JPS589750U - Thermal printer drive circuit - Google Patents

Thermal printer drive circuit

Info

Publication number
JPS589750U
JPS589750U JP10508281U JP10508281U JPS589750U JP S589750 U JPS589750 U JP S589750U JP 10508281 U JP10508281 U JP 10508281U JP 10508281 U JP10508281 U JP 10508281U JP S589750 U JPS589750 U JP S589750U
Authority
JP
Japan
Prior art keywords
thermal printer
drive circuit
printer drive
heating elements
calculating
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
JP10508281U
Other languages
Japanese (ja)
Inventor
小松　和之
Original Assignee
セイコーインスツルメンツ株式会社
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 セイコーインスツルメンツ株式会社 filed Critical セイコーインスツルメンツ株式会社
Priority to JP10508281U priority Critical patent/JPS589750U/en
Publication of JPS589750U publication Critical patent/JPS589750U/en
Pending legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は、一般的なトランジスタのコレクタ電流とコレ
フタルエミッタ飽和電圧の関係を示す特性図、第２図は
、本考案の一実施例におけるサーマルヘッドの駆動回路
を示す構成図である。 Ｍ・・・・・・メイン回路、ＯＥ・・・・・・出力禁止
ライン、Ｃ・・・・・・ディケードカウンタ、ＳＲ・・
・・・・直列−並列変換レジスタ、Ｈ□〜Ｈ５１□・・
・・・・発熱体、Ｄ□〜Ｄ５１゜・・・・・・逆流防止
ダイオード、ＴＲＢ□〜ＴＲＢ１．・・・・・・駆動ト
ランジスタ、ＴＲＤ□〜ＴＲＤ、・・・・・・スイッチ
ングトランジスタ、＋ｖＲ・・・・・・駆動電圧。FIG. 1 is a characteristic diagram showing the relationship between collector current and corephthal emitter saturation voltage of a typical transistor, and FIG. 2 is a configuration diagram showing a thermal head drive circuit in an embodiment of the present invention. M...Main circuit, OE...Output prohibition line, C...Decade counter, SR...
...Serial-parallel conversion register, H□~H51□...
... Heating element, D□~D51゜... Backflow prevention diode, TRB□~TRB1. ... Drive transistor, TRD□~TRD, ... Switching transistor, +vR... Drive voltage.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 同時に複数の発熱体を駆動する方式のサーマルプリンタ
において、前記発熱体の駆動される数を計算する手段を
有し、その結果に基づいて供給エネルギーをコントロー
ルする構成としたことを特徴とするサーマルプリンタの
駆動回路。A thermal printer of a type that drives a plurality of heating elements at the same time, characterized in that the thermal printer is configured to have means for calculating the number of the heating elements to be driven, and to control supplied energy based on the result. drive circuit.
JP10508281U 1981-07-14 1981-07-14 Thermal printer drive circuit Pending JPS589750U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10508281U JPS589750U (en) 1981-07-14 1981-07-14 Thermal printer drive circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10508281U JPS589750U (en) 1981-07-14 1981-07-14 Thermal printer drive circuit

Publications (1)

Publication Number Publication Date
JPS589750U true JPS589750U (en) 1983-01-21

Family

ID=29899635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10508281U Pending JPS589750U (en) 1981-07-14 1981-07-14 Thermal printer drive circuit

Country Status (1)

Country Link
JP (1) JPS589750U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5590383A (en) * 1978-12-27 1980-07-08 Canon Inc Thermal printer
JPS5658887A (en) * 1979-10-18 1981-05-22 Canon Inc Printer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5590383A (en) * 1978-12-27 1980-07-08 Canon Inc Thermal printer
JPS5658887A (en) * 1979-10-18 1981-05-22 Canon Inc Printer

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