JPS6294355A - Recording head - Google Patents
Recording headInfo
- Publication number
- JPS6294355A JPS6294355A JP23484385A JP23484385A JPS6294355A JP S6294355 A JPS6294355 A JP S6294355A JP 23484385 A JP23484385 A JP 23484385A JP 23484385 A JP23484385 A JP 23484385A JP S6294355 A JPS6294355 A JP S6294355A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- recording electrode
- layer
- support
- ceramics
- 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
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
Landscapes
- Electronic Switches (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野]
本発明は通電熱転′グ記録方式による印写装置に用いる
記録ヘッドに間する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a recording head used in a printing device using an energized thermal transfer recording method.
[従来の技術]
通電熱転写記録方式は、第3−A図、第3−1図に示す
ようにポリエチレンフィルム等のベース2の一方の面に
抵抗層1を、他方の面に熱溶融性インク層3を形成した
熱転写アイルム4を用いる一方、騙初回路5に直結され
た記録電極6を一定間隔を保って配設しである記録ヘッ
ド7をIII y)、記録電極6の先端を熱転′す′フ
イルノ、4の抵抗層1に接触させ記録電極6と帰路電極
8間に電圧を印加して抵抗層1にジュール熱を発生させ
、インク層3を溶融させて所定のパターンをドツト構成
により印字するものである。[Prior Art] As shown in FIGS. 3-A and 3-1, the electrical thermal transfer recording method uses a resistive layer 1 on one side of a base 2 such as a polyethylene film, and a heat-melting ink on the other side. While using the thermal transfer arm 4 on which the layer 3 is formed, a recording head 7 is used in which recording electrodes 6 directly connected to the decoder circuit 5 are arranged at regular intervals. The ink layer 1 is brought into contact with the resistive layer 1 of the film 4, and a voltage is applied between the recording electrode 6 and the return electrode 8 to generate Joule heat in the resistive layer 1, melting the ink layer 3 and forming a predetermined pattern into dots. It is printed by
又、通電熱転′q記録方式は熱転写方式と比較して熱効
率がよい、熱履歴が少なく高速印写が1「能階調表現が
可能等の特徴を有する。In addition, compared to the thermal transfer method, the energized heat transfer recording method has features such as better thermal efficiency, less thermal history, high speed printing, and the ability to express high-quality gradations.
[発明が解決しようとする問題点]
しかし前述の従来例では、長期印写時に前記抵抗層との
機械的摺動や通電時の放電、熱衝撃等により記録電極が
摩滅してしまい、果は前記抵抗層との接触性に不良をき
たし印写率Iilになってしまうという1久−I−の問
題点を有する。[Problems to be Solved by the Invention] However, in the above-mentioned conventional example, the recording electrode is worn out due to mechanical sliding with the resistance layer, discharge during energization, thermal shock, etc. during long-term printing, and the result is This has the problem of poor contact with the resistive layer, resulting in a printing rate of Iil.
特に抵抗層と記録電極の接触形状を工夫し抵抗層上の発
熱分布に勾配を作り、投入エネルギーを変化させること
により転写ドラ!・面積を変化させ一記鋒素子による面
積濃度階調を可能にした階調印写装置においては、抵抗
層と記録電極の接触形状により微妙に再現濃度が変化す
るので、僅かな記録電極の形状変化が致命的な画質劣化
を引き起していた。そこで本発明はこのような問題点を
解決するもので、その目的とするところは記録ヘッドの
耐久性を向」;せさせ高品質、高耐久性の通電熱転写記
録方式用ヘッドを提供することにある。In particular, by devising the contact shape between the resistive layer and the recording electrode, creating a gradient in the heat generation distribution on the resistive layer, and changing the input energy, the transfer driver can be improved. - In a gradation printing device that changes the area and enables areal density gradation using a single-layer element, the reproduced density changes slightly depending on the contact shape between the resistive layer and the recording electrode, so slight changes in the shape of the recording electrode This caused a fatal deterioration in image quality. SUMMARY OF THE INVENTION The present invention is intended to solve these problems, and its purpose is to improve the durability of the recording head and provide a high-quality, highly durable head for electrical thermal transfer recording. be.
[問題点を解決するための手段]
本発明の記録ヘッドは、記録電極が導電性セラミクスで
あることを特徴とする。[Means for Solving the Problems] The recording head of the present invention is characterized in that the recording electrodes are made of conductive ceramics.
[作用]
本来、通電熱転写記録方式における記録電極の摩耗の原
因には多くの要素が内在していると考えられる。1つは
熱転写フィルムの抵抗層との純粋に機械的な摺動による
記録電極の摩耗、1つば印写通電時の抵抗層の発熱1f
Ji撃による記録電極材質の崩落あるいは軟化による摩
耗、もう1つは印写通電時に起きる放電による摩耗等で
ある。[Operation] Originally, it is thought that there are many factors underlying the causes of abrasion of recording electrodes in the electrical thermal transfer recording method. One is the wear of the recording electrode due to purely mechanical sliding with the resistance layer of the thermal transfer film, and the other is the heat generation 1f of the resistance layer when electricity is applied during printing.
The other is wear due to collapse or softening of the recording electrode material due to Ji impact, and the other is wear due to discharge that occurs when printing current is applied.
従って記録電極材質に要求される特性としては室温での
硬度、耐熱(−1撃性をイ「する構造、少なくとも50
0°C〜1000°Cの高温状態における硬度、耐放電
性等が挙げられる。Therefore, the characteristics required of the recording electrode material are hardness at room temperature, heat resistance (-1
Examples include hardness in a high temperature state of 0°C to 1000°C, discharge resistance, etc.
セラミクスは上記特性に一般金属と比較して優れた特性
を有す。上記構成によれば、耐久性の優れた通電熱転写
記録方式用ヘッドが実現出来る。Ceramics have the above properties that are superior to those of general metals. According to the above configuration, it is possible to realize a head for an electrically conductive thermal transfer recording system with excellent durability.
[実施例]
第1−A図は、本発明の実施例における構造図であり、
第1−1図は本発明による記録ヘッドの記録部先端の拡
大図である。記録ヘッド7は記録部9、即動IC実装部
10、前記記録部9と即動IC実装部】0を電気的に結
合する結合部11より構成される。[Example] Figure 1-A is a structural diagram in an example of the present invention,
FIG. 1-1 is an enlarged view of the tip of the recording section of the recording head according to the present invention. The recording head 7 is composed of a recording section 9, a quick-action IC mounting section 10, and a coupling section 11 that electrically couples the recording section 9 and the quick-motion IC mounting section 0.
本実施例ではラインヘッドの構成とした。記録部9は記
録電極6と記録電極の支持体12、記録電極上の絶縁膜
30より構成される。支持体12は雲母を主成分とする
切削性のセラミクスを用いた。記録電極は前記支持体上
にCVD法により導電性を1=t 、’j−t、たセラ
ミクスをコーティングした。In this embodiment, a line head configuration was adopted. The recording section 9 is composed of a recording electrode 6, a support 12 for the recording electrode, and an insulating film 30 on the recording electrode. The support 12 was made of machinable ceramics containing mica as a main component. The recording electrode was made by coating ceramics having conductivity of 1=t,'j-t on the support by CVD method.
記録電極は3層構造とし、その主成分は支持体側より炭
化チタン63、炭窒化チタン62、窒化チタン61であ
る。」−記のような3層構造とすることにより支持体と
の密着性が向」ニした。上記導電セラミクスの硬度は約
1300Hvであり、タングステン等の高融点金属に比
して非常に硬い、記録電極の厚みは総計で約10μmで
ある。上記手法により支持体の全面に導電性セラミクス
をコーティングした後、ドライエツチングにより前記導
電性セラミクスの不必要な部分だけ侵食除去させ意図す
るパターンを形成させた。The recording electrode has a three-layer structure, and its main components are titanium carbide 63, titanium carbonitride 62, and titanium nitride 61 from the support side. By forming the three-layer structure as shown in "-", the adhesion to the support was improved. The hardness of the conductive ceramic is about 1300 Hv, which is much harder than high melting point metals such as tungsten, and the total thickness of the recording electrode is about 10 μm. After coating the entire surface of the support with conductive ceramics using the above method, dry etching was performed to erode and remove unnecessary portions of the conductive ceramics to form the intended pattern.
記録電極−にのP!縁膜30は導電性のゴミや或いは印
写中に生じる抵抗層成分の剥離片等が記録電極上に付着
し導体間で電気的短絡を起こすのを防止するためのもの
で、前記記録電極より比較的軟らかい無機絶縁性の耐熱
性を有したコーテイング材をディッピングにより均一に
塗布した。耐熱性は印写中の抵抗層の発熱による変質が
生じない程度でよい。又前記記録電極より比較的軟らか
い材質であると、記録ヘッド先端の通電の為に記録電極
が露出していなければいけない部分にたとえ前記絶縁層
が覆われていても、印写時の抵抗層との摺動により自動
的に絶縁層が除去され常に良好な通電状態が得られると
共に、通電に関与せず、かつ抵抗層の発熱部に近い最も
前記抵抗層の剥離成分が付着しやすい場所を効率良く被
覆保護できるからである。本実施例では、無機ガラスを
用いた。P on the recording electrode! The rim film 30 is for preventing conductive dust or peeled pieces of resistive layer components generated during printing from adhering to the recording electrode and causing an electrical short circuit between the conductors. A relatively soft inorganic insulating heat resistant coating material was applied uniformly by dipping. The heat resistance may be such that the resistance layer does not undergo deterioration due to heat generation during printing. In addition, if the material is relatively softer than the recording electrode, even if the insulating layer covers the part of the recording electrode that must be exposed for energization at the tip of the recording head, it will not work as the resistive layer during printing. The sliding of the insulating layer automatically removes the insulating layer, ensuring a good energizing condition at all times, and efficiently removes the peeling components of the resistive layer from the areas that are not involved in energizing and are closest to the heat generating part of the resistive layer. This is because it provides good coverage and protection. In this example, inorganic glass was used.
勿論絶縁膜が製造」−不必要な部分にはあらかじめ適切
なマスキングを施した。Of course, the insulating film was manufactured.'' - Appropriate masking was applied to unnecessary areas in advance.
次に上記本発明記録ヘッドを用いた印写装置の概略を述
べる。Next, an outline of a printing apparatus using the recording head of the present invention will be described.
第2図は本発明による記録ヘッドを用いた通電熱転写印
写装置の構造を示す図である。被転写紙24は被転写紙
供給ローラ21より供給され、また同じく熱転写フイル
ノ、4はフイルノ、供給ローラ27より供給され、プラ
テン23に上で記録ヘッド7により加圧、通電印写され
る。印写後の熱転写フィル1.4はフィルノ、巻き取り
ローラー29により巻き取られる。FIG. 2 is a diagram showing the structure of an electric thermal transfer printing apparatus using a recording head according to the present invention. A transfer paper 24 is supplied from a transfer paper supply roller 21 and also from a thermal transfer film 4, which is supplied from a supply roller 27, and is pressed and energized onto the platen 23 by the recording head 7. The thermal transfer film 1.4 after printing is wound up by a take-up roller 29.
熱転写フィルムは6μm厚のPETをベースとし、その
一方に抵抗層としてカーボン粒を樹脂中に分散し4〜6
μm厚にコーティングしたものをまた他方には顔料をワ
ックス中に分散し2〜3μIn厚にい塗布したものを用
いた。Thermal transfer film is based on PET with a thickness of 6 μm, and carbon grains are dispersed in the resin as a resistance layer on one side.
One was coated with a thickness of μm, and the other was coated with a pigment dispersed in wax and coated with a thickness of 2 to 3 μl.
」1記の印写装置により本発明記録ヘッドと他構成の記
録ヘッドの耐久性の評価結果を表1に示丈−表1−
なお、本実施例では導’at’をセラミクスとして炭化
チタン、炭窒化チタン、窒化チタンをそれぞれ主成分と
したものを用いたが、他に窒化けい素、炭化けい素、炭
化タングステン等゛導電性か付り、できるセラミクスで
あれげよい。又、本実施例では導体膜の形成法どしてC
VI)法を用いたが、他に蒸着、スパッタリング等のP
V [1法を用いてもよい、さらに本実施例では、支
持体」−の全面に膜形成した後でドライエツチングによ
りパターン形成を行っているが、このパターン形成を前
記のCVD法やPVD法による膜形成時に適当なマスキ
ングを行い同時に行ってもよい。またドライエツチング
以外の放電加工、機械加工等のパターニング手法を用い
ることも可能である。又、層構造が3層に限らないこと
も勿論である。Table 1 shows the evaluation results of the durability of the recording head of the present invention and recording heads of other configurations using the printing apparatus described in ``1''. Although titanium carbonitride and titanium nitride were used as the main ingredients, any other conductive ceramics such as silicon nitride, silicon carbide, and tungsten carbide may be used. In addition, in this example, the method of forming the conductive film was C.
VI) method was used, but other P methods such as vapor deposition and sputtering were used.
Furthermore, in this example, after forming a film on the entire surface of the support, a pattern is formed by dry etching. Appropriate masking may be performed at the same time as film formation. It is also possible to use patterning methods other than dry etching, such as electrical discharge machining and machining. Moreover, it goes without saying that the layer structure is not limited to three layers.
また記録ヘッド構造に間j7ては、従来の帰路電極を有
するタイプの記録ヘッドでも十分有効である。Furthermore, regarding the structure of the recording head, a conventional recording head having a return electrode is also sufficiently effective.
[発明の効果]
以上述べたように、本発明によれば記録電極に導電性セ
ラミクスを用いることにより、通電熱転写記録ヘッドの
耐久性が向上するという効果を有する。[Effects of the Invention] As described above, according to the present invention, by using conductive ceramics for the recording electrode, there is an effect that the durability of the electrically conductive thermal transfer recording head is improved.
第1−A図、第1−B図は本発明の通電熱転でグ記録ヘ
ッドの構造の一実施例を示す図である。
第2図は本発明の通電熱転写記録ヘッドを用いた印写装
置の概略を示す図である。
第3−A図、第3−B図は通電熱転写記録方式の原理を
示す図である。
1・・・・・抵抗層
2・・・・・ベース層
3・・・・・インク層
ll・・・・・熱転写フィルム
5・・・・・駆動回路
6・・・・・記録電極
7・・・・・記録ヘッド
30・・・・・絶縁皮膜FIGS. 1-A and 1-B are diagrams showing an embodiment of the structure of a recording head using current-carrying heat transfer according to the present invention. FIG. 2 is a diagram schematically showing a printing apparatus using the energized thermal transfer recording head of the present invention. FIGS. 3-A and 3-B are diagrams showing the principle of the electric thermal transfer recording method. 1...Resistance layer 2...Base layer 3...Ink layer 11...Thermal transfer film 5...Drive circuit 6...Recording electrode 7. ... Recording head 30 ... Insulating film
Claims (1)
ムの前記抵抗層に電圧を印加し前記抵抗層を通電発熱せ
しめ前記インク層を融解し被印写媒体にインクを転写す
ることにより記録を得る印写装置において、少なくとも
前記抵抗層に接触し電圧を印加する為の記録電極と前記
記録電極の支持部材よりなり、前記記録電極が導電性セ
ラミクスであることを特徴とする記録ヘッド。A printing device that obtains a record by applying a voltage to the resistive layer of an electrically conductive thermal transfer film having at least a resistive layer and an ink layer, causing the resistive layer to be energized and generate heat, melting the ink layer, and transferring the ink to a printing medium. A recording head comprising at least a recording electrode for contacting the resistance layer and applying a voltage, and a support member for the recording electrode, the recording electrode being made of conductive ceramics.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23484385A JPS6294355A (en) | 1985-10-21 | 1985-10-21 | Recording head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23484385A JPS6294355A (en) | 1985-10-21 | 1985-10-21 | Recording head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6294355A true JPS6294355A (en) | 1987-04-30 |
Family
ID=16977233
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23484385A Pending JPS6294355A (en) | 1985-10-21 | 1985-10-21 | Recording head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6294355A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01259966A (en) * | 1988-04-11 | 1989-10-17 | Fuji Xerox Co Ltd | Print recording head |
EP0342995A2 (en) * | 1988-05-20 | 1989-11-23 | Ngk Insulators, Ltd. | Recording head |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5244647A (en) * | 1975-10-06 | 1977-04-07 | Nippon Telegr & Teleph Corp <Ntt> | Recording device by means of the photo-conductive electrode for the te rhmal paper |
JPS5729470A (en) * | 1980-06-30 | 1982-02-17 | Ibm | Printing electrode |
-
1985
- 1985-10-21 JP JP23484385A patent/JPS6294355A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5244647A (en) * | 1975-10-06 | 1977-04-07 | Nippon Telegr & Teleph Corp <Ntt> | Recording device by means of the photo-conductive electrode for the te rhmal paper |
JPS5729470A (en) * | 1980-06-30 | 1982-02-17 | Ibm | Printing electrode |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01259966A (en) * | 1988-04-11 | 1989-10-17 | Fuji Xerox Co Ltd | Print recording head |
EP0342995A2 (en) * | 1988-05-20 | 1989-11-23 | Ngk Insulators, Ltd. | Recording head |
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