JPH0647293B2 - Electrical transfer recording head - Google Patents
Electrical transfer recording headInfo
- Publication number
- JPH0647293B2 JPH0647293B2 JP9721987A JP9721987A JPH0647293B2 JP H0647293 B2 JPH0647293 B2 JP H0647293B2 JP 9721987 A JP9721987 A JP 9721987A JP 9721987 A JP9721987 A JP 9721987A JP H0647293 B2 JPH0647293 B2 JP H0647293B2
- Authority
- JP
- Japan
- Prior art keywords
- recording head
- ink film
- substrate
- sliding
- recording
- 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
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
- B41J2/33555—Structure of thermal heads characterised by type
- B41J2/3356—Corner type resistors
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、通電転写方式を用いた記録装置における記録
ヘッドの構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a recording head in a recording apparatus using an electric transfer method.
（従来の技術） 一般に、通電転写方式の記録装置においては、第２図に
示すように、プラテンａに記録紙ｂおよびインクフィル
ムｃを挾んで記録ヘッドｆを圧接し、この記録ヘッドｆ
がインクフィルムｃに通電状態で摺動することにより印
字動作を実行している。記録ヘッドｆは、基板ｅと該基
板ｅ上に配設された記録電極ｄとから構成されており、
インクフィルムｃは、抵抗層と熱溶融性インク層とから
構成されている。また、記録ヘッドｆにおける基板ｅの
材質としてはセラミックや樹脂が用いられており、この
基板ｅ上に複数個の記録電極ｄが配置されている。(Prior Art) Generally, in a recording apparatus of an electric transfer type, as shown in FIG. 2, a recording paper b and an ink film c are sandwiched between a platen a and a recording head f which is pressed against the platen a.
The printing operation is executed by sliding on the ink film c in the energized state. The recording head f is composed of a substrate e and a recording electrode d provided on the substrate e,
The ink film c is composed of a resistance layer and a heat-meltable ink layer. Ceramic or resin is used as the material of the substrate e of the recording head f, and a plurality of recording electrodes d are arranged on the substrate e.
（発明が解決しようとする問題点） しかしながら、印字動作時において、摺動による摩擦あ
るいは通電による発熱などによって記録ヘッドｆと接触
するインクフィルムｃの抵抗層の一部が剥離する事態が
発生する。この剥離された抵抗層（以下、印字カスと称
する）は、記録ヘッドｆの先端部に付着し、印字動作を
繰り返すうちに順次堆積して印写画質の著しい低下を招
いている。また、摺動による摩耗で後退量ｇが増加する
と、インクの転写性が悪化するという事態も生じてく
る。(Problems to be Solved by the Invention) However, during the printing operation, a part of the resistance layer of the ink film c that comes into contact with the recording head f may peel off due to friction due to sliding or heat generation due to energization. The peeled resistance layer (hereinafter, referred to as a print residue) adheres to the tip portion of the recording head f and is sequentially deposited while the printing operation is repeated, resulting in a marked deterioration of the print image quality. Further, when the amount of retreat g increases due to abrasion due to sliding, a situation may occur in which the transferability of ink deteriorates.
そこで、上記のような問題をセラミック基板を用いた記
録ヘッドｆと、樹脂製の基板を用いた記録ヘッドｆとに
わけて詳述する。Therefore, the problems as described above will be described in detail for the recording head f using the ceramic substrate and the recording head f using the resin substrate.
まず、セラミック基板を用いた記録ヘッドｆでは、印字
カスの付着・堆積する量が多く、インクフィルムｃとの
摺動による基板の摩耗量が少ないため、この印字カスは
ほとんどとれない。このため、このような印字カスの付
着に対して随時研磨シート等でラッピングして記録ヘッ
ドｆ先端の付着物を取り除き、印写画質の低下を防ぐ方
法がとられていた。しかし、このような方法では非常に
手間がかかり、ユーザーの利便性を低下させるという問
題があった。また、セラミック基板を用いた記録ヘッド
ｆは、その製造コストから見ても記録電極パターンの形
成、焼成時の工程で非常にコストの高いものになるとい
う問題があった。First, in the recording head f using a ceramic substrate, since the amount of print dust attached and accumulated is large and the amount of wear of the substrate due to sliding with the ink film c is small, this print dust is hardly removed. For this reason, a method has been adopted in which the adherence of such printing dust is lapped with a polishing sheet or the like at any time to remove the adhered matter at the tip of the recording head f to prevent the print quality from deteriorating. However, such a method is very time-consuming and has a problem of reducing user convenience. Further, the recording head f using the ceramic substrate has a problem that the manufacturing cost of the recording head f is extremely high in the steps of forming and firing the recording electrode pattern.
次に、樹脂基板を用いた記録ヘッドｆでは、前記セラミ
ック基板に比べれば摺動による摩耗量が非常に多く、印
字カスの付着・堆積が非常に少なくなり、印写画質の低
下もかなり小さなものになる。しかしながら、摩耗量が
多いために耐久性に劣るという問題があった。ここで、
摩耗量が多ければ、摩耗の進行に伴って後退量ｇが増加
し、インクフィルムｃとの接触面積が大きくなる。この
ため、インクフィルムｃに記録ヘッドｆを押し付ける圧
力が低下し、印字カスの付着・堆積が大きくなるととも
に、後退量ｇの増加によるインクの転写性が悪くなり、
印写画質を低下させてしまうという事態を招く。Next, in the recording head f using the resin substrate, the amount of wear due to sliding is much larger than that of the ceramic substrate, the adhesion and accumulation of printing dust is very small, and the deterioration of the print image quality is considerably small. become. However, there is a problem that durability is poor due to a large amount of wear. here,
If the amount of wear is large, the amount of retreat g increases with the progress of wear, and the contact area with the ink film c increases. For this reason, the pressure for pressing the recording head f against the ink film c is reduced, the adhesion and accumulation of print debris is increased, and the transferability of ink is deteriorated due to the increase of the retreat amount g
This causes a situation in which the print quality is degraded.
本発明は上記問題点を解決するもので、後退量増加によ
る転写性の悪化を防ぎ、耐久性の高い記録ヘッドを提供
することを目的とする。SUMMARY OF THE INVENTION The present invention solves the above problems, and an object of the present invention is to provide a recording head having high durability and preventing deterioration of transferability due to an increase in the amount of receding.
（問題点を解決するための手段） 本発明の通電転写記録ヘッドは、プラテンに記録紙及び
インクフィルムを挟んで圧接され、該インクフィルムに
通電状態で摺動することにより印字動作を実行する通電
記録ヘッドにおいて、通電記録ヘッドは、絶縁性を有す
る合成樹脂製の基板上の少なくとも前記インクフィルム
との摺動部分には複数本の記録電極が適宜間隔を隔てて
前記インクフィルムとの摺動方向に配置される一方、該
基板の裏面における少なくとも前記インクフィルムと摺
動する部位に複数本の溝が適宜間隔を隔てて前記インク
フィルムとの摺動方向に形成されたものである。(Means for Solving Problems) An electro-conductive transfer recording head of the present invention is an electro-conductive recording head that performs a printing operation by being pressed against a platen with a recording paper and an ink film interposed therebetween and sliding on the ink film in an energized state. In the energizing recording head, a plurality of recording electrodes are arranged in the sliding direction with respect to the ink film at appropriate intervals at least on a sliding portion with the ink film on a substrate made of a synthetic resin having an insulating property. On the other hand, a plurality of grooves are formed in the sliding direction with respect to the ink film at appropriate intervals on at least a portion of the back surface of the substrate that slides with the ink film.
（作用） 記録ヘッドの基板に樹脂を用いた場合、セラミックに比
べ摺動による摩耗量が非常に多いため、印字カスの付着
・堆積が非常に少なくなる。さらに、基板先端部に溝加
工を施すことによって、摩耗によるインクフィルムとの
接触面積の増加を抑制することができる。(Function) When a resin is used for the substrate of the recording head, the amount of abrasion due to sliding is much larger than that of ceramics, so that the adhesion and accumulation of printing dust is significantly reduced. Furthermore, by providing the groove processing on the tip portion of the substrate, it is possible to suppress an increase in the contact area with the ink film due to abrasion.
（実施例） 以下、本発明の一実施例を図面を参照して説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
第１図は、通電転写記録ヘッドの構造を示している。FIG. 1 shows the structure of an electric transfer recording head.
この通電記録ヘッド（以下、単に記録ヘッドという。）
は、図示しないプラテンに記録紙及びインクフィルムを
挟んで圧接し、該インクフィルムに通電状態で摺動する
ことにより印字動作を実行するもので、以下のように構
成されている。This energization recording head (hereinafter, simply referred to as a recording head)
The printing operation is performed by pressing a recording paper and an ink film with a platen (not shown) sandwiched therebetween and sliding the ink film in an energized state, and is configured as follows.
第１図において、１は厚さ約１mmの基板で、この基板１
の裏面の前記インクフィルムと摺動する部位には、適宜
深さの溝部１ａがこのインクフィルムとの摺動方向に複
数本形成されている。溝部１ａの幅Ａは０．８mmに形成
され、溝１ａと溝部１ａとの間に形成されたリム部１ｂ
の幅Ｂが０．２mmになされている。前記基板１の材質と
しては、例えばフェノール樹脂が用いられている。In FIG. 1, 1 is a substrate having a thickness of about 1 mm.
A plurality of groove portions 1a having an appropriate depth are formed in a portion of the back surface of the sheet that slides with the ink film in the sliding direction with the ink film. The width A of the groove portion 1a is 0.8 mm, and the rim portion 1b formed between the groove portion 1a and the groove portion 1a.
Has a width B of 0.2 mm. As the material of the substrate 1, for example, phenol resin is used.
前記基板１上には耐熱絶縁層２が厚さ約５０μｍに形成
されている。耐熱絶縁層２の材質としては、例えばポリ
イミド樹脂が用いられている。A heat resistant insulation layer 2 is formed on the substrate 1 to a thickness of about 50 μm. As the material of the heat resistant insulating layer 2, for example, polyimide resin is used.
前記耐熱絶縁層２上には記録電極３が前記溝部１ａと同
方向（インクフィルムとの摺動方向）に適宜間隔を隔て
て複数本配設されている。これら記録電極３は、例えば
電極幅約５０μｍ、電極ピッチ約１０６μｍで配列され
る。A plurality of recording electrodes 3 are arranged on the heat-resistant insulating layer 2 in the same direction as the grooves 1a (sliding direction with the ink film) at appropriate intervals. These recording electrodes 3 are arranged, for example, with an electrode width of about 50 μm and an electrode pitch of about 106 μm.
このように構成された記録ヘッドは、第１図における前
端部分がインクフィルムとの摺動部分となり、この摺動
時に所望の記録電極３に通電させることで印字動作を実
行する。In the recording head configured as described above, the front end portion in FIG. 1 becomes a sliding portion with respect to the ink film, and a printing operation is executed by energizing a desired recording electrode 3 during the sliding.
次に、上記のように構成された本発明の記録ヘッドと従
来の記録ヘッドとを用いて印字テストを行った時の結果
を比較する。Next, the results of a printing test performed using the recording head of the present invention and the conventional recording head having the above-described structures will be compared.
まず、溝部加工を施していないフェノール樹脂基板およ
びフォルステライト（セラミック）基板に、上記記録ヘ
ッドと同様に記録電極を配列させた各記録ヘッドを用い
て印写テストを行った場合について述べる。印写条件と
しては、記録紙およびインクフィルムを挾んでプラテン
に記録ヘッドの摺動部分を角度２５度で圧接し、３６０
０ＤＰＳの速度でインクフィルムに摺動させながら印写
する。この結果、フォルスライト基板ではインクフィル
ム約１００ｍの印写で印字カスによる印字画質の低下が
生じ始めたのに対し、樹脂基板では、インクフィルム約
２kmの印写後でも印写画質の低下はほとんどみられなか
った。また、このときのインクフィルムによる記録ヘッ
ド摺動部分の摩耗量は、インクフィルム４００ｍ印写さ
せた場合、記録ヘッド圧接部１cmあたりフィルステライ
ト基板を用いた記録ヘッドで２．９×１０-3mm3 、フェ
ノール樹脂基板を用いた記録ヘッドで３．６×１０-2mm
3 であった。このように、樹脂基板の記録ヘッドはセラ
ミック基板の記録ヘッドに比べて摩耗量が１０倍程度大
きいため、記録ヘッドの磨耗面が絶えず研磨されている
ことになり、印字カスの付着・堆積が非常に少なくな
り、印字画質の低下も少なくなるため、研磨シート等に
よるメンテナンスも大幅に省くことができ、非常に有効
である。また、樹脂基板は安価で且つ加工性に優れてお
り、記録電極の形成も接着、メッキ等によって低コスト
でできるため、より安価な記録ヘッドを提供することが
できる。First, a description will be given of a case where a printing test is performed on a phenol resin substrate and a forsterite (ceramic) substrate which are not grooved, using each recording head in which recording electrodes are arranged similarly to the above recording head. The printing conditions are as follows: the recording paper and the ink film are sandwiched, and the sliding portion of the recording head is pressed against the platen at an angle of 25 degrees.
Print while sliding on the ink film at a speed of 0 DPS. As a result, on the false light substrate, the deterioration of the print image quality due to the printing residue began to occur after printing the ink film of about 100 m, whereas on the resin substrate, the print image quality was almost deteriorated even after printing the ink film of about 2 km. There wasn't. Further, the abrasion amount of the recording film sliding portion by the ink film at this time is 2.9 × 10 −3 mm 3 in the recording head using the fillsterite substrate per 1 cm of the recording head pressure contact portion when the ink film is printed 400 m. 3.6 x 10 -2 mm with recording head using phenol resin substrate
Was 3 . As described above, since the amount of wear of the resin-based recording head is about 10 times larger than that of the ceramic-based recording head, the worn surface of the recording head is constantly polished, and the adhesion and accumulation of printing dust is extremely large. This is very effective because the maintenance of the polishing sheet and the like can be largely omitted because the deterioration of the print quality is reduced. Further, since the resin substrate is inexpensive and excellent in workability, and the recording electrode can be formed at low cost by adhesion, plating, etc., it is possible to provide a cheaper recording head.
次に、樹脂基板に溝加工を施した本発明の記録ヘッド
と、樹脂基板に溝加工を施さない記録ヘッドとを比較す
る。この結果、溝加工を施さなかった記録ヘッドではイ
ンクフィルム４〜５kmの印写で後退量約４００μｍとな
り、転写性の悪化が生じたが、樹脂基板に第１図に示す
ような溝加工を施した記録ヘッドでは、インクフィルム
による摺動部分の磨耗面が第１図において点線４で示し
たようになり、このため、約２０km相当印写した後の摩
耗状態でも溝部１ａでは後退量が約２５０μｍで一定と
なり、リム部１ｂの後退量増加による転写性の悪化は見
られなかった。Next, the recording head of the present invention in which the resin substrate is grooved is compared with the recording head in which the resin substrate is not grooved. As a result, in the recording head which was not grooved, the retreat amount was about 400 μm when printing the ink film 4 to 5 km, and the transferability was deteriorated. However, the resin substrate was grooved as shown in FIG. In the recording head, the worn surface of the sliding portion due to the ink film is as shown by the dotted line 4 in FIG. 1. Therefore, even if the worn state after printing for about 20 km, the retreat amount is constant at about 250 μm in the groove portion 1a. Therefore, the transferability did not deteriorate due to the increase in the receding amount of the rim portion 1b.
（発明の効果） 以上述べたように、本発明によれば、基板の裏面におけ
る少なくとも前記インクフィルムと摺動する部位に複数
本の溝が適宜間隔を隔てて前記インクフィルムとの摺動
方向に形成されたことで、インクフィルムとの摺動によ
るこの摺動部分での摩擦後退量を抑制することができ、
後退量増加に伴う転写性の悪化を防ぐことができ、耐久
性の高い通電転写記録ヘッドを提供することができる。(Effect of the Invention) As described above, according to the present invention, a plurality of grooves are formed in the sliding direction with respect to the ink film at appropriate intervals at least on the portion of the back surface of the substrate that slides with the ink film. By doing so, it is possible to suppress the amount of friction receding at this sliding portion due to sliding with the ink film,
It is possible to prevent deterioration of transferability due to an increase in the amount of retreat, and it is possible to provide an electrotransfer recording head having high durability.
また、溝加工を施した合成樹脂基板を用いることによ
り、記録ヘッド先端部への印字カスの付着・堆積が非常
に少なくなり、印写画質の低下も少なくなるため、研磨
シート等によるメンテナンスも大幅に省くことができ
る。さらに、合成樹脂基板は安価で且つ加工性に優れて
おり、記録電極の形成も接着、メッキ等によって低コス
トでできるため、より安価な記録ヘッドを提供すること
ができる。Also, by using a grooved synthetic resin substrate, the adhesion and accumulation of print debris on the tip of the recording head is greatly reduced, and the deterioration of the printed image quality is also reduced. Can be omitted. Further, the synthetic resin substrate is inexpensive and excellent in workability, and the recording electrode can be formed at low cost by adhesion, plating, etc., so that a cheaper recording head can be provided.
第１図は本発明に係る通電転写記録ヘッドの先端部を示
す斜視図、第２図は通電転写方式における原理を説明す
る説明図である。 １……基板、１ａ……溝部 １ｂ……リム部、２……耐熱絶縁層 ３……記録電極FIG. 1 is a perspective view showing a front end portion of an electric transfer recording head according to the present invention, and FIG. 2 is an explanatory view for explaining the principle of the electric transfer method. 1 ... Substrate, 1a ... Groove 1b ... Rim, 2 ... Heat-resistant insulating layer 3 ... Recording electrode
───────────────────────────────────────────────────── フロントページの続き (72)発明者 浅井 重美 大阪府大阪市阿倍野区長池町22番22号 シ ャープ株式会社内 (72)発明者 豊島 哲朗 大阪府大阪市阿倍野区長池町22番22号 シ ャープ株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigemi Asai 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Within Sharp Corporation (72) Inventor Tetsuro Toyoshima 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Inside the company
Claims (1)
んで圧接され、該インクフィルムに通電状態で摺動する
ことにより印字動作を実行する通電記録ヘッドにおい
て、 通電記録ヘッドは、絶縁性を有する合成樹脂製の基板上
の少なくとも前記インクフィルムとの摺動部分には複数
本の記録電極が適宜間隔を隔てて前記インクフィルムと
の摺動方向に配置される一方、該基板の裏面における少
なくとも前記インクフィルムと摺動する部位に複数本の
溝が適宜間隔を隔てて前記インクフィルムとの摺動方向
に形成されたことを特徴とする通電転写記録ヘッド。1. A current-carrying recording head, which presses a recording paper and an ink film with a platen sandwiched therebetween, and performs a printing operation by sliding on the ink film in a current-carrying state, wherein the current-carrying recording head is made of an insulating synthetic resin. A plurality of recording electrodes are arranged in the sliding direction with the ink film at appropriate intervals on at least the sliding portion of the substrate with the ink film, while sliding on at least the ink film on the back surface of the substrate. An electric transfer recording head, characterized in that a plurality of grooves are formed at appropriate positions in a sliding direction with respect to the ink film.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9721987A JPH0647293B2 (en) | 1987-04-20 | 1987-04-20 | Electrical transfer recording head |
| EP88106082A EP0288844B1 (en) | 1987-04-20 | 1988-04-16 | Recording head for use in an electrically excited transfer recording device |
| DE8888106082T DE3877804T2 (en) | 1987-04-20 | 1988-04-16 | RECORDING HEAD FOR USE IN A RECORDING DEVICE WORKING ACCORDING TO THE ELECTRICALLY EXCITED TRANSMISSION PRINCIPLE. |
| US07/182,450 US4907016A (en) | 1987-04-20 | 1988-04-18 | Recording head for use in an electrically excited transfer recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9721987A JPH0647293B2 (en) | 1987-04-20 | 1987-04-20 | Electrical transfer recording head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63262251A JPS63262251A (en) | 1988-10-28 |
| JPH0647293B2 true JPH0647293B2 (en) | 1994-06-22 |
Family
ID=14186519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9721987A Expired - Fee Related JPH0647293B2 (en) | 1987-04-20 | 1987-04-20 | Electrical transfer recording head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0647293B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01275063A (en) * | 1988-04-27 | 1989-11-02 | Teikoku Piston Ring Co Ltd | Energization transfer-type recording head |
| JP4895350B2 (en) * | 2005-12-05 | 2012-03-14 | セイコーインスツル株式会社 | Heating resistance element component, its manufacturing method and thermal printer |
-
1987
- 1987-04-20 JP JP9721987A patent/JPH0647293B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63262251A (en) | 1988-10-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |