JPS5952671A - Preparation of thermal printing head - Google Patents

Preparation of thermal printing head

Info

Publication number
JPS5952671A
JPS5952671A JP57160959A JP16095982A JPS5952671A JP S5952671 A JPS5952671 A JP S5952671A JP 57160959 A JP57160959 A JP 57160959A JP 16095982 A JP16095982 A JP 16095982A JP S5952671 A JPS5952671 A JP S5952671A
Authority
JP
Japan
Prior art keywords
conductor
printing
resistor
head
thick film
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
JP57160959A
Other languages
Japanese (ja)
Inventor
Yutaka Yamagishi
裕 山岸
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP57160959A priority Critical patent/JPS5952671A/en
Publication of JPS5952671A publication Critical patent/JPS5952671A/en
Pending legal-status Critical Current

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
    • 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)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)

Abstract

PURPOSE:To reduce the irregularity in the resistance value of a heat generator to achieve the quality enhancement of a printing dot, in preparing a thick film type thermal printing head, by together cutting a looped conductor and a rod shaped resistance body formed thereon. CONSTITUTION:Conductors 4 each shortcircuited at both sides thereof and one rod shaped resistance body 5 are formed on a ceramic substrate 2 provided with an under glaze layer 3 by printing and, after the resistance body 5 is baked, the resistance body 5 and the conductors 4 are cut by a dicing saw. At this time, in order to keep the strength of a head, a cutting depth is cared so that the blade of the dicing saw does not reach the ceramic substrate 2.

Description

【発明の詳細な説明】 本発明は厚膜→トーマルプリンＩヘッドに係り、特に発
熱抵抗体の抵抗値ばらつき梢度の向上、及び印字ドツト
の品質向上に好適なサーマルプリントヘッドの製造方法
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thick film to thermal print I head, and more particularly to a method of manufacturing a thermal print head suitable for improving the degree of variation in resistance value of a heating resistor and improving the quality of printed dots.

従来の厚膜サーマルプリント・・ラドは、−ヘッド内の
発熱抵抗体と導体の形状にばらつきがあり、また、導体
と発熱抵抗体の多少の印刷ずれがあるため、ヘッド内及
びヘッド間の抵抗体中の低流密度が一定しておらず、抵
抗値にもばらつきを生じ印字濃度と印字形状がまばらで
ある欠点があった。Conventional thick film thermal printing...RAD: - There are variations in the shape of the heating resistor and conductor in the head, and there is some printing misalignment between the conductor and the heating resistor, so the resistance within the head and between the heads is The disadvantage was that the low flow density in the body was not constant, the resistance value also varied, and the print density and print shape were sparse.

本発明の目的は厚膜サーマルプリントヘッドの欠点で丙
る発熱体抵抗値のばらつきを減少し、印学品−の優れた
厚膜サーマルプリントヘッドの製造方法を提供すること
にある。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing a thick film thermal print head that reduces the variation in resistance value of a heating element, which is a drawback of thick film thermal print heads, and provides excellent printing quality.

上記目的番達成するため、本発明では引き出し配線導体
を抵抗体と一緒に切断することに着目した。すなわち、
ループした導体とその上に形成された棒上の抵抗体を一
緒に切断して、導体と同じ巾のかまほこ状の抵抗体を形
成することにより、抵抗体中の低流密度も一定となり、
さらにドツト間の隙き間も小さくなるため、全体として
印字品質の優れた厚膜サーマルプリントヘッドを得るこ
とができる。In order to achieve the above objective, the present invention focuses on cutting the lead wiring conductor together with the resistor. That is,
By cutting the looped conductor and the resistor on the rod formed on it together to form a semicylindrical resistor with the same width as the conductor, the low current density in the resistor becomes constant.
Furthermore, since the gaps between the dots are also reduced, it is possible to obtain a thick film thermal print head with excellent printing quality as a whole.

以下、本発明によるサーマルヘッドの製造法を図面によ
り詳述する。Hereinafter, a method for manufacturing a thermal head according to the present invention will be explained in detail with reference to the drawings.

第１図は、従来の厚膜サーマルプリントヘッドの一般的
な・導体の平面図、第２図は第１図に発熱抵抗体を加え
た平面図、第３図は本発明による厚膜サーマルプリント
ヘッドの導体の平面図、８４図は第３図に発熱抵抗体を
／ＩＯんだ平面図、第５図は本発明による厚膜ザー゛１
ルプリントヘッドの断面図を表わす。Fig. 1 is a plan view of a general conductor of a conventional thick film thermal print head, Fig. 2 is a plan view of Fig. 1 with a heating resistor added, and Fig. 3 is a plan view of a thick film thermal print head according to the present invention. 84 is a plan view of the conductor of the head, FIG. 3 is a plan view of the heating resistor /IO, and FIG.
FIG. 3 represents a cross-sectional view of the print head.

厚膜サーマルプリントヘッドは第５図に示すようにセラ
ミツク基板１１アンダーグレーズ層２、導体３、発熱抵
抗体４、オーバーコート５により構成される。従来の印
刷技術による厚膜サーマルプリントヘッドは、第１図、
第２図に示すような導体と抵抗体を印刷のみにより形成
するが、本発明では第３図に示すような両側がシーート
した導体と、一本の棒状の抵抗体を印刷により形成し、
抵抗体焼成後にダイシングソーで、位置をコントロール
しながら抵抗体と導体を切断する。このとき、ヘッドの
強度を保つためにダイシングソーのブ１／−ドがセラミ
ック外板まで達しないように切断の深さを注意する必要
がある。The thick film thermal print head is composed of a ceramic substrate 11, an underglaze layer 2, a conductor 3, a heating resistor 4, and an overcoat 5, as shown in FIG. A thick film thermal print head using conventional printing technology is shown in Figure 1.
A conductor and a resistor as shown in FIG. 2 are formed by printing only, but in the present invention, a conductor with sheets on both sides and a single rod-shaped resistor as shown in FIG. 3 are formed by printing,
After firing the resistor, use a dicing saw to cut the resistor and conductor while controlling the position. At this time, in order to maintain the strength of the head, it is necessary to be careful about the depth of the cut so that the blade of the dicing saw does not reach the ceramic outer plate.

本発明によれば、導体中と抵抗体＋１３を同じにし、導
体と抵抗体の印刷ずれを無くずことか可能となり、さら
に−ヘッド内の複数個の抵抗体の間隔を短くして抵抗体
の大きさを一定にすることができるので、抵抗値のばら
つきが少なくなり、印字濃度にもむらが無くなり、印字
ドツト間隔が縦横共短い高品質の印字が得られる効果が
ある。According to the present invention, it is possible to make the conductor and the resistor +13 the same, thereby eliminating printing misalignment between the conductor and the resistor, and furthermore, by shortening the intervals between the plurality of resistors in the head, Since the size can be made constant, there are fewer variations in resistance value, there is no unevenness in printing density, and high quality printing with short printing dot intervals in both vertical and horizontal directions can be obtained.

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

第１図は従来の厚膜サーマルプリントヘッドの導体平面
図、第２図は第１図に発熱抵抗体を加えた平面図、第３
図は本発明の一実施例の厚膜サーマルプリントヘッドの
導体平面図、第４図は第３図に発熱抵抗体を加えた平面
図、＠５図は第４図の部分拡大図、第６図は第５図のＡ
−Ａ／線断面図である。 １・・・ヘッド基板　　　　２・・・セラミック３・・
・アンダーグレーズ層 ４・・・導体　　　　　　　５・・・抵抗体６ａ〜６ｈ
・・・切断溝 ７・・・耐摩耗オーバーコートガラス Ａ　−Ａ’・・・切断線 代理人弁理士　淘　１）利　幸 、′、、：４−．．．。 亭　　　　　　　　　　　　　　　　　　　　　　　　
４第Ｓ図 牛 第６図Figure 1 is a plan view of the conductor of a conventional thick film thermal print head, Figure 2 is a plane view of Figure 1 with a heating resistor added, and Figure 3 is a plan view of the conductor of a conventional thick film thermal print head.
The figure is a plan view of a conductor of a thick film thermal print head according to an embodiment of the present invention, FIG. 4 is a plan view of FIG. 3 with a heating resistor added, FIG. 5 is a partially enlarged view of FIG. The figure is A in Figure 5.
-A/ line sectional view. 1...Head board 2...Ceramic 3...
・Underglaze layer 4...Conductor 5...Resistor 6a to 6h
... Cutting groove 7 ... Abrasion-resistant overcoat glass A-A' ... Cutting line Patent attorney Tao 1) Toshiyuki, ', :4-. ．． ．． . Tei
4S figure Cow figure 6

Claims (1)

【特許請求の範囲】[Claims] １、厚膜印刷技術により、基板、、ヒにグレーズ層、導
体、発熱抵抗体、オーバー−コートカラスが形成される
サーマルプリントヘッドの製造方法において、ダイシン
グにより基板上に形成した、短冊状発熱抵抗体を切断し
て複数個の発熱素子を得るときに、抵抗体と同時にグレ
ーズ層の間の導体も切断することを特徴とするサーマル
プリントヘッドの製造方法。1. In a method for manufacturing a thermal print head in which a glaze layer, a conductor, a heating resistor, and an overcoat glass are formed on a substrate using thick film printing technology, a strip-shaped heating resistor is formed on a substrate by dicing. A method for manufacturing a thermal print head, characterized in that when cutting a body to obtain a plurality of heating elements, a conductor between the glaze layers is also cut at the same time as the resistor.
JP57160959A 1982-09-17 1982-09-17 Preparation of thermal printing head Pending JPS5952671A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57160959A JPS5952671A (en) 1982-09-17 1982-09-17 Preparation of thermal printing head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57160959A JPS5952671A (en) 1982-09-17 1982-09-17 Preparation of thermal printing head

Publications (1)

Publication Number Publication Date
JPS5952671A true JPS5952671A (en) 1984-03-27

Family

ID=15725880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57160959A Pending JPS5952671A (en) 1982-09-17 1982-09-17 Preparation of thermal printing head

Country Status (1)

Country Link
JP (1) JPS5952671A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6291558A (en) * 1985-10-18 1987-04-27 Shin Etsu Chem Co Ltd Steam-resistant silicone rubber composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6291558A (en) * 1985-10-18 1987-04-27 Shin Etsu Chem Co Ltd Steam-resistant silicone rubber composition
JPH0552857B2 (en) * 1985-10-18 1993-08-06 Shinetsu Chem Ind Co

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