JPH03114844A - Thermal transfer printing device - Google Patents

Thermal transfer printing device

Info

Publication number
JPH03114844A
JPH03114844A JP25541889A JP25541889A JPH03114844A JP H03114844 A JPH03114844 A JP H03114844A JP 25541889 A JP25541889 A JP 25541889A JP 25541889 A JP25541889 A JP 25541889A JP H03114844 A JPH03114844 A JP H03114844A
Authority
JP
Japan
Prior art keywords
medium
transfer medium
transfer
fibers
heating element
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
Application number
JP25541889A
Other languages
Japanese (ja)
Inventor
Toshimasa Hirose
廣瀬 敏全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP25541889A priority Critical patent/JPH03114844A/en
Publication of JPH03114844A publication Critical patent/JPH03114844A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To improve transfer printing efficiencies by urging in advance a medium to be transferred in a width direction thereof as said medium is being moved before printing. CONSTITUTION:A transfer medium 6 and a medium to be transferred 8 are moved toward a heating element 2 of a thermal print head 1 and the medium 8 goes between a platen 4 and a press roller 9 before said medium is pressed against the heating element 2 by means of the platen 4 so that the medium 8 is pressed in its width direction, whereby fibers which are raised upward from the surface of the medium 8 are caused to lie down, with the result that smoothness of said surface is improved and then printing is conducted. And, even after transfer printing, restoring forces of fibers on the surface of the medium 8 are weak, whereby the fibers are prevented from rising up again, and the density of the fibers increases because the fibers lie down, accelerating thereby capillarity of molten ink. As a result, transfer printing efficiencies can be improved.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明はファクシミリやプリンタなどに用いられるサー
マルプリントヘッドを使用した熱転写印字装置に関する
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thermal transfer printing device using a thermal print head used in facsimiles, printers, and the like.

[従来の技術] サーマルプリントヘッドを使用した熱転写印字装置では
、転写媒体と被転写媒体とを重ねた状態にてプラテンに
よってサーマルプリントヘッド上に押しつけ、熱転写を
行なう。
[Prior Art] In a thermal transfer printing device using a thermal print head, a transfer medium and a transfer medium are overlapped and pressed onto the thermal print head by a platen to perform thermal transfer.

第6図は従来の熱転写印字装置を表わしたものである。FIG. 6 shows a conventional thermal transfer printing device.

被転写媒体8に印字を行うためのサーマルプリントヘッ
ド20は、その−主表面上で紙面垂直方向に発熱体14
が形成、配列されている。
A thermal print head 20 for printing on a transfer medium 8 has a heating element 14 on its main surface in a direction perpendicular to the plane of the paper.
are formed and arranged.

プラテン4は、サーマルプリントヘッド20に設けられ
ている発熱体14上に転写媒体6と被転写媒体8とを重
ねた状態にて押しつけるとともに、転写媒体6等を矢印
の方向に移送するものである。
The platen 4 presses the transfer medium 6 and the transfer medium 8 in an overlapping state onto the heating element 14 provided on the thermal print head 20, and also transports the transfer medium 6 etc. in the direction of the arrow. .

転写後の転写媒体6と被転写媒体8とは矢印方向に送ら
れ、転写媒体6はサーマルプリントヘッド20の発熱体
14が形成された表面に対してプラテン4と同じ側に設
けられたガイドlOを経て巻取り部12に巻き取られて
いく。
After the transfer, the transfer medium 6 and the medium 8 to be transferred are sent in the direction of the arrow, and the transfer medium 6 is moved by a guide lO provided on the same side as the platen 4 with respect to the surface on which the heating element 14 of the thermal print head 20 is formed. The film is then wound up by the winding section 12.

このような構成される熱転写印字装置は以下のように動
作する。
The thermal transfer printing device configured as described above operates as follows.

第7図に発熱体14付近をさらに拡大して示す。FIG. 7 shows a further enlarged view of the vicinity of the heating element 14.

転写媒体6はベース6a上にインク層6bが形成された
ものである。インク層6b上に被転写媒体8を重ね、プ
ラテン4によってベース6a側が発熱体14側になるよ
うにしてサーマルプリントヘッド20に押しつけ、印字
を行なうと、転写媒体6の加熱された部分のインク層6
bが溶融し、その溶融部分6cが被転写媒体8に転写さ
れる。
The transfer medium 6 has an ink layer 6b formed on a base 6a. When the transfer medium 8 is stacked on the ink layer 6b and pressed against the thermal print head 20 by the platen 4 with the base 6a side facing the heating element 14 side and printing is performed, the ink layer on the heated portion of the transfer medium 6 is 6
b is melted, and the melted portion 6c is transferred to the transfer medium 8.

[発明が解決しようとする課題] 上述したようなサーマルプリントヘッド20を用いた熱
転写印字装置において、文字等が転写される被転写媒体
8の表面は、プラテン4への供給前では第8図に示すよ
うに、被転写媒体8の繊維が上記表面に対してほぼ直角
方向に立ち上がった状態となっており、プラテン4へ供
給されプラテン4にてサーマルプリントヘッド20側へ
押圧されて初めて第9図に示すように上記繊維が被転写
媒体8の延在方向に寝た状態となり、上述したように転
写印字が行われる。
[Problems to be Solved by the Invention] In a thermal transfer printing device using the thermal print head 20 as described above, the surface of the transfer medium 8 onto which characters etc. are transferred is as shown in FIG. 8 before being supplied to the platen 4. As shown, the fibers of the transfer medium 8 are in a state of standing up in a direction substantially perpendicular to the surface, and are not shown in FIG. As shown in , the fibers are laid down in the extending direction of the transfer medium 8, and transfer printing is performed as described above.

ところが、被転写媒体8はプラテン4に押圧されている
わずかな期間のみ上記繊維が寝た状態に維持されるもの
であるから、印字後、被転写媒体8がプラテン4の抑圧
範囲より外れると上記繊維の復元力により上記繊維は再
び立ち上がってしまい、転写媒体6のインクの被転写媒
体8への転写効率が悪くなるという問題点があった。
However, since the fibers of the transfer medium 8 are kept in a flat state only for a short period of time when the transfer medium 8 is pressed against the platen 4, if the transfer medium 8 moves out of the suppression range of the platen 4 after printing, the above-mentioned There is a problem in that the fibers tend to stand up again due to the restoring force of the fibers, resulting in poor transfer efficiency of ink from the transfer medium 6 to the transfer medium 8.

本発明はこのような問題点を解決するためになされたも
ので、転写効率の良い熱転写印字装置を提供することを
目的とする。
The present invention was made to solve these problems, and an object of the present invention is to provide a thermal transfer printing device with high transfer efficiency.

[課題を解決するための手段] 本発明は、転写媒体等の移送方向側に位置する基板端面
に近接して形成される発熱体に転写媒体及び被転写媒体
がプラテンにより押圧され発熱体の発する熱により溶融
した転写媒体のインクを被転写媒体に転写することで印
字を行う熱転写印字装置において、 印字前の移送中にある被転写媒体を被転写媒体の厚さ方
向に予め押圧する押圧手段を備えたことを特徴とする。
[Means for Solving the Problems] The present invention provides a heating element that generates heat when a transfer medium and a medium to be transferred are pressed by a platen against a heating element that is formed close to the end surface of a substrate located on the transfer direction side of the transfer medium, etc. In a thermal transfer printing device that performs printing by transferring ink from a transfer medium melted by heat to a transfer medium, a pressing means is provided that presses the transfer medium in advance in the thickness direction of the transfer medium during transport before printing. It is characterized by having

[作用コ 押圧手段は、印字前の被転写媒体を被転写媒体の厚さ方
向に押圧することで被転写媒体の表面の繊維を表面方向
に押圧し、上記表面の平滑度を向上させ、転写印字効率
を向上させるように作用する。
[Operation] The pressing means presses the transfer medium before printing in the thickness direction of the transfer medium, thereby pressing the fibers on the surface of the transfer medium in the surface direction, improving the smoothness of the surface, and improving the transfer. Acts to improve printing efficiency.

[実施例] 本発明の熱転写印字装置の一実施例を示す第1図におい
て、サーマルプリントヘッドlは、いわゆる端面型サー
マルプリントヘッドと呼ばれるもので、発熱体2はサー
マルプリントヘッドlの基板3の一表面で一端面1aに
近接した位置に紙面垂直方向に配列されている。
[Embodiment] In FIG. 1 showing an embodiment of the thermal transfer printing device of the present invention, a thermal print head 1 is a so-called end-face type thermal print head, and a heating element 2 is attached to a substrate 3 of the thermal print head 1. They are arranged in a direction perpendicular to the plane of the paper at positions close to one end surface 1a on one surface.

即ち、第1図で紙面垂直方向に延在する端面1aは、第
2図においては、基板3の長手方向の端面である。この
端面1a側にコの字形の電極5の閉口側5cを近接させ
、かつ選択電極5a及び共通電極側電極5bを端面1a
に対して直角方向に延在させた、複数の電極5が基板3
の長手方向に形成される。又、上述したように、端面1
aに近接した位置、即ち電極5の上記閉口側5Cに近接
した位置に発熱体2が形成されている。したがって、発
熱体2は端面1aに近接することとなる。
That is, the end surface 1a extending in the direction perpendicular to the plane of the paper in FIG. 1 is the end surface of the substrate 3 in the longitudinal direction in FIG. The closed side 5c of the U-shaped electrode 5 is brought close to the end surface 1a, and the selection electrode 5a and the common electrode side electrode 5b are connected to the end surface 1a.
A plurality of electrodes 5 extend perpendicularly to the substrate 3.
formed in the longitudinal direction. Moreover, as mentioned above, the end surface 1
A heating element 2 is formed at a position close to a, that is, at a position close to the closed side 5C of the electrode 5. Therefore, the heating element 2 will be close to the end surface 1a.

さらに、それぞれの電極5の共通電極側電極5bは、端
面1aとは反対側の基板端面に沿って形成されている共
通電極7に接続される。
Further, the common electrode side electrode 5b of each electrode 5 is connected to a common electrode 7 formed along the end surface of the substrate opposite to the end surface 1a.

このような基板3が設けられたサーマルプリントヘッド
lには、従来同様、サーマルプリントヘッド1の上表面
側に転写媒体6、プラテン4側に被転写媒体8を配置し
、発熱体2の上表面の垂直方向にプラテン4の回転中心
を設置した状態で、転写媒体6及び被転写媒体8がプラ
テン4にて押圧される。
In the thermal print head l provided with such a substrate 3, the transfer medium 6 is placed on the upper surface side of the thermal print head 1, the transfer medium 8 is placed on the platen 4 side, and the upper surface of the heating element 2 is placed as in the conventional case. The transfer medium 6 and the transfer medium 8 are pressed by the platen 4 with the rotation center of the platen 4 set in the vertical direction.

さらに、被転写媒体8がプラテン4に押圧される前の移
送部分において、プラテン4の外周面との間に被転写媒
体8を挟み押圧する押圧ローラ9が、プラテン4と発熱
体2との抑圧部17に近接した位置に設けられる。この
押圧ローラ9は、紙面垂直方向に被転写媒体8の幅より
幾分長く延在する円柱形状であり、プラテン4の回転及
び被転写媒体8の移送に応じて円柱中心を中心とし回転
するものである。
Further, in the transfer portion before the transfer medium 8 is pressed against the platen 4, a pressure roller 9 that pinches and presses the transfer medium 8 between the outer peripheral surface of the platen 4 suppresses the platen 4 and the heating element 2. It is provided at a position close to the section 17. The pressure roller 9 has a cylindrical shape extending slightly longer than the width of the transfer medium 8 in the direction perpendicular to the plane of the paper, and rotates about the center of the cylinder in accordance with the rotation of the platen 4 and the transfer of the transfer medium 8. It is.

又、転写後において、転写媒体6と被転写媒体8とはす
ぐに分離するように、サーマルプリントヘッドlの上表
面を境とし、転写媒体6と被転写媒体8とは逆方向へ移
送される。
Further, after the transfer, the transfer medium 6 and the transfer medium 8 are transported in opposite directions, with the upper surface of the thermal print head l serving as a boundary, so that the transfer medium 6 and the transfer medium 8 are immediately separated. .

このように構成される熱転写印字装置の動作を以下に説
明する。
The operation of the thermal transfer printing device configured as described above will be explained below.

転写媒体6及び被転写媒体8は、それぞれサーマルプリ
ントヘッドlの発熱体2へ向かい移送されるが、被転写
媒体8は、発熱体2ヘプラテン4にて押圧される前に、
プラテン4と押圧ローラ9との間に挟まれ、被転写媒体
8の厚さ方向に押圧ローラ9にてプラテン4側へ押圧さ
れる。したがって、この時点で第8図に示すように被転
写媒体8の表面の立ち上がった繊維は、第9図に示すよ
うに寝た状態となり、被転写媒体8の表面の平滑度は向
上する。そして被転写媒体8は発熱体2へ供給されるが
、押圧ローラ9と、プラテン4と発熱体2との押圧面と
を接近させて設置しているので、被転写媒体8の表面の
平滑度は向上した状態で発熱体2部分へ供給され、さら
に再びプラテン4にてサーマルプリントヘッドl側に押
圧されて転写印字が行われる。
The transfer medium 6 and the medium to be transferred 8 are each transported toward the heating element 2 of the thermal print head l, but before the medium to be transferred 8 is pressed against the heating element 2 by the platen 4,
It is sandwiched between the platen 4 and the pressure roller 9, and is pressed toward the platen 4 by the pressure roller 9 in the thickness direction of the transfer medium 8. Therefore, at this point, the raised fibers on the surface of the transfer medium 8 as shown in FIG. 8 become in a lying state as shown in FIG. 9, and the smoothness of the surface of the transfer medium 8 is improved. The medium 8 to be transferred is then supplied to the heating element 2, but since the pressing roller 9 and the pressing surfaces of the platen 4 and the heating element 2 are placed close to each other, the smoothness of the surface of the medium 8 to be transferred can be improved. is supplied to the heating element 2 portion in an improved state, and is again pressed against the thermal print head l side by the platen 4 to perform transfer printing.

したがって、転写印字後も被転写媒体8の表面の繊維の
復元力も弱くなり、再び繊維が立ち上がることを抑える
ことができ転写印字効率を向上させることができる。又
、表面の繊維が寝ることで、繊維の密度が向上し溶融し
たインクの毛細管現象を促進することとなり、さらに転
写印字効率を上昇させることに寄与する。
Therefore, even after transfer printing, the restoring force of the fibers on the surface of the transfer medium 8 is weakened, and it is possible to suppress the fibers from rising again, thereby improving the transfer printing efficiency. Furthermore, since the fibers on the surface are laid down, the density of the fibers is improved and the capillarity of the molten ink is promoted, which further contributes to increasing the transfer printing efficiency.

又、端面型サーマルプリントヘッドを使用したことより
、転写後、転写媒体6及び被転写媒体8がプラテン4に
て基板3の上表面に押圧されている区間が短くなり、発
熱体2の熱により転写媒体6の溶融したインクの熱が基
板3側へ放熱されることを抑えることができ、又、転写
後すぐに転写媒体6と被転写媒体8とを分離することが
可能となることより、さらに転写印字効率を向上させる
ことができる。
In addition, since the edge-type thermal print head is used, after the transfer, the area in which the transfer medium 6 and the transfer medium 8 are pressed against the upper surface of the substrate 3 by the platen 4 is shortened, and due to the heat of the heating element 2. It is possible to suppress the heat of the melted ink on the transfer medium 6 from being radiated to the substrate 3 side, and it is also possible to separate the transfer medium 6 and the medium to be transferred 8 immediately after transfer. Furthermore, transfer printing efficiency can be improved.

尚、押圧ローラ9は上述した位置に設置するのがより好
ましいが、第3図に示すように、被転写媒体8を左右よ
り圧接する、円柱状で回転可能な二つのローラ15及び
16をプラテン4より離れて設置しても良い。又、ロー
ラ15あるいは16のいずれかは円柱状でなくても良く
、要は被転写媒体8の表面を被転写媒体8の厚さ方向に
押圧するものであれば良い。
Although it is more preferable to install the pressure roller 9 in the above-mentioned position, as shown in FIG. It may be installed further apart than 4. Further, either the roller 15 or 16 does not have to be cylindrical, and it is sufficient if it presses the surface of the transfer medium 8 in the thickness direction of the transfer medium 8.

又、サーマルプリントヘッドlの基板3上に形成される
発熱体2は第2図に示すものに限らず、第4図に示すよ
うに、コの字型の閉口部5Cのすべてを発熱体2とした
ものや、第5図に示すように選択電極5aと共通電極側
電極5bとに挟まれた領域の端部で画電極に接続される
方形状の発熱体であっても良い。
Further, the heating element 2 formed on the substrate 3 of the thermal print head l is not limited to the one shown in FIG. 2, but as shown in FIG. Alternatively, as shown in FIG. 5, it may be a rectangular heating element connected to the picture electrode at the end of the region sandwiched between the selection electrode 5a and the common electrode side electrode 5b.

[発明の効果] 以上詳述したように本発明によれば、押圧手段により印
字前の被転写媒体を被転写媒体の厚さ方向に押圧するこ
とで被転写媒体の表面の平滑度が向上することより、転
写印字効率が向上した熱転写印字装置を提供することが
できる。
[Effects of the Invention] As detailed above, according to the present invention, the smoothness of the surface of the transfer medium is improved by pressing the transfer medium before printing in the thickness direction of the transfer medium using the pressing means. Therefore, it is possible to provide a thermal transfer printing device with improved transfer printing efficiency.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の熱転写印字装置の一実施例における構
成を示す側面図、第2図は第1図に示すサーマルプリン
トヘッドの平面図、第3図は本発明の熱転写印字装置の
他の実施例における構成を示す側面図、第4図及び第5
図はサーマルプリントヘッドに形成される発熱体の他の
例を示す平面図、第6図は従来の熱転写印字装置の構成
を示す側面図、第7図は熱転写印字装置の転写動作を示
す断面図、第8図は押圧する前の被転写媒体の表面にお
ける繊維の状態を示す図、第9図は抑圧後の被転写媒体
の表面における繊維の状態を示す図である。 l・・・サーマルプリントヘッド、2・・・発熱体、4
・・・プラテン、6・・・転写媒体、8・・・被転写媒
体、9・・・押圧ローラ。
FIG. 1 is a side view showing the configuration of an embodiment of the thermal transfer printing device of the present invention, FIG. 2 is a plan view of the thermal print head shown in FIG. 1, and FIG. Side view showing the configuration in the embodiment, FIGS. 4 and 5
The figure is a plan view showing another example of a heating element formed in a thermal print head, FIG. 6 is a side view showing the configuration of a conventional thermal transfer printing device, and FIG. 7 is a sectional view showing the transfer operation of the thermal transfer printing device. , FIG. 8 is a diagram showing the state of the fibers on the surface of the transfer medium before being pressed, and FIG. 9 is a diagram showing the state of the fibers on the surface of the transfer medium after being pressed. l... Thermal print head, 2... Heating element, 4
. . . platen, 6 . . . transfer medium, 8 . . . transfer medium, 9 . . . press roller.

Claims (1)

【特許請求の範囲】[Claims] (1)転写媒体等の移送方向側に位置する基板端面に近
接して形成される発熱体に転写媒体及び被転写媒体がプ
ラテンにより押圧され発熱体の発する熱により溶融した
転写媒体のインクを被転写媒体に転写することで印字を
行う熱転写印字装置において、 印字前の移送中にある被転写媒体を被転写媒体の厚さ方
向に予め押圧する押圧手段を備えたことを特徴とする熱
転写印字装置。
(1) The transfer medium and the medium to be transferred are pressed by the platen against the heating element formed close to the end surface of the substrate located on the transfer direction side of the transfer medium, etc., and the ink of the transfer medium is melted by the heat generated by the heating element. A thermal transfer printing device that performs printing by transferring to a transfer medium, the thermal transfer printing device comprising a pressing means that presses the transfer medium in advance in the thickness direction of the transfer medium during transport before printing. .
JP25541889A 1989-09-29 1989-09-29 Thermal transfer printing device Pending JPH03114844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25541889A JPH03114844A (en) 1989-09-29 1989-09-29 Thermal transfer printing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25541889A JPH03114844A (en) 1989-09-29 1989-09-29 Thermal transfer printing device

Publications (1)

Publication Number Publication Date
JPH03114844A true JPH03114844A (en) 1991-05-16

Family

ID=17278486

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25541889A Pending JPH03114844A (en) 1989-09-29 1989-09-29 Thermal transfer printing device

Country Status (1)

Country Link
JP (1) JPH03114844A (en)

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