JPS59114077A - Thermal head - Google Patents

Thermal head

Info

Publication number
JPS59114077A
JPS59114077A JP57223751A JP22375182A JPS59114077A JP S59114077 A JPS59114077 A JP S59114077A JP 57223751 A JP57223751 A JP 57223751A JP 22375182 A JP22375182 A JP 22375182A JP S59114077 A JPS59114077 A JP S59114077A
Authority
JP
Japan
Prior art keywords
resistant layer
generating resistor
heat generating
wear resistant
wear
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
JP57223751A
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 JP57223751A priority Critical patent/JPS59114077A/en
Publication of JPS59114077A publication Critical patent/JPS59114077A/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
    • B41J2/335—Structure of thermal heads

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To achieve an excellent printing with limited power consumption by forming a wear resistant layer broad on both sides of a heat generating resistor instead of on the surface thereof to bring the heat generating resistor into direct contact with a thermosensitive paper without passing through the wear resistant layer when a prnting is performed. CONSTITUTION:A thick wear resistant layer 5 is formed on both sides of a heat generating resistor 4, while a wear resistant layer 5 of the same thickness is formed on the surface thereof 4. Then, the wear resistant layer 5 on the surface of the heat generating resistor 4 is ground and the operation is stopped when the surface of the heat generating resistor 4 is exposed to form a thermal head. In the thermal head thus obtained, the heat generating resistor 4 is exposed and directly rubs with a heat-sensitive paper but the wear of the resistor 4 is not much because the wear resistant layer 5 provids a guard in the lateral for the heat generating resistor 4. When printing, heat generated from the heat generating resistor 4 is transmitted directly to the thermosensitive paper and thus, the power consumption is expected to be reduced by more than 20%.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明はサーマルヘッドの構造に係り、時延。[Detailed description of the invention] [Field of application of the invention] The present invention relates to the structure of a thermal head and has been delayed for some time.

少ない消費電力で印字品質の優れたサーマルへラドに関
する。　　　　　　　　　　　　　　　　１□。Regarding thermal helads with low power consumption and excellent print quality. 1□.

〔従来技術〕[Prior art]

従来のサーマルヘッドは発熱抵抗体表面が耐摩耗層で覆
われていたため、印字の際発熱抵抗体より発生した熱が
感熱紙まで到達する間に耐摩耗層で吸収、散乱され、大
きな電力を要し。In conventional thermal heads, the surface of the heating resistor is covered with a wear-resistant layer, so the heat generated by the heating resistor during printing is absorbed and scattered by the wear-resistant layer before reaching the thermal paper, requiring a large amount of power. death.

印字ドツト品質が悪くなる欠点があった。There was a drawback that the quality of printed dots deteriorated.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、前述した耐摩耗層による熱・の吸収、
散乱を無くシ１発熱抵抗体より発生し・た熱が直接感熱
紙に伝わり、少ない消費電力で品質の優れた印字を行な
うことができるサーマ。The purpose of the present invention is to absorb heat and heat by the wear-resistant layer mentioned above.
Thermal technology eliminates scattering and allows the heat generated by the heating resistor to be transmitted directly to the thermal paper, allowing for high-quality printing with low power consumption.

ルヘッドの構造を提供することにある。The aim is to provide a head structure.

〔発明の概要〕[Summary of the invention]

一ヒ記目的を達成するため、本発明では、従来。 In order to achieve the above object, the present invention overcomes the conventional techniques.

発熱抵抗体表面にあった耐摩耗層を発熱体の両。The wear-resistant layer on the surface of the heating resistor is applied to both sides of the heating element.

サイドに形成することに着目し、耐摩耗層を狐広くある
程度の厚みをもって発熱抵抗体上に形成した後１発熱抵
抗体が露出するまで耐摩耗層を研摩してサーマルヘッド
を創造する。Focusing on forming the layer on the side, a thermal head is created by forming a wear-resistant layer on the heating resistor with a wide width and a certain thickness, and then polishing the wear-resistant layer until one heating resistor is exposed.

〔発明の実施例〕１゜ 以下１本発明によるサーマルへラドノー実施例を図によ
り説明する。[Embodiments of the Invention] Below 1° An embodiment of the thermal radar according to the present invention will be explained with reference to the drawings.

第１図は従来の構造のサーマルヘッドの断面図である。FIG. 1 is a sectional view of a thermal head having a conventional structure.

従来のサーマルヘッドについて耐摩耗層のみを部分的に
再び形成したものが第２図に示す構造であり１発熱抵抗
体両サイドに厚い耐摩耗層が形成されることになる。こ
のとき発熱抵抗体表面上にも同じ厚さの耐摩耗層が形成
・されることになる。次に発熱抵抗体表面上の耐・摩耗
層を研摩し１発熱抵抗体表面が露出した時・点で研摩を
止め、第３図圧示す構造のサーマルヘッドとなる。この
構造により発熱抵抗体が露出し感熱紙と直接こすれるこ
とになるが１発熱抵抗体横方向に耐摩耗層のガードがあ
るため抵抗体の摩耗は僅かなものとなる。本実施例によ
。The structure shown in FIG. 2 is a conventional thermal head in which only the wear-resistant layer is partially re-formed, and thick wear-resistant layers are formed on both sides of one heating resistor. At this time, a wear-resistant layer of the same thickness is also formed on the surface of the heating resistor. Next, the wear-resistant layer on the surface of the heating resistor is polished, and the polishing is stopped when the surface of the heating resistor 1 is exposed, resulting in a thermal head having the structure shown in the third diagram. With this structure, the heating resistor is exposed and directly rubs against the thermal paper, but since there is a guard of an abrasion resistant layer in the lateral direction of each heating resistor, the wear of the resistor is slight. According to this example.

れば研摩する膜厚のコントロールにより抵抗値調整の効
果がある。If so, the resistance value can be adjusted by controlling the thickness of the polished film.

〔発明の効果〕 本発明によれば印字の際発熱抵抗体より発生した熱が耐
摩耗層で吸収、散乱されることな≦。[Effects of the Invention] According to the present invention, the heat generated by the heating resistor during printing is not absorbed or scattered by the wear-resistant layer.

直接感熱紙に伝わるため、２割以上の消費電力低減が期
待でき、また印字品質向上の効果がある。Since it is transmitted directly to the thermal paper, it is expected to reduce power consumption by more than 20%, and also has the effect of improving print quality.

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

第１図は従来のサーマルヘッドの構造を示す断面図、第
２図は部分的に耐摩耗層を厚く形成・したサーマルヘッ
ドの構造を示す断面図、第３・図は本発明の一実施例に
よるサーマルヘッドの・構造を示す断面図である。 １・・・アルミナ基板、　　　　　　　　　　　　５２
・・・蓄熱アンダーグレーズ層、 ３・・・導体。 ４・・・発熱抵抗体。 ５・・・耐摩耗層。 ０ ５Fig. 1 is a sectional view showing the structure of a conventional thermal head, Fig. 2 is a sectional view showing the structure of a thermal head partially formed with a thick wear-resistant layer, and Fig. 3 is an embodiment of the present invention. FIG. 2 is a sectional view showing the structure of a thermal head according to. 1... Alumina substrate, 52
...Heat storage underglaze layer, 3...Conductor. 4... Heat generating resistor. 5...Abrasion resistant layer. 0 5

Claims (1)

【特許請求の範囲】 １、　セラミック基板上の蓄熱層、導体１発熱抵・抗体
耐摩耗層より成るサーマルヘッドにおいで３耐摩耗層が
発熱抵抗体表面には形成されず１発・熱抵抗体の両サイ
ドに幅広く形成され、印字の。 際発熱抵抗体は耐摩耗層を通さずに直接感熱紙と接触し
１両側にある耐摩耗層により保護されることを特徴とす
るサーマルヘッド。　　　　１゜[Claims] 1. In a thermal head consisting of a heat storage layer on a ceramic substrate, a conductor, a heat-generating resistor, and a wear-resistant layer, the wear-resistant layers are not formed on the surface of the heat-generating resistor; It is widely formed on both sides of the print. A thermal head characterized in that a heating resistor directly contacts thermal paper without passing through an abrasion-resistant layer, and is protected by abrasion-resistant layers on both sides. 1゜
JP57223751A 1982-12-22 1982-12-22 Thermal head Pending JPS59114077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57223751A JPS59114077A (en) 1982-12-22 1982-12-22 Thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57223751A JPS59114077A (en) 1982-12-22 1982-12-22 Thermal head

Publications (1)

Publication Number Publication Date
JPS59114077A true JPS59114077A (en) 1984-06-30

Family

ID=16803131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57223751A Pending JPS59114077A (en) 1982-12-22 1982-12-22 Thermal head

Country Status (1)

Country Link
JP (1) JPS59114077A (en)

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