JPS62218148A - Recording head and recording method using recording head - Google Patents
Recording head and recording method using recording headInfo
- Publication number
- JPS62218148A JPS62218148A JP6063386A JP6063386A JPS62218148A JP S62218148 A JPS62218148 A JP S62218148A JP 6063386 A JP6063386 A JP 6063386A JP 6063386 A JP6063386 A JP 6063386A JP S62218148 A JPS62218148 A JP S62218148A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- recording
- pressure
- signal
- heating
- 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
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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
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は例えばイメージプロセッサや電子タイプライタ
−１或いはファクシミリ、各種掲示板等に使用し得る記
録ヘッド及び該記録ヘッドを用いた記録方法に関するも
のである。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a recording head that can be used, for example, in an image processor, an electronic typewriter 1, a facsimile machine, various bulletin boards, etc., and a recording method using the recording head. be.
〈従来の技術〉
感熱転写記録方法は使用する装置が小型軽屋にして騒音
がない等の一般的特徴に加えて、ｆｉｔＩ１紙に記録が
可能であることから近年底（使用されている。<Prior Art> The thermal transfer recording method has been widely used in recent years because of its general features such as the fact that the apparatus used is a small cabin and does not make any noise, and also because it is capable of recording on fitI1 paper.
上記感熱転写記録方法は熱溶融性インクを支持体上に塗
布形成してなるインクフィルムを使用し、該インクフィ
ルムを記録ヘッドによって画像パターン状に加熱し、溶
融したインクを記録紙に転写するものである。The thermal transfer recording method described above uses an ink film formed by coating a heat-melting ink on a support, heats the ink film in an image pattern with a recording head, and transfers the molten ink to recording paper. .
しかし、上記感熱転写記録方法は一度使用したインクフ
ィルムを使い捨てにしなければならない為にランニング
コストが高くなり、且つ使用済みインクフィルムの処理
が煩雑となる等の欠点がある。However, the above-mentioned thermal transfer recording method has drawbacks such as high running costs since the ink film once used must be disposed of, and the processing of the used ink film is complicated.
上記欠点を改善するものとして、例えば第５図に示す如
く、怒熱記録に使用する記録ヘッドｌの発熱体１ｃにイ
ンクが通過する為のインク通過孔１ｄを設けてなるもの
がある（特開昭５９−１１８４９３号、特開昭５９−２
２５９９０号）。To improve the above-mentioned drawbacks, for example, as shown in FIG. 5, there is a system in which an ink passage hole 1d for ink to pass through is provided in a heating element 1c of a recording head 1 used for angry heat recording. No. 59-118493, JP-A-59-2
No. 25990).
この方法はインク容器内に半固体インクを充填すると共
に、該インクに対して通過孔方向に常時圧力をかけ、発
熱体ｌｃを発熱させると該発熱体近傍のインクが軟化し
て粘性を下げる為、インクが前記通過孔１ｄを通過する
。従って前記通過孔１ｄをアレー状に形成した記録ヘッ
ドを使用し、夫々の発熱体１ｃに選択的な発熱信号を付
与することによって記録媒体２上にインク画像を記録す
るものである。In this method, an ink container is filled with semi-solid ink, pressure is constantly applied to the ink in the direction of the passage hole, and when a heating element lc is heated, the ink near the heating element softens and lowers the viscosity. , ink passes through the passage hole 1d. Therefore, an ink image is recorded on the recording medium 2 by using a recording head in which the passage holes 1d are formed in an array, and selectively applying a heating signal to each heating element 1c.
上記構成によれば、インクフィルムを使用する必要がな
く、またフィルムを介さずに直接インクを加熱し得るの
で熱エネルギー効率が良い等の利点があるものである。According to the above configuration, there is no need to use an ink film, and since the ink can be directly heated without using a film, there are advantages such as good thermal energy efficiency.
〈発明が解決しようとする問題点〉 しかし、上記構成にも欠点がないわけではない。<Problem that the invention seeks to solve> However, the above configuration is not without drawbacks.
上記の如く容器内のインクに常時圧力をかけると共に、
通過孔部分を加熱してインクを通過させる構成にあって
はインクの通過孔と記録媒体とが直接接触し、且つその
状態で相対的に摺動するので記録される画像に尾引き、
或いはカプリが生じ易い。As mentioned above, while constantly applying pressure to the ink in the container,
In a configuration in which the passage hole portion is heated to allow ink to pass through, the ink passage hole and the recording medium come into direct contact and slide relative to each other in that state, resulting in trailing or trailing on the recorded image.
Or capri tends to occur.
即ち、前記構成にありては通常使用するインクの熱容量
が発熱体に比べて比較的大きい為に、該インクが加熱さ
れて溶融ないし軟化すると、自己の蓄熱の為に暫くその
熱を保持する。この為に発熱体の温度が下がっても、イ
ンクは軟化状態のままであり、インク転写の際に尾引き
が生じ易くなる。That is, in the above structure, since the heat capacity of the ink normally used is relatively large compared to the heating element, when the ink is heated and melted or softened, it retains the heat for a while to store its own heat. For this reason, even if the temperature of the heating element decreases, the ink remains in a softened state, and trailing tends to occur during ink transfer.
また前記の如くインクに常時圧力をかけている為に、記
録すべき部分以外のインク通過孔からもインクが誤ワて
出てしまうことがあってカプリも生じ易くなる。Furthermore, since pressure is constantly applied to the ink as described above, the ink may erroneously come out of the ink passage holes in areas other than those to be recorded, making it easy for capri to occur.
本発明は従来の上記問題点を解決し、記録画像に尾引き
やカブリ等を生ずることな（高速記録が可能な記録ヘッ
ド及び該記録ヘッドを用いた記録方法を提供せんとする
ものである。The present invention solves the above-mentioned conventional problems and provides a printhead that can perform high-speed printing without causing trailing or fogging in the printed image, and a printing method using the printhead.
〈問題点を解決するための手段〉
上記従来の問題点を解決する本発明の手段は、内部にイ
ンクを収納可能な容器に貫通孔よりなる複数のインク通
過孔を設け、該インク通過孔或いはその近傍を選択的に
加熱する為の発熱手段を設け、該発熱手段の発熱に対応
して前記容器内に圧力を印加する為の加圧手段を連結し
てなる記録ヘッドを用いて記録を行うεとを特徴として
なるものである。<Means for Solving the Problems> The means of the present invention for solving the above-mentioned conventional problems is to provide a plurality of ink passage holes consisting of through holes in a container capable of storing ink inside, and to Recording is performed using a recording head which is provided with a heat generating means for selectively heating the vicinity thereof, and is connected to a pressurizing means for applying pressure within the container in response to the heat generated by the heat generating means. It is characterized by ε.
く作用〉
上記手段によれば、記録情報に応じてインク通過孔付近
−のインクが発熱手段によって加熱され、軟化したイン
クが記録媒体に転写記録される。またインクの加熱に対
応して容器内インクに加圧手段によって圧力がかかるの
でインク通過孔中心付近のインクが充分低粘度化しなく
ともインクを記録媒体に転写出来る。従って前記インク
を過度に加熱する必要がないので４ンクの尾引きを防止
して高速記録が可能となる。Effect> According to the above means, the ink near the ink passage hole is heated by the heat generating means according to the recording information, and the softened ink is transferred and recorded on the recording medium. Further, since pressure is applied to the ink in the container by the pressurizing means in response to the heating of the ink, the ink can be transferred to the recording medium even if the ink near the center of the ink passage hole does not have a sufficiently low viscosity. Therefore, it is not necessary to excessively heat the ink, so that trailing of the four inks can be prevented and high-speed recording can be performed.
またインクを加熱しないときは前記圧力がインクにかか
らないのでインク通過孔から誤ってインクが出てしまう
ことがなくなるのでカブリも防止されるものである。Furthermore, when the ink is not heated, the pressure is not applied to the ink, so ink will not accidentally come out of the ink passage holes, and fogging will also be prevented.
〈実施例〉
次に上記手段を適用した記録方法の一実施例を説明する
。<Example> Next, an example of a recording method to which the above means is applied will be described.
第１図は実施例に係る記録構成の模式説明図であり、第
２図は記録ヘッドの斜視説明図であり、第３図は該記録
ヘッドの書き込み部の要部説明図である。FIG. 1 is a schematic explanatory diagram of a recording configuration according to an embodiment, FIG. 2 is a perspective explanatory diagram of a recording head, and FIG. 3 is an explanatory diagram of a main part of a writing section of the recording head.
図に於いてｌは筒状に形成された記録ヘッドであって、
第２図に示す如く一部が記録媒体２に接触し得る筒状の
容器形杖であって、その内部に常温では高粘性を維持す
るが、高温になると粘性が低下する、所謂熱溶融（軟化
及び昇華を含む）性インクを収納し得るように構成され
ている。In the figure, l is a recording head formed in a cylindrical shape,
As shown in FIG. 2, it is a cylindrical container-shaped cane with a part that can come into contact with the recording medium 2, and inside it is a so-called thermal melting rod that maintains high viscosity at room temperature but decreases in viscosity at high temperatures. The container is configured to be able to accommodate ink that has a property of softening (including softening and sublimation).
前記記録媒体２との接触部分は第３図に示すように、＾
１ ｔ（ｈ等のセラミック或いはポリイミド等の耐熱性
基体１ａで構成され、該基体ｌａ上にニッケル、クロム
、或いは金等の合金、又は銅やアルミニウムからなる電
極１ｂが微小間隔をもって設けられ、相互の電極ｌｂ間
には窒化タンクル、酸化ルテニウム、或いはカーボンシ
ート等からなる電気的な発熱抵抗体１ｃが蒸着、印刷、
或いは貼り付は等によって設けられ、これによって発熱
手段が構成されている。尚、前記電極ｌｂ上には必要に
応じて絶縁保護膜１ｋを設ける。The contact portion with the recording medium 2 is as shown in FIG.
It is composed of a heat-resistant substrate 1a made of ceramic such as 1t(h) or polyimide, and electrodes 1b made of an alloy such as nickel, chromium, or gold, or copper or aluminum are provided on the substrate 1a at minute intervals. Between the electrodes lb, an electric heating resistor 1c made of nitride tank, ruthenium oxide, carbon sheet, etc. is deposited, printed, or
Alternatively, the pasting is provided by etc., and the heat generating means is constituted by this. Incidentally, an insulating protective film 1k is provided on the electrode lb, if necessary.
更に前記型ｉ１ｂで挟まれた発熱抵抗体１ｃ位置には、
該発熱抵抗体１ｃ及び基体１ａを貫通するインク通過孔
（以下ｒドツトＪという）ｌｄが穿孔されている。Furthermore, at the position of the heating resistor 1c sandwiched between the molds i1b,
Ink passage holes (hereinafter referred to as r-dots J) ld are bored through the heating resistor 1c and the base 1a.
即ち、前記トン）ｌｄは記録媒体２との接触部に於いて
アレイ状に形成され、所定の電極１ｂに通電すると該電
極１ｂに挟まれた位置の発熱抵抗体ＩＣが発熱し、その
結果トン）ｌｄ、或いはその近傍が加熱される如く構成
されている。That is, the ton) ld is formed in an array at the contact portion with the recording medium 2, and when a predetermined electrode 1b is energized, the heating resistor IC located between the electrodes 1b generates heat, and as a result, the ton ) ld or its vicinity is configured to be heated.
また前記記録へラドｌの電極１ｂはコネクタ３及び信号
ケーブル４を介して通電用電源５に接続され、該通電用
電源５にはドライブコントローラ６が接続されている。Further, the electrode 1b of the recording head 1 is connected to an energizing power source 5 via a connector 3 and a signal cable 4, and a drive controller 6 is connected to the energizing power source 5.
従って前記ドライブコントローラ６に外部信号として画
像信号が入ると、該画像信号に応じた所定位置の電極１
ｂに電圧が印加されるものである。Therefore, when an image signal is input to the drive controller 6 as an external signal, the electrode 1 is placed at a predetermined position according to the image signal.
A voltage is applied to b.
更に前記ドライブコントローラ６には、ディフユーズコ
ントローラ７が接続されている。このディフユーズコン
トローラ７は画像信号に応じて動作するドライブコント
ローラ６がらの信号に応じて空気圧印加パルスを発生す
るものである。そして前記パルスはディフュージョンレ
ギュレータ８に伝達され、該レギュレータ８が前記パル
スに応じて一定の空気圧を記録ヘッドｌの容器内に印加
する如く構成している。Furthermore, a diffuse controller 7 is connected to the drive controller 6. The diffuse controller 7 generates air pressure application pulses in response to signals from the drive controller 6 which operates in response to image signals. The pulse is then transmitted to a diffusion regulator 8, and the regulator 8 is configured to apply a constant air pressure into the container of the recording head l in response to the pulse.
従って前記記録ヘラド１の容器内にはディフュージョン
レギュレータ８がらの加圧によって、前記発熱抵抗体１
ｃへの通電周期と同期して一定の圧力が印加されるよう
になっている。Therefore, by pressurizing the inside of the recording head 1 from the diffusion regulator 8, the heating resistor 1 is
A constant pressure is applied in synchronization with the energization period to c.
尚、図中９は前記ディフュージョンレギュレータ８と記
録へラド１とを接続する加圧用チューブである。In addition, numeral 9 in the figure is a pressurizing tube that connects the diffusion regulator 8 and the recording head 1.
また記録媒体２は紙やポリエチレン、ポリプロピレン、
ポリエステル、テフロン等の表面を有するシート材等よ
りなり、記録に応じて間歇、或いは連続的に回転するプ
ラテンローラｌＯによって矢印ａ方向に搬送されるもの
である。The recording medium 2 may be paper, polyethylene, polypropylene,
It is made of a sheet material having a surface of polyester, Teflon, etc., and is conveyed in the direction of arrow a by a platen roller IO that rotates intermittently or continuously depending on recording.
次に前記記録ヘッドｌ内に充填するインクについて説明
すると、代表的には熱溶融性インクが使用し得る。この
熱溶融性インクは熱溶融性バインダー中に着色剤を分散
、或いは溶解させてなるもので、熱溶融性バインダーに
エラストマー類等を添加して溶融粘度、粘着力等を調整
する。Next, the ink to be filled into the recording head 1 will be described. Typically, a heat-melting ink can be used. This hot-melt ink is made by dispersing or dissolving a coloring agent in a hot-melting binder, and the melt viscosity, adhesive strength, etc. are adjusted by adding an elastomer or the like to the hot-melting binder.
熱溶融性バインダーは従来より使用されている天然或い
は合成のワックス樹脂等の各種のバインダーが単独で、
または二種以上混合して用いられる。Heat-melting binders include various conventionally used binders such as natural or synthetic wax resins, etc.
Or a mixture of two or more types can be used.
また例えば、熱溶融性バインダーに過冷却特性を有する
熱溶融性バインダーを油剤等と共にｍｗして添加すれば
、加熱位置と記録媒体２へのインクの転写位置に距離が
あっても良好な記録画像を得ることが出来る。尚、ここ
に過冷却特性を有するバインダーとは一旦融点（軟化点
）以上に加熱されて溶融ないし軟化した状態から冷却さ
れた場合に、本来の融点ないし軟化点以下の温度に於い
ても一定時間は溶融ないし軟化状態を保持するものをい
い、それ自体は公知のものである。For example, if a heat-melt binder having supercooling properties is added to the heat-melt binder together with an oil agent, etc., good recorded images can be obtained even if there is a distance between the heating position and the ink transfer position to the recording medium 2. can be obtained. Note that a binder with supercooling properties is defined as a binder that, once heated above the melting point (softening point) and cooled from the molten or softened state, it remains for a certain period of time even at a temperature below the original melting point or softening point. refers to a substance that maintains a molten or softened state, and is itself known.
インクを構成する熱溶融性バインダーとしては、鯨ロウ
、ミツロウ、ラノリン、カルナバワックス、キャンデリ
ラワックス、モンタンワックス、セレシンワックス等の
天然ワックス、パラフィンワックス、マイクロクリスタ
リンワックス等の石油ワックス、酸化ワックス、エステ
ルワックス、低分子量ポリエチレン、フィンシャートロ
プシュワックス等の合成ワックス、ラウリン酸、ミリス
チン酸、バルミチン酸、ステアリン酸、ベヘニン酸等の
高級脂肪酸、ステアリルアルコール、ベヘニルアルコー
ル等の高級アルコール、シラ糖の脂肪酸エステル、ソル
ビタンの脂肪酸エステル等のエステル類、オレイルアミ
ド等のアミド類、ポリアミド系樹脂、ポリエステル系樹
脂、エポキシ系樹脂、ポリウレタン系樹脂、ポリアクリ
ル系樹脂、ポリ塩化ヒニル系樹脂、セルロース系樹脂、
ポリビニルアルコール系樹脂、石油系樹脂、フェノール
系樹脂、ポリスチレン系樹脂、天然ゴム、スチレンブタ
ジェンゴム、イソプレンゴム、クロロプレンゴム等のエ
ラストマー類、或いは可塑剤、鉱油、植物油等の油剤を
適宜混合させ、溶融温度並びに溶融粘度をコントロール
して用いる。The heat-melting binders that make up the ink include natural waxes such as spermaceti wax, beeswax, lanolin, carnauba wax, candelilla wax, montan wax, and ceresin wax, petroleum waxes such as paraffin wax and microcrystalline wax, oxidized waxes, and esters. Wax, low molecular weight polyethylene, synthetic wax such as Finscher-Tropsch wax, higher fatty acids such as lauric acid, myristic acid, valmitic acid, stearic acid, behenic acid, higher alcohols such as stearyl alcohol and behenyl alcohol, fatty acid esters of sila sugar, sorbitan Esters such as fatty acid esters, amides such as oleylamide, polyamide resins, polyester resins, epoxy resins, polyurethane resins, polyacrylic resins, polyhinyl chloride resins, cellulose resins,
By appropriately mixing elastomers such as polyvinyl alcohol resin, petroleum resin, phenol resin, polystyrene resin, natural rubber, styrene-butadiene rubber, isoprene rubber, and chloroprene rubber, or a plasticizer, and an oil agent such as mineral oil or vegetable oil, It is used by controlling the melting temperature and melt viscosity.
熱溶融性インクを熱溶融性バインダーと共に構成する着
色剤としては、例えばカーボンブラック等の印刷或いは
他の記録方法に一般的に用いられる染顔料が全て用いら
れ、これらの染顔料は単独で、または二種以上混合して
用いられる０着色剤含有量は上記インク中に於いて１〜
４０％が好ましい。As the coloring agent constituting the heat-melting ink together with the heat-melting binder, all dyes and pigments commonly used in printing or other recording methods, such as carbon black, can be used, and these dyes and pigments may be used alone or in combination. The content of the coloring agent used in combination of two or more types is 1 to 1 in the above ink.
40% is preferred.
さて次に前記インクを記録ヘッド１内に充填して記録を
行った場合の動作について説明する。Next, the operation when the recording head 1 is filled with the ink and recording is performed will be described.
先ず外部のファクシミリやコンピュータ、或いはメモリ
ー等から画像信号を外部信号として入力する。この画像
信号はドライブコントローラ６に入り、この信号のうち
スタート信号が入ると第２図に於いて図示しないモータ
ーによってプラテンローラ１０が回転して記録媒体２を
矢印ａ方向に搬送する。First, an image signal is input as an external signal from an external facsimile, computer, memory, or the like. This image signal is input to the drive controller 6, and when a start signal among these signals is input, the platen roller 10 is rotated by a motor (not shown) in FIG. 2 to convey the recording medium 2 in the direction of arrow a.
次ニ前記ドライブコントローラ６は時系列的に入力する
画像信号を一旦内蔵し、■ライン或いは２ライン以上の
ラインメモリーに蓄積する。Next, the drive controller 6 temporarily stores the image signals inputted in time series, and stores them in the line memory (1) or two or more lines.
更に前記メモリーに蓄積した画像信号は記録へラド１に
よる書き込みに適応する信号に変換されて通電用電源５
に伝達され、該電源５からライン毎の書き込み電圧パル
スとして所定位置の電極１５間に印加される。Furthermore, the image signal stored in the memory is converted into a signal suitable for writing by the recording pad 1 and then sent to the energizing power source 5.
and is applied between the electrodes 15 at predetermined positions as a write voltage pulse for each line from the power source 5.
これによって電圧が印加された電極１５間（書き込みド
ツト部分）の発熱抵抗体１ｃに電流が流れて発熱し、該
発熱抵抗体近傍のインクが加熱されて低粘度化する。一
方電圧が印加されない電極１５間（非書き込みドツト部
分）の抵抗体ＩＣは発熱しないので該ドツト部分のイン
クは高粘性のままである。As a result, a current flows through the heating resistor 1c between the electrodes 15 to which the voltage is applied (the writing dot portion), generating heat, and the ink near the heating resistor is heated and its viscosity decreases. On the other hand, since the resistor IC between the electrodes 15 to which no voltage is applied (non-written dot portion) does not generate heat, the ink in the dot portion remains highly viscous.
このとき前記通電用電源５に伝達される信号が１ライン
中に書き込み信号（電圧印加信号）を含んでいるか否か
を前記ドライブコントローラ６のメモリ中で検索し、含
んでいる場合は通電用電源５に１ライン分の信号を送る
のと同時に、或いは前後してディフユーズコントローラ
７から空気圧印加パルスが発生し、ディフユージッンレ
ギエレータ８を介して記録ヘッドｌ内のインクに一定の
圧力が印加される。At this time, the memory of the drive controller 6 is searched to see whether or not the signal transmitted to the energizing power source 5 includes a write signal (voltage application signal) in one line, and if it does, the energizing power source Simultaneously with or before and after sending one line's worth of signals to 5, an air pressure application pulse is generated from the diffuser controller 7, and a constant pressure is applied to the ink in the recording head 1 via the diffuser regulator 8. is applied.
前記空気圧としては充填するインクの粘度、或（゛は溶
融時の粘度等にもよるが、５０１ｗ／−〜５ｋｇｗ／−
程度、好ましくは５０ｇ賀／−〜１ ｋｇｗ／−程度が
実用的である。The air pressure is 501w/- to 5kgw/-, depending on the viscosity of the ink to be filled, or the viscosity when melted, etc.
A practical amount is preferably about 50 g/- to 1 kgw/-.
前記インクの加熱に対応して圧力を印加すると、低粘度
化したインクがドツトｌｄから浸み出し、記録媒体２上
にインク像が転写されるもである。When pressure is applied in response to the heating of the ink, the ink with reduced viscosity oozes out from the dots ld, and an ink image is transferred onto the recording medium 2.
前記の如くインクへの熱印加と対応して圧力印加をする
ことによって、記録の高速化やインクの切れが良くなり
、更にはインクの供給や記録媒体２の選択を広範化する
ことが可能となる。By applying pressure in conjunction with applying heat to the ink as described above, it is possible to speed up recording, improve ink cutting, and widen the selection of ink supply and recording medium 2. Become.
即ち、前記記録に際してインクに対する加圧がない場合
は、記録時のインクはドツト１ｄを通過する際に充分低
粘度化されていなければならない。That is, if no pressure is applied to the ink during the recording, the ink must have a sufficiently low viscosity when it passes through the dots 1d.
従ってその為にインクを充分加熱する必要があり、相当
量の熱エネルギーを必要とすると共に、発熱体の冷却に
時間がかかるので記録速度が遅くなり、更には低粘度化
したインクがドツトから浸み出すと尾引きが生じ易い。Therefore, it is necessary to heat the ink sufficiently for this purpose, which requires a considerable amount of thermal energy, and it takes time to cool the heating element, which slows down the recording speed. If it protrudes, it tends to cause tailing.
しかし、本実施例のようにインクの加熱と対応してパル
ス状に圧力印加すると、発熱した発熱抵抗体近傍のイン
クがある程度低粘度化すれば、孔の中心付近まで充分低
粘度化しなくても記録媒体２上へのインク転移は円滑に
行われる。この為、インクに過度の加熱をする必要がな
くなり、高速記録が可能となるものである。However, when pressure is applied in a pulsed manner in response to the heating of the ink as in this example, if the viscosity of the ink near the heating resistor that generates heat decreases to some extent, even if the viscosity does not decrease sufficiently to the vicinity of the center of the hole. Ink transfer onto the recording medium 2 is performed smoothly. Therefore, there is no need to excessively heat the ink, and high-speed recording becomes possible.
また１ラインの記録毎に前記圧力印加を停止することで
、インクの表面張力によりインクと記録媒体２との接触
が速やかに断たれる為にインク切れもよくなる。Furthermore, by stopping the pressure application after each line is recorded, the contact between the ink and the recording medium 2 is quickly broken due to the surface tension of the ink, so that the ink runs out easily.
更には前記の如く加熱に対応して圧力印加すると、低粘
度化したインクのドツトｌｄよりの膨縮が適度になされ
る為に、例えば平滑度の低い記録媒体２にもインクが良
好に転写される。また、例えば所謂ホワイトボード等に
使用されるポリエチレン等のように表面張力が極めて小
さい記録媒体２に対しても、より良好に転写することが
可能となるものである。Furthermore, when pressure is applied in response to heating as described above, the ink with reduced viscosity expands and contracts appropriately from the dot ld, so that the ink can be transferred well even to the recording medium 2 with low smoothness, for example. Ru. Furthermore, it is possible to perform better transfer even to a recording medium 2 having an extremely low surface tension, such as polyethylene used in a so-called whiteboard.
ここで前記空気圧の印加は前記のように電極１ｂに電圧
が印加されるのと同期して同じパルス幅をもって印加し
てもよいが、実際には電極ｌｂに電圧が印加されてから
発熱抵抗体ＩＣで発生した熱がインクに伝導し、それに
よってインクが溶は出すまでに数齢〜敗十齢の時間を要
する場合が一般的である。従って前記電極１ｂへの電圧
印加と同時か、或いは少し遅れて圧力を印加し、更に１
ラインの電圧印加終了より少し遅れて前記圧力印加を解
除する構成にすることが好ましい。Here, the air pressure may be applied with the same pulse width in synchronization with the voltage being applied to the electrode 1b as described above, but in reality, the air pressure is applied to the heating resistor after the voltage is applied to the electrode 1b. Generally, it takes several to ten years for the heat generated by the IC to be conducted to the ink and for the ink to dissolve. Therefore, pressure is applied at the same time as the voltage is applied to the electrode 1b, or after a little delay, and
It is preferable to adopt a configuration in which the pressure application is canceled a little later than the end of voltage application to the line.
更に前記圧力印加のパルス幅を電極ｌｂへの電圧印加の
パルス幅よりも多少大きくとれば、記録媒体２上へのイ
ンクの転写が確実になる。Furthermore, if the pulse width of the pressure application is made somewhat larger than the pulse width of the voltage application to the electrode lb, the transfer of the ink onto the recording medium 2 can be ensured.
また逆に前記電圧印加パルス幅より圧力印加パルス幅を
短くすれば、ライン毎のインク切れをよくすることが出
来る。On the other hand, if the pressure application pulse width is made shorter than the voltage application pulse width, it is possible to improve ink depletion for each line.
前記圧力印加パルス幅を電圧印加パルス幅と異ならせる
場合も、前記したように電圧印加に対してインクが熔は
出すのが通常遅れる為に、電圧パルスの印加解除後に圧
力の印加を開始するようにしてもよい。Even when the pressure application pulse width is made to be different from the voltage application pulse width, as mentioned above, there is usually a delay in melting of the ink with respect to the application of voltage, so the application of pressure is started after the application of the voltage pulse is canceled. You may also do so.
更には！ライン中に電極ｌｂに電圧印加する信号を含ん
でいない場合、即ち非記録ラインの場合は、圧力印加を
しないように出来るのでミス転写を防止し、カブリ等を
効果的に防止することが出来る。Even more! If the line does not include a signal for applying a voltage to the electrode lb, that is, if it is a non-recording line, no pressure can be applied, so that erroneous transfer can be prevented and fogging etc. can be effectively prevented.
尚、前述の実施例では記録へラドｌ内のインクに対する
圧力印加手段として空気圧による構成を示したが、該手
段はインクに対して一様に圧力を印加し得るものであれ
ば前記空気圧に限定されるものでない、従って例えばイ
ンク通過孔付近にセラミックやポリフッ化ビニリデン等
からなるピエゾ振動子を配置し、これによって圧力印加
する構成等、他の種々の圧力印加手段を適用し得る。Incidentally, in the above-mentioned embodiment, a configuration using pneumatic pressure was shown as a means for applying pressure to the ink in the recording rad l, but the means is limited to the above-mentioned pneumatic pressure as long as it can uniformly apply pressure to the ink. Therefore, various other pressure applying means can be applied, such as a configuration in which a piezoelectric vibrator made of ceramic, polyvinylidene fluoride, etc. is arranged near the ink passage hole and pressure is applied by this.
また記録ヘッドｌとしては前述の固定式のものに限定さ
れるものでなく、例えば第４図に示すように構成したも
のでもよい、これは内部にインクを収納可能な筒状容器
の長手方向及び円周方向に夫々非接触に分割した複数の
電極１ｅ、ｉｆを設けると共に、該電極１ｅ、ｉｆ間に
発熱抵抗体１ｇを設け、該発熱抵抗体１ｇ位置に貫通孔
よりなるインク通過孔１ｈを設けて構成したものである
（特願昭６１−１６７４７号）、従って所定の電極１ｅ
。Further, the recording head l is not limited to the above-mentioned fixed type, but may be configured as shown in FIG. A plurality of electrodes 1e, if are divided in a non-contact manner in the circumferential direction, a heat generating resistor 1g is provided between the electrodes 1e, if, and an ink passage hole 1h consisting of a through hole is provided at the position of the heat generating resistor 1g. (Japanese Patent Application No. 61-16747), therefore, the predetermined electrode 1e
.
１ｒにブラシｌｉ、ｌ’ｊを介して電圧を印加すると、
両電極１ｅ、Ｉｆの交差部の発熱抵抗体１ｇが発熱する
ようになっている。When voltage is applied to 1r via brushes li and l'j,
The heating resistor 1g at the intersection of the electrodes 1e and If generates heat.
記録ヘッドｌを前記の如く構成すれば、該記録ヘッドｌ
は記録媒体２の移動に伴って回転するので、前記電極１
ｅ、Ｉｆへの電圧印加及びインクへの圧力印加によって
、マトリクス形成したインク通過孔１ｈからインクが浸
み出して転写記録がなされる場合に、インクの尾引きや
カブリの発生をより有効に防止することが可能となる。If the recording head l is configured as described above, the recording head l
rotates as the recording medium 2 moves, so the electrode 1 rotates as the recording medium 2 moves.
When ink oozes out from the matrix-formed ink passage holes 1h and transfer recording is performed by applying voltage to e and If and applying pressure to the ink, ink trailing and fogging can be more effectively prevented. It becomes possible to do so.
また記録媒体として表面にテフロン、ポリプロピレン等
の高分子膜をラミネートしたものを使用した場合は、手
動或いは自動的に画像を消去することも可能である為に
、繰り返しの記録が可能となる。Furthermore, when a recording medium whose surface is laminated with a polymer film such as Teflon or polypropylene is used, images can be erased manually or automatically, allowing repeated recording.
〈発明の効果〉
本発明は上述の如（、インク通過孔を有する容器内に収
納したインクを選択的に加熱して低粘度化すると共に、
該加熱に対応して圧力を印加して記録をする為に、従来
の感熱転写記録の如く消耗品た゛るインクリボン等を必
要とせず、また高速度でインクの尾引きやカブリ等がな
い鮮明な画像記録をすることが出来るものである。<Effects of the Invention> The present invention, as described above, selectively heats ink stored in a container having ink passage holes to lower its viscosity, and
Since recording is performed by applying pressure in response to the heating, there is no need for ink ribbons, which are consumables like in conventional thermal transfer recording, and the recording is clear at high speed without ink trailing or fogging. It is possible to record images.
第１図は本発明の一実施例に係る記録構成の概略説明図
、第２図は記録ヘッドの斜視説明図、第３図は記録ヘッ
ドの要部説明図、第４図は回転型記録ヘッドの説明図、
第５図は従来技術の説明図である。
１は記録ヘッド、ｌａは基体、ｌｂ、ｌｅ、１ｆは電極
、ｔｃ、ｔｇは発熱抵抗体、ｌｄ、ｌｈはインク通過孔
、ｌｉ、ｌｊはブラシ、Ｉｋは絶縁保！！膜、２は記録
媒体、３はコネクタ、４は信号ケーブル、５は通電用電
源、６はドライブコントローラ、７はディフユーズコン
トローラ、８はディフユージッンレギュレータ、９は加
圧用チューブ、１０はプラテンローラである。FIG. 1 is a schematic explanatory diagram of a recording configuration according to an embodiment of the present invention, FIG. 2 is a perspective explanatory diagram of a recording head, FIG. 3 is an explanatory diagram of main parts of the recording head, and FIG. 4 is a rotary recording head. An explanatory diagram of
FIG. 5 is an explanatory diagram of the prior art. 1 is the recording head, la is the base, lb, le, 1f are electrodes, tc, tg are heating resistors, ld, lh are ink passage holes, li, lj are brushes, Ik is insulation! ! 2 is a recording medium, 3 is a connector, 4 is a signal cable, 5 is a power supply, 6 is a drive controller, 7 is a diffuse controller, 8 is a diffuse regulator, 9 is a pressure tube, 10 is a platen It's Laura.
Claims (2)
複数のインク通過孔を設け、該インク通過孔或いはその
近傍を選択的に加熱する為の発熱手段を設け、該発熱手
段の発熱に対応して前記容器内に圧力を印加する為の加
圧手段を連結してなる記録ヘッド。(1) A container capable of storing ink inside is provided with a plurality of ink passing holes consisting of through holes, and a heat generating means for selectively heating the ink passing holes or the vicinity thereof is provided, and the heat generated by the heat generating means is provided. A recording head connected to pressure means for applying pressure into the container.
ンク通過孔を有する容器を記録媒体に接触させて相対的
に移動すると共に、前記インク通過孔或いはその近傍を
選択的に加熱して該インク通過孔付近のインクを低粘度
化せしめ、前記加熱周期と対応して前記容器内インクに
圧力を加え、前記低粘度化したインクをインク通過孔か
ら記録媒体に転写せしめることを特徴としてなる記録方
法。(2) A container containing ink and having an ink passage hole consisting of a large number of through holes is brought into contact with a recording medium and moved relative to the recording medium, and selectively heats the ink passage hole or its vicinity. The ink near the ink passage hole is made to have a low viscosity, and pressure is applied to the ink in the container in correspondence with the heating cycle, so that the ink with the reduced viscosity is transferred from the ink passage hole to the recording medium. Recording method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6063386A JPS62218148A (en) | 1986-03-20 | 1986-03-20 | Recording head and recording method using recording head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6063386A JPS62218148A (en) | 1986-03-20 | 1986-03-20 | Recording head and recording method using recording head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62218148A true JPS62218148A (en) | 1987-09-25 |
Family
ID=13147910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6063386A Pending JPS62218148A (en) | 1986-03-20 | 1986-03-20 | Recording head and recording method using recording head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62218148A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0600712A2 (en) * | 1992-11-30 | 1994-06-08 | Hewlett-Packard Company | Method and apparatus for ink transfer printing |
| US5481280A (en) * | 1992-11-30 | 1996-01-02 | Lam; Si-Ty | Color ink transfer printing |
| US5745128A (en) * | 1992-11-30 | 1998-04-28 | Hewlett Packard Company | Method and apparatus for ink transfer printing |
-
1986
- 1986-03-20 JP JP6063386A patent/JPS62218148A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0600712A2 (en) * | 1992-11-30 | 1994-06-08 | Hewlett-Packard Company | Method and apparatus for ink transfer printing |
| EP0600712A3 (en) * | 1992-11-30 | 1994-09-07 | Hewlett Packard Co | Method and apparatus for ink transfer printing. |
| US5481280A (en) * | 1992-11-30 | 1996-01-02 | Lam; Si-Ty | Color ink transfer printing |
| US5745128A (en) * | 1992-11-30 | 1998-04-28 | Hewlett Packard Company | Method and apparatus for ink transfer printing |
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