JPH01237146A - Ink jet recording head - Google Patents
Ink jet recording headInfo
- Publication number
- JPH01237146A JPH01237146A JP6509288A JP6509288A JPH01237146A JP H01237146 A JPH01237146 A JP H01237146A JP 6509288 A JP6509288 A JP 6509288A JP 6509288 A JP6509288 A JP 6509288A JP H01237146 A JPH01237146 A JP H01237146A
- Authority
- JP
- Japan
- Prior art keywords
- stages
- nozzles
- nozzle
- ink
- head
- 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
- 230000002542 deteriorative effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 239000000976 ink Substances 0.000 abstract 5
- 239000000463 material Substances 0.000 abstract 1
- 239000003086 colorant Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 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
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/14—Character- or line-spacing mechanisms with means for effecting line or character spacing in either direction
- B41J19/142—Character- or line-spacing mechanisms with means for effecting line or character spacing in either direction with a reciprocating print head printing in both directions across the paper width
- B41J19/147—Colour shift prevention
-
- 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
- B41J2/21—Ink jet for multi-colour printing
- B41J2/2132—Print quality control characterised by dot disposition, e.g. for reducing white stripes or banding
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- 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、カラーインクジェット記録装置に用いられ、
マルチノズルヘッドを備えてフルカラー記録を高速に行
なうためのインクジェット記録ヘッドに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is used in a color inkjet recording device,
The present invention relates to an inkjet recording head that is equipped with a multi-nozzle head and performs full-color recording at high speed.
インクジェット記録方式は、圧電素子等の吐出エネルギ
ー発生体を吐出駆動電源として、ノズルからインク滴を
吐出ならびに飛翔させて、記録紙、フィルム、布等の被
記録体に付着吸収させ、画像等の記録を行なうものであ
り、騒音の発生が少なく、特別な定着処理等を要するこ
となくフルカラー記録が行なえる特徴がある。The inkjet recording method uses an ejection energy generating body such as a piezoelectric element as an ejection drive power source to eject and fly ink droplets from a nozzle, and the ink droplets are attached to and absorbed by a recording medium such as recording paper, film, cloth, etc. to record images. It is characterized by generating little noise and being able to perform full-color recording without requiring any special fixing treatment.
フルカラー記録を行なうには、インク色数のノズルの各
々に、イエロー、マゼンタ、シアンさらにはブラックを
割当て、記録情報に応じて各色の吐出量を制御しながら
インク滴を吐出させ、被記録体の１画素に各々のインク
を混合吸収させ、減法混色によりカラー画像を得ている
。To perform full-color recording, yellow, magenta, cyan, and even black are assigned to each of the ink color nozzles, and ink droplets are ejected while controlling the ejection amount of each color according to the recording information. Each pixel mixes and absorbs each ink, and a color image is obtained by subtractive color mixing.
インクジェット記録方式において、記録の高速化を図る
ためには、各色分の１セツトのノズル体を複数個備えた
マルチノズルヘッドが用いられる。In the inkjet recording system, in order to speed up recording, a multi-nozzle head is used that includes a plurality of nozzle bodies, one set for each color.
第７図は従来のマルチノズルによるインクジェット記録
ヘッドのノズル部の模式的正面図である。FIG. 7 is a schematic front view of a nozzle section of a conventional multi-nozzle inkjet recording head.
第７図に示すように、ａ、ｂ、ｃの３段（３行）から成
り、各行に４＋１ｌｉＩが配設された１２個のノズルを
備え、各段毎に同一のインク色配列（Ｙ：イエロー、Ｍ
：マゼンタ、Ｃニジアン、ＢＫニブラック）にされてい
る。As shown in FIG. 7, it consists of three stages (three rows) of a, b, and c, each row has 12 nozzles with 4+1liI arranged, and each stage has the same ink color arrangement (Y: Yellow, M
: Magenta, C Nidian, BK Niblack).
記録を行なうに際しては、各列の同一色を同時に３段の
ノズルより記録色に応じて吐出させ、これを各色につい
て順次実施する。すなわち、第８図に示すように、往路
ではＢＫ−Ｃ−Ｍ−Ｙの順にインク滴を吐出させ、復路
ではＹ −Ｍ−Ｃ−ＢＫの順にインク滴を吐出させるこ
とにより、３行分の記録を同時に行なうことができる。When recording, the same color in each column is simultaneously ejected from three stages of nozzles according to the recording color, and this is performed sequentially for each color. That is, as shown in FIG. 8, ink droplets are ejected in the order of BK-C-M-Y on the outward path, and ink droplets are ejected in the order of Y-M-C-BK on the return path, thereby printing for three lines. Recording can be done simultaneously.
しかし、このような従来のインクジェット記録ヘッドに
あっては、マルチノズルを用いて記録すると、列方向の
インク吐出インク色の３段が同一列になるため、複数ラ
イン毎に再現色が異なり、画質の劣化を招く不具合があ
る。However, with such conventional inkjet recording heads, when recording using multi-nozzles, the three rows of ink colors ejected in the column direction are in the same column, so the reproduced colors differ for each line, resulting in poor image quality. There is a problem that causes deterioration of the
なお、往路のみの片側印字とし、インクの色の正なる順
序を常に一定になるようにすることにより、画質の向上
が図れるが、記録速度が遅くなるという欠点がある。Note that image quality can be improved by printing on one side only in the forward pass and by keeping the correct order of ink colors always constant, but this has the drawback of slowing down the recording speed.
本発明の目的は、このような従来技術の問題を解決でき
、インクの重なる順序を１ライン毎にすることができ、
画質を劣化させることなく高速記録を行なうことができ
る。It is an object of the present invention to solve the problems of the prior art, to change the order in which ink overlaps line by line, and to
High-speed recording can be performed without deteriorating image quality.
本発明は、インク滴を飛翔させるノズルの複数個を一体
化したマルチノズルヘッドと被記録体とを主走査方向に
相対移動させて記録を行なうカラーインクジェット記録
装置において、前記ノズルを副走査方向にｍ段、その各
段の主走査方向にｎ個を配すると共に、前記ｍ段の各ノ
ズルのインク色配列を隣接する段に対し異ならせること
により、上記目的を達成するようにしたものである。The present invention provides a color inkjet recording device that performs recording by relatively moving a recording medium and a multi-nozzle head that integrates a plurality of nozzles that eject ink droplets in the main scanning direction, in which the nozzles are moved in the secondary scanning direction. The above object is achieved by arranging m stages and n nozzles in the main scanning direction of each stage, and making the ink color arrangement of each nozzle of the m stages different from that of the adjacent stage. .
上記のように構成することによって、主走査方向のイン
ク色配列を隣接する行に対して異ならせることにより、
記録した行のインク色配列すなわちインクの重なる順序
を前後のラインに対して異ならせることができるため、
画質を劣化させることなく記録速度の高速化を図ること
ができる。With the above configuration, by making the ink color arrangement in the main scanning direction different for adjacent rows,
The ink color arrangement of the recorded line, that is, the order in which the ink overlaps, can be made different for the previous and subsequent lines.
The recording speed can be increased without deteriorating the image quality.
以下、第１図〜第６図を参照して本発明を具体的に説明
する。The present invention will be specifically described below with reference to FIGS. 1 to 6.
第１図は本発明によるインクジェット記録ヘッドの模式
的平面図、第２図は第１図のヘッドのノズルの１つに対
応するヘッド部の構成を示す模式的側面図である。FIG. 1 is a schematic plan view of an inkjet recording head according to the present invention, and FIG. 2 is a schematic side view showing the structure of a head portion corresponding to one of the nozzles of the head of FIG.
第１図に示すように、ヘッド１ｏはＡ、Ｂ、Ｃの３段か
ら成り、各段は４個のノズル１１を備えている。各段の
ノズルに対するインク色配列は奇数段と偶数段とで異な
り、奇数段はＹ、Ｍ、Ｃ１ＢＫ、偶数段はＢＫ、Ｃ，Ｍ
、Ｙにされている。As shown in FIG. 1, the head 1o consists of three stages A, B, and C, and each stage is equipped with four nozzles 11. The ink color arrangement for the nozzles in each stage is different between odd and even stages, with the odd stages being Y, M, and C1BK, and the even stages being BK, C, and M.
, is set to Y.
ノズル１１の夫々に対応して設けられるヘッド機構は、
第２図のように構成されており、インクタンク（不図示
）に連通される供給チューブ１がＩｊ＞Ｎされたサブタ
ンク２にはノズル３が取付けられている。ノズル３には
吐出エネルギー発生体としての圧電素子４が装着されて
いる。このような構成のヘッド機構、ノズル数分が第１
図のように行と列に規則的に配列され、集合一体止され
ている。The head mechanism provided corresponding to each nozzle 11 is
It is constructed as shown in FIG. 2, and a nozzle 3 is attached to a sub-tank 2 in which a supply tube 1 communicating with an ink tank (not shown) satisfies Ij>N. A piezoelectric element 4 as a discharge energy generator is attached to the nozzle 3. In a head mechanism with such a configuration, the number of nozzles is the first
As shown in the figure, they are regularly arranged in rows and columns and fixed together.
第２図に示すヘッド機構は、サブタンク２及びノズル３
にインクが満たされた状態のもとで、圧電素子４にパル
ス電圧が印加されると、ノズル３内に瞬時的に圧力が生
じ、ノズル３よりインク滴が吐出される。吐出されたイ
ンク滴５は、吐出圧力が高いために飛翔し、不図示の被
記録体に付着し、吸収される。圧電素子４には、記録デ
ータに応じてインク色毎に駆動電圧が印加される。駆動
電圧が応じてインク吐出量が制御される。The head mechanism shown in FIG. 2 includes a sub tank 2 and a nozzle 3.
When a pulse voltage is applied to the piezoelectric element 4 in a state where the nozzle 3 is filled with ink, pressure is instantaneously generated within the nozzle 3, and an ink droplet is ejected from the nozzle 3. The ejected ink droplets 5 fly due to the high ejection pressure, adhere to a recording medium (not shown), and are absorbed. A driving voltage is applied to the piezoelectric element 4 for each ink color according to print data. The ink ejection amount is controlled according to the drive voltage.
次に、第１図の構成によるインクジェット記録ヘッドを
用いた記録方法について第３図を参照して説明する。本
実施例においては、ヘッドｌＯと被記録体とを相対移動
させるに際し、ヘッド１０を移動させ、被記録体は副走
査方向にのみ移動させている。Next, a recording method using the inkjet recording head having the configuration shown in FIG. 1 will be described with reference to FIG. 3. In this embodiment, when the head 10 and the object to be recorded are moved relative to each other, the head 10 is moved and the object to be recorded is moved only in the sub-scanning direction.
第３図の矢印方向（実線、破線、鎖線）へヘッド１０が
移動することにより、３段分のノズルによる往路のイン
ク吐出は、次の順序で重ねられる。By moving the head 10 in the arrow direction (solid line, broken line, chain line) in FIG. 3, the forward ink ejections by the three stages of nozzles are overlapped in the following order.
次の４〜６行目、すなわち復路においては、第２表の順
序でインク吐出が行われる。往路の場合と同様に１行お
きに
色の重なる順序を変えることができる。In the next 4th to 6th lines, that is, on the return path, ink is ejected in the order shown in Table 2. As in the case of the outward journey, the order in which colors overlap can be changed every other row.
実施例１゜
まず、第１図に示すように３段Ｘ（４１［１ｉｌ／段）
の１２個のノズルを備えたマルチヘッドを用いイエロー
ノズルの圧電素子に５０Ｖを印加し、シアンノズルの圧
電素子に３０Ｖを印加し、ベタ印字を行なった。その結
果、第３図のように１ライン毎に色の重なる順が交互に
現われた。これにより画質に悪影響を与えることなく、
印字速度を１段ノズルヘッド時の２．５倍にすることが
できた。Example 1 First, as shown in Fig. 1, 3 stages X (41 [1il/stage)
Using a multi-head equipped with 12 nozzles, 50 V was applied to the piezoelectric element of the yellow nozzle, and 30 V was applied to the piezoelectric element of the cyan nozzle to perform solid printing. As a result, as shown in FIG. 3, the overlapping order of colors appeared alternately on each line. This does not adversely affect image quality,
The printing speed could be increased to 2.5 times that of a single-stage nozzle head.
実施例２゜
次に、第４図に示すように、５段で各段に５１１１ｉｌ
のノズルを配した２５（１ｍのノズルを備えたマルチヘ
ッド用い、第３表に示す３通（イ〜ハ）の３通りの組合
せでヘタ印字を行なった。Example 2 Next, as shown in FIG.
Using a multi-head equipped with a 25 (1 m) nozzle, uneven printing was performed using three combinations of three prints (A to C) shown in Table 3.
この結果、画質に影響を与えることなく、印字速度を４
．５倍にできることが確認された。As a result, the print speed can be increased by 440 degrees without affecting image quality.
．． It was confirmed that it can be increased five times.
実施例３゜
さらに、第５図に示すように、垂直方向（副走査方向）
に偶数段のノズルを持ち、各段に４個の合計１６個のノ
ズルを備えたマルチノズルヘッドを用い、奇数段をＹ、
Ｍ、Ｃ，ＢＫの配列とし、偶数段をＢＫ、Ｃ，Ｍ、Ｙの
配列にし、第６図のように記録を行なった。この場合、
４ライン目と５ライン目、すなわちＤ段のノズル列の往
路と、Ａ段のノズル列の復路とのインクの重なり方が等
しくなるものの、前記各実施例に近い効果が認められた
。Embodiment 3 Further, as shown in FIG. 5, the vertical direction (sub-scanning direction)
A multi-nozzle head with an even number of nozzles in each stage and four nozzles in each stage for a total of 16 nozzles is used, and the odd stages are Y,
The array was M, C, BK, and the even numbered rows were BK, C, M, Y, and recording was performed as shown in FIG. in this case,
Although the ink overlapped in the fourth and fifth lines, that is, the forward path of the D-stage nozzle row and the return path of the A-stage nozzle row, the effect was similar to that of each of the examples described above.
比較例
第７図のノズル配列およびインク色配列により、実施例
１と同様に記録操作を行ない、インク滴の吐出を、Ｙ
−Ｍ −Ｃ−Ｂ Ｋの順で印字を行なった。Comparative Example Using the nozzle arrangement and ink color arrangement shown in FIG.
Printing was performed in the order of -M -C-B-K.
その結果、３ライン目毎に色目が変わり、スジの目立つ
画像が生じた。このことから、本発明によるように、隣
接する段のインク色配列と異ならせることにより、画質
に与える影響を排除できることがわかる。As a result, the color changed every third line, resulting in an image with noticeable streaks. This shows that, according to the present invention, by making the ink color arrangement different from that of adjacent stages, the influence on image quality can be eliminated.
なお、上記実施例においては、吐出エネルギー発生体と
して圧電素子によるピエゾ効果を用いる方式のヘッド機
構としたが、発熱素子を用いるバブルジェット方式等を
保用できることは言うまでもない。In the above embodiment, the head mechanism uses a piezoelectric effect using a piezoelectric element as the ejection energy generating body, but it goes without saying that a bubble jet system using a heating element or the like can also be used.
以上より明らかな如く、本発明によれば副走査方向にｍ
段、その各段の主走査方向にｎ１１Ｍを配すると共に、
前記ｍ段の各ノズルのインク色配列を隣接する段に対し
異ならせるようにしたので、インクの重なる順序を１ラ
イン毎にするとこができ、画質を劣化させること無く記
録速度の高速化が可能になる。As is clear from the above, according to the present invention, m in the sub-scanning direction is
In addition to arranging n11M in the main scanning direction of each stage,
Since the ink color arrangement of each nozzle of the m stages is made different from that of the adjacent stage, the order in which ink is overlapped can be changed for each line, and the recording speed can be increased without deteriorating the image quality. become.
第１図は本発明によるインクジェット記録ヘッドの模式
的正面図、第２図は第１図のヘッドを構成する１ノズル
当りのヘッド機構の模式的側面図、第３図は第１図のヘ
ッドにより記録方法を説明する説明図、第４図は本発明
の実施例２に対応するヘッドの模式的正面図、第５図は
本発明の実施例３に対応するヘッドの模式的正面図、第
６図は第５図のヘッドによる記録方法を説明する説明図
、第７図は従来のマルチノズルによるインクジェット記
録、７ドの模式的正面図、第８図は第７図のヘッドによ
る記録方法を説明する説明図である。
２ − サブタンク、３ − ノズル、４
圧電素子、ＩＯへ、ド、
１１ ノズル。
代理人 弁理士 大 音 康 穀
第１図
、 Ｃ
第４図 第５図
第６図
第７図
・ ＡFIG. 1 is a schematic front view of an inkjet recording head according to the present invention, FIG. 2 is a schematic side view of a head mechanism per nozzle constituting the head of FIG. 1, and FIG. 4 is a schematic front view of a head corresponding to Example 2 of the present invention, FIG. 5 is a schematic front view of a head corresponding to Example 3 of the present invention, and FIG. The figure is an explanatory diagram explaining the recording method using the head shown in Figure 5, Figure 7 is a schematic front view of conventional multi-nozzle inkjet recording and 7D, and Figure 8 is an illustration explaining the recording method using the head shown in Figure 7. FIG. 2 - sub tank, 3 - nozzle, 4
Piezoelectric element, to IO, de, 11 nozzle. Agent Patent Attorney Yasushi Oto Koku Figure 1, C Figure 4 Figure 5 Figure 6 Figure 7 A
Claims (1)
チノズルヘッドと被記録体とを主走査方向に相対移動さ
せるカラーインクジェット記録装置において、前記ノズ
ルを副走査方向にｍ段、その各段の主走査方向にｎ個を
配すると共に、前記ｍ段の各ノズルのインク色配列を隣
接する段に対し異ならせることを特徴とするインクジェ
ット記録ヘッド。In a color inkjet recording device in which a multi-nozzle head that integrates a plurality of nozzles that eject ink droplets and a recording medium are moved relative to each other in the main scanning direction, the nozzles are arranged in m stages in the sub-scanning direction, and the main An inkjet recording head characterized in that n nozzles are arranged in the scanning direction, and the ink color arrangement of each of the m stages is made different from that of an adjacent stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6509288A JPH01237146A (en) | 1988-03-18 | 1988-03-18 | Ink jet recording head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6509288A JPH01237146A (en) | 1988-03-18 | 1988-03-18 | Ink jet recording head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01237146A true JPH01237146A (en) | 1989-09-21 |
Family
ID=13276936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6509288A Pending JPH01237146A (en) | 1988-03-18 | 1988-03-18 | Ink jet recording head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01237146A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994014616A1 (en) * | 1992-12-23 | 1994-07-07 | Postprint Retail Systems Limited | Method and apparatus for ink jet printing |
| US5444467A (en) * | 1993-05-10 | 1995-08-22 | Compaq Computer Corporation | Differential drive system for an ink jet printhead |
-
1988
- 1988-03-18 JP JP6509288A patent/JPH01237146A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994014616A1 (en) * | 1992-12-23 | 1994-07-07 | Postprint Retail Systems Limited | Method and apparatus for ink jet printing |
| US5444467A (en) * | 1993-05-10 | 1995-08-22 | Compaq Computer Corporation | Differential drive system for an ink jet printhead |
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