JPS609642U - Thermal printer drive circuit - Google Patents

Thermal printer drive circuit

Info

Publication number
JPS609642U
JPS609642U JP10223283U JP10223283U JPS609642U JP S609642 U JPS609642 U JP S609642U JP 10223283 U JP10223283 U JP 10223283U JP 10223283 U JP10223283 U JP 10223283U JP S609642 U JPS609642 U JP S609642U
Authority
JP
Japan
Prior art keywords
clock signal
circuit
thermal printer
drive circuit
print clock
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
Application number
JP10223283U
Other languages
Japanese (ja)
Other versions
JPH0315312Y2 (en
Inventor
正和 鈴木
堀田　敏博
Original Assignee
株式会社　モリタ製作所
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 株式会社　モリタ製作所 filed Critical 株式会社　モリタ製作所
Priority to JP10223283U priority Critical patent/JPS609642U/en
Publication of JPS609642U publication Critical patent/JPS609642U/en
Application granted granted Critical
Publication of JPH0315312Y2 publication Critical patent/JPH0315312Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Handling Of Sheets (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Electronic Switches (AREA)

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) [Abstract] 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]

一部１図はノイズ性クロック信号によるサーマルヘッド
の焼損を説明するための信号波形図、第２図はこの考案
の一実施例回路図、第３図は第２図の説明に供する信号
波形図である。 符号の説明、ＭＲＵ・・・・・・マイクロコンピュータ
、Ｍ・・・・・・モータ、１・・・・・・サーマルヘッ
ド、２・・・・・・モータ電流制御回路、４・・・・・
・印字駆動ライン、５・・・・・・タイマー回路、６・
・・・・・比較回路。Part 1 is a signal waveform diagram to explain thermal head burnout due to noisy clock signals, Figure 2 is a circuit diagram of an embodiment of this invention, and Figure 3 is a signal waveform diagram to explain Figure 2. It is. Explanation of symbols, MRU...Microcomputer, M...Motor, 1...Thermal head, 2...Motor current control circuit, 4...・
・Print drive line, 5... Timer circuit, 6.
...Comparison circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] マイクロコンピュータからの印字クロック信号でシフト
レジスタを駆動し、その出力をサーマルヘッドに通電し
て印字動作を行なう回路であって、上記印字クロック信
号が同時入力されるタイマー回路を設け、印字クロック
信号の入力毎にこのタイマー回路によりシフトレジスタ
からサーマルヘッドに至る印字駆動ラインを印字クロッ
ク信号間隔よりも若干長い一足時間通電可能に開放すべ
く構成すると共に、印字用紙送り用モータのモータ電流
制御回路に、モーダミ流と設定モータ電流との比較回路
を設け、この比較出力を上記マイクロコンピュータに入
力すべ（構成してなるサーマルプリンタ駆動回路。This is a circuit that drives a shift register with a print clock signal from a microcomputer and energizes the thermal head with its output to perform a printing operation.A timer circuit is provided to which the above print clock signal is simultaneously input, and the print clock signal is The timer circuit is configured to open the print drive line from the shift register to the thermal head for a period of time slightly longer than the print clock signal interval using this timer circuit. The thermal printer drive circuit consists of a circuit for comparing the current and the set motor current, and inputting the comparison output to the above-mentioned microcomputer.
JP10223283U 1983-06-30 1983-06-30 Thermal printer drive circuit Granted JPS609642U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10223283U JPS609642U (en) 1983-06-30 1983-06-30 Thermal printer drive circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10223283U JPS609642U (en) 1983-06-30 1983-06-30 Thermal printer drive circuit

Publications (2)

Publication Number Publication Date
JPS609642U true JPS609642U (en) 1985-01-23
JPH0315312Y2 JPH0315312Y2 (en) 1991-04-03

Family

ID=30241074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10223283U Granted JPS609642U (en) 1983-06-30 1983-06-30 Thermal printer drive circuit

Country Status (1)

Country Link
JP (1) JPS609642U (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412756A (en) * 1977-06-29 1979-01-30 Toshiba Corp Thermo-sensitive head driving circuit
JPS5412848A (en) * 1977-06-30 1979-01-30 Toshiba Corp Thermal head driving circuit
JPS5836475A (en) * 1981-08-28 1983-03-03 Hitachi Ltd Thermal recorder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412756A (en) * 1977-06-29 1979-01-30 Toshiba Corp Thermo-sensitive head driving circuit
JPS5412848A (en) * 1977-06-30 1979-01-30 Toshiba Corp Thermal head driving circuit
JPS5836475A (en) * 1981-08-28 1983-03-03 Hitachi Ltd Thermal recorder

Also Published As

Publication number Publication date
JPH0315312Y2 (en) 1991-04-03

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