JPS61244570A - Thermal printer - Google Patents
Thermal printerInfo
- Publication number
- JPS61244570A JPS61244570A JP8536085A JP8536085A JPS61244570A JP S61244570 A JPS61244570 A JP S61244570A JP 8536085 A JP8536085 A JP 8536085A JP 8536085 A JP8536085 A JP 8536085A JP S61244570 A JPS61244570 A JP S61244570A
- Authority
- JP
- Japan
- Prior art keywords
- platen
- thermal head
- heating element
- element groups
- thermal
- 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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/02—Platens
- B41J11/14—Platen-shift mechanisms; Driving gear therefor
Landscapes
- Handling Of Sheets (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、発熱抵抗体素子（以下、発熱素子と記す。）
が熱転写インクリボン（以下、インクリボンと記す。）
を介在して印字用紙をプラテンに押付け、印字を行うサ
ーマルプリンタに関し、特に発熱素子群が均一に印字用
紙に押付くようにしたプラテン構造に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a heating resistor element (hereinafter referred to as a heating element).
is a thermal transfer ink ribbon (hereinafter referred to as ink ribbon).
The present invention relates to a thermal printer that performs printing by pressing printing paper against a platen through an intervening device, and particularly relates to a platen structure in which a group of heating elements uniformly presses against the printing paper.
常にプラテンと印字ヘッドが抑圧状態で摺動するプリン
タにおいては、紙送シ時に印字用紙とプラテンの間に摩
擦力が発生する。そのため、印字用紙の正確な紙送シが
さまたげられ、さらに紙づ−１：、！ｌ）の原因となシ
、また搬送モータに過負荷がかか多消費電力が増大する
欠点があった。In printers in which the platen and print head always slide in a compressed state, frictional force is generated between the print paper and the platen during paper feeding. As a result, accurate paper feeding of the printing paper is hindered, and paper 1:,! In addition, there is a drawback that the conveyance motor is overloaded, resulting in increased power consumption.
そこで、前記欠点を解決するために、印字用紙の紙送シ
時に印字ヘッドとプラテンの間に間隔を設けることによ
り、印字用紙とプラテンの間に発生する摩擦力の低減を
はかるプリンタが考え出された。例えば、この従来のサ
ーマルプリンタとしては、特開昭５９−１５５０７５号
記載の従来例があるが、この従来例をそれぞれ第２図〜
第５図に基づいて説明する。Therefore, in order to solve the above-mentioned drawbacks, a printer was devised that reduces the frictional force generated between the printing paper and the platen by providing a space between the printing head and the platen when feeding the printing paper. Ta. For example, as this conventional thermal printer, there is a conventional example described in Japanese Patent Application Laid-Open No. 59-155075.
This will be explained based on FIG.
先ず、第２図は第１従来例の要部側面図である。First, FIG. 2 is a side view of the main parts of the first conventional example.
このサーマルプリンタは、断面が円形のプラテン１を使
用しており、ローラ２を介して印字用紙３がプラテン１
に沿って導かれる。壕だ、このサーマルヘッド４には、
プラテン１ ｇ４１１の一端面に複数個の発熱素子群５
を設けであると共に、他端部を回転支持部６で支持され
たサーマルヘッド支持部材７に取付けである。This thermal printer uses a platen 1 with a circular cross section, and a printing paper 3 is passed through a roller 2 to the platen 1.
guided along. It's a trench, this thermal head 4 has
Plural heating element group 5 on one end surface of platen 1 g411
The other end is attached to the thermal head support member 7 supported by the rotation support part 6.
さらに、表面が弾性体からなるプラテン１と発熱素子群
５との間には、インクリボン８が走行し、サーマルヘッ
ド４０発熱素子
ボン８のインクは、プラテン１に清って導かれた印字用
紙３に転写され、印字が行なわれる。Furthermore, an ink ribbon 8 runs between the platen 1 whose surface is made of an elastic material and the heating element group 5, and the ink from the thermal head 40 and the heating element bong 8 is transferred to the printing paper that is cleanly guided to the platen 1. 3, and printing is performed.
この印字時に、サーマルヘッド４の発熱素子群５が、所
定の圧力でプラテン１の弾性体部分に押付けられた場合
、弾性体部分における縦配列方向の発熱素子群５に対す
る反力は、第３図に示す如く三日月状の分布と々シ、中
火部が強く、さらに上下の端部か弱くなる。When the heating element group 5 of the thermal head 4 is pressed against the elastic body part of the platen 1 with a predetermined pressure during this printing, the reaction force against the heating element group 5 in the vertical arrangement direction on the elastic body part is as shown in FIG. As shown in the figure, it has a crescent-shaped distribution, with the middle heat being stronger, and the upper and lower ends being weaker.
壕だ、第４図は第２従来例の製筒Ｓ側面図であシ、前記
した第１従来例と同一部分には同一番号をイボしである
。このサーマルプリンタは、第１従来例に示す円柱状の
プラテン１の代わシに、表面が平ら彦弾性体からなる平
プラテン１を使用し、平プラテン１０弾性体部分に宿っ
て印字用紙３は、ローラ２により走行する。FIG. 4 is a side view of the second conventional example of cylinder making S, and the same parts as those of the first conventional example are given the same numbers. This thermal printer uses a flat platen 1 whose surface is made of a flat Hiko elastic body in place of the cylindrical platen 1 shown in the first conventional example, and the printing paper 3 is held in the elastic body part of the flat platen 10. It runs by rollers 2.
ここで、このサーマルプリンタの印字時に、サーマルヘ
ッド４の発熱素子群５が、所定の庄カヤ平弾性体部分に
おける縦配列方向の発熱素子群５に対する反力は、第５
図に示すように作用し、上端部が一番強く、下方にいく
ほど弱くなって、最下端部が一番弱い。Here, during printing with this thermal printer, the reaction force of the heating element group 5 of the thermal head 4 against the heating element group 5 in the longitudinal arrangement direction at a predetermined flat elastic body portion is the fifth
It works as shown in the figure, being strongest at the top, becoming weaker as you move downward, and being the weakest at the bottom.
なぜならばこれは、サーマルヘッド４が回転支持部６を
中心に回動する構造に々っているため、に抑圧する時、
発熱素子群５の上端部と下端部における平プラテ”−’
１１′クカの押付は量が異なり、その結果上下端部にお
ける反力が異なってし丑う。This is because the thermal head 4 is structured to rotate around the rotation support part 6, so when suppressing the
Flat plate "-' at the upper end and lower end of heating element group 5
11' The amount of pressure applied by the hooks is different, resulting in different reaction forces at the upper and lower ends.
しかしながら、前記した第１従来例は、印字時における
縦配列方向の発熱素子群に対する反力が、第３図に示す
如く三日月状の分布となるため、発熱素子群の中央部で
は印字がつぶれ、上下端部では印字が薄くなシ、印字品
位が低下する問題が生じる。However, in the first conventional example described above, the reaction force against the heating element group in the vertical arrangement direction during printing has a crescent-shaped distribution as shown in FIG. At the upper and lower ends, there is a problem that the print is not thin and the print quality is degraded.
また、前記した第２従来例は、印字時における縦配列方
向の発熱素子群に対する反力が、第５図に示す如く」一
端面が強く、下端部が弱く々るため、発熱素子群の上部
では印字がつぶれ、下部では印字が薄くなる。その結果
、第１従来例と同じように印字品位が低下する問題が発
生する。Furthermore, in the above-mentioned second conventional example, the reaction force against the heating element group in the vertical arrangement direction during printing is strong at one end surface and weak at the lower end, as shown in FIG. The print is crushed, and the print becomes fainter at the bottom. As a result, the same problem as in the first conventional example occurs, in which the print quality deteriorates.
本発明は、前記問題を解決するためになされたものであ
り、その目的は、サーマルヘッドの発熱素子群とプラテ
ンの印字面側が常に平行に々るようにすることにより、
均一な印字ができるサーマルプリンタを提供することに
ある。The present invention has been made to solve the above problem, and its purpose is to ensure that the heating element group of the thermal head and the printing surface side of the platen are always parallel to each other.
An object of the present invention is to provide a thermal printer capable of uniform printing.
前記した目的を達成するため、本発明は、一端面に複数
個の発熱素子群を設けて他端を回動自在に取付けたサー
マルヘッドと、該サーマルヘッドの発熱素子群側を平板
状に形成したプラテンとを具備したサーマルプリンタに
おいて、一定圧力でサーマルヘッドの発熱素子群の押圧
力を受けとめると共に弾性部材を有するプラテンを、回
転支持部により回動自在に支持して付勢力を与えるよう
に構成したことを特徴とする。In order to achieve the above-mentioned object, the present invention provides a thermal head in which a plurality of heating element groups are provided on one end surface and the other end is rotatably attached, and the heating element group side of the thermal head is formed into a flat plate shape. The thermal printer is configured to receive the pressing force of the heating element group of the thermal head at a constant pressure, and to rotatably support the platen, which has an elastic member, by a rotary support part to apply an urging force. It is characterized by what it did.
前記特徴を有する本発明は、印字時にサーマルヘッドが
回動して、その発熱素子群がインクリボンを介在して印
字用紙を平らなプラテンに押付ける。このとき、プラテ
ンは、一定圧力で発熱素子群を受けとめると共に回転支
持部を中心に回動し、しかも付勢力の作用により発熱素
子群の端から端まで常にサーマルヘッドとプラテンとが
平行状態になる。この状態で印字用紙に印字が行われる
。In the present invention having the above characteristics, the thermal head rotates during printing, and its heating element group presses the printing paper against the flat platen with the ink ribbon interposed. At this time, the platen receives the heating element group under a constant pressure and rotates around the rotating support part, and the thermal head and the platen are always in a parallel state from one end of the heating element group to the other due to the action of the biasing force. . In this state, printing is performed on the printing paper.
以下、本発明の第１実施例を第１図及び第６図に基づい
て説明する。A first embodiment of the present invention will be described below with reference to FIGS. 1 and 6.
第１図は本発明に係るサーマルプラテンの第１実施例を
示す構成図である。第１図において、１゜はサーマルヘ
ッドで、一端面に複数蘭の発熱素子群１１を設け、他端
を回転支持部１２で支持されたザーマルヘッド支持部月
１３に成句けである。FIG. 1 is a configuration diagram showing a first embodiment of a thermal platen according to the present invention. In FIG. 1, 1° is a thermal head, with a plurality of heat generating element groups 11 provided on one end surface and a thermal head support part 13 supported by a rotation support part 12 at the other end.
１４はプラテンで、回転支持部１５により支持枠１６全
回動自在に支持し、この支持枠１６に前記発熱素子群１
１に対向するように平板状の弾性部材１７を設ける。１
８は付勢部利で、弾性部材１γを発熱素子群１１方向に
付勢する。１９は印字用紙で、図示せぬローラ等により
弾性部材１７に清って走行する。２０はインクリボンで
ある。Reference numeral 14 denotes a platen, and a support frame 16 is fully rotatably supported by a rotary support part 15, and the heating element group 1 is mounted on this support frame 16.
A flat elastic member 17 is provided so as to face the elastic member 1 . 1
Reference numeral 8 denotes a biasing unit that biases the elastic member 1γ in the direction of the heating element group 11. Reference numeral 19 denotes printing paper, which is moved along the elastic member 17 by rollers (not shown) or the like. 20 is an ink ribbon.
第６図はサーマルヘッドとプラテンとの力の作用関係及
び変位を説明する本発明の第１実施例の説明図である。FIG. 6 is an explanatory diagram of the first embodiment of the present invention, illustrating the force relationship and displacement between the thermal head and the platen.
第６図において、ｋｌはサーマルヘッド１０の発熱素子
群１１に押圧される弾性部材１７の剛性率を示す。ｋ２
はプラテン１４をサーマルヘッド１０方向に押圧するた
めの付勢部材１８の剛性率を示す。１１は回転支持部１
２からサーマルヘッド１０が弾性部材１７を押圧する部
分の中心１での距離を示す。１２は回転支持部１５から
サーマルヘッド１０により押圧される弾性部材１１の中
心点までの距離を示す。１３は回転支持部１５から伺勢
部材１８が支持枠１６に作用する点壕での距離を示す。In FIG. 6, kl indicates the rigidity of the elastic member 17 pressed against the heating element group 11 of the thermal head 10. In FIG. k2
represents the rigidity of the biasing member 18 for pressing the platen 14 in the direction of the thermal head 10. 11 is the rotation support part 1
2 indicates the distance from the center 1 of the portion where the thermal head 10 presses the elastic member 17. 12 indicates the distance from the rotation support portion 15 to the center point of the elastic member 11 pressed by the thermal head 10. 13 indicates the distance from the rotary support portion 15 at the point where the biasing member 18 acts on the support frame 16.
また Ｆｌはサーマルヘッド１０による弾性部材１７の
押圧力を示す。Ｆ２は付勢部材１８の付勢力、ｘｌはサ
ーマルヘッド１０と弾性部材１７が押圧する中心点のプ
ラテン１４方向の移動距離を示す。Further, Fl indicates the pressing force of the elastic member 17 by the thermal head 10. F2 indicates the biasing force of the biasing member 18, and xl indicates the moving distance of the center point pressed by the thermal head 10 and the elastic member 17 in the direction of the platen 14.
Ｘ？は前記と同方向における前記中心点上の支持枠１６
の移動距離を示す。Ｘうは前記と同方向における伺勢部
材１８が作用する支持枠１６の作用点の移動距離を示す
。θはサーマルヘッド１０の回転角度を示す。φは支持
枠１６の回転角度を示す。X? is the support frame 16 on the center point in the same direction as above.
indicates the distance traveled. X represents the moving distance of the point of action of the support frame 16 on which the biasing member 18 acts in the same direction as above. θ indicates the rotation angle of the thermal head 10. φ indicates the rotation angle of the support frame 16.
ところで、ここでサーマルヘッド１０をプラテン１４側
へ押圧するための付勢回転力ｉＭとすれば、力の釣合い
から、
Ｆｌ ＝ ｋ＋、 （礼−＼２）・・・・・・・・・・
・・・・（ａ）Ｆ、 −に２ｘ’、 ・・・・
・・・・・・・・・（ｂ）Ｆｌ ｚ２＝ Ｆ２７う
・・・・・・・・・・・・・・（ｃ）が成立する。By the way, if we assume here that the urging rotational force iM for pressing the thermal head 10 toward the platen 14 side, then from the balance of forces, Fl = k+, (Rei-\2)...
...(a) F, -2x', ...
・・・・・・・・・(b) Fl z2= F27
・・・・・・・・・・・・・・・(c) holds true.
また、サーマルヘッド１０とプラテン１４における変位
の適合条件により、
ＸＩ−θｌＪ ・・・・・・・・・・・・・・
・（ｄ）Ｘ２−φ１２ ・・・・・・・・・・
・・・・・（ｅ）Ｘ、＝ φｌう
・・・・・・ ・・・・・ ・・・（ｆ）が成立する
。Also, depending on the compatible conditions of displacement between the thermal head 10 and the platen 14, XI-θlJ ・・・・・・・・・・・・・・・
・(d)X2-φ12・・・・・・・・・・・・
...(e)X, = φl
...... ...(f) holds true.
したがって、（ａ）、 （ｄ）及び（ｅ）式から、Ｆ１
＝ ｋ、 （θｌ］−φＩｌ？）・・・・・・・・（ｇ
）（ｂ）及び（ｆ）式から
Ｆ３ ＝ ｋうφｌう ・・・ ・・
・・・・ ・・・・・・（ｈ）が導びかれ、さらに（ｇ
）及び（ｈ）式ヲ（ｃ）式に代入すれば、
ｋｌ１２（θ１１−φ１２） ＝ ｋ２φ１３・・・・
・・・・・（ｉ）となる。Therefore, from equations (a), (d) and (e), F1
= k, (θl]-φIl?)...(g
) From formulas (b) and (f), F3 = kφl ・・・ ・・
...... (h) is derived, and then (g
) and (h) into equation (c), kl12(θ11-φ12) = k2φ13...
...(i).
そこで、全ての発熱素子群１１が弾性部材１１に均一な
押圧力で押圧するには、弾性部材１７の変位量を発熱素
子群１１に活って一定とすればよい。そのために、サー
マルヘッド１０と弾性部材１Ｔが常に平行状態になる必
要があるので、（ｉ）式において、θ−φとしなければ
々ら々い。すなわ１（１７２（４７２） ”＝ ｋ２１
５ ・・・・・・・・・・・・（ｊ）が成立する必要
がある。Therefore, in order for all the heating element groups 11 to press against the elastic member 11 with a uniform pressing force, the amount of displacement of the elastic member 17 may be applied to the heating element group 11 to make it constant. For this reason, it is necessary for the thermal head 10 and the elastic member 1T to be in a parallel state at all times, so in equation (i), it is difficult not to set θ-φ. That is 1 (172 (472) ”= k21
5 ・・・・・・・・・・・・(j) must hold true.
したがって、この第１実施例では、サーマルヘッド１０
の発熱素子群１１の全てにわたり、弾性部材１７との押
圧力をサーマルヘッド１００回動位置にかかわらず常に
一様にするため、前記（ｊ）式を満足するように、回転
支持部１５からプラテン１４の各作用点までの距離１２
並びに１５、さらに付勢部材１８の剛性率１（５ヲ設定
しである。Therefore, in this first embodiment, the thermal head 10
In order to always make the pressing force with the elastic member 17 uniform over all of the heating element groups 11 regardless of the rotational position of the thermal head 100, the platen is moved from the rotary support part 15 so as to satisfy the above formula (j). Distance 12 to each point of application of 14
and 15, and the rigidity of the biasing member 18 is set to 1 (5).
第７図は本発明に係るサーマルプラテンの第２実施例を
示す構成図である。この第２実施例は第１実施例に示す
伺勢部拐１８の代わりに、回動力により付勢力を与える
付勢部材２１を用いたものであシ、第１実施例とロ一部
分及び同一の所は同一番号及び同一符号を付して説明す
る。FIG. 7 is a configuration diagram showing a second embodiment of the thermal platen according to the present invention. This second embodiment uses a biasing member 21 that applies a biasing force by rotational force instead of the biasing member 18 shown in the first embodiment, and has the same B and B parts as the first embodiment. The same numbers and symbols will be used to describe the same parts.
ここで、付勢部材２１のねじシ剛性率をτとすれば、
τ −Ｍ／φ−Ｆ５１２２ ／χ、 −ｋ２１’；
−−−（ｐ）と力るので、（ｊ）及び（ｐ）式から、
に＋１２（７ｚ −１２）−τ ・・・・・・・・・（
ｑ）が導びかれ、この（ｑ）式を成立させれば、全ての
発熱素子群１１が弾性部材１７に均一な押圧力で押圧す
る。そこで、前記第１実施例と同様に、プラテン１４の
支持枠１６に回転作用する付勢部材２１のねじシ剛性率
τを（ｐ）式が満足する値に設定し、或いは１１，１２
並びにに１を設定する。Here, if the screw rigidity of the biasing member 21 is τ, then τ −M/φ−F5122 /χ, −k21′;
---(p), so from equations (j) and (p),
+12(7z −12)−τ ・・・・・・・・・(
q) is derived, and if this equation (q) is established, all the heating element groups 11 press against the elastic member 17 with a uniform pressing force. Therefore, similarly to the first embodiment, the screw rigidity τ of the biasing member 21 that rotationally acts on the support frame 16 of the platen 14 is set to a value that satisfies equation (p), or 11, 12
and set to 1.
第８図は本発明に係るサーマルプラテンの第３実施例を
示す構成図である。尚、前記第１実施例と同一部分及び
同一の所は同一番号及び同一符号を伺して説明する。FIG. 8 is a configuration diagram showing a third embodiment of the thermal platen according to the present invention. Note that the same parts and parts as in the first embodiment will be described using the same numbers and symbols.
前記第１実施例及び第２実施例は、付勢部材１８または
２１により一定圧力で発熱素子群１１の押圧力を受けと
めていたが、この第３実施例では、回転支持部２２によ
りブラテン２３にかかる押圧力を支持する。すなわち、
発熱素子群１１が押圧する個所のプラテン２３中央部を
回転支持部２２により回動自在に支持する。In the first and second embodiments, the pressing force of the heating element group 11 is received at a constant pressure by the biasing member 18 or 21, but in the third embodiment, the pressing force of the heating element group 11 is received by the rotating support part 22. This pressing force is supported. That is,
The central portion of the platen 23, which is pressed by the heating element group 11, is rotatably supported by a rotary support portion 22.
この第３実施例は、前記（ｊ）式にて１２−〇とした例
を示す。つｔ、り、（ｊ）式に４２二〇を代入すると、
左辺はＯとなるので、ｋう＝０またはｌう二〇となれば
、サーマルヘッド１ｏと弾性部材１７は平行と々す、常
に均等に押圧する。したがって、この例では、ｋ２＝ｏ
、 ｚ、＝ｏとした実施例を示すものである。This third embodiment shows an example in which the equation (j) is set to 12-0. Substituting 4220 into equation (j), we get
Since the left side is O, if k = 0 or l = 20, the thermal head 1o and the elastic member 17 are parallel and always press evenly. Therefore, in this example, k2=o
, z, = o.
前記した如く、本発明に係るサーマルプリンタによれば
、（ｊ）式や（ｇ）式が満足できるように、一端面に発
熱素子群を設けたサーマルヘッド全回動自在に設けると
共に、一定圧力で発熱素子群の押圧力を受けとめるプラ
テンを回転支持部により回動自在に支持したことによっ
て、サーマルヘッドの回動位置にかかわらず、発熱素子
群の全てに渡シ、プラテンとの押圧力は常に均一となる
。そのため、部分的な印字のつぶれや印字が薄いといっ
た印字品位の低下を除去でき、高印字品位のサーマルプ
リンタを提供できる効果がある。As described above, according to the thermal printer according to the present invention, in order to satisfy equations (j) and (g), the thermal head with a heating element group provided on one end surface is provided in a fully rotatable manner, and a constant pressure is applied to the thermal printer. By rotatably supporting the platen, which receives the pressing force of the heating element group, by the rotating support, the pressing force with the platen is always transmitted to all of the heating element groups, regardless of the rotational position of the thermal head. It becomes uniform. Therefore, it is possible to eliminate deterioration in print quality such as partial print collapse or thin print, and it is possible to provide a thermal printer with high print quality.
第１図は本発明の第１実施例を示す構成図、第２図は第
１従来例の要部側４面図、第３図は第１従来例に用いる
サーマルヘッドにがかる反力分布を説明する図、第４図
は第２従来例の要部側面図、第５図は第２従来例に用い
るサーマルヘッドにがかる反力分布を説明する図、第６
図は第１図に示すサーマルヘッドとプラテンとの力の作
用関係及び変位を説明する説明図、第７図は本発明の第
２実施例を示す構成図、第８図は本発明の第３実施例を
示す構成図である。
１２．１５．２２・・・回転支持部 １４．２３・・・
プラテン １７・・・弾性部材 １８．２１・・・付勢
部材 １９・・・印字用紙 ２０・・・インクリボン特
許 出願人 沖電気工業株式会社
代理人 弁理士 金 倉 喬 二
）ｔ へ
Δ
に
□Fig. 1 is a configuration diagram showing the first embodiment of the present invention, Fig. 2 is a four-view side view of the main part of the first conventional example, and Fig. 3 shows the reaction force distribution applied to the thermal head used in the first conventional example. 4 is a side view of the main part of the second conventional example, FIG. 5 is a diagram illustrating the reaction force distribution applied to the thermal head used in the second conventional example, and FIG.
The figures are explanatory diagrams explaining the force relationship and displacement between the thermal head and the platen shown in Figure 1, Figure 7 is a configuration diagram showing the second embodiment of the present invention, and Figure 8 is the third embodiment of the present invention. FIG. 2 is a configuration diagram showing an example. 12.15.22...Rotation support part 14.23...
Platen 17...Elastic member 18.21...Biasing member 19...Printing paper 20...Ink ribbon patent Applicant: Oki Electric Industry Co., Ltd. Representative Patent attorney Takashi Kanakura 2) To Δ to □
Claims (1)
回動自在に取付けたサーマルヘッドと、サーマルヘッド
に対向して配置され、サーマルヘッドの発熱抵抗体素子
群側を平板状に形成したプラテンとを具備し、印字時に
発熱抵抗体素子群が熱転写インクリボンを介在して印字
用紙をプラテンに押付け、印字を行うサーマルプリンタ
において、 一定圧力で発熱抵抗体素子群の押圧力を受けとめるプラ
テンを回転支持部により回動自在に支持し、サーマルヘ
ッドの当接によりプラテンが発熱抵抗体素子全面と平行
に回動移動することを特徴とするサーマルプリンタ。[Scope of Claims] 1. A thermal head having a plurality of heating resistor element groups provided on one end surface and rotatably attached at the other end, and a heating resistor of the thermal head disposed opposite to the thermal head. A thermal printer is equipped with a platen whose element group side is formed into a flat plate, and when printing, the heating resistor element group presses the printing paper against the platen with a thermal transfer ink ribbon interposed, and prints. A thermal printer characterized in that a platen that receives the pressing force of a group of elements is rotatably supported by a rotary support part, and when a thermal head comes into contact with the platen, the platen is rotated in parallel with the entire surface of a heating resistor element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8536085A JPS61244570A (en) | 1985-04-23 | 1985-04-23 | Thermal printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8536085A JPS61244570A (en) | 1985-04-23 | 1985-04-23 | Thermal printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61244570A true JPS61244570A (en) | 1986-10-30 |
Family
ID=13856542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8536085A Pending JPS61244570A (en) | 1985-04-23 | 1985-04-23 | Thermal printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61244570A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4940994A (en) * | 1988-05-03 | 1990-07-10 | U.S. Philips Corporation | Thermal printer |
-
1985
- 1985-04-23 JP JP8536085A patent/JPS61244570A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4940994A (en) * | 1988-05-03 | 1990-07-10 | U.S. Philips Corporation | Thermal printer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH03222758A (en) | Thermal recording device | |
| KR100736886B1 (en) | Thermal printer for printing receipt and label | |
| JPS61244570A (en) | Thermal printer | |
| US5146238A (en) | Line-type thermal printing apparatus for printing on a sheet having different thicknesses | |
| CN101564938A (en) | Line thermal printer | |
| JPS61290072A (en) | Thermal printer | |
| JPS6264578A (en) | Thermal printer | |
| US4579056A (en) | Printing mechanism | |
| JPH0442277Y2 (en) | ||
| JPS6317063A (en) | Printer | |
| JPS6010998Y2 (en) | Pinch roller mechanism | |
| JPS6255178A (en) | Printing gap adjustment mechanism for printer | |
| JPS6392465A (en) | Thermal transfer printer | |
| JP3178973B2 (en) | Printing device in facsimile machine | |
| JPS62152773A (en) | Printing gap adjusting mechanism for printer | |
| JPH03138242A (en) | Sheet feed device | |
| JPH0110213Y2 (en) | ||
| JPS6313017Y2 (en) | ||
| EP0593293A2 (en) | Serial impact printer | |
| JPS63256474A (en) | Printing head gap adjusting mechanism for printer | |
| JPH05369Y2 (en) | ||
| JPS62270359A (en) | Sheet feed apparatus | |
| JPS61189975A (en) | Ribbon cartridge of thermal transfer printer | |
| JP2505638Y2 (en) | Print medium feeding mechanism in printer | |
| JPH065895Y2 (en) | Impact printer |