JPH01286866A - Head voltage adjustment device - Google Patents

Head voltage adjustment device

Info

Publication number
JPH01286866A
JPH01286866A JP11637088A JP11637088A JPH01286866A JP H01286866 A JPH01286866 A JP H01286866A JP 11637088 A JP11637088 A JP 11637088A JP 11637088 A JP11637088 A JP 11637088A JP H01286866 A JPH01286866 A JP H01286866A
Authority
JP
Japan
Prior art keywords
voltage
thermal head
setting means
printing paper
printing
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
JP11637088A
Other languages
Japanese (ja)
Inventor
Akira Takeshita
明 竹下
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.)
Toshiba TEC Corp
Original Assignee
Tokyo Electric Co 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 Tokyo Electric Co Ltd filed Critical Tokyo Electric Co Ltd
Priority to JP11637088A priority Critical patent/JPH01286866A/en
Publication of JPH01286866A publication Critical patent/JPH01286866A/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
    • B41J2/35—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 providing current or voltage to the thermal head
    • B41J2/355—Control circuits for heating-element selection
    • B41J2/36—Print density control

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To make voltage adjustment easy and at the same time, allow fine adjustment based on a variety of factors by setting the type of printing paper and printing speed, and controlling a voltage based on these settings to apply the adjusted voltage to a thermal head. CONSTITUTION:A resistance value and a peripheral temperature of a thermal head are set using a resistance value setting means 13 and a temperature setting means 14, the type of printing paper is set with a printing paper setting means 15, and printing speed with a speed setting means 16 respectively. A voltage control means 17 selects a reference voltage from among these settings. After this, a fine-adjusted value is added and a voltage applied to the thermal head is adjusted through a voltage means 18 to control whether the voltage falls within the input range of the thermal head 12. If the voltage exceeds the input range, the fine-adjusted value is controlled with a limiter or any other appropriate means. If the voltage falls within the input range, a voltage is set by adding the fine-adjusted value to the reference voltage, and the set voltage is output to the thermal head 12.

Description

【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） 本発明は、たとえばラベルプリンタ等に用いるサーマル
ヘッドのヘッド電圧調整装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a head voltage adjustment device for a thermal head used in, for example, a label printer.

〈従来の技術） ラベルプリンタ等に用いるサーマルヘッドは、印刷紙の
種類、印刷速度等によってサーマルヘッドに印加される
電圧を調整しなければならない。(Prior Art) In a thermal head used in a label printer or the like, the voltage applied to the thermal head must be adjusted depending on the type of printing paper, printing speed, etc.

従来のこの種のヘッド電圧調整装置は、たとえば第４図
に示すような構成が採られている。A conventional head voltage adjusting device of this type has a configuration as shown in FIG. 4, for example.

第４図において１は電源で、この電源１は可変抵抗２お
よびデイツプスイッチ３により並列に接続された抵抗４
．５．６を介してサーマルヘッド７に直列に接続されて
いる。In Fig. 4, 1 is a power supply, and this power supply 1 is connected to a resistor 4 connected in parallel by a variable resistor 2 and a dip switch 3.
．． 5.6 is connected in series to the thermal head 7.

そして、まず、可変抵抗２により電圧を調整し、次に、
使用する印刷紙の種類に応じてデイツプスイッチ３を切
換え印刷紙に対応する抵抗を選択し、印刷紙に応じてサ
ーマルヘッド７の電圧を調整している。Then, first, the voltage is adjusted by variable resistor 2, and then,
Depending on the type of printing paper used, the dip switch 3 is changed to select a resistance corresponding to the printing paper, and the voltage of the thermal head 7 is adjusted depending on the printing paper.

（発明が解決しようとする課題） しかしながら、上記従来の装置では可変抵抗により電圧
の調整することは煩雑であり、また、デイツプスイッチ
では紙の種類等の１つの種類の要因でのみしか可変でき
ず、また、サーマルヘツドの電圧の微調整ができない問
題を有している。(Problems to be Solved by the Invention) However, in the conventional device described above, it is complicated to adjust the voltage using a variable resistor, and the dip switch can only be adjusted based on one type of factor, such as the type of paper. First, there is another problem in that the voltage of the thermal head cannot be finely adjusted.

本発明は上記問題点に鑑みなされたもので、サーマルヘ
ッドへの電圧調整が容易であり、多種の要因でかつ微調
整を行なえるヘッド電圧調整装置を提供することを目的
とする。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a head voltage adjustment device that allows easy voltage adjustment to a thermal head and allows fine adjustment based on various factors.

〔発明の構成〕[Structure of the invention]

（課題を解決するための手段） 本発明のヘッド電圧調整装置は、印刷紙の種類を設定す
る印刷紙設定手段と、前記印刷紙に印刷する印刷速度を
設定する速度設定手段と、前記印刷紙設定手段および前
記速度設定手段に基づいて前記電圧手段の電圧を制御す
る電圧制御手段と、この電圧制御手段でサーマルヘッド
に電圧を印加する電圧手段とを具備するものである。(Means for Solving the Problems) A head voltage adjusting device of the present invention includes a printing paper setting means for setting the type of printing paper, a speed setting means for setting the printing speed for printing on the printing paper, and a head voltage adjusting device for the printing paper. The apparatus includes a voltage control means for controlling the voltage of the voltage means based on the setting means and the speed setting means, and a voltage means for applying a voltage to the thermal head using the voltage control means.

（作用） 本発明は、印刷Ｍ１設定手段で印刷紙の種類を設定し、
速度設定手段で印刷紙に印刷する速度を設定し、これら
印刷紙設定手段および速度設定手段に基づいて電圧手段
の電圧を電圧制御手段で制御してサーマルヘッドに電圧
を印加するものである。(Function) The present invention sets the type of printing paper by the printing M1 setting means,
The speed setting means sets the printing speed on the printing paper, and the voltage control means controls the voltage of the voltage means based on the printing paper setting means and the speed setting means to apply a voltage to the thermal head.

（実施例） 以下、本発明のヘッド電圧調整装置を図面を参照して説
明する。(Example) Hereinafter, a head voltage adjusting device of the present invention will be described with reference to the drawings.

第１図において１１は設定手段で、この設定手段１１は
、サーマルヘッド１２の抵抗値を設定する抵抗値設定手
段１３、サーマルヘッド１２の周辺湿度を設定するたと
えばセンサにより構成される温度設定手段１４、印刷紙
のたとえば発色または転写等の種類を設定する印刷紙設
定手段１５、印刷紙に印刷する速度を設定する速度設定
手段１６等から構成されている。In FIG. 1, reference numeral 11 denotes a setting means, which includes a resistance value setting means 13 for setting the resistance value of the thermal head 12, and a temperature setting means 14 constituted by a sensor, for example, for setting the ambient humidity of the thermal head 12. , a printing paper setting means 15 for setting the type of printing paper, such as color development or transfer, and a speed setting means 16 for setting the printing speed on the printing paper.

また、この設定手段１１は、この設定手段１１に基づい
て電圧をυＩｔ［ｌする電圧制御手段１７に接続され、
この電圧制御手段１７はサーマルヘッド１２に電圧を供
給する電圧手段１８に接続され、この電圧手段１８はた
とえばラベル用のプリンタのサーマルヘッド１２に接続
されている。Further, this setting means 11 is connected to a voltage control means 17 that controls the voltage υIt[l based on this setting means 11,
This voltage control means 17 is connected to voltage means 18 for supplying voltage to the thermal head 12, which is connected to the thermal head 12 of a printer for labels, for example.

また、電圧制御手段１７および電圧手段１８の具体的な
回路は第３図に示すようになっている。Further, the specific circuits of the voltage control means 17 and the voltage means 18 are shown in FIG.

第３図において、２１は設定手段１１からの入力をデジ
タルからアナログに変換するＤ／Ａ変換器で、このＤ／
Ａ変換器２１の出力は入力端と出力端との間に抵抗２２
を有するボルテージホロリ回路を構成するオペアンプ２
３の一方の入力端に接続され、他方の入力端には基準電
圧源２４が接続されている。In FIG. 3, 21 is a D/A converter that converts the input from the setting means 11 from digital to analog.
The output of the A converter 21 is connected to a resistor 22 between the input end and the output end.
Operational amplifier 2 constituting a voltage holly circuit with
3, and the other input terminal is connected to a reference voltage source 24.

また、オペアンプ２３の出力端はコンパレータとしての
オペアンプ２６の一方の入力端に接続され、他方の入力
端には抵抗２５を介して基準電圧源２４に接続されてい
る。オペアンプ２６の出力端は抵抗２７を介しＣ電圧角
変用のトランジスタ２８のベースに接続され、このトラ
ンジスタ２８のコレクタは駆動用電源に、エミッタはオ
ン・オフ用のサイリスタ２９の７ノードに、このサイリ
スタ２９のカソードは抵抗３０を介して抵抗２５に接続
されるとともに、サーマルヘッド１２への出力端を構成
している。Further, the output terminal of the operational amplifier 23 is connected to one input terminal of an operational amplifier 26 as a comparator, and the other input terminal is connected to the reference voltage source 24 via a resistor 25. The output terminal of the operational amplifier 26 is connected via a resistor 27 to the base of a transistor 28 for changing the C voltage angle, the collector of this transistor 28 is connected to the drive power supply, the emitter is connected to the 7th node of the on/off thyristor 29, The cathode of the thyristor 29 is connected to the resistor 25 via a resistor 30, and constitutes an output end to the thermal head 12.

次に上記実施例の動作について説明する。Next, the operation of the above embodiment will be explained.

まず、抵抗値設定手段１３で取付けられているサーマル
ヘッド１２の抵抗値を設定しくステップ■）、温度設定
手段１４でサーマルヘッド１２の周ｙ１温度を設定しく
ステップ■）、印刷紙設定手段１５で印刷紙の種類を設
定しくステップ■）、速度設定手段１６で印刷する速度
を設定しくステップ■）、これらの設定値により基準の
電圧を選択する（ステップ■）。その後微ｖＡｌｉｌを
加えヘッド電圧を加減しくステップ■）、サーマルヘッ
ド１２の入力範囲であるか否かを判断しくステップ■）
、たとえばサーマルヘッド１２の過電圧である等により
入力範囲を越えているときはステップ■でたとえばりミ
ツター等により微調値を加減し、入力範囲内のときは基
準電圧に微調値を加え（ステップ■）、Ｄ／Ａ変換器２
１で電圧を設定し、トランジスタ２８で電圧を可変して
サイリスタ２９をオンしてサーマルヘッド１２に設定電
圧を出力する（ステップ■）。First, the resistance value setting means 13 sets the resistance value of the attached thermal head 12 (Step ■), the temperature setting means 14 sets the circumference y1 temperature of the thermal head 12 (Step ■), and the printing paper setting means 15 The type of printing paper is set (step (2)), the printing speed is set by the speed setting means 16 (step (2)), and a reference voltage is selected based on these set values (step (2)). After that, add a small amount of vAlil to adjust the head voltage (step ■), and then judge whether it is within the input range of the thermal head 12 (step ■)
For example, if the input range is exceeded due to overvoltage of the thermal head 12, etc., the fine adjustment value is adjusted with a calibrator, etc. in step ■, and if it is within the input range, the fine adjustment value is added to the reference voltage (step ■). , D/A converter 2
1, the voltage is varied by the transistor 28, the thyristor 29 is turned on, and the set voltage is output to the thermal head 12 (step 2).

上記実施例によれば、サーマルヘッド１２に印加する電
圧がサーマルヘッド１２の定格電圧を越えるときはリミ
ッタ−等で制御するのでサーマルヘッド１２に過電圧が
印加されることがない。According to the above embodiment, when the voltage applied to the thermal head 12 exceeds the rated voltage of the thermal head 12, it is controlled by a limiter or the like, so that no overvoltage is applied to the thermal head 12.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、印刷紙設定手段および速度設定手段に
より電圧制御手段が電圧手段の電圧を制御してサーマル
ヘッドに印加するので、サーマルヘッドへの電圧調整が
容易であり、多種の要因で、かつ微調整を行なうことが
できる。According to the present invention, since the voltage control means controls the voltage of the voltage means and applies it to the thermal head using the printing paper setting means and the speed setting means, it is easy to adjust the voltage to the thermal head. And fine adjustments can be made.

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

第１図は本発明のヘッド電圧調整装置の一実施例を示す
ブロック図、第２図は同上フローチャート、第３図は同
上電圧制御手段および電圧手段の回路図、第４図は従来
例を示す回路図である。 １２・・サーマルヘッド、１５・・印刷紙設定手段、１
６・・速１１１設定手段、１７・・電圧制御手段、１８
・・電圧手段。 嶌２図 嶌４図FIG. 1 is a block diagram showing an embodiment of the head voltage adjusting device of the present invention, FIG. 2 is a flowchart of the same, FIG. 3 is a circuit diagram of the voltage control means and voltage means, and FIG. 4 is a conventional example. It is a circuit diagram. 12...Thermal head, 15...Printing paper setting means, 1
6. Speed 111 setting means, 17. Voltage control means, 18
...Voltage means. 2 figs. 4 figs.

Claims (1)

【特許請求の範囲】[Claims] （１）印刷紙の種類を設定する印刷紙設定手段と、 前記印刷紙に印刷する印刷速度を設定する速度設定手段
と、 前記印刷紙設定手段および前記速度設定手段に基づいて
前記電圧手段の電圧を制御する電圧制御手段と、 この電圧制御手段でサーマルヘッドに電圧を印加する電
圧手段と を具備することを特徴としたヘッド電圧調整装置。(1) a printing paper setting means for setting the type of printing paper; a speed setting means for setting a printing speed for printing on the printing paper; and a voltage of the voltage means based on the printing paper setting means and the speed setting means. What is claimed is: 1. A head voltage adjustment device comprising: voltage control means for controlling the thermal head; and voltage means for applying voltage to a thermal head using the voltage control means.
JP11637088A 1988-05-13 1988-05-13 Head voltage adjustment device Pending JPH01286866A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11637088A JPH01286866A (en) 1988-05-13 1988-05-13 Head voltage adjustment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11637088A JPH01286866A (en) 1988-05-13 1988-05-13 Head voltage adjustment device

Publications (1)

Publication Number Publication Date
JPH01286866A true JPH01286866A (en) 1989-11-17

Family

ID=14685295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11637088A Pending JPH01286866A (en) 1988-05-13 1988-05-13 Head voltage adjustment device

Country Status (1)

Country Link
JP (1) JPH01286866A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1226952A1 (en) * 2001-01-26 2002-07-31 Seiko Epson Corporation Printing system, thermal printer, printing control method, and data storage medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959476A (en) * 1982-09-30 1984-04-05 Teraoka Seiko Co Ltd Print controller for printer
JPS6023064A (en) * 1983-07-19 1985-02-05 Matsushita Electric Ind Co Ltd Printer
JPS60255464A (en) * 1984-06-01 1985-12-17 Hitachi Ltd Thermal transfer printer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959476A (en) * 1982-09-30 1984-04-05 Teraoka Seiko Co Ltd Print controller for printer
JPS6023064A (en) * 1983-07-19 1985-02-05 Matsushita Electric Ind Co Ltd Printer
JPS60255464A (en) * 1984-06-01 1985-12-17 Hitachi Ltd Thermal transfer printer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1226952A1 (en) * 2001-01-26 2002-07-31 Seiko Epson Corporation Printing system, thermal printer, printing control method, and data storage medium

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