JPS62248656A - Ink jet printer - Google Patents
Ink jet printerInfo
- Publication number
- JPS62248656A JPS62248656A JP9198186A JP9198186A JPS62248656A JP S62248656 A JPS62248656 A JP S62248656A JP 9198186 A JP9198186 A JP 9198186A JP 9198186 A JP9198186 A JP 9198186A JP S62248656 A JPS62248656 A JP S62248656A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- printer
- preliminary
- switch
- ejection
- 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
Links
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000012217 deletion Methods 0.000 abstract 1
- 230000037430 deletion Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000007639 printing 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
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/1652—Cleaning of print head nozzles by driving a fluid through the nozzles to the outside thereof, e.g. by applying pressure to the inside or vacuum at the outside of the print head
Landscapes
- Ink Jet (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は予備吐出機能を有するインクジェットプリンタ
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an inkjet printer having a preliminary ejection function.
［従来の技術］
インクジェット法により記録を行なうプリンタでは、長
時間インクを吐出させないで放置すると記録開始時に正
常なインク吐出信号を送ったにも関わらず、インクが吐
出されないという現象が起こる事が知られている。この
初期吐出不良発生の大きな要因としては、以下の２つの
理由が考えられる。その１つは低温環境でインクの温度
が低下し、これに伴ってインク粘度が増大し、その粘性
抵抗によりインク吐出に要するエネルギーが増大するた
め吐出エネルギー不足によって吐出不良を引き起こすも
のである。他の理由としては吐出穴表面でのインク蒸発
によるインク粘度の上昇による粘性抵抗の増大である。[Prior Art] It is known that in printers that perform recording using the inkjet method, if the printer is left without ejecting ink for a long time, a phenomenon occurs in which ink is not ejected even though a normal ink ejection signal is sent at the start of recording. It is being The following two reasons can be considered as major causes of this initial ejection failure. One of them is that the temperature of the ink decreases in a low-temperature environment, the viscosity of the ink increases accordingly, and the energy required for ink ejection increases due to the viscous resistance, causing ejection failure due to insufficient ejection energy. Another reason is an increase in viscous resistance due to an increase in ink viscosity due to ink evaporation on the surface of the ejection hole.
これらは特に低温・低湿環境下において顕著であり、イ
ンクジェット印字方式においては大きな問題となってい
る。These problems are particularly noticeable in low-temperature, low-humidity environments, and are a major problem in inkjet printing systems.
この対策の１つの手段として予備吐出方式と呼ばれる方
法がある。これは、例えば電源投入時等に自動的にイン
クをしかるべき回数、インク吸収体等に吐出させてイン
ク粘度を低下させ、この予備吐出動作内でインク吐出不
良を解消し、プリント時には正常な吐出を得る方式であ
る。One of the measures against this problem is a method called a preliminary ejection method. For example, when the power is turned on, ink is automatically ejected a certain number of times onto an ink absorber, etc. to lower the ink viscosity, and during this preliminary ejection operation, ink ejection failure is resolved, and normal ejection occurs when printing. This is the method to obtain.
［発明が解決しようとする問題点］
従来、この予備吐出時の吐出回数はそれぞれの機種にお
いて設定された、ある一定値に固定されており、可変出
来ないものであった。前述した様に、インクの吐出不良
を解消するのに要する予備吐出の回数は、使用環境条件
により大きく左右される傾向にあり、この予備吐出回数
は通常厳しい条件に合わせて設定されている。従って、
悪環境条件下で使用される場合には予備吐出は有効であ
るが、好条件の下、つまりインクの吐出不良が起こりに
くい環境条件下で使用される場合には予備吐出の回数は
それほど多くなくても良いにもかかわらず、予め定めら
れた回数分書に予備吐出を行なうことになり、インクの
無駄な消費となっていた。[Problems to be Solved by the Invention] Conventionally, the number of ejections during preliminary ejection has been fixed to a certain constant value set for each model and cannot be changed. As described above, the number of preliminary ejections required to resolve ink ejection failures tends to be largely influenced by the usage environment conditions, and the number of preliminary ejections is usually set in accordance with severe conditions. Therefore,
Preliminary ejection is effective when used under adverse environmental conditions, but the number of preliminary ejections is not so high when used under favorable conditions, that is, environmental conditions where ink ejection failure is unlikely to occur. However, preliminary ejection is performed a predetermined number of times, resulting in wasted ink consumption.
本発明は上記従来例に鑑みなされたもので、予備吐出数
を設定可能にしてインクの無駄な消費をなくすようにし
たインクジェットプリンタを提供することを目的とする
。The present invention has been made in view of the above conventional example, and an object of the present invention is to provide an inkjet printer in which the number of preliminary ejections can be set to eliminate wasteful consumption of ink.
［問題点を解決するための手段］ 上記目的を達成する本発明は以下の様な構成からなる。[Means for solving problems] The present invention, which achieves the above object, has the following configuration.
即ち、インク滴を吐出して記録を行うヘッドと、ヘッド
を駆動する駆動手段と、インク予備吐出数を設定する設
定手段を備える。That is, it includes a head that performs recording by ejecting ink droplets, a driving means that drives the head, and a setting means that sets the number of preliminary ink ejections.
［作用］
以上の構成において、本発明のインクジェットプリンタ
は、インクの予備吐出回数を設定する設定手段に設定さ
れた回数分、駆動手段によりヘッドを駆動してインクの
予備吐出を行なうように動作する。[Function] With the above configuration, the inkjet printer of the present invention operates to perform preliminary ink ejection by driving the head by the driving means the number of times set in the setting means for setting the number of times of preliminary ink ejection. .
［実施例］
以下、添付図面に従って本発明の実施例を詳細に説明す
る。[Examples] Examples of the present invention will be described in detail below with reference to the accompanying drawings.
［インクジェットプリンタ付卓上計算機の説明（第１図
〜第３図）］
第１図は本発明の一実施例のインクジェットプリンタ付
卓上計算記の外観斜視図である。[Description of a desk calculator with an inkjet printer (FIGS. 1 to 3)] FIG. 1 is an external perspective view of a desk calculator with an inkjet printer according to an embodiment of the present invention.
図中、１は卓上計算機の本体、２は予備吐出ドツト数の
設定スイッチで、本実施例ではスライドスイッチを用い
、Ｓ、Ｗの２段階に設定可能にしている。即ちＳは夏（
Ｓｕｍｍｅｒ） Ｗは冬（Ｗｉｎｔｅｒ）を示し、イン
クの吐出性にとって好条件の夏等では予備吐出ドツト数
を少なく設定したＳに合わせ、悪条件の冬等には予備吐
出ドツト数を多く設定したＷにスイッチを設定するよう
に設計されている。In the figure, 1 is the main body of the desk calculator, and 2 is a switch for setting the number of pre-discharge dots. In this embodiment, a slide switch is used to enable setting in two stages, S and W. That is, S is summer (
(Summer) W indicates winter, and when the conditions are favorable for ink ejection performance such as summer, the number of preliminary ejection dots is set to be small, and in accordance with S, the number of preliminary ejection dots is set to be large. It is designed to set the switch to .
３はキーボード４より入力された数字や計算結果等を表
示する表示部、４は数字や各種ファンクション等を入力
するキーボードである。５はインクジェットプリンタ部
で、キーボード４からの指示入力により入力された数値
や計算結果等を用紙６上に印刷する。Reference numeral 3 denotes a display section for displaying numbers inputted from a keyboard 4, calculation results, etc., and reference numeral 4 denotes a keyboard for inputting numbers, various functions, etc. Reference numeral 5 denotes an inkjet printer unit that prints numerical values, calculation results, etc. input by inputting instructions from the keyboard 4 onto a sheet of paper 6.
第２図は第１図の卓上計算機のブロック図を示す図で、
第１図と同一部分は同一記号で示している。Figure 2 is a block diagram of the desktop calculator in Figure 1.
The same parts as in FIG. 1 are indicated by the same symbols.
２０は計算機全体を制御するＣＰＵで、ＣＰＵの制御プ
ログラムやデータ等を内蔵するＲＯＭ、及びＣＰＵのワ
ークエリアとして使用されるＲＡＭ等を含んでいる。２
１はＣＰＵ２０とインクジェットプリンタ５に介在して
各種制御信号のやり取りを行なうプリンタインタフェー
ス部である。A CPU 20 controls the entire computer, and includes a ROM containing CPU control programs, data, etc., and a RAM used as a work area for the CPU. 2
Reference numeral 1 denotes a printer interface section that intervenes between the CPU 20 and the inkjet printer 5 and exchanges various control signals.
２２はインクジェットプリンタ５やＣＰＵ２０等に電源
を供給する電源である。22 is a power source that supplies power to the inkjet printer 5, the CPU 20, and the like.
［電源投入時の動作説明（第３図）］
第３図は本実施例の卓上計算機の電源人力時の処理を示
すフローチャートで、本プログラムはＣＰＵ２０のＲＯ
Ｍに格納されている。[Explanation of operation when power is turned on (Fig. 3)] Fig. 3 is a flowchart showing the processing when the desktop computer of this embodiment is powered on manually.
It is stored in M.
電源が投入されるとステップＳ１でＲＡＭのクリアやイ
ンジェットプリンタ５の初期化処理、表示部における表
示データの消去等のイニシャライズ処理を行なう。ステ
ップＳ２で予備吐出数設定スイッチ２を読み込み、ステ
ップＳ３でスイッチ２の設定値に従ってインクジェット
プリンタ５のヘッドを駆動して予備吐出を行なう。When the power is turned on, in step S1, initialization processing such as clearing the RAM, initializing the in-jet printer 5, and erasing display data on the display section is performed. In step S2, the preliminary ejection number setting switch 2 is read, and in step S3, the head of the inkjet printer 5 is driven according to the setting value of the switch 2 to perform preliminary ejection.
本実施例ではスイッチ２を２段階スライドスイッチとし
てＳとＷに切り換えて吐出回数を規定するようにしてい
るが、これに限定されるものではなく、例えばディップ
スイッチや数字をセットできるデジタルスイッチ等によ
り吐出回数を設定するようにしても良い。また予備吐出
を必要としない時等はスイッチによって数字を０にセッ
トするか、あるいはスイッチをオフにして予備吐出を行
なわないようにできることはもちろんである。予備吐出
が終了するとステップＳ４に進み、キーボード４よりの
キー人力により計算や表示出力等を行なう通常のルーチ
ンに進む。In this embodiment, the switch 2 is a two-stage slide switch, and the number of discharges is determined by switching between S and W, but the invention is not limited to this. For example, a dip switch or a digital switch that can set numbers can be used. The number of times of ejection may be set. Furthermore, when preliminary ejection is not required, it is of course possible to set the number to 0 using a switch or turn off the switch so that no preliminary ejection is performed. When the preliminary ejection is completed, the process proceeds to step S4, and the process proceeds to a normal routine in which calculations, display outputs, etc. are performed manually using the keys on the keyboard 4.
以上述べた如く本実施例によれば、インジェットヘッド
の予備吐出の回数を任意に設定でき、インクの無駄な消
費を少なくできるという効果がある。As described above, according to this embodiment, the number of preliminary ejections of the in-jet head can be set arbitrarily, and wasteful consumption of ink can be reduced.
［発明の効果コ
以上述べた如く本発明によれば、予備吐出の回数を任意
に設定できるため、インクの消費を少なくできるという
効果がある。[Effects of the Invention] As described above, according to the present invention, since the number of preliminary ejections can be set arbitrarily, there is an effect that ink consumption can be reduced.
第１図は本発明の一実施例のインクジェットプリンタ付
卓上計算機の外観斜視図、
第２図は本実施例のインクジェットプリンタ付卓上計算
機の構成図、
第３図は電源投入時のＣＰＵの動作を示すフローチャー
トである。
図中、１・・・卓上計算機本体、２・・・予備吐出数設
定スイッチ、３・・・表示部、４・・・キーボード、５
・・・インクジェットプリンタ、２ｏ・・・ＣＰＵ、２
１・・・プリンタインタフェース部、２２・・・電源で
ある。Fig. 1 is an external perspective view of a desktop calculator with an inkjet printer according to an embodiment of the present invention, Fig. 2 is a configuration diagram of the desktop calculator with an inkjet printer according to the embodiment, and Fig. 3 shows the operation of the CPU when the power is turned on. FIG. In the figure, 1...desktop calculator main body, 2...preliminary discharge number setting switch, 3...display section, 4...keyboard, 5
...Inkjet printer, 2o...CPU, 2
1... Printer interface unit, 22... Power supply.
Claims (2)
ドを駆動する駆動手段と、インク予備吐出数を設定する
設定手段を備えたインクジェットプリンタであって、前
記駆動手段は前記設定手段に設定された回数前記ヘッド
を駆動してインクの予備吐出を行なうようにしたことを
特徴とするインクジェットプリンタ。(1) An inkjet printer comprising a head for ejecting ink droplets to perform recording, a driving means for driving the head, and a setting means for setting the number of preliminary ink ejections, wherein the driving means is connected to the setting means. An inkjet printer characterized in that the head is driven a set number of times to perform preliminary ejection of ink.
源投入時に行われることを特徴とする特許請求の範囲第
１項に記載のインクジェットプリンタ。(2) The inkjet printer according to claim 1, wherein the preliminary ejection of ink is performed when the power of the inkjet printer is turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9198186A JPS62248656A (en) | 1986-04-23 | 1986-04-23 | Ink jet printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9198186A JPS62248656A (en) | 1986-04-23 | 1986-04-23 | Ink jet printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62248656A true JPS62248656A (en) | 1987-10-29 |
Family
ID=14041668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9198186A Pending JPS62248656A (en) | 1986-04-23 | 1986-04-23 | Ink jet printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62248656A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01115637A (en) * | 1987-10-30 | 1989-05-08 | Canon Inc | Ink jet recorder |
| JPH02141249A (en) * | 1988-11-24 | 1990-05-30 | Canon Inc | Ink-jet recording device |
| JPH03218846A (en) * | 1990-01-24 | 1991-09-26 | Canon Inc | Liquid jet recording device |
| JPH03248847A (en) * | 1990-02-28 | 1991-11-06 | Canon Inc | Device for ink-jet recording |
| EP0976568A3 (en) * | 1998-07-29 | 2000-05-10 | Seiko Epson Corporation | Printing apparatus, method of resetting it, and storage medium |
-
1986
- 1986-04-23 JP JP9198186A patent/JPS62248656A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01115637A (en) * | 1987-10-30 | 1989-05-08 | Canon Inc | Ink jet recorder |
| JPH02141249A (en) * | 1988-11-24 | 1990-05-30 | Canon Inc | Ink-jet recording device |
| JPH03218846A (en) * | 1990-01-24 | 1991-09-26 | Canon Inc | Liquid jet recording device |
| JPH03248847A (en) * | 1990-02-28 | 1991-11-06 | Canon Inc | Device for ink-jet recording |
| EP0976568A3 (en) * | 1998-07-29 | 2000-05-10 | Seiko Epson Corporation | Printing apparatus, method of resetting it, and storage medium |
| US6580520B1 (en) | 1998-07-29 | 2003-06-17 | Seiko Epson Corporation | Printing apparatus, a method of controlling the printing apparatus, a printer control program, and a storage medium for the program |
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