better the adhesion between the thermal head and the recording paper, which has the effect of simultaneously satisfying the thickness of the glaze layer and the radius of curvature of the surface of the glaze layer, which are contradictory to print quality. It is something.
第１図は本発明の一実施例である熱転写記録装置のサー
マルヘッドの要部断面図、第２図は従来の熱転写記録装
置のサーマルヘッドの斜視図、第３図は同要部断面図で
ある。
１１・・・・・・基板、１１！Ｌ・・・・・・溝、１２
・・・・・・グレーズ層、１３・・・・・・発熱体、１
４・・・・・・保護膜。FIG. 1 is a cross-sectional view of a main part of a thermal head of a thermal transfer recording device according to an embodiment of the present invention, FIG. 2 is a perspective view of a thermal head of a conventional thermal transfer recording device, and FIG. be. 11... Board, 11! L...Groove, 12
...Glaze layer, 13...Heating element, 1
4...Protective film.
Claims (1)
る紙送り機構とを備え、上記サーマルヘッドは、少なく
とも基板と、この基板に設けた溝内に充填したグレーズ
層と、このグレーズ層の表面上に形成した発熱体と、こ
の発熱体を保護する保護膜とを備えた熱転写記録装置。The thermal head includes at least a substrate, a glaze layer filled in a groove provided in the substrate, and a glaze layer formed on the surface of the glaze layer. A thermal transfer recording device comprising a heating element and a protective film that protects the heating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23503689A JPH0397568A (en) | 1989-09-11 | 1989-09-11 | Thermal transfer recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23503689A JPH0397568A (en) | 1989-09-11 | 1989-09-11 | Thermal transfer recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0397568A true JPH0397568A (en) | 1991-04-23 |
Family
ID=16980138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23503689A Pending JPH0397568A (en) | 1989-09-11 | 1989-09-11 | Thermal transfer recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0397568A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019031057A (en) * | 2017-08-09 | 2019-02-28 | 東芝ホクト電子株式会社 | Thermal print head and thermal printer |
| JP2019031058A (en) * | 2017-08-09 | 2019-02-28 | 東芝ホクト電子株式会社 | Thermal print head and thermal printer |
-
1989
- 1989-09-11 JP JP23503689A patent/JPH0397568A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019031057A (en) * | 2017-08-09 | 2019-02-28 | 東芝ホクト電子株式会社 | Thermal print head and thermal printer |
| JP2019031058A (en) * | 2017-08-09 | 2019-02-28 | 東芝ホクト電子株式会社 | Thermal print head and thermal printer |
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