JPS6112359A - Constitution of thermal head - Google Patents

Constitution of thermal head

Info

Publication number
JPS6112359A
JPS6112359A JP13313084A JP13313084A JPS6112359A JP S6112359 A JPS6112359 A JP S6112359A JP 13313084 A JP13313084 A JP 13313084A JP 13313084 A JP13313084 A JP 13313084A JP S6112359 A JPS6112359 A JP S6112359A
Authority
JP
Japan
Prior art keywords
substrates
substrate
thermal head
average resistance
duty
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
JP13313084A
Other languages
Japanese (ja)
Inventor
Yoichi Fujita
洋一 藤田
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 JP13313084A priority Critical patent/JPS6112359A/en
Publication of JPS6112359A publication Critical patent/JPS6112359A/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 attain to reduce the number of processes in thermal head substrate assembling work by eliminating the necessity for coinciding the average resistance values of resistors on substrates, in constituting a thermal head from two substrates, by independently controlling the duty of the pulse of th printing strobe signal of each substrate. CONSTITUTION:A monitor resistor 2 showing the average resistance value of a left side half substrate 4 and a monitor resistor 3 showing the average resistance value of a right side half substrate 5 are mounted to a thermal head 1. The average resistance values of the respective half substrates are read from these two monitor resistors by a left side half duty control circuit 7 and a right side half duty contorl circuit 8. Next, the duty of a printing strobe signal (the ratio of a time during printing and a total time) is independently determined to each of two half substrates by CPU6 and printing strobe signals are respectively sent to the driver IC10 of the left side half substrate 4 and the driver IC11 of the right side half substrate 5 from the left side control circuit 7 and the right side control circuit 8. Therefore, even when the average resistance values of the left and right substrates are different, same energy can be supplied to the resistors.

Description

【発明の詳細な説明】 〔発明の利用分野」 本発明は感熱記録装置の構成方法に係り、特に２枚（ま
たは３枚以上）の基板から構成される感熱ヘッドに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a method for configuring a thermal recording device, and particularly to a thermal head configured from two (or three or more) substrates.

〔発明の背景〕[Background of the invention]

感熱ヘッドを構成する際、２枚（または３枚以上）の基
板を組み合わせる手法が多くとられている。しかし、基
板の抵抗体の平均抵抗値はプロセス上の理由から基板ご
とに大きなばらつきがあった。従来は各平均抵抗値をも
つ基板の中から、はぼ同じ抵抗値のものを２枚（または
３枚以上）組み合わせてヘッドを構成していた。When constructing a thermal head, a method of combining two (or three or more) substrates is often used. However, the average resistance value of the resistor on the substrate varies greatly from substrate to substrate due to process reasons. Conventionally, a head has been constructed by combining two (or three or more) substrates having approximately the same resistance value from among substrates having various average resistance values.

したがって、工数が多くかかり、ヘッドの原価低減を妨
げるという欠点があった。Therefore, there is a drawback that it requires a large number of man-hours and prevents a reduction in the cost of the head.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、感熱ヘッド上の２枚（または３枚以上
）の基板の各平均抵抗値を一致させる必要がなくなるこ
とにより、ヘッド基板組合せ作業の工数低減を提供する
ことにある。An object of the present invention is to provide a reduction in the number of steps for assembling head substrates by eliminating the need to match the average resistance values of two (or three or more) substrates on a thermal head.

（発明の概要〕 感熱ヘッドを２枚（ｔたは３枚以よ）の基板で構成する
際、各基板の印画ストローブ信号のパルスのデユーティ
を独立制御を行なうことによシ、各基板の抵抗体の平均
抵抗値を一致させる必要が全くなくなった。(Summary of the invention) When a thermal head is configured with two (or three or more) substrates, the resistance of each substrate can be reduced by independently controlling the pulse duty of the printing strobe signal for each substrate. There is no longer any need to match the average resistance value of the body.

〔発明の実施例Ｊ 以下発明の実施例を第１図、第２図によシ、２枚の基板
から構成されている感熱ヘッドを例にして説明する。第
１図において、感熱ヘッド１に左側ハーフ基板４の平均
抵抗値を示すモニ夕抵抗２と右側ノ・−７基板５の平均
抵抗値を示すモニタ抵抗３が搭載されている０この２つ
のモニタ抵抗よ）左側ハーフデユーティ調整回路７と右
側ハーフデユーティ調整回路８でそれぞれのハーフ基板
の平均抵抗値を読み取る。次にＣＰＵ６によって印画ス
トローブ信号のデユーティ（印画している時間と全体の
時間の比）を２枚のハーフ基板に対して独立に決定し、
左側ノ・−フデューティ調整回路７より左側ハーフ基板
４のドライバーＩＣ１ｏへ、右側ハーフデユーティ調整
回路８より右側ハーフ基板５のドライバーＩＣ１１へそ
れぞれ印画ストローブ信号（デユーティは異なる）が送
られる。したが・つて、左側ハーフ基板４と右側ノ・−
７基板５の平均抵抗値が異なっている場合でも、同一の
エネルギーを抵抗体に供給可能である。[Embodiment J of the Invention] An embodiment of the invention will be described below with reference to FIGS. 1 and 2, taking as an example a thermal head composed of two substrates. In FIG. 1, a thermal head 1 is equipped with a monitor resistor 2 that shows the average resistance value of the left half board 4 and a monitor resistor 3 that shows the average resistance value of the right half board 5. (Resistance) The left half duty adjustment circuit 7 and the right half duty adjustment circuit 8 read the average resistance value of each half board. Next, the CPU 6 independently determines the duty of the printing strobe signal (ratio of printing time to total time) for the two half boards,
A print strobe signal (with different duties) is sent from the left half duty adjustment circuit 7 to the driver IC 1o on the left half board 4, and from the right half duty adjustment circuit 8 to the driver IC 11 on the right half board 5. However, the left half board 4 and the right half board -
Even if the average resistance values of the seven substrates 5 are different, the same energy can be supplied to the resistor.

また、以上の構成をブロックダイアグラムとして第２図
に示した。Further, the above configuration is shown in FIG. 2 as a block diagram.

（発明の効果〕 以上、述べたように、２枚（または６枚以上）の基板の
印画ストローブ信号のデユーティを独立に設定すること
によシ、感熱ヘッド内の各基板の抵抗体の平均値を一致
させる必要はなくなシ基板組合せの工数を低減できる。(Effects of the Invention) As described above, by independently setting the duty of the printing strobe signal of two (or six or more) substrates, the average value of the resistor of each substrate in the thermal head can be set. There is no need to match the two, and the number of man-hours required for board combination can be reduced.

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

第１図は本発明による感熱ヘッド及び駆動装置の構成図
、第２図は、第１図のブロック図である。 １・・感熱ヘッド、　　　　２・・モニタ抵抗、３・・
モニタ抵抗、　　　４・・・左側・・−フ基板。 ５・・・右側ハーフ基板、　　６　制御用ＣＰＵ。 ９・信号用ケーブル。FIG. 1 is a block diagram of a thermal head and driving device according to the present invention, and FIG. 2 is a block diagram of FIG. 1. 1...Thermal head, 2...Monitor resistance, 3...
Monitor resistance, 4...Left side...Full board. 5...Right side half board, 6 Control CPU. 9. Signal cable.

Claims (1)

【特許請求の範囲】[Claims] １、複数枚の基板から成る感熱ヘッドにおいて、各基板
ごとに印画ストローブ信号のデューティを独立制御を行
ない各基板の平均抵抗値のばらつきに応じて一定の印画
エネルギーを供給することを特徴とする感熱ヘッドの構
成方法。1. A thermal head consisting of a plurality of substrates, in which the duty of the printing strobe signal is independently controlled for each substrate, and a constant printing energy is supplied according to the variation in the average resistance value of each substrate. How to configure the head.
JP13313084A 1984-06-29 1984-06-29 Constitution of thermal head Pending JPS6112359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13313084A JPS6112359A (en) 1984-06-29 1984-06-29 Constitution of thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13313084A JPS6112359A (en) 1984-06-29 1984-06-29 Constitution of thermal head

Publications (1)

Publication Number Publication Date
JPS6112359A true JPS6112359A (en) 1986-01-20

Family

ID=15097478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13313084A Pending JPS6112359A (en) 1984-06-29 1984-06-29 Constitution of thermal head

Country Status (1)

Country Link
JP (1) JPS6112359A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01156081A (en) * 1987-12-15 1989-06-19 Fuji Xerox Co Ltd Color thermal recording apparatus
EP0330439A2 (en) * 1988-02-25 1989-08-30 Neopost Limited Thermal printing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01156081A (en) * 1987-12-15 1989-06-19 Fuji Xerox Co Ltd Color thermal recording apparatus
EP0330439A2 (en) * 1988-02-25 1989-08-30 Neopost Limited Thermal printing apparatus

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