JPH0479306B2 - - Google Patents
Info
- Publication number
- JPH0479306B2 JPH0479306B2 JP60297249A JP29724985A JPH0479306B2 JP H0479306 B2 JPH0479306 B2 JP H0479306B2 JP 60297249 A JP60297249 A JP 60297249A JP 29724985 A JP29724985 A JP 29724985A JP H0479306 B2 JPH0479306 B2 JP H0479306B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- printing
- printing operation
- set temperature
- detected temperature
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Dot-Matrix Printers And Others (AREA)
Description
【発明の詳細な説明】
(イ) 産業上の利用分野
本発明は、印字ヘツドにマグネツトコイルを有
するドツトインパクトプリンタに係り、印字ヘツ
ドの検出温度に応じて、印字動作を制御する印字
制御方式に関する。[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a dot impact printer having a magnetic coil in the print head, and a print control system that controls printing operation according to the detected temperature of the print head. Regarding.
(ロ) 従来の技術
実開昭58−136339号公報に開示されているよう
に、従来のドツトインパクトプリンタにおいて
は、印字ヘツドのマグネツトコイルの焼損を防ぐ
ため、印字ヘツドに温度センサーとしてサーミス
タを取り付け、サーミスタにより検出される検出
温度が所定の設定温度より低いときには、印字動
作を続行し、高いときは検出温度が設定温度より
低く下がるまで印字動作を停止させていた。(b) Prior Art As disclosed in Japanese Utility Model Application Publication No. 58-136339, in conventional dot impact printers, a thermistor is installed as a temperature sensor in the print head in order to prevent the magnetic coil of the print head from burning out. When the detected temperature detected by the thermistor is lower than a predetermined set temperature, the printing operation continues, and when it is higher, the printing operation is stopped until the detected temperature falls below the set temperature.
そして、設定温度は、印字ヘツドのマグネツト
コイルにおける繰り返し使用時の耐熱温度TPに
応じて定められていた。 The set temperature was determined according to the heat-resistant temperature T P of the magnetic coil of the print head during repeated use.
(ハ) 発明が解決しようとする問題点
従来の技術では、上述の如く、印字ヘツドの検
出温度が設定温度より高くなつた場合には、検出
温度が設定温度より低く下がるまで、印字動作を
完全に停止していたので、印字速度が極端に低下
するという問題があつた。(c) Problems to be solved by the invention In the conventional technology, as mentioned above, when the detected temperature of the print head becomes higher than the set temperature, the printing operation is not completed until the detected temperature falls below the set temperature. There was a problem in that the printing speed was extremely slow because the printer stopped at a certain point.
(ニ) 問題点を解決するための手段
本発明は、印字ヘツドのマグネツトコイルにお
いては、繰り返し使用時の耐熱温度TPが例えば
180℃であつても、瞬時的な使用時の耐熱温度
TPHは、220℃とTPより高いという事実に鑑み為
されたものであり、耐熱温度TP及びTPHに基づく
第１の温度T1及び第２の温度T2（T1＜T2）を
各々第１及び第２の設定温度として定め、各行の
印字に先立ち、印字ヘツドの検出温度が第１の設
定温度を越えているか否か判定し、越えていない
ときは当該行の印字動作を実行し、越えていると
きには印字動作を所定時間停止し、停止後に、検
出温度が第１の設定温度より高い第２の設定温度
を越えているか否か判定し、越えていなければ当
該行の印字動作を実行し、越えていれば、検出温
度が前記第１の設定温度に低下するまで印字動作
を停止するか、もしくは、検出温度が第１の設定
温度を越えているか否か判定する最初の判定ステ
ツプに戻るように、制御するものである。(d) Means for Solving the Problems The present invention provides that the magnetic coil of the printing head has a heat-resistant temperature T P during repeated use, for example.
Heat resistant temperature during instantaneous use even at 180℃
T PH was created in view of the fact that T PH is 220°C, which is higher than T P , and the first temperature T 1 and second temperature T 2 based on the heat-resistant temperature T P and T PH (T 1 < T 2 ) are set as the first and second set temperatures, respectively, and before printing each line, it is determined whether the detected temperature of the print head exceeds the first set temperature, and if it does not, the printing operation for that line is started. If the detected temperature exceeds the second set temperature, the printing operation is stopped for a predetermined time, and after stopping, it is determined whether or not the detected temperature exceeds the second set temperature, which is higher than the first set temperature. The printing operation is executed, and if the detected temperature exceeds the first set temperature, the printing operation is stopped until the detected temperature falls to the first set temperature, or the first step is to determine whether the detected temperature exceeds the first set temperature. This control returns to the determination step.
(ホ) 作用
本発明では、次行の印字を行なおうとすると
き、所定時間の停止後は、検出温度が第１設定温
度を越えていても、第２設定温度より低ければ、
次行の印字が行なわれるので、従来に比べ、印字
速度が速くなる。(E) Effect In the present invention, when printing the next line, even if the detected temperature exceeds the first set temperature but is lower than the second set temperature after stopping for a predetermined time, if the detected temperature is lower than the second set temperature,
Since the next line is printed, the printing speed is faster than in the past.
(ヘ) 実施例
本発明の実施例として、シリアル型ドツトイン
パクトプリンタの構成を示すブロツク図を第２図
に、そして、その動作フローチヤートを第１図に
示す。(f) Embodiment As an embodiment of the present invention, a block diagram showing the configuration of a serial type dot impact printer is shown in FIG. 2, and an operation flow chart thereof is shown in FIG. 1.
第２図において、１はマグネツトコイル２を備
えた印字ヘツド、３は印字ヘツド１に取り付けら
れた温度センサーとしてのサーミスタ、４はサー
ミスタ３の電圧変化をデジタル量に変換するＡ／
Ｄコンバータ、５は印字動作を制御するCPU、
６は印字データを記憶する印字バツフア、７は印
字ヘツド１のマグネツトコイル２に電流を流すた
めのマグネツト駆動回路、７及び８はCRモータ
及びLFモータを各々駆動するCRモータ駆動回路
及びLFモータ駆動回路、９，１０，１１はＩ／
Ｏであり、電源電圧VCCから抵抗１２を介してサ
ーミスタ３に電流を流し、サーミスタ３の抵抗変
化による電圧変化から、印字ヘツド１の温度TH
を検出している。 In Fig. 2, 1 is a print head equipped with a magnetic coil 2, 3 is a thermistor as a temperature sensor attached to the print head 1, and 4 is an A/R converter that converts the voltage change of the thermistor 3 into a digital quantity.
D converter, 5 is a CPU that controls printing operation,
6 is a print buffer for storing print data; 7 is a magnet drive circuit for passing current through the magnet coil 2 of the print head 1; 7 and 8 are a CR motor drive circuit and an LF motor that drive the CR motor and LF motor, respectively. Drive circuit, 9, 10, 11 are I/
A current is passed from the power supply voltage V CC to the thermistor 3 through the resistor 12, and from the voltage change due to the resistance change of the thermistor 3, the temperature of the print head 1 T H
is being detected.
次に、動作を説明すると、前行の印字が終了
し、次行の印字を行おうとするとき、印字に先立
ち、第１図に示すように、先ず、検出温度THが
第１設定温度T1より高いか否か判定する。この
第１の判定において、検出温度THが第１設定温
度T1より低ければ、従来通り、次行の印字を行
なうが、TH＞T1ならば印字ヘツド１の温度を下
げるために、所定時間、例えば、15秒間の休止時
間をおき、休止後、休止後の検出温度THが、第
２の設定温度T2（T1＜T2）より高いか否かの第
２の判定に移る。 Next, to explain the operation, when printing of the previous line is completed and the next line is to be printed, as shown in Figure 1, before printing, the detected temperature T H is set to the first set temperature T. Determine whether it is higher than 1 . In this first judgment, if the detected temperature T H is lower than the first set temperature T 1 , the next line is printed as usual, but if T H > T 1 , in order to lower the temperature of the print head 1, After a predetermined period of rest, for example, 15 seconds, after the rest, a second determination is made as to whether the detected temperature T H after the rest is higher than the second set temperature T 2 (T 1 < T 2 ). Move.
ここで、第１及び第２の設定温度T1及びT2は、
各々、繰り返し使用時の耐熱温度TP及び瞬時的
な使用時の耐熱温度TPHに関連して、実験データ
に基づき定められており、例えば、T1＝100℃、
T2＝120℃である。即ち、第２設定温度T2は、所
定時間の停止後に、検出温度がこの温度T2にあ
つても、１行分の印字動作のような瞬時的な使用
を次に実行するのであれば、その使用によつてマ
グネツトコイル２が焼損することを防止できる程
度の温度に設定してある。 Here, the first and second set temperatures T 1 and T 2 are:
The heat-resistant temperature T P during repeated use and the heat-resistant temperature T PH during instantaneous use are determined based on experimental data, for example, T 1 = 100°C,
T 2 =120°C. That is, the second set temperature T 2 is set as follows, even if the detected temperature is at this temperature T 2 after stopping for a predetermined time, if an instantaneous use such as printing one line is to be performed next. The temperature is set at a level that can prevent the magnet coil 2 from burning out due to its use.
第２の判定において、TH＞T2であれば、検出
温度THが第１設定温度T1に下がるまで印字動作
を停止し続け、結果として、従来と全く同様の動
作を行なうが、TH≦T2であれば、１行分の印字
動作を行なつてしまう。しかしながら、上述した
如く、この印字動作は瞬時的であるので、マグネ
ツトコイル２が焼損することはない。そして、こ
の１行分の印字動作が終了すると、第１の判定に
戻り、以下、同様のステツプを繰り返す。 In the second judgment , if T If H ≦T 2 , printing operation for one line will be performed. However, as mentioned above, since this printing operation is instantaneous, the magnet coil 2 will not be burnt out. When the printing operation for one line is completed, the process returns to the first determination and the same steps are repeated.
そこで、例えば、この１行分の印字動作後、検
出温度THが、TH＞T1ならば、再び印字動作は所
定時間停止する。ところが、この１行分の印字動
作において、印字するデータの密度が小さいとき
は、印字中に検出温度THが下がる可能性もあり、
特に、シリアル型のプリンタでは、CRモータに
よる印字ヘツド１の移動が冷却効果を有するの
で、その可能性は高い。従つて、１行分の印字後
の検出温度THが、TH≦T1であれば、次の行の印
字は通常どおり連続して行なわれることととな
る。 Therefore, for example, after the printing operation for one line, if the detected temperature T H is T H > T 1 , the printing operation is stopped again for a predetermined period of time. However, in this one line printing operation, if the density of the data to be printed is small, there is a possibility that the detected temperature T H may drop during printing.
In particular, in a serial type printer, the movement of the print head 1 by the CR motor has a cooling effect, so this possibility is high. Therefore, if the detected temperature T H after printing one line is T H ≦T 1 , the next line will be printed continuously as usual.
尚、第２の判定後の１行分の印字動作の後、第
１の判定に戻るのは、印字ヘツド１の実際の温度
と検出温度に若干の遅延時間があるためであり、
TH≦T2であるとき連続した行印字を許せば、マ
グネツトコイル２が焼損する恐れがある。 The reason why the process returns to the first judgment after the printing operation for one line after the second judgment is because there is a slight delay time between the actual temperature of the print head 1 and the detected temperature.
If continuous line printing is allowed when T H ≦T 2 , the magnet coil 2 may be burnt out.
上述の実施例においては、第２の判定でTH＞
T2ならば、TH＜T1となるまで印字を停止するよ
うにしたが、第１の判定へ移るようにしても良
い。 In the above embodiment, in the second determination T H >
If T 2 , printing is stopped until T H <T 1 , but it is also possible to move to the first determination.
(ト) 発明の効果
本発明に依れば、印字ヘツドのマグネツトコイ
ルの焼損を確実に防止すると共に、印字速度を向
上させることが可能となる。(g) Effects of the Invention According to the present invention, it is possible to reliably prevent burnout of the magnetic coil of the printing head and to improve the printing speed.
第１図は本発明の実施例の動作を示すフローチ
ヤート、第２図は本発明の実施例の構成を示すブ
ロツク図である。
１……印字ヘツド、２……マグネツトコイル、
３……サーミスタ、５……CPU、６……マグネ
ツト駆動回路。
FIG. 1 is a flowchart showing the operation of an embodiment of the invention, and FIG. 2 is a block diagram showing the configuration of the embodiment of the invention. 1...Printing head, 2...Magnetic coil,
3...Thermistor, 5...CPU, 6...Magnet drive circuit.
Claims (1)
印字ヘツドの温度を検出する温度センサーと、検
出温度に応じて印字動作を制御する制御手段とを
備え、複数行の印字を行うシリアル型のドツトイ
ンパクトプリンタにおいて、各行の印字に先立
ち、検出温度が第１の設定温度を越えているか否
か第１の判定を行い、越えていないときは当該行
の印字動作を実行し、越えているときには印字動
作を所定時間停止し、停止後に、検出温度が第１
の設定温度より高い第２の設定温度を越えている
か否か第２の判定を行い、越えていなければ当該
行の印字動作を実行し、越えていれば検出温度が
前記第１の設定温度に低下するまで印字動作を停
止することを特徴とした印字制御方法。 ２ マグネツトコイルを有する印字ヘツドと、該
印字ヘツドの温度を検出する温度センサーと、検
出温度に応じて印字動作を制御する制御手段とを
備え、複数行の印字を行うシリアル型のドツトイ
ンパクトプリンタにおいて、各行の印字に先立
ち、検出温度が第１の設定温度を越えているか否
か第１の判定を行い、越えていないときは当該行
の印字動作を実行し、越えているときには印字動
作を所定時間停止し、停止後に、検出温度が第１
の設定温度より高い第２の設定温度を越えている
か否か第２の判定を行い、越えていなければ当該
行の印字動作を実行し、越えていれば前記第１の
判定に戻ることを特徴とした印字制御方法。[Scope of Claims] 1. A printer comprising a printing head having a magnetic coil, a temperature sensor for detecting the temperature of the printing head, and a control means for controlling printing operation according to the detected temperature, and capable of printing multiple lines. In a serial type dot impact printer, before printing each line, a first judgment is made as to whether or not the detected temperature exceeds the first set temperature. When the printing operation is stopped, the printing operation is stopped for a predetermined time, and after the printing operation is stopped, the detected temperature reaches the first
A second determination is made as to whether or not the second set temperature, which is higher than the set temperature of A printing control method characterized by stopping printing operation until the temperature decreases. 2. A serial type dot impact printer that prints multiple lines and is equipped with a print head having a magnetic coil, a temperature sensor that detects the temperature of the print head, and a control means that controls printing operations according to the detected temperature. Before printing each line, a first judgment is made as to whether or not the detected temperature exceeds the first set temperature, and if the detected temperature does not exceed the first set temperature, the printing operation for the line is executed, and if it exceeds the printing operation, the printing operation is performed. Stops for a predetermined time, and after stopping, the detected temperature reaches the first
A second determination is made as to whether or not the second set temperature, which is higher than the set temperature of Printing control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29724985A JPS62152868A (en) | 1985-12-27 | 1985-12-27 | Printing-controlling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29724985A JPS62152868A (en) | 1985-12-27 | 1985-12-27 | Printing-controlling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62152868A JPS62152868A (en) | 1987-07-07 |
| JPH0479306B2 true JPH0479306B2 (en) | 1992-12-15 |
Family
ID=17844085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29724985A Granted JPS62152868A (en) | 1985-12-27 | 1985-12-27 | Printing-controlling system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62152868A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2543952B2 (en) * | 1988-06-07 | 1996-10-16 | 沖電気工業株式会社 | Printer device |
| US5166699A (en) * | 1990-04-11 | 1992-11-24 | Canon Kabushiki Kaisha | Recording apparatus |
| JP2003103807A (en) * | 2001-09-28 | 2003-04-09 | Seiko Epson Corp | Method for controlling recording head of recorder, and recorder |
| JP2004098617A (en) * | 2002-09-12 | 2004-04-02 | Seiko Epson Corp | Dot impact printer, control method therefor, program for performing control method and recording medium on which program is recorded |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985771A (en) * | 1982-11-06 | 1984-05-17 | Usac Electronics Ind Co Ltd | Partition printing system for shuttle printer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60182148U (en) * | 1985-04-17 | 1985-12-03 | 富士通株式会社 | serial dot printer |
-
1985
- 1985-12-27 JP JP29724985A patent/JPS62152868A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985771A (en) * | 1982-11-06 | 1984-05-17 | Usac Electronics Ind Co Ltd | Partition printing system for shuttle printer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62152868A (en) | 1987-07-07 |
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