JPS63118274A - Thermal head driving circuit - Google Patents
Thermal head driving circuitInfo
- Publication number
- JPS63118274A JPS63118274A JP26522186A JP26522186A JPS63118274A JP S63118274 A JPS63118274 A JP S63118274A JP 26522186 A JP26522186 A JP 26522186A JP 26522186 A JP26522186 A JP 26522186A JP S63118274 A JPS63118274 A JP S63118274A
- Authority
- JP
- Japan
- Prior art keywords
- data
- line
- line data
- inputted
- register
- 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
Links
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
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
Landscapes
- Electronic Switches (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はサーマル・ライン・ヘッドの駆動回路に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a driving circuit for a thermal line head.
この発明はサーマル・ライン・ヘッドの印字品質を向上
させるために履歴制御を行う際に使われるものであり、
ヘソドヘデータを転送しながら演算処理し、同時に次の
ラインのデータを入力するために、履歴処理に必要な以
前の数ライン分のデータを移動させるものである。This invention is used to perform history control to improve the printing quality of thermal line heads.
In order to perform arithmetic processing while transferring data to the head and input the next line of data at the same time, the previous several lines of data necessary for history processing are moved.
構成は数本のシフト・レジスタと前車な論理ゲート及び
データ信号の流れを変える信号切り換え回路から成り、
ソフト・ウェアでの演算を供なわないため、極めて高速
でかつ効率良く、履歴処理を供ったデータ転送を提供す
るものである。The configuration consists of several shift registers, front logic gates, and signal switching circuits that change the flow of data signals.
Since it does not involve calculations using software, it provides extremely high-speed and efficient data transfer with history processing.
（従来の技術〕
従来の履歴制御はｎライン前までを見る場合、現在のラ
インと１９４２分のデータをメモリーに入れておき、ソ
フトウェアにより演算を行いながらヘッドへのデータ転
送とヘッドのｉｌｌ電を複数回行い、その後、次のデー
タを入れるためメモリー中の１９４２分のデータを移動
させるといった復雑な処理を行っていた。(Conventional technology) In conventional history control, when looking up to the previous n lines, the current line and 1942 worth of data are stored in memory, and software is used to perform calculations while transferring data to the head and turning on the illumination of the head. This process was repeated multiple times, and then 1,942 worth of data in memory was moved in order to input the next data, a complicated process.
従来の方法では演算に非常に時間がかかり、又数ライン
分のデータ移動等処理も複雑なため発熱素子の多いサー
マル・ライン・ヘッドにおいては印字速度を上げる事は
困難であった。In the conventional method, calculations take a very long time, and processing such as moving data for several lines is complicated, so it is difficult to increase the printing speed in a thermal line head with many heating elements.
前記問題点を解決するため、本発明では数本のシフト・
レジスタと、その出力の論理演算を行うゲート、及びデ
ータ信号の流れを変える１３号切り換え回路を組み合わ
せた。In order to solve the above problems, the present invention provides several shift
It combines a register, a gate that performs logical operations on its output, and a No. 13 switching circuit that changes the flow of data signals.
本発明の回路により、印字させようとする１５４７分の
データ転送を回路に行えば、後は簡単な信号切り換え回
路の操作により、ソフトウェアの演算処理なしに数ライ
ン前までの履歴処理を行いながら、ヘッドに必要日数分
のデータ転送を行い、同時に数ライン分のデータの移動
と次のラインのデータ入力が行える。By using the circuit of the present invention, once the 1547 minutes of data to be printed are transferred to the circuit, by simply operating the signal switching circuit, the process can be performed while processing the history up to several lines before without any software calculation processing. Data can be transferred to the head for the required number of days, and data for several lines can be moved and data for the next line can be input at the same time.
以下、本発明を図面に基づいて詳細に説明するが、説明
を簡単にするため、２ライン前までの履歴をとる場合を
例として説明する。Hereinafter, the present invention will be explained in detail based on the drawings, but to simplify the explanation, the case where the history up to two lines before is taken will be explained as an example.
第１図はＮライン口を印字する場合のヘッド通電中の変
え方を示したものであり、（Ｎ−２）ライン目を印字し
なかった場合は（ア）の期間、（Ｎ−１）ライン口を印
字しなかった場合は（イ）の期間、そしてＮライン目の
印字分として（つ）の期間を通電する。Figure 1 shows how to change the head energization when printing the N line opening, and if the (N-2)th line is not printed, the period of (A), (N-1) If the line opening is not printed, electricity is applied for the period (a) and for the period (2) for printing the Nth line.
Ｎライン目を印字しない場合は（ア）も（イ）も（つ）
も通電しない。又、（Ｎ−２）ライン口も（Ｎ−１）ラ
イン目も印字せずＮライン目を印字する場合は（ア）＋
（イ）＋（つ）の期間を通電する。If the Nth line is not printed, (A) and (B) are also (tsu).
It doesn't turn on either. Also, if you want to print the Nth line without printing the (N-2) line opening or the (N-1) line, use (A) +
Power is applied for a period of (a) + (t).
第２図は前記の履歴処理を行ったデータのヘッドへの転
送、データ・ランチ信号、及びヘッド通電パルスのタイ
ミングを示したものである。FIG. 2 shows the timing of the transfer of data subjected to the history processing to the head, the data launch signal, and the head energizing pulse.
（イ）のデータは（Ｎ−２）ライン口を反転させたデー
タと（Ｎ−１）ライン目を反転させたデータとＮライン
口のデータの論理積をとったもので、ヘッドへのデータ
転送後ランチ信号を出し、１！！歴処理に合わせたヘッ
ド通電パルス（ア）を出力する。（ロ）のデータは（Ｎ
−１）ライン目を反転させたデータとＮライン目のデー
タの論理積をとったもので、（イ）の通電パルスが対応
する。The data in (a) is the logical AND of the (N-2) line inverted data, (N-1) line inverted data, and the N line inlet data, and is the data to the head. After transfer, give a lunch signal and 1! ! Outputs a head energization pulse (a) that matches the history processing. The data in (b) is (N
-1) This is the logical product of the inverted data on the line and the data on the Nth line, and corresponds to the energizing pulse in (a).
（ハ）はＮライン目のデータそのもので（つ）の通電パ
ルスが対応する。(C) is the Nth line data itself and corresponds to (3) energizing pulses.
このように３回のデータ転送と通電パルスにより２ライ
ン前までのデータとのＨＵｉｊｉ制御を行うわけである
が、データ反転や論理演算、又、３回のデータ転送後、
次のラインのデータを入力するため（Ｎ−１）ライン目
とＮライン口のデータを移動させる等、ソフトウェアで
処理を行うと極めて時間がかかった。In this way, three data transfers and energizing pulses perform HUiji control with the data up to two lines before, but after data inversion, logical operations, and three data transfers,
It took an extremely long time to perform processing using software, such as moving data from the (N-1)th line to the Nth line entrance in order to input data for the next line.
第３図は本発明によるデータ転送回路で、２ライン前ま
での履歴をとるならば、３本のシフト・レジスタ（Ａ、
Ｂ、Ｃ）とそれらの出力を論理演ｌγするゲート及び（
３号切り換え回路（１，２゜３）から成る。FIG. 3 shows a data transfer circuit according to the present invention. If the history up to two lines before is recorded, three shift registers (A,
B, C) and a gate that logically performs logic operation lγ on their outputs and (
Consists of No. 3 switching circuit (1, 2°3).
シフト・レジスタ八には（Ｎ−２）ライン口のデータが
、シフト・レジスタＢには（Ｎ−１）ライン目のデータ
が、シフト・レジスタＣにはＮライン目のデータが入る
ようになっている。Shift register 8 now contains data from the (N-2) line, shift register B contains data from the (N-1) line, and shift register C contains data from the N-th line. ing.
第４図は動作の説明図であり、信号切り換え回路が（ａ
）の状態では転送りロックにより（Ｎ−２）ライン目を
反転させたデータと（Ｎ−１）ライン目を反転させたデ
ータとＮライ゛ン目のデータの積が演算処理されながら
、信号切り換え回路３からヘッドへ転送される。同時に
シフト・レジスタＡ、Ｂには（Ｎ−１）ライン口のデー
タが入り、シフト・レジスタＣには、Ｎライン口のデー
タが入る。FIG. 4 is an explanatory diagram of the operation, in which the signal switching circuit (a
), due to the transfer lock, the product of the inverted data of the (N-2)th line, the inverted data of the (N-1)th line, and the data of the Nth line is processed, and the signal is The signal is transferred from the switching circuit 3 to the head. At the same time, shift registers A and B receive data from the (N-1) line entrance, and shift register C receives data from the N line entrance.
１３号切り換え回路が（ｂ）の状態では（Ｎ−１）ライ
ン口を反転させたデータとＮライン目のデータの積が転
送され、シフト・レジスタＡ、 Ｂには（＋１−１）
ライン口のデータが、ＣにはＮライン口のデータが再び
入る。When the No. 13 switching circuit is in state (b), the product of (N-1) line inverted data and the Nth line data is transferred, and (+1-1) is transferred to shift registers A and B.
The data at the line entrance is entered into C again, and the data at the N line entrance is entered into C again.
信号切り換え回路が（Ｃ）の状態ではＮライン目のデー
タのみが転送され、シフト・レジスタＡには（Ｎ−１）
ライン口のデータが、ＢにはＮライン口のデータが、Ｃ
には次のラインのデータが入る。When the signal switching circuit is in state (C), only the Nth line data is transferred, and shift register A has (N-1) data.
The data at the line entrance is in B, the data at the N line entrance is in C, and the data at the N line entrance is in B.
contains the data for the next line.
つまり、１ライン分のデータをこの回路に送ってやれば
、信号切り換え回路の操作のみでＢ歴処理されたデータ
が必要回数分出力され、同時に順歴制？）Ｕに必要な数
ライン分のデータの移動が効率良く、高速に行える。In other words, if you send one line of data to this circuit, the B-history processed data will be output the required number of times just by operating the signal switching circuit. ) Data for several lines required for U can be moved efficiently and at high speed.
第５図は、図３を拡張したものであり、（ｎ −１）ラ
イン前までの履歴を見る回路の例である。FIG. 5 is an expanded version of FIG. 3, and is an example of a circuit that checks the history up to (n-1) lines before.
基本動作は同様に行え、何ラインでも拡張できる事を示
したものである。This shows that the basic operations can be performed in the same way and can be extended to any number of lines.
第１図は履歴制御の方法、第２図はサーマル・ライン・
ヘッドの駆動タイミング、第３図は本発明の回路の一例
、第４図はその動作説明図、第５図は本発明の拡張性を
示したものである。
Ａ、Ｂ、Ｃ・・・シフト・レジスタ
１．２．３・・・信号切り換え回路
以上
○○
Ｎ−１つイン目 ○ ○
○○
Ｎ ライン目 ○ ○
履歴制＃ｐ万池Ｅ示しに説明図
第１図
サーマルラインへ・ソドの駈中カタイミン７゛説σ月図
第２図
第４図・（δ）
本発明作？ｌＩ７を兇明図
第４図（ｂ、）
木屑５σ月を乍ｔＩＪ寥紀θ月図
第４図＜Ｃ）Figure 1 shows the history control method, Figure 2 shows the thermal line
3 shows an example of the circuit of the present invention, FIG. 4 is an explanatory diagram of its operation, and FIG. 5 shows the extensibility of the present invention. A, B, C...Shift register 1.2.3...Signal switching circuit and above ○○ N-1st in ○ ○ ○○ Nth line ○ ○ History system #p ManchiE explanation as shown Figure 1 To the thermal line - Sodo's cantering Kataimin 7゛ theory σ Moon diagram Figure 2 Figure 4 (δ) Invented work? Figure 4 (b,) Figure 4 (b,) Figure 4 (b,) Figure 4 (b,) Figure 4 (b,) Figure 4 (b,) Figure 4 (b,)
Claims (1)
ート及びデータ信号の流れを変える信号切り換え回路か
ら成り、サーマル・ライン・ヘッドへ数ライン前からの
データと履歴処理を行いながら、前記サーマル・ライン
・ヘッドにデータ転送を行い、同時に次のラインのデー
タを入力するために、履歴処理に必要な以前の数ライン
分のデータを移動させるようにしたサーマル・ヘッドの
駆動回路。It consists of multiple shift registers, gates that perform logical operations on their outputs, and signal switching circuits that change the flow of data signals. - A thermal head drive circuit that transfers data to the head and simultaneously moves the previous several lines of data necessary for history processing in order to input the next line of data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26522186A JP2566136B2 (en) | 1986-11-07 | 1986-11-07 | Thermal head drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26522186A JP2566136B2 (en) | 1986-11-07 | 1986-11-07 | Thermal head drive circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63118274A true JPS63118274A (en) | 1988-05-23 |
| JP2566136B2 JP2566136B2 (en) | 1996-12-25 |
Family
ID=17414205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26522186A Expired - Lifetime JP2566136B2 (en) | 1986-11-07 | 1986-11-07 | Thermal head drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2566136B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63278870A (en) * | 1987-05-11 | 1988-11-16 | Tokyo Electric Co Ltd | Thermal printer |
| JPH0355269A (en) * | 1989-04-05 | 1991-03-11 | Matsushita Electric Ind Co Ltd | Thermal line printer |
| JPH0494646U (en) * | 1991-01-09 | 1992-08-17 |
-
1986
- 1986-11-07 JP JP26522186A patent/JP2566136B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63278870A (en) * | 1987-05-11 | 1988-11-16 | Tokyo Electric Co Ltd | Thermal printer |
| JPH0355269A (en) * | 1989-04-05 | 1991-03-11 | Matsushita Electric Ind Co Ltd | Thermal line printer |
| JPH0494646U (en) * | 1991-01-09 | 1992-08-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2566136B2 (en) | 1996-12-25 |
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Legal Events
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|---|---|---|---|
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Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
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Free format text: JAPANESE INTERMEDIATE CODE: R350 |
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| EXPY | Cancellation because of completion of term |