JPS6068975A - Printing-controlling system - Google Patents

Printing-controlling system

Info

Publication number
JPS6068975A
JPS6068975A JP17848783A JP17848783A JPS6068975A JP S6068975 A JPS6068975 A JP S6068975A JP 17848783 A JP17848783 A JP 17848783A JP 17848783 A JP17848783 A JP 17848783A JP S6068975 A JPS6068975 A JP S6068975A
Authority
JP
Japan
Prior art keywords
dots
printing
data
head
stopped
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
JP17848783A
Other languages
Japanese (ja)
Inventor
Shoji Mochizuki
昌二 望月
Toyohiro Kobayashi
豊博 小林
Mitsuru Murata
充 村田
Shunji Tsuboi
坪井　俊次
Hideto Sakurai
桜井　秀人
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP17848783A priority Critical patent/JPS6068975A/en
Priority to GB08424321A priority patent/GB2147250B/en
Priority to US06/654,496 priority patent/US4566813A/en
Priority to DE19843435268 priority patent/DE3435268A1/en
Publication of JPS6068975A publication Critical patent/JPS6068975A/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

Landscapes

  • Dot-Matrix Printers And Others (AREA)
  • Electronic Switches (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)

Abstract

PURPOSE:To stabilize printing energy required for each dot without using any voltage-stabilizing capacitor with high capacitance, by a method wherein the number of dots to be printed is counted, and a pulse with a pulse width corresponding to the number of the dots is impressed on a printing head. CONSTITUTION:For example, when data for T is inputted into a microcomputer, access is made to a character generator ROM2 (e), and data 001H for the first one dot line are obtained. Next, the printing head is started to move, and font data 001H are outputted to the head. Then, the number of the dots is counted (h), outputting is stopped after the pulse width t=t0+t1 determined by taking voltage drop into consideration, and a motor is stopped after several msec. Similarly, 001H,... are printed. Subsequently, data of FFFH are outputted, and the outputting is stopped after a period of time t=t0+12Xt1. Further, data 001H,..., 002H are sequentially outputted while moving the head, thereby completely printing the character T.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は例えば感熱紙を用いる感熱式ドツトマトリクス
印字装置又は感熱転写テープを用いる感熱転写式ドツト
マトリクス印字装置の印字制御方式に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a printing control system for, for example, a thermal dot matrix printing device using thermal paper or a thermal transfer dot matrix printing device using a thermal transfer tape.

〔従来技術〕[Prior art]

第１図は感熱式ドツトマトリクス印字装置を示し、１は
全体を制御するマイクロコンピュータ、２は印字するフ
ォントを内蔵するキャラクタジェネレータＲＯＭ、３は
入力装置、４は出力ドライバ、５は抵抗体からなる印字
ヘッド、６はヘッド電源用電圧安定化コンデンサ、７は
パルスモータ等のヘッド移動用モータ（パルスモータ）
である。Figure 1 shows a thermal dot matrix printing device, in which 1 is a microcomputer that controls the entire system, 2 is a character generator ROM containing a font to be printed, 3 is an input device, 4 is an output driver, and 5 is a resistor. Print head, 6 is a voltage stabilizing capacitor for the head power supply, 7 is a head movement motor such as a pulse motor (pulse motor)
It is.

上記装置の動作を第２図のフローチャートを用いて説明
する。マイクロコンピュータｌは外部からの入力によ多
動作をスタートさせ、入力データに対応した１ドツトラ
イン分のフォントデータをキャラクタジェネレータＲＯ
Ｍ２から取込む。次に、ヘッド移動モータ７をスタート
させ、出力ドライバ４を介してフォントデータを印字ヘ
ッド５にドツト数に関わらず一定時間印加し、数ミリＳ
ｅｃ後にモータ７をストップする。以後、ｌキャラクタ
が終了するまで上記動作を繰り返す。The operation of the above device will be explained using the flowchart shown in FIG. The microcomputer l starts multiple operations in response to input from the outside, and transfers font data for one dot line corresponding to the input data to the character generator RO.
Import from M2. Next, the head moving motor 7 is started, and the font data is applied to the print head 5 via the output driver 4 for a certain period of time regardless of the number of dots.
Stop motor 7 after ec. Thereafter, the above operation is repeated until l characters are completed.

しかしながら、上記のように制御する場合、１ドツト当
シのエネルギ（”ｔ）ｅ一定にするには、ドツト数の変
動に耐えることができる高容量の安定化コンデンサ６又
は安定化電源が必要となる。However, when controlling as described above, in order to keep the energy ("t)e per dot constant, a high-capacity stabilizing capacitor 6 or a stabilizing power supply that can withstand fluctuations in the number of dots is required. Become.

従って、全体の構成が大がかりになジ、小形化の妨げと
なっていた。Therefore, the overall configuration is large-scale, which hinders miniaturization.

〔発明の概要〕[Summary of the invention]

本発明は上記した従来の欠点を除去するために成された
ものであシ、高容量の安定化コンデンサ等を用いなくて
も、印字ドツト数に対応した電圧ドロップを予測し印加
パルス幅を補正することにより、’ドツト当りのエネル
ギーを一定化することができ、印字装置の小形化が可能
な印字制御方式を提供することを目的とする。The present invention was made in order to eliminate the above-mentioned conventional drawbacks, and it is possible to predict the voltage drop corresponding to the number of printed dots and correct the applied pulse width without using a high-capacity stabilizing capacitor. It is an object of the present invention to provide a printing control method that can make the energy per dot constant and downsize the printing device.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の実施例を図面とともに説明する。 Embodiments of the present invention will be described below with reference to the drawings.

第３図は第１図に示した印字装置の動作を示すフローチ
ャート、第４図はドツトマトリクス文字を示し、第５図
は印字電圧、時間、印字ドツト数の関係を示す。マイク
ロコンピュータｌはドツト数カウント、印加パルス幅制
御を含め全体のコントロールを行う。キャラクタジェネ
レータＲＯＭ２はフォントデータを内蔵し、各文字に対
応したアドレスに第４図に示すフォントデータが書き込
まれている。入力装置３はキーボードマトリクス又は外
部機器とのインターフェース装置で構成されティる。出
力ドライバ４はトランジスタプレイ等で構成されている
。印字ヘッド５は発熱抵抗体等で構成されている。FIG. 3 is a flowchart showing the operation of the printing apparatus shown in FIG. 1, FIG. 4 shows dot matrix characters, and FIG. 5 shows the relationship among printing voltage, time, and number of printed dots. The microcomputer 1 performs overall control including counting the number of dots and controlling the applied pulse width. The character generator ROM 2 contains font data, and the font data shown in FIG. 4 is written in addresses corresponding to each character. The input device 3 is composed of a keyboard matrix or an interface device with external equipment. The output driver 4 is composed of a transistor drive or the like. The print head 5 is composed of a heat generating resistor and the like.

第３図に示したフローチャートに示すように、まずマイ
クロコンピュータ１はＡ　Ｓ　ＣＩＩコード等で”Ｔ”
のデータを入力するとキャラクタジェネレータＲＯＭ２
にアクセスし、最初の１トントライ分のデータ０ＯＩＨ
（１６進）を得る。次に、ヘッド移動モータ７により印
字ヘッド５の移動を開始し、フォントデータ００１　Ｈ
ｋ出力ドライバ４を介して印字ヘッド５に出力する。次
に１　ドツト数をカウントし、第５図に示される電圧降
下を考慮したパルス幅ｔ＝ｔｏ＋ｔｌ　（ｔ＝ｔｏ＋ｔ
、Ｘｎ、ただしｎはドツト数）の後に出力をストップし
、数ミリＳｅｅ後モータをストップする。同様に、０Ｏ
ＩＨ。As shown in the flowchart shown in FIG.
When you input the data, character generator ROM2
Access the data for the first 1 ton try 0OIH
Get (hexadecimal). Next, the head movement motor 7 starts moving the print head 5, and the font data 001H
k is output to the print head 5 via the output driver 4. Next, the number of 1 dots is counted, and the pulse width t=to+tl (t=to+t
, Xn, where n is the number of dots), the output is stopped, and the motor is stopped after several millimeters See. Similarly, 0O
IH.

００１　Ｈ、００１Ｈを印字する。次に、ＦＦＦＨのデ
ータを出力し、ｔ＝ｔｏ＋１２Ｘｔ、後に出力全ストッ
プする。さらに、０ＯＩＨ，０ＯＩＩ−Ｉ、０ＯＩＨ。Print 001H, 001H. Next, data of FFFH is outputted, and after t=to+12Xt, all outputs are stopped. Furthermore, 0OIH, 0OII-I, 0OIH.

００２Ｈを印字ヘッド５を移動しながら順次出力し、Ｔ
の印字が終了する。第５図は印字時のドツト数、電圧、
時間の関係を示すもので、Ａ部分はドツト数の増加によ
って起こる電圧降下による印字エネルギー不足部分であ
シ、この不足分を印加パルス幅を長くすることにより得
られるＢの部分のエネルギーによシ補正し、電圧降下に
かかわらず常に一定の電力を各ドツトに与えるものであ
る。002H is sequentially output while moving the print head 5, and T
is finished printing. Figure 5 shows the number of dots, voltage, and
This shows the time relationship. Part A is the insufficient printing energy due to the voltage drop caused by the increase in the number of dots, and this shortage can be compensated for by the energy in part B obtained by increasing the applied pulse width. It compensates and always provides constant power to each dot regardless of voltage drop.

〔発明の効果〕〔Effect of the invention〕

以上のように本発明においては、印字ドツト数を計測し
それに対応した印加パルス数を与えることによシ高容量
の電圧安定化コンデンサを用いなくても１ドツト当りの
印字エネルギーを安定イ与−させることができ、高品位
の印字品質が得られる。As described above, in the present invention, by measuring the number of printed dots and applying the corresponding number of applied pulses, the printing energy per dot can be stabilized without using a high-capacity voltage stabilizing capacitor. High quality printing can be obtained.

従って、小容量の電圧安定化コンデンサを用いることが
でき、機器の小形化、低コスト化が可能となる０Therefore, a voltage stabilizing capacitor of small capacity can be used, making it possible to downsize and reduce the cost of equipment.

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

第１図は感熱式ドットマ）　ＩＪクス印字装置の構成図
、第２図は従来装置のフローチャート、第３図は本発明
装置のフローチャート、第４図はドツトマトリクス文字
を示す図、第５図は本発明装置の印字時のドツト数、電
圧、時間の関係を示す図である。 １・・・マイクロコンピュータ、２・・・キャラクタジ
ェネレータＲＯＭ、３・・・入力装置、４・・・出力ド
ライバ、５・・・印字ヘッド、６・・・電圧安定化コン
デンサ、７・・・ヘッド移動用モータ。 代理人　大　岩　増　雄 第４図 第５図 Δ 第１頁の続きFigure 1 is a block diagram of an IJ printing device (thermal dot matrix), Figure 2 is a flowchart of a conventional device, Figure 3 is a flowchart of the device of the present invention, Figure 4 is a diagram showing dot matrix characters, and Figure 5 is a diagram showing a dot matrix character. FIG. 3 is a diagram showing the relationship among the number of dots, voltage, and time during printing by the apparatus of the present invention. DESCRIPTION OF SYMBOLS 1... Microcomputer, 2... Character generator ROM, 3... Input device, 4... Output driver, 5... Print head, 6... Voltage stabilizing capacitor, 7... Head Motor for movement. Agent Masuo Oiwa Figure 4 Figure 5 Δ Continuation of page 1

Claims (1)

【特許請求の範囲】[Claims] （１）記憶された印字データに基づいて発熱抵抗体を有
する印字ヘッドに出力パルスを加えて動作させ印字を行
う感熱式または感熱転写式ドツトマトリクス印字装置に
おいて、印字するドツト数を計測し、そのドツト数に対
応した印加パルス幅全印字ヘッドに加えるようにしたこ
とを特徴とする印字制御方式。(1) In a thermal type or thermal transfer type dot matrix printing device that prints by applying output pulses to a print head having a heating resistor based on stored print data, the number of dots to be printed is counted and A print control method characterized by applying an applied pulse width corresponding to the number of dots to all print heads.
JP17848783A 1983-09-27 1983-09-27 Printing-controlling system Pending JPS6068975A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP17848783A JPS6068975A (en) 1983-09-27 1983-09-27 Printing-controlling system
GB08424321A GB2147250B (en) 1983-09-27 1984-09-26 Dot-matrix print controller
US06/654,496 US4566813A (en) 1983-09-27 1984-09-26 Dot-matrix print controller
DE19843435268 DE3435268A1 (en) 1983-09-27 1984-09-26 CONTROL DEVICE FOR A DOT MATRIX PRINTER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17848783A JPS6068975A (en) 1983-09-27 1983-09-27 Printing-controlling system

Publications (1)

Publication Number Publication Date
JPS6068975A true JPS6068975A (en) 1985-04-19

Family

ID=16049314

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17848783A Pending JPS6068975A (en) 1983-09-27 1983-09-27 Printing-controlling system

Country Status (1)

Country Link
JP (1) JPS6068975A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4848943A (en) * 1987-04-13 1989-07-18 Micro Peripherals Method and apparatus for energizing a printhead

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5772879A (en) * 1980-10-27 1982-05-07 Casio Comput Co Ltd Control system of thermal printer
JPS5787382A (en) * 1980-11-20 1982-05-31 Ricoh Co Ltd Character generator for thermal printer
JPS5820474A (en) * 1981-07-30 1983-02-05 Oki Electric Ind Co Ltd Serial printing type thermal printer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5772879A (en) * 1980-10-27 1982-05-07 Casio Comput Co Ltd Control system of thermal printer
JPS5787382A (en) * 1980-11-20 1982-05-31 Ricoh Co Ltd Character generator for thermal printer
JPS5820474A (en) * 1981-07-30 1983-02-05 Oki Electric Ind Co Ltd Serial printing type thermal printer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4848943A (en) * 1987-04-13 1989-07-18 Micro Peripherals Method and apparatus for energizing a printhead

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