JPH1148503A - Ink-jet recording head and ink-jet recording apparatus - Google Patents
Ink-jet recording head and ink-jet recording apparatusInfo
- Publication number
- JPH1148503A JPH1148503A JP21073597A JP21073597A JPH1148503A JP H1148503 A JPH1148503 A JP H1148503A JP 21073597 A JP21073597 A JP 21073597A JP 21073597 A JP21073597 A JP 21073597A JP H1148503 A JPH1148503 A JP H1148503A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- jet recording
- sub
- ink jet
- color
- 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.)
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- Facsimile Heads (AREA)
- Ink Jet (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はインクジェット記録
ヘッドを主走査と副走査を交互に行うことにより画像を
記録するインクジェット記録ヘッドおよび装置、特に複
数の色のインクを用いて往動時のみの記録と往復動記録
とを選択して行うカラーインクジェット記録ヘッドおよ
び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet recording head and an apparatus for recording an image by alternately performing main scanning and sub scanning of an ink jet recording head, and in particular, recording only at the time of forward movement using a plurality of color inks. The present invention relates to a color ink jet recording head and an apparatus for performing selective recording and reciprocating motion recording.
【０００２】[0002]
【従来の技術】複数色のインクを用いて記録を行うイン
クジェット記録装置は、例えば図７に示すように、イン
クジェット記録ヘッドはインクを吐出するためのノズル
が副走査方向に複数個配置されたノズル列を各色のイン
ク毎に構成している。このインクジェット記録ヘッドで
主走査と副走査を交互に繰り返して記録媒体上に画像を
記録する。また、記録媒体上の同一位置に異なった色の
インクを重ねることで多色の画像の記録を可能にしてい
る。2. Description of the Related Art As shown in FIG. 7, for example, as shown in FIG. 7, an ink jet recording apparatus which performs recording using inks of a plurality of colors has a nozzle in which a plurality of nozzles for discharging ink are arranged in a sub-scanning direction. A row is configured for each color ink. An image is recorded on a recording medium by alternately repeating main scanning and sub-scanning with this ink jet recording head. Further, multicolor images can be recorded by overlapping different color inks on the same position on the recording medium.
【０００３】また、特公平３−７６２２６号公報におい
ては、色インクの重ね合わせによるにじみの防止と、主
走査方向での往復動記録を行った場合の色インクの重ね
合わせ順序の反転による色調差を防ぐ目的で図８に示す
ような記録装置を開示している。各色のノズル列はＮ個
のノズルを副走査方向に画素のピッチのＫ倍の間隔で配
置し、各色のノズル列の副走査方向の位置を画素のピッ
チのＬ倍づつずらして配置し、主走査１回当たり画素の
ピッチのＮ倍だけ副走査を行う。このときＫとＮとが互
いに素であり、Ｌ＝α×Ｎ（αは正の整数）となるよう
に設定することにより往復動記録を行った場合にも常に
色インクの重ね合わせ順序は一定となる。In Japanese Patent Publication No. 3-76226, there is disclosed a method for preventing bleeding due to superposition of color inks and a color tone difference by reversing the superposition order of color inks when reciprocating recording is performed in the main scanning direction. A recording device as shown in FIG. In each color nozzle row, N nozzles are arranged at intervals of K times the pixel pitch in the sub-scanning direction, and the positions of the nozzle rows of each color in the sub-scanning direction are shifted by L times the pixel pitch. Sub-scan is performed N times the pixel pitch per scan. At this time, K and N are disjoint, and by setting L = α × N (α is a positive integer), even when reciprocating printing is performed, the overlapping order of the color inks is always constant. Becomes
【０００４】[0004]
【発明が解決しようとする課題】上記のようなインクジ
ェット記録装置においては、色の重ね合わせ順序が常に
一定であるのでノズル列の配置によって決まる色の重ね
合わせ順を１つに決める必要がある。これは異なる記録
媒体を用いた場合の色の重ね合わせ順序による色調差な
どを考慮すると難易度の高い作業である。また、各色の
ノズル列の副走査方向の位置を画素のピッチのＬ＝α×
Ｎ倍づつずらして配置する必要があるのでノズル数Ｎが
増えると記録ヘッドの副走査方向の寸法が大きくなると
いう課題がある。In the above-described ink jet recording apparatus, the order of superimposing the colors is always constant, so that the order of superimposing the colors determined by the arrangement of the nozzle rows must be determined as one. This is a difficult task in consideration of a color tone difference due to the order of superimposition of colors when different recording media are used. Further, the position of the nozzle row of each color in the sub-scanning direction is represented by L = α ×
Since it is necessary to displace the nozzles by N times, when the number N of nozzles increases, the size of the recording head in the sub-scanning direction increases.
【０００５】[0005]
【課題を解決するための手段】前記課題を解決するた
め、本発明は、複数色のインクを用いて往動時のみの記
録と往復動記録とを選択して行うインクジェット記録装
置に搭載されるインクジェット記録ヘッドにおいて、該
ヘッドに各色インクを吐出するノズルが副走査方向に等
間隔に配置されたノズル列を具備し、インクの色数をＩ
とするときノズルの副走査方向の間隔が記録媒体に記録
される画素のピッチのＩ×α（αは正の整数）倍であ
り、前記ノズル列の副走査方向の位置が各色毎に異なる
ことを特徴とする。また、該ヘッドを搭載したインクジ
ェット記録装置は、一回の主走査毎に１画素以上の副走
査送りをするとともに、前記各色のインクの異なる色の
インクが同一画素に重なるように前記インクの吐出を制
御することを特徴とする。さらに該記録装置は、各色の
ノズル列のノズル数をＮとするとき、前記インクジェッ
ト記録ヘッドの主走査後の副走査の移動量を画素のピッ
チのＮ倍とし、ＮとＩ×α（αは正の整数）とが互いに
素であることを特徴とする。In order to solve the above-mentioned problems, the present invention is mounted on an ink-jet recording apparatus for selectively performing recording only during forward movement and reciprocal movement recording using inks of a plurality of colors. The ink jet recording head includes a nozzle array in which nozzles for ejecting each color ink are arranged at equal intervals in the sub-scanning direction.
The interval of the nozzles in the sub-scanning direction is I × α (α is a positive integer) times the pitch of the pixels recorded on the recording medium, and the position of the nozzle row in the sub-scanning direction is different for each color. It is characterized by. In addition, the ink jet recording apparatus equipped with the head performs the sub-scan feed of one pixel or more for each main scan, and discharges the ink such that different color inks of the respective colors overlap the same pixel. Is controlled. Further, when the number of nozzles in the nozzle row of each color is N, the printing apparatus sets the moving amount of the sub-scanning after the main scanning of the ink jet printing head to N times the pixel pitch, and N and I × α (α is (Positive integer) are mutually prime.
【０００６】[0006]
【発明の実施の形態】本発明の実施の形態を以下に詳細
に説明する。本発明の実施の形態を示す記録装置につい
て説明する。図１、図２および図３は、本発明の実施の
形態を示す記録装置の構造である。紙、フィルム等の記
録媒体１は、副走査モーター２によりピニオン歯車３と
歯車４を介して駆動される、駆動ローラー５と押さえロ
ーラー６の間を副走査モーター２の回転により、副走査
方向７に搬送される。キャリッジ８は、接続部９におい
てベルト１０と固定されている。ベルト１０は主走査モ
ーター１１と、主走査モーター１１の回転を伝える駆動
プーリー１２と駆動プーリーと連動して回転する従動プ
ーリー１３とによりキャリッジ駆動部を構成しており、
主走査モーター１１の回転により、キャリッジ８を主走
査方向１４へ移動させる。さらに、キャリッジ8は複数
色のインクに対応するインクタンク１５と、インク供給
路１６と、記録媒体１上にインク滴を吐出するノズルを
複数個持つノズル列１８を有するインクジェット記録ヘ
ッド１７とにより構成される。インクジェット記録ヘッ
ド１７には、圧電振動子の振動によりインクに圧力を発
生させてインクを吐出するもの、発熱体によりインクを
加熱して発泡させ、その膨張圧力によりインクを吐出さ
せるもの等、幾つか方式があるが、どの方式のインクジ
ェット記録ヘッドも本発明に使用することが可能であ
る。Embodiments of the present invention will be described in detail below. A recording device according to an embodiment of the present invention will be described. FIG. 1, FIG. 2 and FIG. 3 show the structure of a recording apparatus showing an embodiment of the present invention. A recording medium 1 such as paper or film is driven by a sub-scanning motor 2 via a pinion gear 3 and a gear 4. Transported to The carriage 8 is fixed to a belt 10 at a connection portion 9. The belt 10 includes a main scanning motor 11, a driving pulley 12 for transmitting the rotation of the main scanning motor 11, and a driven pulley 13 that rotates in conjunction with the driving pulley to form a carriage driving unit.
The carriage 8 is moved in the main scanning direction 14 by the rotation of the main scanning motor 11. Further, the carriage 8 includes an ink tank 15 corresponding to a plurality of color inks, an ink supply path 16, and an ink jet recording head 17 having a nozzle row 18 having a plurality of nozzles for ejecting ink droplets on the recording medium 1. Is done. Some ink jet recording heads 17 generate ink pressure by vibrating a piezoelectric vibrator to discharge ink, and others use a heating element to heat ink to foam and discharge ink by the expansion pressure. Although there is a system, any type of ink jet recording head can be used in the present invention.
【０００７】これらのインクジェット記録ヘッド１７
と、主走査モーター１１及び、副走査モーター2はＣＰ
Ｕ，ＲＡＭ，ＲＯＭ等により構成された制御手段１９に
より制御され、コンピュータ等のホスト２０から送られ
るデータに基づいて画像を出力する。この時、ホスト２
０からの信号により、往動時のみの記録と往復動記録を
選択して実行する。[0007] These ink jet recording heads 17
And the main scanning motor 11 and the sub scanning motor 2 are CP
An image is output based on data transmitted from a host 20, such as a computer, under the control of a control unit 19 composed of U, RAM, ROM and the like. At this time, host 2
The recording from only the forward movement and the reciprocating movement recording are selected and executed by the signal from 0.
【０００８】図４は本発明の第１の実施の形態のインク
ジェット記録ヘッド１７のノズル列１８の配置の一例で
ある。Ｂｋ、Ｙ、Ｍ、Ｃの４色のインクを用いたインク
ジェット記録ヘッドであり、各色のインクを吐出するノ
ズルはそれぞれＮノズルあり、その副走査方向の間隔は
画素のピッチのＩ×α倍（αは正の整数、Ｉはインクの
色数）に設定したノズル列を構成している。図４におい
てはＮ＝３、Ｉ＝４、α＝１に設定している。また、各
色のノズル列の副走査方向の位置は全て１画素ピッチづ
つずれた異なる位置に配置している。FIG. 4 shows an example of the arrangement of the nozzle rows 18 of the ink jet recording head 17 according to the first embodiment of the present invention. This is an ink jet recording head using four color inks of Bk, Y, M, and C. Each of the nozzles ejects each color ink has N nozzles, and the interval in the sub-scanning direction is I × α times the pixel pitch ( α is a positive integer and I is the number of ink colors. In FIG. 4, N = 3, I = 4, and α = 1. Further, the positions of the nozzle rows of each color in the sub-scanning direction are all located at different positions shifted by one pixel pitch.
【０００９】このようなインクジェット記録ヘッドを用
いて、主走査１回当たりの副走査の移動量を画素のピッ
チのＮ倍とし、Ｎとα×Ｉとが互いに素である様な副走
査方向の移動を主走査毎に繰り返しながら画素の記録を
行うと、図５に示すように、記録媒体上の色インクの重
ね合わせ順序は、主走査方向の１ライン毎に変るように
なる。また、色の重ね合わせ順は各色のノズル列の位置
と副走査の移動量で決まるので主走査の方向に依存せ
ず、往復動記録を行った場合においても色の重ね合わせ
順序は変わらない。Using such an ink jet recording head, the amount of sub-scanning movement per main scanning is set to N times the pixel pitch, and in the sub-scanning direction where N and α × I are mutually prime. When pixels are printed while repeating the movement for each main scan, the superposition order of the color inks on the print medium changes for each line in the main scan direction, as shown in FIG. In addition, since the order of superimposition of colors is determined by the position of the nozzle row of each color and the amount of sub-scanning movement, it does not depend on the direction of main scanning, and does not change even when reciprocating recording is performed.
【００１０】図６は本発明の第２の実施の形態のインク
ジェット記録ヘッド１７のノズル列１８の配置の一例で
ある。 Ｂｋ、Ｙ、Ｍ、Ｃの４色のインクを吐出するノ
ズルが順に副走査方向に１列に配置されている。各色毎
にノズル列を形成していると考えるとＮ＝３、Ｉ＝４、
α＝１であり、図４と同じなので、主走査１回当たりの
副走査の移動量を画素のピッチのＮ倍とすると、図５と
同じ記録状態が得られる。本実施の形態を用いれば、第
１の実施の形態と同様の効果が得られるインクジェット
記録ヘッドの主走査方向の寸法をより小さくすることが
できる。FIG. 6 shows an example of an arrangement of nozzle rows 18 of an ink jet recording head 17 according to a second embodiment of the present invention. The nozzles for ejecting the four color inks of Bk, Y, M, and C are sequentially arranged in one row in the sub-scanning direction. Assuming that a nozzle row is formed for each color, N = 3, I = 4,
Since α = 1 and the same as FIG. 4, if the moving amount of the sub-scan per one main scan is set to N times the pixel pitch, the same recording state as in FIG. 5 can be obtained. By using this embodiment, it is possible to further reduce the size in the main scanning direction of the ink jet recording head that can obtain the same effect as that of the first embodiment.
【００１１】本発明の実施の形態においてはインクの色
数はＩ＝４の場合について説明したが、任意の色数のイ
ンクジェット記録ヘッドにおいても同様の効果が得られ
るノズル列を構成することが可能である。In the embodiment of the present invention, the case where the number of colors of ink is I = 4 has been described. However, it is possible to form a nozzle array which can obtain the same effect even with an ink jet recording head having an arbitrary number of colors. It is.
【００１２】[0012]
【発明の効果】以上説明したように本発明のインクジェ
ット記録装置は、主走査方向の１ライン毎に色インクの
重ね合わせ順序が変るので、色の重ね合わせ順序による
発色差が分散され、画質が向上する。また、各色のノズ
ル列の副走査方向の位置は最低１画素ピッチづつずらせ
ばよいので、往復動記録を行った場合においても色の重
ね合わせ順序の変わらないインクジェット記録ヘッドを
小さな寸法で実現できる。As described above, in the ink jet recording apparatus of the present invention, since the superposition order of the color inks changes for each line in the main scanning direction, the color difference due to the superposition order of the colors is dispersed and the image quality is improved. improves. In addition, since the positions of the nozzle rows of each color in the sub-scanning direction may be shifted by at least one pixel pitch, an ink jet recording head in which the order of superimposition of colors does not change even when reciprocating recording is performed can be realized with a small size.
【図１】本発明の実施の形態を示す記録装置の構成図。FIG. 1 is a configuration diagram of a recording apparatus according to an embodiment of the present invention.
【図２】本発明の実施の形態を示す記録ヘッドの図。FIG. 2 is a diagram of a recording head showing an embodiment of the present invention.
【図３】本発明の実施の形態を示す記録装置のブロック
図。FIG. 3 is a block diagram of a recording apparatus showing an embodiment of the present invention.
【図４】本発明の第１の実施の形態のノズル列を示す
図。FIG. 4 is a diagram showing a nozzle row according to the first embodiment of the present invention.
【図５】本発明の実施の形態の記録状態を示す図。FIG. 5 is a diagram showing a recording state according to the embodiment of the present invention.
【図６】本発明の第２の実施の形態のノズル列を示す
図。FIG. 6 is a diagram illustrating a nozzle row according to a second embodiment of the present invention.
【図７】従来技術のノズル列を示す図。FIG. 7 is a diagram showing a conventional nozzle array.
【図８】従来技術のノズル列を示す図。FIG. 8 is a diagram showing a conventional nozzle array.
１ 記録媒体 ２ 副走査モーター ３ ピニオン歯車 ４ 歯車 ５ 駆動ローラー ６ 押さえローラー ７ 副走査方向 ８ キャリッジ ９ 接続部 １０ ベルト １１ 主走査モーター １２ 駆動プーリー １３ 従動プーリー １４ 主走査方向 １５ インクタンク １６ インク供給路 １７ インクジェット記録ヘッド １８ ノズル群 １９ 制御手段 ２０ ホスト REFERENCE SIGNS LIST 1 recording medium 2 sub-scanning motor 3 pinion gear 4 gear 5 driving roller 6 holding roller 7 sub-scanning direction 8 carriage 9 connecting portion 10 belt 11 main scanning motor 12 driving pulley 13 driven pulley 14 main scanning direction 15 ink tank 16 ink supply path 17 Inkjet recording head 18 Nozzle group 19 Control means 20 Host
Claims (3)
と往復動記録とを選択して行うインクジェット記録装置
に搭載されるインクジェット記録ヘッドにおいて、該ヘ
ッドに各色インクを吐出するノズルが副走査方向に等間
隔に配置されたノズル列を具備し、インクの色数をＩと
するときノズルの副走査方向の間隔が記録媒体に記録さ
れる画素のピッチのＩ×α（αは正の整数）倍であり、
前記ノズル列の副走査方向の位置が各色毎に異なること
を特徴とするインクジェット記録ヘッド。In an ink jet recording head mounted on an ink jet recording apparatus for selectively performing recording only during forward movement and reciprocal movement recording using inks of a plurality of colors, a nozzle for discharging each color ink to the head is provided. The nozzle array is provided at equal intervals in the sub-scanning direction, and when the number of ink colors is I, the interval between the nozzles in the sub-scanning direction is I × α (α is a positive value) of the pixel pitch recorded on the recording medium. ) Times
An ink jet recording head, wherein the position of the nozzle row in the sub-scanning direction is different for each color.
を搭載し、一回の主走査毎に１画素以上の副走査送りを
するとともに、前記各色のインクの異なる色のインクが
同一画素に重なるように前記インクの吐出を制御するこ
とを特徴とするインクジェット記録装置。2. An ink jet recording head according to claim 1, wherein one or more sub-scan feeds are performed for each main scan, and different color inks of the respective colors overlap the same pixel. An ink jet recording apparatus for controlling ejection of the ink.
き、前記インクジェット記録ヘッドの主走査後の副走査
の移動量を画素のピッチのＮ倍とし、ＮとＩ×α（αは
正の整数）とが互いに素であることを特徴とする請求項
２記載のインクジェット記録装置。3. When the number of nozzles of a nozzle row of each color is N, the amount of movement of the sub-scan after the main scan of the ink jet recording head is N times the pixel pitch, and N and I × α (α is a positive value). 3. The ink jet recording apparatus according to claim 2, wherein (integer) is mutually prime.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21073597A JPH1148503A (en) | 1997-08-05 | 1997-08-05 | Ink-jet recording head and ink-jet recording apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21073597A JPH1148503A (en) | 1997-08-05 | 1997-08-05 | Ink-jet recording head and ink-jet recording apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1148503A true JPH1148503A (en) | 1999-02-23 |
Family
ID=16594249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21073597A Pending JPH1148503A (en) | 1997-08-05 | 1997-08-05 | Ink-jet recording head and ink-jet recording apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1148503A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304183C (en) * | 2002-10-15 | 2007-03-14 | 陈万利 | Nonconsumable wood flame retardant and its preparation |
| WO2010141713A3 (en) * | 2009-06-04 | 2011-02-03 | E. I. Du Pont De Nemours And Company | Multicolor electronic devices and processes of forming the same by printing |
| WO2010141699A3 (en) * | 2009-06-04 | 2011-02-24 | E. I. Du Pont De Nemours And Company | Multicolor electronic devices and processes of forming the same by printing |
| US8459776B2 (en) | 2009-03-06 | 2013-06-11 | E I Du Pont De Nemours And Company | Multicolor electronic devices and processes of forming the same by printing |
| US8616666B2 (en) | 2007-12-10 | 2013-12-31 | E I Du Pont De Nemours And Company | Multicolor electronic devices and processes of forming the same by printing |
| JP2014046481A (en) * | 2012-08-29 | 2014-03-17 | Fujifilm Corp | Inkjet recording method, and printed matter |
| JP2014046480A (en) * | 2012-08-29 | 2014-03-17 | Fujifilm Corp | Inkjet recording method, and printed matter |
| JP2014046479A (en) * | 2012-08-29 | 2014-03-17 | Fujifilm Corp | Inkjet recording method, and printed matter |
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