JPH0280260A - Thermal head - Google Patents
Thermal headInfo
- Publication number
- JPH0280260A JPH0280260A JP23191588A JP23191588A JPH0280260A JP H0280260 A JPH0280260 A JP H0280260A JP 23191588 A JP23191588 A JP 23191588A JP 23191588 A JP23191588 A JP 23191588A JP H0280260 A JPH0280260 A JP H0280260A
- Authority
- JP
- Japan
- Prior art keywords
- heating resistors
- heating
- resistors
- thermal head
- lead electrodes
- 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
Links
- 239000000758 substrate Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 abstract description 48
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000009826 distribution Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 230000020169 heat generation Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 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
Landscapes
- Electronic Switches (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は、例えば感熱記録装置に適用されるサーマルヘ
ッドに関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a thermal head applied to, for example, a thermal recording device.
（従来の技術）
一般にサーマルヘッドは、絶縁基板上に複数の方形状の
発熱抵抗体が所定の間隔で平行に配設され、これらの複
数の発熱抵抗体を通電駆動することによって発熱抵抗体
を発熱せしめ、このサマルヘッドに対峙して配設された
感熱式記録用紙を発色させたり、インクフィルムのイン
クを記録用紙に転写したりすることによって記録を行な
うものとなっている。(Prior Art) Generally, in a thermal head, a plurality of rectangular heating resistors are arranged in parallel on an insulating substrate at predetermined intervals, and the heating resistors are activated by driving the plurality of heating resistors with electricity. Recording is performed by generating heat to color a thermal recording paper disposed facing the thermal head, or by transferring ink from an ink film onto the recording paper.
ところが、以上の一般的なサーマルヘッドでは発熱抵抗
体中を電流が均等に流れるため、通電する電流値を変化
させても精度良くドツトの大きさを変えることができず
、階調記録には適さないものとなっている。そこで、発
熱抵抗体の発熱部の形状を平行四辺形として発熱抵抗体
の中心部に電流が集中するようにし、通電する電流量を
変化させることによりドツトの大きさを精度良く可変し
、鮮明な階調記録を行なえるようにしたサーマルヘッド
が考えられている。However, in the general thermal head described above, the current flows uniformly through the heating resistor, so even if the current value is changed, the size of the dot cannot be changed accurately, making it unsuitable for gradation recording. It has become something that does not exist. Therefore, the shape of the heat generating part of the heat generating resistor is made into a parallelogram so that the current is concentrated in the center of the heat generating resistor, and by changing the amount of current flowing, the size of the dot can be varied with high precision, and the dot can be clearly seen. A thermal head capable of performing gradation recording has been considered.
第５図はこのサーマルヘッドの構成を示す図であり、こ
のサーマルヘッドは例えばセラミックスまたはアルミナ
からなる絶縁基板１上に、発熱部となる中間部がその配
列方向に対して所定の角度を角゛する平行四辺形をなし
、また両端部が方形状をなす複数の発熱抵抗体２ａ、２
ｂ・・・を所定の間隔で平行に配設し、かつこれらの発
熱抵抗体２ａ。FIG. 5 is a diagram showing the configuration of this thermal head. This thermal head is mounted on an insulating substrate 1 made of, for example, ceramics or alumina, and an intermediate portion serving as a heat generating portion is arranged at a predetermined angle with respect to the arrangement direction. A plurality of heating resistors 2a, 2 each having a parallelogram shape and having square ends at both ends.
b... are arranged in parallel at predetermined intervals, and these heating resistors 2a.
２ｂ・・・の上記方形状をなしている両端部にこの発熱
抵抗体２ａ、２ｂ・・・と同幅で方形状のｆｆ１ｌのリ
ード電極３ａ、３ｂ・・・および第２のリード電極４ａ
、４ｂ・・・をそれぞれ重ねて設けたものである。Lead electrodes 3a, 3b, . . . and a second lead electrode 4a, which are rectangular in width and have the same width as the heat generating resistors 2a, 2b, .
, 4b, . . . are provided one on top of the other.
なお、５ａ、５ｂ・・・および６ａ、６ｂ・・・は上記
第１および第２のリード電極３ａ、３ｂ・・・および４
ａ、４ｂ・・・に接続された第１および第２の外部端子
である。Note that 5a, 5b... and 6a, 6b... are the first and second lead electrodes 3a, 3b... and 4.
These are first and second external terminals connected to terminals a, 4b, .
ところで、以上の如く構成されたサーマルヘッドは薄膜
技術を用いて例えば次のように作成される。すなわち、
第６図にその断面構造を示すように、絶縁基板１上にま
ずガラス等の保温層（熱抵抗層）７を形成し、その上に
発熱抵抗体用のマスクをセットして例えば窒化タンタル
、ニクロムまたは酸化すず等をスパッタ蒸着することに
より発熱抵抗体２ａ、２ｂ・・・を形成する。そして、
これらの上に電極材の層を形成したのち、この電極材層
の上の所定位置に電極用マスクを位置合わせしてセット
し、フォトエツチング（Ｐ Ｅ Ｐ）によって同一マス
ク上で第１および第２のリード電極３ａ、３ｂ・・・お
よび４ａ、４ｂ・・・をそれぞれ形成する。更に、これ
らの上に酸化防止用の耐酸化層（抵抗体保護層）８およ
び耐摩耗層９を順次塗布して形成する。By the way, the thermal head configured as described above is manufactured using thin film technology, for example, as follows. That is,
As shown in FIG. 6, a heat insulating layer (thermal resistance layer) 7 made of glass or the like is first formed on the insulating substrate 1, and a mask for the heat generating resistor is set on it. The heating resistors 2a, 2b, . . . are formed by sputter-depositing nichrome, tin oxide, or the like. and,
After forming an electrode material layer on these, an electrode mask is aligned and set at a predetermined position on this electrode material layer, and the first and second electrodes are formed on the same mask by photo etching (P E P). Two lead electrodes 3a, 3b, . . . and 4a, 4b, . . . are formed, respectively. Furthermore, an oxidation-resistant layer (resistor protection layer) 8 and an abrasion-resistant layer 9 for preventing oxidation are sequentially applied thereon.
ところが、前記従来のサーマルヘッドは、先に述べたよ
うに発熱抵抗体２ａ、２ｂ・・・の両端部に対しその幅
と同じ幅の第１および第２のリード電極３ａ、 ３ｂ・
・・および４ａ、４ｂ・・・を重ねる状態で形成する。However, as described above, in the conventional thermal head, the first and second lead electrodes 3a, 3b, which have the same width as the widths of the heating resistors 2a, 2b, .
...and 4a, 4b... are formed in an overlapping state.
このため、第１および第２のリード電極３ａ、３ｂ・・
・および４ａ、４ｂ・・・を形成する際に、電極用マス
クのセット位置が発熱抵抗体２ａ、２ｂ・・・の配列方
向にずれると、発熱抵抗体２ａ、２ｂ・・・に対する第
１および第２のリード電極３ａ、３ｂ・・・および４ａ
、４ｂ・・・の形成位置が例えば第７図に示す如くずれ
てしまう。また電極用マスクのセット位置が発熱抵抗体
２ａ、２ｂ・・・の配列方向と直交する方向にずれた場
合には、発熱抵抗体２ａ、２ｂ・・・に対する第１およ
び第２のリード電極３ａ、３ｂ・・・および４ａ、４ｂ
・・・の形成位置が例えば第８図に示す如くずれてしま
う。Therefore, the first and second lead electrodes 3a, 3b...
and 4a, 4b..., if the set position of the electrode mask shifts in the arrangement direction of the heating resistors 2a, 2b..., the first and Second lead electrodes 3a, 3b... and 4a
, 4b, . . . are shifted as shown in FIG. 7, for example. Furthermore, if the set position of the electrode mask is shifted in a direction perpendicular to the arrangement direction of the heat generating resistors 2a, 2b..., the first and second lead electrodes 3a for the heat generating resistors 2a, 2b... , 3b... and 4a, 4b
. . , the formation positions are shifted as shown in FIG. 8, for example.
このように発熱抵抗体２ａ、２ｂ・・・に対する第１お
よび第２のリード電極３ａ、３ｂ・・・および４ａ。In this way, the first and second lead electrodes 3a, 3b, . . . and 4a for the heating resistors 2a, 2b, .
４ｂ・・・の形成位置がずれてしまうと、発熱抵抗体２
ａ、２ｂ・・・と第１および第２のリード電極３ａ。If the formation position of 4b... is shifted, the heating resistor 2
a, 2b... and the first and second lead electrodes 3a.
３ｂ・・・および４ａ、４ｂ・・・との接続幅や発熱抵
抗体２ａ、 ２ｂ・・・の発熱部の形状が変化し、発
熱抵抗体２ａ、２ｂ・・・中における電流の分布が所期
のものと異なってしまう。これにより、所定の発熱を得
ることができず、正確かつ鮮明に階調記録を行なうこと
ができない。The connection width with 3b... and 4a, 4b... and the shape of the heat generating part of the heat generating resistors 2a, 2b... change, and the current distribution in the heat generating resistors 2a, 2b... changes. It will be different from the period one. As a result, it is not possible to obtain a predetermined amount of heat generation, and accurate and clear gradation recording cannot be performed.
以上の不具合を解消するには、ＰＥＰ工程における電極
用マスクの位置合わせを精度良く行なわなければならな
いが、発熱抵抗体２ａ、２ｂ・・・の配列方向の位置合
わせと、発熱抵抗体２ａ、２ｂ・・・の配列方向と直交
する方向との両方の位置合わせを精度良く行なわなけれ
ばならないため、その位置合わせの作業は非常に煩わし
い上に、常に精度良く位置合わせすることは困難である
。In order to eliminate the above-mentioned problems, it is necessary to accurately align the electrode mask in the PEP process, but it is necessary to align the heating resistors 2a, 2b, etc. in the arrangement direction, and to . . must be precisely aligned both in the arrangement direction and in the orthogonal direction, so the alignment work is extremely troublesome and it is difficult to always align accurately.
（発明が解決しようとする課題）
以上の如〈従来のサーマルヘッドは、製造時において電
極用マスクの位置合わせは発熱抵抗体の配列方向と、発
熱抵抗体の配列方向と直交する方向との両方で精度良く
行なわなければならないため、その作業が非常に煩しい
上に、常に精度良く位置合わせすることが困難であると
いう不具合を有するものである。(Problems to be Solved by the Invention) As described above, in the conventional thermal head, during manufacturing, the electrode mask is aligned both in the direction in which the heating resistors are arranged and in a direction perpendicular to the direction in which the heating resistors are arranged. This operation is extremely troublesome because it has to be carried out with high precision, and it also has the disadvantage that it is difficult to always perform position alignment with high precision.
本発明はこのような事情を考慮してなされたもので、そ
の目的とするところは、製造時における電極用マスクの
位置合わせの精度をあまり必要とせずに所期の発熱状態
を得ることができ、これによりマスクの位置合わせ作業
を容易にし、常に最適な発熱状態を得られるサーマルヘ
ッドを提供することにある。The present invention was made in consideration of these circumstances, and its purpose is to obtain the desired heat generation state without requiring much precision in positioning the electrode mask during manufacturing. The purpose of the present invention is to provide a thermal head that facilitates the mask positioning work and always provides an optimal heat generation state.
［発明の構成］
（課題を解決するための手段）
本発明は、絶縁基板上に発熱部となる中間部がその配列
方向に対して所定の角度を有する平行四辺形をなす複数
の発熱抵抗体を所定の間隔で平行に配列形成すると共に
、前記複数の発熱抵抗体の電極形成用の両端部に一対の
板状をなすリード電極を位置合せしてなるサーマルヘッ
ドにおいて、前記発熱抵抗体の電極形成用の両端部の形
状を中間部と同じ角度の平行四辺形とするようにした。[Structure of the Invention] (Means for Solving the Problems) The present invention provides a plurality of heat generating resistors in the form of a parallelogram, the middle portion of which becomes a heat generating portion is formed on an insulating substrate and has a predetermined angle with respect to the direction in which the heat generating resistors are arranged. are arranged in parallel at predetermined intervals, and a pair of plate-shaped lead electrodes are aligned at both ends of the plurality of heating resistors for forming electrodes. The shape of both ends for forming was made into a parallelogram having the same angle as the middle part.
（作用）
このような手段を講じたことにより、製造時において電
極用マスクが発熱抵抗体の配列方向と直交する方向へ若
干ずれても、発熱抵抗体の配列方向の位置合わせが厳密
に行なわれていれば、発熱抵抗体とリード電極との接続
幅や発熱抵抗体の発熱部の形状は変化せず、発熱抵抗体
中の電流分布は変化しない。従って、電極用マスクの位
置合わせ作業は発熱抵抗体の配列方向の位置合わせのみ
を厳密に行なえば良く、電極用マスクの位置合わせ作業
は容易になる。(Function) By taking such measures, even if the electrode mask is slightly misaligned in the direction perpendicular to the arrangement direction of the heating resistors during manufacturing, the positioning in the arrangement direction of the heating resistors will be performed strictly. If so, the connection width between the heat generating resistor and the lead electrode and the shape of the heat generating portion of the heat generating resistor do not change, and the current distribution in the heat generating resistor does not change. Therefore, the positioning work of the electrode mask only needs to be strictly performed in the arrangement direction of the heating resistors, and the positioning work of the electrode mask becomes easy.
（実施例） 以下、図面を参照して本発明の実施例につき説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例に係るサーマルヘッドの構成
を示す図である。なお、第５図と同一部分には同一符号
を付し、その詳細な説明は省略する。FIG. 1 is a diagram showing the configuration of a thermal head according to an embodiment of the present invention. Note that the same parts as in FIG. 5 are given the same reference numerals, and detailed explanation thereof will be omitted.
同図中、１１ ａ、 １ ｌ ｂ・・・は発熱抵抗体
であり、発熱部となる中間部および両端部の全てがその
配列方向に対して所定の角度を有する平行四辺形となっ
ている。そして、この発熱抵抗体１１ａ。In the same figure, 11a, 1lb... are heating resistors, and the middle part and both ends, which serve as heating parts, are all parallelograms having a predetermined angle with respect to the arrangement direction. . And this heating resistor 11a.
１１ｂ・・・の両端部にはこの発熱抵抗体１１ａ。This heating resistor 11a is provided at both ends of 11b.
１１ｂ・・・と同じ角度の平行四辺形をなす第１および
第２のリード電極１２ａ、１２ｂ・・・および１３ａ、
１３ｂ・・・がそれぞれ重ねて配設されている。First and second lead electrodes 12a, 12b... and 13a forming a parallelogram having the same angle as 11b...
13b... are arranged one on top of the other.
しかして、以上の構成のサーマルヘッドでは、製造時に
おいて電極用マスクが発熱抵抗体１１ａ。Therefore, in the thermal head having the above configuration, the electrode mask is the heating resistor 11a at the time of manufacture.
１１ｂ・・・の配列方向と直交する方向にずれても、発
熱抵抗体１１ａ、ｌｌｂ・・・の配列方向の位置合わせ
が厳密に行なわれており、かつ発熱抵抗体１１ａ、ｌｌ
ｂ・・・の配列方向と直交する方向へのずれが第１のリ
ード電極１２ａ、１２ｂ・・・または第２のリード電極
１３ａ、１３ｂ・・・が発熱抵抗体１１ａ、ｌｌｂ・・
・から完全に脱しない程度であれば、例えば第２図に示
す如く発熱抵抗体１１ａ。Even if the heating resistors 11a, llb... are misaligned in the direction perpendicular to the arrangement direction of the heating resistors 11a, llb..., the positioning of the heating resistors 11a, llb, .
The deviation in the direction perpendicular to the arrangement direction of b... causes the first lead electrodes 12a, 12b... or the second lead electrodes 13a, 13b... to become the heating resistors 11a, llb...
・If the heating resistor 11a does not completely escape from the heating resistor 11a as shown in FIG.
１１ｂ・・・と第１および第２のリード電極１２ａ。11b... and the first and second lead electrodes 12a.
１２ｂ・・・および１３ａ、１３ｂ・・・との接続幅は
所期のものと変わらず、また発熱抵抗体２ａ、２ｂ・・
・の発熱部の形状も所期の平行四辺形となる。これによ
り、発熱抵抗体２ａ、２ｂ・・・中における電流分布も
所期のものと変らない。The connection widths with 12b... and 13a, 13b... are the same as expected, and the heating resistors 2a, 2b...
The shape of the heat generating part also becomes the expected parallelogram. As a result, the current distribution in the heating resistors 2a, 2b, . . . does not change from the expected one.
すなわち、本サーマルヘッドでは製造時における電極用
マスクの位置合わせ作業は一方向だけの位置合わせを厳
密に行なうだけで良く、その作業は容易になる。That is, in the present thermal head, the positioning work of the electrode mask during manufacturing only needs to be strictly performed in one direction, which makes the work easy.
第３図は本発明の別の実施例に係るサーマルヘッドの構
成を示す図である。なお、第１図および第５図と同一部
分には同一符号を付し、その詳細な説明を省略する。FIG. 3 is a diagram showing the configuration of a thermal head according to another embodiment of the present invention. Note that the same parts as in FIGS. 1 and 5 are denoted by the same reference numerals, and detailed explanation thereof will be omitted.
ここで本実施例が特徴とするところは、発熱部となる中
間部および電極形成用の両端部の全てがその配列方向に
対して所定の角度を有する平行四辺形をなす発熱抵抗体
１１ａ、ｌｌｂ・・・の両端部に従来と同様な方形状の
第１および第２のリード電極３ａ、３ｂ・・・および４
ａ、４ｂ・・・をそれぞれ重ねて配設した点である。Here, the feature of this embodiment is that the heating resistors 11a and 11b are in the form of a parallelogram in which the intermediate portion serving as the heating portion and both end portions for forming electrodes form a parallelogram having a predetermined angle with respect to the arrangement direction. The first and second lead electrodes 3a, 3b, . . . and 4, which have a rectangular shape similar to the conventional ones, are provided at both ends of the
A, 4b, . . . are arranged one on top of the other.
このサーマルヘッドによれば、前述した実施例と同様に
して例えば第４図に示す如く発熱抵抗体１１ａ、ｌｌｂ
・・・と第１および第２のリード電極３ａ、３ｂ・・・
および４ａ、４ｂ・・・との接続幅は所期のものと変わ
らず、また発熱抵抗体２ａ、２ｂ・・・の発熱部の形状
も所期の平行四辺形となる。According to this thermal head, heating resistors 11a, llb, as shown in FIG.
... and the first and second lead electrodes 3a, 3b...
and 4a, 4b, . . . and 4a, 4b, .
従って、前述した実施例と同様な効果を得ることができ
る。Therefore, effects similar to those of the embodiments described above can be obtained.
なお、本発明は上記各実施例に限定されるものではない
。たとえば、上記各実施例では発熱抵抗体を全て平行四
辺形としたが、発熱抵抗体の中間部および両端部の中間
部側の一部のみ平行四辺形とすれば良く、それ以外の部
分の形状は規定されない。このほか、本発明の要旨を逸
脱しない範囲で種々の変形実施が可能である。Note that the present invention is not limited to the above embodiments. For example, in each of the above embodiments, all the heating resistors are parallelograms, but only the middle part of the heating resistor and the part on the middle part side of both ends need to be parallelograms, and the shape of the other parts is is not specified. In addition, various modifications can be made without departing from the gist of the present invention.
［発明の効果］
本発明によれば、絶縁基板上に発熱部となる中間部がそ
の配列方向に対して所定の角度を有する平行四辺形をな
す複数の発熱抵抗体を所定の間隔で平行に配列形成する
と共に、前記複数の発熱抵抗体の電極形成用の両端部に
一対の板状をなすリード電極を位置合せしてなるサーマ
ルヘッドにおいて、前記発熱抵抗体の電極形成用の両端
部の形状を中間部と同じ角度の平行四辺形とするように
したので、製造時における電極用マスクの位置合わせの
精度をあまり必要とせずに所期の発熱状態を得ることが
でき、これによりマスクの位置合わせ作業を容易にし、
常に最適な発熱状態を得られるサーマルヘッドとなる。[Effects of the Invention] According to the present invention, a plurality of heat generating resistors each having a parallelogram shape and having an intermediate portion serving as a heat generating portion at a predetermined angle with respect to the arrangement direction of the heat generating resistors are arranged in parallel at a predetermined interval on an insulating substrate. In a thermal head formed by forming an array and aligning a pair of plate-shaped lead electrodes to both ends of the plurality of heat generating resistors for forming electrodes, the shape of both ends of the heat generating resistors for forming electrodes. Since it is made into a parallelogram with the same angle as the middle part, it is possible to obtain the desired heating state without requiring much precision in positioning the electrode mask during manufacturing. Makes alignment work easier,
This is a thermal head that always provides optimal heat generation conditions.
第１図乃至第４図は本発明の詳細な説明する図であり、
第１図は一実施例に係るサーマルヘッドの構成を示す図
、第２図は第１図のサーマルヘッドおけるリード電極の
ずれの状態の一例を示す図、第３図は別の実施例に係る
サーマルヘッドの構成を示す図、第４図は第３図のサー
マルヘッドにおけるリード電極のずれの状態の一例を示
す図、第５図乃至第８図はそれぞれ従来の技術を説明す
る図である。
１・・・絶縁基板、２ａ、２ｂ・・・ ・・・発熱抵抗
体、３ ａ 、 ３ ｂ ・、 １２ ａ 、 １
２ ｂ −・−・−第１のリード電極、４ ａ、 ４
ｂ−、１３ａ、 １３ ｂ−−−−−−第２のリード
電極。
出願人代理人 弁理士 鈴江武彦
第６図1 to 4 are diagrams for explaining the present invention in detail,
FIG. 1 is a diagram showing the configuration of a thermal head according to one embodiment, FIG. 2 is a diagram showing an example of the state of misalignment of the lead electrodes in the thermal head of FIG. 1, and FIG. FIG. 4 is a diagram showing an example of the misalignment of the lead electrodes in the thermal head of FIG. 3, and FIGS. 5 to 8 are diagrams each illustrating a conventional technique. DESCRIPTION OF SYMBOLS 1...Insulating substrate, 2a, 2b......Heating resistor, 3a, 3b..., 12a, 1
2 b -・-・-first lead electrode, 4 a, 4
b-, 13a, 13b---Second lead electrode. Applicant's agent Patent attorney Takehiko Suzue Figure 6
Claims (1)
て所定の角度を有する平行四辺形をなす複数の発熱抵抗
体を所定の間隔で平行に配列形成すると共に、前記複数
の発熱抵抗体の電極形成用の両端部に一対の板状をなす
リード電極を位置合せしてなるサーマルヘッドにおいて
、 前記発熱抵抗体の電極形成用の両端部の形状を中間部と
同じ角度の平行四辺形としたことを特徴とするサーマル
ヘッド。[Scope of Claims] A plurality of heat-generating resistors are arranged in parallel at a predetermined interval on an insulating substrate, each having a parallelogram shape with an intermediate portion serving as a heat-generating portion making a predetermined angle with respect to the arrangement direction thereof; In a thermal head formed by aligning a pair of plate-shaped lead electrodes to both ends of the plurality of heat generating resistors for forming electrodes, the shape of both ends of the heat generating resistors for forming electrodes is the same as that of the middle part. A thermal head characterized by having a parallelogram-shaped angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63231915A JP2837853B2 (en) | 1988-09-16 | 1988-09-16 | Thermal head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63231915A JP2837853B2 (en) | 1988-09-16 | 1988-09-16 | Thermal head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0280260A true JPH0280260A (en) | 1990-03-20 |
| JP2837853B2 JP2837853B2 (en) | 1998-12-16 |
Family
ID=16931054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63231915A Expired - Fee Related JP2837853B2 (en) | 1988-09-16 | 1988-09-16 | Thermal head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2837853B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2017169237A1 (en) * | 2016-03-28 | 2019-02-07 | コニカミノルタ株式会社 | Inkjet recording apparatus and recording control method for inkjet recording apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58208076A (en) * | 1982-05-31 | 1983-12-03 | Hitachi Ltd | Heat sensitive recording head |
| JPS6154956A (en) * | 1984-08-27 | 1986-03-19 | Kyocera Corp | Thermal head |
-
1988
- 1988-09-16 JP JP63231915A patent/JP2837853B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58208076A (en) * | 1982-05-31 | 1983-12-03 | Hitachi Ltd | Heat sensitive recording head |
| JPS6154956A (en) * | 1984-08-27 | 1986-03-19 | Kyocera Corp | Thermal head |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2017169237A1 (en) * | 2016-03-28 | 2019-02-07 | コニカミノルタ株式会社 | Inkjet recording apparatus and recording control method for inkjet recording apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2837853B2 (en) | 1998-12-16 |
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