JPS63139755A - Thermal head - Google Patents
Thermal headInfo
- Publication number
- JPS63139755A JPS63139755A JP28734486A JP28734486A JPS63139755A JP S63139755 A JPS63139755 A JP S63139755A JP 28734486 A JP28734486 A JP 28734486A JP 28734486 A JP28734486 A JP 28734486A JP S63139755 A JPS63139755 A JP S63139755A
- Authority
- JP
- Japan
- Prior art keywords
- common
- fpc
- reduce
- electrode
- common side
- 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
- 239000012212 insulator Substances 0.000 claims abstract description 6
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000007639 printing Methods 0.000 abstract description 6
- 238000005476 soldering Methods 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 230000001788 irregular Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000007651 thermal printing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/345—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 characterised by the arrangement of resistors or conductors
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は感熱印字記録装置に用いられるサーマルヘッド
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thermal head used in a thermal printing and recording device.
第３図は従来のサーマルヘッドの構成を示したもので、
外部回路からコモン側ｐｐｏ（プリントサーキット回路
）ａＧを通してコモン側す−ド電極αｚ１発熱抵抗体口
、そしてシンク側リード電極α４）を通して電流の流れ
る回路を構成しコモン側の■又けＯとスイッチ巴の選択
により任意の発熱抵抗体の部分を通電できるように構成
されている。Figure 3 shows the configuration of a conventional thermal head.
A circuit is constructed in which current flows from the external circuit through the common side ppo (printed circuit circuit) aG, the common side lead electrode αz1 heating resistor mouth, and the sink side lead electrode α4). The configuration is such that any part of the heating resistor can be energized by selecting.
第４図は第３図のＡ−Ａ’断面を示したものでコモン側
ＩＰｐｏａｏとコモン側リード電極０２はゴムαり等を
介して力を加え圧接により導通させている。FIG. 4 shows a cross section taken along the line AA' in FIG. 3, and the common side IP poao and the common side lead electrode 02 are electrically connected to each other by applying force and pressure through a rubber band or the like.
次に動作について説明する。外部を源からコモン側“ｙ
ｐ Ｏ（１Ｇのコモンの又はコモンＯのどちらかに＋
２４Ｖの直流電源を印加し、シンク側リード電極（２）
に接続されたスイッチ四をＯＮすると電流がコモン側リ
ード電極α２から発熱抵抗体０を通り、シンク側す−ド
電極圓を通ってアース（至）に流れるため発熱抵抗体Ｇ
３が電流によるジュール熱により発熱する。Next, the operation will be explained. From the external source to the common side “y
p O (+ to either 1G common or common O
Apply 24V DC power and connect the sink side lead electrode (2)
When switch 4 connected to is turned on, current flows from the common side lead electrode α2, through the heat generating resistor 0, through the sink side lead electrode circle, and to the ground (to), so that the heat generating resistor G
3 generates heat due to Joule heat caused by the current.
この発熱を利用して感熱紙を発熱抵抗体りに押し付ける
ことにより印字させるもので、感熱紙の移動スピードと
コモンの又はコモン０の選択とスイッチ［相］の位置に
より任意の発熱抵抗体α３の部分を発熱させ、目的とす
る印字をするものである。This heat generation is used to print by pressing the thermal paper against the heating resistor, and depending on the moving speed of the thermal paper, the selection of common or common 0, and the position of the switch [phase], any heating resistor α3 can be set. It generates heat in the area and prints the desired character.
従来のサーマルヘッドはコモン側ＴＰＯの抵抗により通
電電流で数百ｍＶの電圧ドロップを生じ発熱抵抗体の位
置により印加エネルギーが変わるため感熱紙に印字され
た印字濃度がＦＰＯの抵抗値の増加する部分で濃度が低
下する問題があった。In conventional thermal heads, the resistance of the common side TPO causes a voltage drop of several hundred mV due to the applied current, and the applied energy changes depending on the position of the heating resistor, so the print density printed on thermal paper is affected by the area where the resistance value of the FPO increases. There was a problem that the concentration decreased.
この発明は上記のような問題点を解消するためになされ
たもので、コモン側ＦＰＣの抵抗値を小さくして電圧ド
ロップを改善し、印字溶度にムラが生じないことを目的
としたものである。This invention was made to solve the above-mentioned problems, and aims to reduce the resistance value of the common side FPC, improve voltage drop, and prevent uneven printing solubility. be.
この発明に係るサーマルヘッドはコモン側ｙｐ。 The thermal head according to this invention has a common side yp.
の抵抗値を小さくするためにＦＰＯに密着して半田付で
きるように銅板を加工したブスバーを備えたものでｐｐ
ａ本来の７レキシビリテイーを維持しており、かつ抵抗
値を小さく出来るように改善したものである。It is equipped with a bus bar made of copper plate so that it can be soldered closely to the FPO in order to reduce the resistance value of pp.
It maintains the original 7 flexibility and has been improved to reduce the resistance value.
この発明におけるサーマルヘッドはコモン側ｙｐｏをコ
モンのとコモン＠に分離して一体形に構成しており、こ
れにそれぞれブスバーをパラレルに接着及び半田付して
全体を一体形に構成したｙｐｏを備えておりＦＰＯに流
れる電流による電圧ドロップを小さくして印字品質を改
善する。The thermal head in this invention has a common-side ypo separated into a common side and a common@, which are integrally constructed, and each has a ypo whose bus bar is glued and soldered in parallel to form an integral structure. This reduces the voltage drop caused by the current flowing through the FPO and improves print quality.
以下この発明の一実施例を図について説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図のＡ −Ａ’断面である第２図においてブスバー
（４）及びイ５）が絶縁体（６）で一体形に構成され、
これを従来から使用しているコモン側ＦＰＯのコモンの
（１）及びコモン＠電極（２）に半田付により、それぞ
れの電極の抵抗値を小さくする０半田付（９）は普通コ
モンの側で４ケ所、コモン＠側で４ケ所実施する。In FIG. 2, which is a cross section taken along A-A' in FIG.
By soldering this to the common (1) and common@electrode (2) of the conventionally used common side FPO, the resistance value of each electrode is reduced by soldering (9), which is normally used on the common side. Conducted at 4 locations, 4 locations on the common @ side.
次に本発明の動作について説明する。Next, the operation of the present invention will be explained.
ＦＰＯはＡ４巾〜Ａ３巾等サーマルヘッドの機種により
長さが異なるが、いづれもそれらの長さ方向の片方から
もしくは両端から電圧を供給する構造となっているので
、供給部から距離の遠いほどＦＰＯの抵抗値のため電圧
ドロップが大きくなり印字画において濃度低下をきたす
。コモン側ＦＰＯに流れる電流は一度に発熱抵抗体を何
ドツト発熱さすかにより決まるが、印字スピードを上げ
るためには最小２回に分割して印字する。コモンの電極
（１３とコモン＠電極（２）の分離であり数１ＯＡの瞬
時電流が流れるためブスバーによる通路の確保が必要と
なる。ＦＰＯは構造的にゴム等を介して圧接により導通
させるので７レキシビリテイーを確保しながら電流によ
る電圧ドロップを小さくすること。更に厚さ方向の制限
もあり構造的な制約がある。The length of the FPO varies depending on the model of the thermal head, such as A4 width to A3 width, but all have a structure in which voltage is supplied from one or both ends of the length, so the farther away from the supply part the Due to the resistance value of the FPO, the voltage drop becomes large, causing a decrease in density in the printed image. The current flowing through the common side FPO is determined by how many dots are generated by the heating resistor at one time, but in order to increase the printing speed, the current is divided into at least two times for printing. Since the common electrode (13) and the common@electrode (2) are separated, and an instantaneous current of several 1 OA flows, it is necessary to secure a passage with a bus bar.Since FPO is structurally conductive by pressure welding through rubber etc. Minimize the voltage drop due to current while ensuring flexibility.Furthermore, there are restrictions in the thickness direction and structural constraints.
上記以外の基本的な動作は従来のものと同様である。The basic operation other than the above is the same as the conventional one.
以上のようにこの発明によれはコモン側ＩＦＰＯのＷ圧
ドロップを小さくしたので、サーマルヘッドの印字画に
濃度ムラが少なく高品質の印字が得られる効果がある。As described above, since the W pressure drop of the common side IFPO is reduced according to the present invention, there is an effect that high quality printing can be obtained with less density unevenness in the printed image of the thermal head.
第１図は本発明のサーマルヘッドの一実施例のコモン側
ＦＰＯの構成を示す図、第２図は第１図のＡ−Ａ線に沿
った断面図、第３図はサーマルヘッドの構成図、第４図
は従来のコモン側Ｆ、ＰＯとコモン側リード電極との接
続例を示す図である。
図において、Ｃ１）はコモンの電極、（２）はコモンＯ
電極、（３）及び（６）は絶縁体、（４）けブスバーＱ
、（５）はブスバー＠、（７）は電線ｉｐ、（８）は！
ｉｌｏ、＋９）は半田付部、（１Ｇはコモン側ＦＰＯ１
αｐは絶縁体、Ｃ２はコモン側リード電極、Ｃ３は発熱
抵抗体、Ｃ４）はシンク側リード電極、ａＢはスイッチ
、（至）はアース、αりはゴムを示す。
なお、図中、同一符号は同一、又は相当部分を示す。
代理人 大 岩 増 雄
第１図
４：５ｕｓｔ＜−■７：’！”４ｔ’Ｐｊ：Ｂｕ５バー
■
第２図
第３図
第４図FIG. 1 is a diagram showing the configuration of the common side FPO of an embodiment of the thermal head of the present invention, FIG. 2 is a sectional view taken along the line A-A in FIG. 1, and FIG. 3 is a configuration diagram of the thermal head. , FIG. 4 is a diagram showing an example of the connection between the conventional common side F, PO and the common side lead electrode. In the figure, C1) is the common electrode, (2) is the common O
Electrode, (3) and (6) are insulators, (4) Kevous bar Q
, (5) is bus bar @, (7) is electric wire IP, (8) is!
ilo, +9) is the soldering part, (1G is the common side FPO1
αp is an insulator, C2 is a common side lead electrode, C3 is a heating resistor, C4) is a sink side lead electrode, aB is a switch, (to) is a ground, and α is a rubber. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Agent Masuo Oiwa Figure 1 4:5ust<-■7:'! "4t'Pj: Bu5 bar■ Figure 2 Figure 3 Figure 4
Claims (1)
リード電極と上記絶縁体上で該コモン側リード電極に対
して離隔して対向し、これと千鳥状に並置されたシンク
側リード電極と上記絶縁体上で上記両リード電極に重合
し、これら各電極と電気的に接続された発熱抵抗体を備
えるサーマルヘッドに対し外部回路との接続用に組み込
まれるコモン側プリントサーキット回路に電流回路を補
強するためのブスバーがコモン側プリントサーキット回
路と一体形に形成されていることを特徴とするサーマル
ヘッド。A plurality of common-side lead electrodes arranged side by side at predetermined intervals on the insulator, and sink-side lead electrodes spaced apart from and facing the common-side lead electrodes on the insulator and arranged side by side in a staggered manner. A current circuit is connected to the common side printed circuit circuit incorporated for connection with an external circuit for the thermal head, which is superimposed on both lead electrodes on the insulator and electrically connected to each of these electrodes. A thermal head characterized in that a bus bar for reinforcing the circuit is formed integrally with the common side printed circuit circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28734486A JPS63139755A (en) | 1986-12-01 | 1986-12-01 | Thermal head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28734486A JPS63139755A (en) | 1986-12-01 | 1986-12-01 | Thermal head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63139755A true JPS63139755A (en) | 1988-06-11 |
Family
ID=17716155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28734486A Pending JPS63139755A (en) | 1986-12-01 | 1986-12-01 | Thermal head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63139755A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH039856A (en) * | 1989-06-07 | 1991-01-17 | Kyocera Corp | Thermal head |
| JPH04216961A (en) * | 1990-12-18 | 1992-08-07 | Graphtec Corp | Power supply connection structure of thermal head array |
-
1986
- 1986-12-01 JP JP28734486A patent/JPS63139755A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH039856A (en) * | 1989-06-07 | 1991-01-17 | Kyocera Corp | Thermal head |
| JPH04216961A (en) * | 1990-12-18 | 1992-08-07 | Graphtec Corp | Power supply connection structure of thermal head array |
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