JPS6158768A - Reciprocally printing mechanism in thermal transfer printer - Google Patents

Reciprocally printing mechanism in thermal transfer printer

Info

Publication number
JPS6158768A
JPS6158768A JP18193084A JP18193084A JPS6158768A JP S6158768 A JPS6158768 A JP S6158768A JP 18193084 A JP18193084 A JP 18193084A JP 18193084 A JP18193084 A JP 18193084A JP S6158768 A JPS6158768 A JP S6158768A
Authority
JP
Japan
Prior art keywords
printing
ink ribbon
platen
ribbon
carriage
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.)
Granted
Application number
JP18193084A
Other languages
Japanese (ja)
Other versions
JPH0430912B2 (en
Inventor
Ryuji Kiura
木浦 龍二
Shigeki Sakakura
阪倉 重喜
Seiji Wachi
和知 省二
Hiroyuki Okitsu
博之 沖津
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP18193084A priority Critical patent/JPS6158768A/en
Publication of JPS6158768A publication Critical patent/JPS6158768A/en
Publication of JPH0430912B2 publication Critical patent/JPH0430912B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J19/00Character- or line-spacing mechanisms
    • B41J19/14Character- or line-spacing mechanisms with means for effecting line or character spacing in either direction
    • B41J19/142Character- or line-spacing mechanisms with means for effecting line or character spacing in either direction with a reciprocating print head printing in both directions across the paper width
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/54Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements

Abstract

PURPOSE:To enable a printer to perform printing in both right and left directions in a thermal transfer printer by achieving the printing in two directions by two printing heads separately provided transferring ink ribbons in the reverse direction to the moving direction of the head. CONSTITUTION:Two sets of printing parts 15, 16 are provided on the carriage reciprocating toward right and left. Printing heads 17, 18 capable of advancing and retracting independently with regard to a platen 3, ink ribbon feeding reels 26, 27 and ink ribbon winding reels 20, 25, etc. are provided at each printing parts 15 and 16. When the carriage is moved in left direction, one printing part 15 is used, whereby the printing is achieved, and then the carriage is moved in right direction, another printing part 16 is used. Then, the ink ribbons 19, 24 are transferred in the reverse direction with regard to the moving direction of printing heads 17, 18.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はインクリボンのインクを普通紙である情報記録
用紙に熱転写する熱転写プリンタにおいて往復印字を可
能とする印字機構に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printing mechanism that enables reciprocating printing in a thermal transfer printer that thermally transfers ink from an ink ribbon onto information recording paper, which is plain paper.

〔従来の技術〕[Conventional technology]

一般に、従来の熱転写プリンタの基本的構成は第8図に
示すようになっている。
Generally, the basic configuration of a conventional thermal transfer printer is shown in FIG.

すなわち、プリンタ1は、記録用紙2を改行の度に上方
へ巻き上げてゆくプラテン3と、インクリボンを収納し
たリボンカセット4と、プラテン3に対し接近および退
避が可能で印字を行う際には上記記録用紙2にインクリ
ボンを押圧して印字を行う印字へラド5、および該印字
へラド5と上記リボンカセット4をプラテン3に対して
左右両方向に所定範囲内で往g、M勤させるキャリッジ
8を有している。このキャリッジ6は、一端側がガイド
レール7に摺動自在に係合し、他端側が駆動装置(図示
せず)によって左右両方向に移動するタイミングベルト
8に固定され、上記印字へラド5およびリボンカセット
4を移動させるものである。また、第6図生得号8はリ
ボンカセット4に収納されたインクリボンを移送させる
ためのリボン駆動軸であり、このリボン駆動軸9により
、インクリボンはプラテン3に対する相対速度がゼロと
なるように、即ち、キャリッジ6の移動速度と略同−速
度で、且つ、印字力向とは逆方向に移送されることにな
る。一方、上記リボンカセット4内においてインクリボ
ン10は、第7図および第8図に示すように未使用状態
のものがリール11に巻かれており、該リール11がイ
ンクリボン1゜を支持する軸ビン12に回転自在に軸支
され、他方、印字へラド5を通ってインクを記録用紙に
転写した使用済のインクリボン1oは、上記リポ/駆動
軸3に軸支された巻取リール13に巻き取られるように
なっている。尚、第7図中14はインクリボンのihき
を規制して、印字へラド5を通過させるための案内ビン
である。
That is, the printer 1 has a platen 3 that winds up the recording paper 2 upward at each line feed, a ribbon cassette 4 that stores an ink ribbon, and a ribbon cassette 4 that can approach and retreat from the platen 3. A printing pad 5 that presses an ink ribbon onto the recording paper 2 to print, and a carriage 8 that moves the printing pad 5 and the ribbon cassette 4 forward and backward within a predetermined range in both left and right directions with respect to the platen 3. have. This carriage 6 has one end slidably engaged with a guide rail 7, and the other end fixed to a timing belt 8 that moves in both left and right directions by a drive device (not shown), and is connected to the printing pad 5 and the ribbon cassette. 4 is moved. Further, reference number 8 in FIG. 6 is a ribbon drive shaft for transporting the ink ribbon stored in the ribbon cassette 4, and this ribbon drive shaft 9 allows the ink ribbon to have a relative speed of zero with respect to the platen 3. That is, the paper is transported at substantially the same speed as the moving speed of the carriage 6, and in a direction opposite to the printing force direction. On the other hand, in the ribbon cassette 4, the unused ink ribbon 10 is wound around a reel 11 as shown in FIGS. 7 and 8, and the reel 11 is a shaft supporting the ink ribbon 1°. The used ink ribbon 1o, which is rotatably supported by the bottle 12 and whose ink has been transferred to the recording paper through the printing pad 5, is transferred to the take-up reel 13 which is supported by the lipo/drive shaft 3. It is designed to be rolled up. Incidentally, numeral 14 in FIG. 7 is a guide bottle for regulating the ink ribbon's ink ribbon and for allowing the pad 5 to pass through to printing.

このように構成された熱転写プリンタの印字機構におい
ては、キャリッジ8がプラテン3に対し右方向へ移動す
る往動作の時に印字を行うのが一般であり、キャリッジ
6が右方向への移動を開始する時に印字へラド5がプラ
テン3方向に接近して記録用紙2にインクリボン10を
押圧し、印字ヘット5の移動およびインクリボン【Oの
移動によって記録用紙2上に印字がなされるものである
In the printing mechanism of a thermal transfer printer configured as described above, printing is generally performed during the forward motion in which the carriage 8 moves to the right with respect to the platen 3, and when the carriage 6 starts moving to the right. At the time of printing, the print head 5 approaches the platen 3 and presses the ink ribbon 10 against the recording paper 2, and printing is performed on the recording paper 2 by the movement of the print head 5 and the movement of the ink ribbon [O].

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかしながら、上記従来の印字機構にあっては、印字ヘ
ッド5がプラテン3に対して左方向に移動する復動作を
行うときには、記録用紙2への印字ができないという不
具合がある。
However, the conventional printing mechanism described above has a problem in that it is not possible to print on the recording paper 2 when the print head 5 performs a backward movement of moving leftward with respect to the platen 3.

すなわち、印字へ7ド5は印字を開始すべき左側所定位
置から印字を始めて、右側方向へ移動してゆき、所定数
の文字を印字した′右側位置から再び印字を開始すべき
左側所定位置へ戻る復動作を行うが、印字へラド5がプ
ラテン3に対して右方向へ移動する往動作を行って印字
をしている間に、上記インクリボンlOは第8図に示す
ように印字へ一7ド5の記録面R上をプラテン3に対し
て左方向に、且つ、印字へラド5の移動速度と同一速度
で移送される。こうすることにより、記録用紙2と印字
ヘッド5の記録面R上を通過するインクリボンlOとの
相対速度はゼロとなって、記録用紙2上にきれいな印字
がなされ、記録用紙2がインクで汚れることがなくなる
ものである。
In other words, 7 to 5 starts printing from a predetermined position on the left where printing should start, moves to the right, and returns to a predetermined left position where printing should start again from the right position where a predetermined number of characters have been printed. A backward movement is performed, but while printing is being performed by performing a forward movement in which the print head 5 moves to the right with respect to the platen 3, the ink ribbon IO is moved back to the print position as shown in FIG. 7 is transported on the recording surface R of the card 5 in the left direction with respect to the platen 3 and at the same speed as the moving speed of the card 5 toward printing. By doing this, the relative speed between the recording paper 2 and the ink ribbon lO passing over the recording surface R of the print head 5 becomes zero, and a clean print is made on the recording paper 2, and the recording paper 2 is not smeared with ink. Things will disappear.

ところで、印字へラド5が左側所定位置へ戻る復動作を
行うときに記録用紙2上へ印字を行おうとすると、イン
クリボンlOを往動作の場合とは逆方向、すなわち右方
向へ移送しなければならない、しかしインクリボンlO
を右方向へ移送すると、記録用紙2とインクリボン1G
の相対速度をゼロとすることは可能となるものの、印字
へ7ド5の記録面R上にはすでに印字へラド5の往動作
によってインクが抜けてしまったインクリボン10が戻
って来てしまうため、結局印字はできないことになる。
By the way, if you try to print on the recording paper 2 when the print head 5 performs a backward movement to return to the left-hand predetermined position, the ink ribbon 10 must be moved in the opposite direction to the forward movement, that is, to the right. No, but the ink ribbon lO
When the is moved to the right, recording paper 2 and ink ribbon 1G
Although it is possible to make the relative speed of the ink ribbon 10 zero, the ink ribbon 10 from which the ink has already been drained by the forward movement of the printing pad 5 returns to the recording surface R of the printing pad 5. Therefore, printing will not be possible after all.

他方、印字へラド5の復動作時にインクリボンlOをそ
のまま左方向に移送し続けて印字を行おうとすると、記
録用紙2とインクリボンlOがこすれ、記録用紙2はイ
ンクで汚れてしまい印字はできないことになる。このよ
うに、熱転写プリンタは、インクリボンIQを印字へ7
ド5の移動方向とは逆方向に移送しなければならず、し
かもインクリボンは再度の使用ができないワンタイムの
ものであるため、従来の印字機構にあっては往復印字を
行うことはできないものであった。
On the other hand, if the ink ribbon 1O continues to be moved to the left during the return operation of the print head 5, the ink ribbon 10 will rub against the recording paper 2, and the recording paper 2 will be stained with ink, making it impossible to print. It turns out. In this way, the thermal transfer printer transfers the ink ribbon IQ to printing.
Since the ink ribbon must be transferred in the opposite direction to the direction of movement of the card 5, and the ink ribbon is a one-time item that cannot be used again, conventional printing mechanisms cannot perform reciprocating printing. Met.

〔問題点を解決するための手段〕[Means for solving problems]

本発呪は上記問題点に鑑みてなされたものであって、往
復印字が可能な印字機構を提供するものであり、その手
段は、プラテンに対して独立して進退動可能な2個の印
字へラドを有し、左方向印字時には一方の印字ヘッドを
プラテンに押し付け、右方向移動時には他方の印字へラ
ドをプラテンに押し付けて印字するとともに、各印字時
には印字ヘッドを通過するインクリボンを印字ヘッドの
移動方向とは逆方向に移送されることを特徴とする熱転
写プリンタにおける往復印字機構によってなされる。
This spell was created in view of the above problems, and provides a printing mechanism that is capable of reciprocating printing, and its means are two printing units that can move forward and backward independently with respect to the platen. When printing in the left direction, one print head is pressed against the platen, and when moving in the right direction, the other print head is pressed against the platen to print, and the ink ribbon passes through the print head during each printing. This is done by a reciprocating printing mechanism in a thermal transfer printer, which is characterized by being transported in a direction opposite to the direction of movement of the printer.

〔作用〕[Effect]

本発明は以上のような構成を有する技術的子役であるか
ら、印字へラドが右方向へ移動する往動作の時には、一
方の印字へットを用いて。
Since the present invention is a technical accessory having the above-mentioned configuration, one printing head is used during the forward movement in which the printing head moves to the right.

その記録面上をインクリボンがプラテンとの相対速度が
ゼロとなるように通過させ、逆に印字ヘッドが左方向に
移動する復動作の時には、他方の印字ヘッドを用いてそ
の記録面上をインクリボンがプラテンとの相対速度がゼ
ロとなるように通過させることにより、プラテンとに静
止している記録用紙上に左右両方向からの往復印字をさ
せることができるものである。
The ink ribbon passes over the recording surface so that the relative speed with the platen is zero, and conversely, during the return operation in which the print head moves to the left, the other print head is used to pass the ink on the recording surface. By passing the ribbon so that its relative speed with the platen is zero, it is possible to perform reciprocating printing from both left and right directions on a recording sheet that is stationary relative to the platen.

〔実施例〕〔Example〕

以下、添付図面に基づいて末完り1の実施例を説明する
Embodiment 1 of the present invention will be described below based on the accompanying drawings.

第1図ないし第3図は本発明の第一の実施例に係る往復
印字機構を示すものである。
1 to 3 show a reciprocating printing mechanism according to a first embodiment of the present invention.

この印字機構は、往復印字を可能とするべく、第1図に
示すように、2つのリボンカセット、即ち正印字リボン
カセット18および逆印字リボンカセット15をその内
部に有するリボンカセットCと、2つの印字ヘッド、即
ち正印字用ヘッド18および逆印字用へラド17を有す
るものであり、これらのリボンカセット15.16およ
び印字ヘッド17.18は第3図に示すように、従来の
印字機構と同様、レール7および駆lJh装置(図示せ
ず)によって駆動するタイミングベルト8によって往復
運動をするキャリフジ14に運ばれてプラテン3に対し
て左右両方向への往復運動をするものである。
In order to enable reciprocating printing, this printing mechanism has two ribbon cassettes, namely a ribbon cassette C having a normal printing ribbon cassette 18 and a reverse printing ribbon cassette 15, as shown in FIG. It has a print head, that is, a head 18 for normal printing and a head 17 for reverse printing, and these ribbon cassettes 15, 16 and print heads 17, 18 are similar to the conventional printing mechanism, as shown in FIG. , a rail 7 and a timing belt 8 driven by a driving device (not shown), which carries the carrier 14 to a carriage 14 that reciprocates, and reciprocates in both left and right directions with respect to the platen 3.

そして、上記正印字用へラド18は、通常の場合、キャ
リ、ジ14が右方向へ移動する往動作の時にプラテン3
方向へ接近して印字を行い、キャリッジ14が左方向へ
移動する復動作の時にはプラテン3から離れるものであ
り、他方、上記逆印字用へラド17はキャリッジ14が
往動作をする時にプラテン3から敲れており、キャリッ
ジ14が復動作をするときにプラテン3方向に接近して
印字を行うものである。
Normally, the correct printing pad 18 is moved to the platen 3 during the forward movement in which the carrier and the printer 14 move to the right.
When the carriage 14 moves toward the left to perform printing, it moves away from the platen 3. On the other hand, the reverse printing pad 17 moves away from the platen 3 when the carriage 14 moves toward the left. When the carriage 14 makes a backward movement, it approaches the platen 3 direction and performs printing.

一方、第1図に示すように、上記正印字リボンカセット
I[lは、正印字用インクリボン24を収納するもので
あり、該正印字用インクリボン24は予めリール27に
巻かれており、該リール27は軸ピン27aに回転自在
に軸支されている。そして、正印字用インクリボン24
は正印字用ヘッド18の記録面上を通って、巻取り−ル
25に巻き取られる。すなわち、該巻取リール25は、
第3図に示すキャリッジ14の正印字用リボン駆動軸2
8に連動して、キャリッジ14が往動作をするときに第
1図反時計方向に回転し、正印字t\ツド18の記録面
上においてインクリボン24とプラテン3との相対速度
をゼロとして (プラテン3に対して左方向で且つキャ
リ7ジ14の移動速度と同一速度で移動させ)、記録用
紙2上にインクを熱転写させ、転写を完了したインクリ
ボン24を巻き取ってゆくものである。
On the other hand, as shown in FIG. 1, the above-mentioned normal printing ribbon cassette I[l is for storing an ink ribbon 24 for normal printing, and the ink ribbon 24 for normal printing is wound on a reel 27 in advance. The reel 27 is rotatably supported by a shaft pin 27a. Then, the ink ribbon 24 for normal printing
passes over the recording surface of the normal printing head 18 and is wound up on the winding wheel 25. That is, the take-up reel 25 is
Ribbon drive shaft 2 for normal printing of the carriage 14 shown in FIG.
8, when the carriage 14 moves forward, it rotates counterclockwise in FIG. The ink ribbon 24 is moved to the left with respect to the platen 3 and at the same speed as the moving speed of the carriage 14) to thermally transfer ink onto the recording paper 2, and the ink ribbon 24 that has completed the transfer is wound up.

他方、上記逆印字リボン力セツ)+5は、逆印字用イン
クリボン19を収納するものであり、該逆印字用インク
リボン18は予めリール22に巻かれており、該リール
22は軸ビン22aに回転自在に軸支されている。そし
て、逆印字用インクリボン19は、逆印字用へラド17
の記録面上を通って巻取り−ル20に巻き取られる。す
なわち、鎖巻取り一ル20は、第3図に示すキャリ、ジ
14の逆印字用リボン駆動i21に連動して、キャリ7
ジ14が復動作をする時に第1図時計方向に回転し、逆
印字へ、ド17の記録面上においてインクリボン19と
プラテン3との相対速度をゼロとして (プラテン3に
対して右方向で、且つキャリ7ジ14の移動速度と同一
速度で移動させ)、記録用紙2上にインクを熱転写させ
、転写を完了したインクリボン13を巻取ってゆくもの
である。
On the other hand, the above-mentioned reverse printing ribbon force set +5 is for storing an ink ribbon 19 for reverse printing, and the ink ribbon 18 for reverse printing is wound on a reel 22 in advance, and the reel 22 is wound on a shaft bin 22a. It is rotatably supported. The ink ribbon 19 for reverse printing is connected to the ink ribbon 17 for reverse printing.
It passes over the recording surface of the recording surface and is wound onto the winding wheel 20. That is, the chain winder 20 moves the carrier 7 in conjunction with the reverse printing ribbon drive i21 of the carrier 14 shown in FIG.
When the ink ribbon 14 makes a return operation, it rotates clockwise in Figure 1, and reverse printing occurs.The relative speed between the ink ribbon 19 and the platen 3 is set to zero on the recording surface of the do 17 (in the right direction with respect to the platen 3). , and at the same speed as the moving speed of the carriage 14), the ink is thermally transferred onto the recording paper 2, and the ink ribbon 13 after the transfer is completed is wound up.

か一方のインクリボンが全て使用されてしまったことを
検出したときには、他方の印字機構によって一方向印字
を行わせるものである。
When it is detected that one of the ink ribbons is completely used, the other printing mechanism is used to perform unidirectional printing.

従って、この実施例に係る印字機構によれば、キャリッ
ジ目が右方向へ動く往動作時には、正印字用ヘッドlB
および正印字用インクリボン24によって1文字が左側
から右側に向ってプリントされる正印字が行われ、キャ
リッジ14が左方向へ動く復動作時には、逆印字用ヘッ
ド17および逆印字用インクリボン18によって、文字
が右側から左側に向ってプリントされる逆印字を行うこ
とができる。また、このように往復印字を行ってどちら
か一方のインクリボンを使いきってしまった時には、他
方のインクリボンを用いて一方向印字(正印字又は複印
字のいずれか一方)を行い、両方のインクリボンを使い
きることによってインクリボンを使いきる周期を延長さ
せてインクリボン交換の手間を省くことができるもので
ある。
Therefore, according to the printing mechanism according to this embodiment, during the forward movement in which the carriage eye moves to the right, the normal printing head lB
Normal printing in which one character is printed from the left side to the right side is performed by the ink ribbon 24 for normal printing, and when the carriage 14 moves back to the left, the head 17 for reverse printing and the ink ribbon 18 for reverse printing perform the normal printing. , it is possible to perform reverse printing in which characters are printed from the right side to the left side. In addition, when performing back-and-forth printing in this way and one of the ink ribbons is used up, use the other ink ribbon to perform unidirectional printing (either normal printing or double printing). By using up the ink ribbon, the period in which the ink ribbon can be used up can be extended and the effort of replacing the ink ribbon can be saved.

第4図は本発明の第二の実施例に係る印字機構を示すも
のであり、正印字用へラド30、逆印字用へラド31お
よびリボンカセット32からなっている。これら正逆印
字ヘッド30.31およびリボンカセット32は上記実
施例と同様、キャリッジによってプラテンに対し左右両
方向に所定範囲内で往復運動を行うものである。また、
上記正逆両印字ヘッド30.31も前記第一の実施例と
同様に構成されており、正印字用へラド30は、キャリ
ッジがプラテンに対して右方向へ移動する往動作の時に
プラテンに対して接近し、プラテンに巻かれた記録用紙
に印字を行い、キャリッジが左方向へ移動する復動作の
時にはプラテンから離れるものであり、他方、逆印字用
へラド31は、キャリッジがプラテンに対して右方向へ
移動する往動作の時にはプラテンから離れ、キャリッジ
が左方向へ移動する復動作の時にプラテンに接近して記
録用紙に印字を行うものである。
FIG. 4 shows a printing mechanism according to a second embodiment of the present invention, which is composed of a head 30 for normal printing, a head 31 for reverse printing, and a ribbon cassette 32. These forward/reverse print heads 30, 31 and ribbon cassette 32 are reciprocated within a predetermined range in both left and right directions with respect to the platen by a carriage, as in the above embodiment. Also,
The above-mentioned forward and reverse printing heads 30 and 31 are also constructed in the same manner as in the first embodiment, and the normal printing head 30 is moved against the platen during forward movement in which the carriage moves to the right with respect to the platen. The carriage approaches the platen, prints on the recording paper wound around the platen, and moves away from the platen during the return movement when the carriage moves to the left. During a forward movement in which the carriage moves to the right, it moves away from the platen, and during a backward movement in which the carriage moves to the left, it approaches the platen and prints on the recording paper.

一方、上記リボンカセット32はインクリボン33を収
納するものであり、該インクリボン33は第5図に示す
ように予めリール34に巻かれてl、%るものであり、
該リール34がリボンカセット32の上蓋35に設けら
れた軸ピン3Bに回転自在に係合されると共にストッパ
37によって脱落を防止されている。また、インクリボ
ン33は案内ピン38およびリボン反転ローラ33に導
かれて巻取リール40に巻き取られる。すなわち、この
巻取リール40は第5図に示すように、キャリッジ41
の下部に設けたモータ等の駆動装置42の駆動軸43に
よって反時計方向に回転させられるものであり、この巻
取リール40の回転によってインクリボン33は正印字
用へラド32の記録面においてプラテンに対して左方向
(第4図矢印a方向)に移送され、逆印字用ヘッド31
の記録面においてプラテンに対して右方向 (第4図矢
印す方向)に移送されることになるものである。上記反
転ローラ38は、極薄のインクリボン33の裏面と表面
を反転させる際にインクリボン33がねじれてしまわな
いように1反転個所においてインクリボン33を支える
もので、軸ビン15によって回転自在に軸支されるもの
である。このようにインクリボン33を反転させるのは
、インクリボン33には記録用紙に接する表面側だけに
しかインクが91布されていないため、一度リボンを反
転させなければ逆印字用へラド31においてインクの塗
布された表面側が記録用紙に対向しなくなるからである
On the other hand, the ribbon cassette 32 stores an ink ribbon 33, which is pre-wound on a reel 34 as shown in FIG.
The reel 34 is rotatably engaged with a shaft pin 3B provided on the upper lid 35 of the ribbon cassette 32, and is prevented from falling off by a stopper 37. Further, the ink ribbon 33 is guided by the guide pin 38 and the ribbon reversing roller 33 and wound onto the take-up reel 40 . That is, as shown in FIG. 5, this take-up reel 40 is
The ink ribbon 33 is rotated counterclockwise by a drive shaft 43 of a drive device 42 such as a motor provided at the bottom of the ink ribbon 33, and as a result of the rotation of this take-up reel 40, the ink ribbon 33 is moved onto the platen on the recording surface of the disk 32 for normal printing. The head 31 for reverse printing is transferred to the left (direction of arrow a in FIG. 4).
The recording surface is to be transported in the right direction (in the direction indicated by the arrow in FIG. 4) with respect to the platen. The reversing roller 38 supports the ink ribbon 33 at one reversal point to prevent the ink ribbon 33 from being twisted when reversing the back and front surfaces of the ultra-thin ink ribbon 33, and is rotatable by the shaft pin 15. It is supported by a shaft. The reason why the ink ribbon 33 is reversed in this way is that the ink ribbon 33 is coated with ink only on the front side that contacts the recording paper, so if the ribbon is not reversed once, the ink will not be applied to the reverse printing pad 31. This is because the surface side coated with is no longer facing the recording paper.

従って、この実施例に係る印字機構によれば、正逆内印
字ヘッド30.31を通るインクリボン33の方向が逆
転するから、キャリッジが往動作を行うときには正印字
用へラド30がプラテン方向に接近して記録用紙に正印
字(文字を左方向から右方向へ印字すること)を行い、
キャリッジが復動作を行うときには逆印字用へラド31
がプラテン方向に接近して逆印字(文字を右方向から左
方向へ印字すること)を行うことができる。
Therefore, according to the printing mechanism according to this embodiment, since the direction of the ink ribbon 33 passing through the forward/reverse inner print heads 30 and 31 is reversed, when the carriage performs forward movement, the normal printing head 30 is moved toward the platen. Approach it and perform normal printing (printing characters from the left to the right) on the recording paper.
When the carriage performs a backward movement, the reverse printing head 31
can approach the platen direction and perform reverse printing (printing characters from right to left).

〔効果〕〔effect〕

以上説明したように、本発明に係る印字機構によれば、
正印字用と逆印字用の2つの印字ヘッドを設け、該印字
ヘッドを通過するインクリボンの移送方向を印字ヘッド
の移動方向とは逆方向にしたから、印字ヘッドが往動作
するときには正印字用ヘッドによって印字を行い、印字
ヘッドが復動作をするときには逆印字用ヘッドによって
印字を行うことができることになり、記録用紙への印字
速度が高まって、熱転写プリンタの記録処理能力が上昇
するものである。
As explained above, according to the printing mechanism according to the present invention,
Two print heads are provided, one for normal printing and one for reverse printing, and the direction of transport of the ink ribbon passing through the print heads is opposite to the direction of movement of the print head, so when the print head moves forward, it is used for normal printing. Printing is performed by the head, and when the print head makes a backward movement, the reverse print head can print, increasing the printing speed on the recording paper and increasing the recording processing capacity of the thermal transfer printer. .

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

第1図は本発明の第一の実施例に係る印字機構を示す平
面図、第2図は第1図の入方向からの矢視図、:jS3
図は上記第一実施例を実施するためのプリンタを示す斜
視図、第4図は本発明の第二の実施例を示す平面図、第
5図は上記第二実施例のリボンカセット内のインクリボ
ンの収納状態を示す第4図の■−v線断面図、第8図は
従来の熱転写プリンタを示す全体斜視図。 第7図は熱転写プリンタにおける従来の印字機構を示す
平面図、第8図は第7図のB方向からの矢視図、第9図
は印字ヘッドの記録部を示す拡大図である。 2・・・記録用紙 3・・・プラテン 14・・・キャリッジ 15・・・逆印字リボンカセット 1B・・・正印字リボンカセット 17・・・逆印字用ヘッド 18・・・正印字用ヘッド 19・・・逆印字用インクリボン 24・・・正印字用インクリボン 30・・・正印字用ヘッド 31・・・逆印字用ヘッド 32・・・リボンカセット 33・・・インクリボン 39・・・リボン反転ローラ 41・・・キャリフジ
FIG. 1 is a plan view showing the printing mechanism according to the first embodiment of the present invention, FIG. 2 is a view taken from the direction of entry in FIG. 1, :jS3
The figure is a perspective view showing a printer for carrying out the first embodiment, FIG. 4 is a plan view showing a second embodiment of the present invention, and FIG. 5 is an ink inside the ribbon cassette of the second embodiment. FIG. 4 is a cross-sectional view taken along the line ■-v in FIG. 4 showing a state in which the ribbon is stored, and FIG. 8 is an overall perspective view showing a conventional thermal transfer printer. FIG. 7 is a plan view showing a conventional printing mechanism in a thermal transfer printer, FIG. 8 is a view taken from the direction of arrow B in FIG. 7, and FIG. 9 is an enlarged view showing the recording section of the print head. 2... Recording paper 3... Platen 14... Carriage 15... Reverse printing ribbon cassette 1B... Normal printing ribbon cassette 17... Reverse printing head 18... Normal printing head 19. ... Ink ribbon for reverse printing 24 ... Ink ribbon for normal printing 30 ... Head for normal printing 31 ... Head for reverse printing 32 ... Ribbon cassette 33 ... Ink ribbon 39 ... Ribbon reversal Roller 41...Carriage

Claims (1)

【特許請求の範囲】[Claims] プラテンに対して独立して進退動可能な2個の印字ヘッ
ドを有し、左方向印字時には一方の印字ヘッドをプラテ
ンに押し付け、右方向移動時には他方の印字ヘッドをプ
ラテンに押し付けて印字するとともに、各印字時には印
字ヘッドを通過するインクリボンを印字ヘッドの移動方
向とは逆方向に移送されることを特徴とする熱転写プリ
ンタにおける往復印字機構。
It has two print heads that can independently move forward and backward relative to the platen, and when printing in the left direction, one print head is pressed against the platen, and when moving in the right direction, the other print head is pressed against the platen to print. A reciprocating printing mechanism for a thermal transfer printer, characterized in that an ink ribbon passing through a print head is transported in a direction opposite to the direction of movement of the print head during each print.
JP18193084A 1984-08-31 1984-08-31 Reciprocally printing mechanism in thermal transfer printer Granted JPS6158768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18193084A JPS6158768A (en) 1984-08-31 1984-08-31 Reciprocally printing mechanism in thermal transfer printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18193084A JPS6158768A (en) 1984-08-31 1984-08-31 Reciprocally printing mechanism in thermal transfer printer

Publications (2)

Publication Number Publication Date
JPS6158768A true JPS6158768A (en) 1986-03-26
JPH0430912B2 JPH0430912B2 (en) 1992-05-25

Family

ID=16109380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18193084A Granted JPS6158768A (en) 1984-08-31 1984-08-31 Reciprocally printing mechanism in thermal transfer printer

Country Status (1)

Country Link
JP (1) JPS6158768A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4760405A (en) * 1985-10-22 1988-07-26 Canon Kabushiki Kaisha Method and apparatus for recording an image
JPS6463175A (en) * 1987-09-02 1989-03-09 Nec Corp Thermal transfer printer
US5157413A (en) * 1988-02-18 1992-10-20 Kabushiki Kaisha Toshiba Thermal inked ribbon printer mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59230784A (en) * 1983-06-13 1984-12-25 Sharp Corp Ink ribbon take-up device for heat transfer recorder
JPS6012465U (en) * 1983-07-04 1985-01-28 日本電産コパル株式会社 Thermal transfer serial printer
JPS60224572A (en) * 1984-04-20 1985-11-08 Canon Inc Transfer recorder
JPS6137966U (en) * 1984-08-14 1986-03-10 沖電気工業株式会社 ink ribbon cassette

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6012465B2 (en) * 1975-11-10 1985-04-01 株式会社クラレ Method for producing high-strength entangled nonwoven fabric
JPS5631417A (en) * 1979-08-22 1981-03-30 Hitachi Chem Co Ltd Moving bed type filtering method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59230784A (en) * 1983-06-13 1984-12-25 Sharp Corp Ink ribbon take-up device for heat transfer recorder
JPS6012465U (en) * 1983-07-04 1985-01-28 日本電産コパル株式会社 Thermal transfer serial printer
JPS60224572A (en) * 1984-04-20 1985-11-08 Canon Inc Transfer recorder
JPS6137966U (en) * 1984-08-14 1986-03-10 沖電気工業株式会社 ink ribbon cassette

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4760405A (en) * 1985-10-22 1988-07-26 Canon Kabushiki Kaisha Method and apparatus for recording an image
JPS6463175A (en) * 1987-09-02 1989-03-09 Nec Corp Thermal transfer printer
US5157413A (en) * 1988-02-18 1992-10-20 Kabushiki Kaisha Toshiba Thermal inked ribbon printer mechanism

Also Published As

Publication number Publication date
JPH0430912B2 (en) 1992-05-25

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