JPH0516355A - Ink jet print head and electronic apparatus provided therewith - Google Patents
Ink jet print head and electronic apparatus provided therewithInfo
- Publication number
- JPH0516355A JPH0516355A JP3169538A JP16953891A JPH0516355A JP H0516355 A JPH0516355 A JP H0516355A JP 3169538 A JP3169538 A JP 3169538A JP 16953891 A JP16953891 A JP 16953891A JP H0516355 A JPH0516355 A JP H0516355A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- print head
- electrostrictive element
- long grooves
- long
- 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
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
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/10—Finger type piezoelectric elements
Landscapes
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電歪素子の変位による
インク容積の変化を利用してインクを吐出させる新規な
インクジェットプリントヘッド、並びにそれを備える、
プリンタ、ワープロ、ファクシミリ、プロッタ等の電子
機器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel ink jet print head for ejecting ink by utilizing a change in ink volume due to displacement of an electrostrictive element, and a new ink jet print head provided therewith
The present invention relates to electronic devices such as printers, word processors, facsimiles, and plotters.
【０００２】[0002]
【従来の技術】インクジェットプリントヘッドの一つ
に、電歪素子を使用したものがある。このプリントヘッ
ドは、一般には共通インク路から分岐する個別インク路
の一部に電歪素子を貼り付け、電歪素子に電界を加えて
電歪素子を変位させて、個別インク路のインク容積を変
化させることにより、個別インク路のインクを個別イン
ク路の先端口から押し出すものである。又、ヘッド自体
をその走査方向に対して傾斜させて、印字ドットを高密
度化、高品質化することも行われている。2. Description of the Related Art One of ink jet print heads uses an electrostrictive element. In this print head, an electrostrictive element is generally attached to a part of an individual ink path branched from a common ink path, an electric field is applied to the electrostrictive element to displace the electrostrictive element, and the ink volume of the individual ink path is reduced. By changing the ink, the ink in the individual ink passage is pushed out from the tip end port of the individual ink passage. Further, the head itself is tilted with respect to the scanning direction to increase the density and quality of print dots.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記の
ようなプリントヘッドを含めて一般のインクジェットプ
リントヘッドに採用する印字機構では、これまで以上に
印字ドットを高密度化すると共に印字を高品質化するの
は構造的に至難である。例えば、カイザー方式では、こ
れ以上印字密度を高めることは難しく、バブルジェット
方式では、熱によるバブルを利用しているため、バブル
の発生条件や焦げ付きを考慮するとインクの選択自由度
が低く、印字品質に限界がある。However, in the printing mechanism adopted in the general ink jet print head including the print head as described above, the density of printing dots and the quality of printing are improved more than ever. Is structurally difficult. For example, in the Kaiser method, it is difficult to increase the printing density any more, and in the bubble jet method, bubbles due to heat are used, so the degree of freedom in ink selection is low when the bubble generation conditions and charring are taken into consideration, and printing quality is reduced. Is limited.
【０００４】従って、本発明の目的は、印字の高密度化
且つ高品質化を実現する低廉なインクジェットプリント
ヘッド、並びにこのプリントヘッドを備える電子機器を
提供することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an inexpensive ink jet print head which realizes high density and high quality printing, and an electronic device equipped with this print head.
【０００５】[0005]
【課題を解決するための手段】前記目的を達成するため
に、本発明のインクジェットプリントヘッドは、電歪素
子体に長尺溝を一定間隔を置いてアレイ状に形成し、各
長尺溝内に溝の壁に沿って延びる電極を設け、隣接する
２つの長尺溝ずつで１つの個別インク路を構成し、長尺
溝を形成した電歪素子体の表面に、個別インク路（２つ
の長尺溝）に連通するノズルを有するノズルプレートを
取付けたことを特徴とする。In order to achieve the above-mentioned object, the ink jet print head of the present invention has long grooves formed in an electrostrictive element body at regular intervals in an array shape, and each long groove is formed in each of the long grooves. An electrode extending along the wall of the groove is provided, two adjacent long grooves form one individual ink path, and the individual ink paths (two individual long ink grooves are formed on the surface of the electrostrictive element body in which the long groove is formed). A nozzle plate having a nozzle communicating with the long groove is attached.
【０００６】本発明のプリントヘッドは、アレイ状に配
列した長尺溝のうち、隣接する２つの長尺溝ずつで構成
される個別インク路において、個別インク路に係る電歪
素子体の部分をアレイ方向及びアレイ方向と長尺溝の延
在方向とに垂直な方向に変位させて、２つの長尺溝のイ
ンク容積をそれぞれ変化させ、個別インク路（２つの長
尺溝）のインクを押し出す新しい印字機構を取り入れた
ものである。この印字機構について詳述すると、個別イ
ンク路に係る電歪素子体の部分は、例えばアレイ方向に
分極しており、この分極状態で、１つの個別インク路を
構成する２つの長尺溝内にそれぞれ設けた電極に適当な
極性の電圧を印加すると、分極の正負電荷と電圧の正負
極性に応じて、電歪素子体の当該部分がアレイ方向と前
記垂直な方向に変位し、２つの長尺溝のインク容積が変
化する。In the print head of the present invention, among the long grooves arranged in an array, in the individual ink paths each formed by two adjacent long grooves, a portion of the electrostrictive element body related to the individual ink path is formed. By displacing in the array direction and in a direction perpendicular to the array direction and the extending direction of the long grooves, the ink volumes of the two long grooves are changed, and the ink in the individual ink paths (two long grooves) is pushed out. It incorporates a new printing mechanism. The printing mechanism will be described in detail. The portion of the electrostrictive element body related to the individual ink path is polarized in, for example, the array direction, and in this polarized state, the electrostrictive element body is formed in two elongated grooves forming one individual ink path. When a voltage having an appropriate polarity is applied to each of the electrodes provided, the corresponding portion of the electrostrictive element body is displaced in the array direction and the direction perpendicular to the positive and negative polarities of the polarization and the positive and negative polarities of the voltage, so that two long strips are formed. The ink volume in the groove changes.
【０００７】即ち、例えば１つの個別インク路を構成す
る２つの長尺溝間に形成される電歪素子体の部分（以
下、この部分を単に隔壁と称する）において、一方の長
尺溝側を正電荷に、他方の長尺溝側を負電荷に分極して
おき、この分極状態で、一方の長尺溝内に設けた電極に
負の電圧を、他方の長尺溝内に設けた電極に正の電圧を
印加すると、隔壁がアレイ方向に伸張すると共に、アレ
イ方向と長尺溝の延在方向に垂直な方向に縮小する。こ
の隔壁の変形により、結果的にその両隣に在る長尺溝の
インク容積が減少し、各長尺溝内のインクが押されて、
電歪素子体上に取付けたノズルプレートの対応ノズルか
らインクが噴出される。このように、本発明のプリント
ヘッドは、個別インク路に係る電歪素子体の部分を変位
（伸縮）させて、２つの長尺溝のインク容積を変化させ
ることにより、個別インク路（２つの長尺溝）のインク
を押し出すという作用を有する。That is, for example, in a portion of an electrostrictive element body (hereinafter, this portion is simply referred to as a partition wall) formed between two elongated grooves forming one individual ink path, one elongated groove side is formed. The other long groove side is polarized to a positive charge with a negative charge, and in this polarization state, a negative voltage is applied to the electrode provided in one long groove and an electrode provided in the other long groove. When a positive voltage is applied to the partition walls, the partition walls expand in the array direction and contract in the direction perpendicular to the array direction and the extending direction of the long groove. As a result of the deformation of the partition walls, the ink volume of the long grooves existing on both sides of the partition walls is reduced, and the ink in each long groove is pushed,
Ink is ejected from the corresponding nozzles of the nozzle plate mounted on the electrostrictive element body. As described above, the print head of the present invention displaces (expands and contracts) the portion of the electrostrictive element body related to the individual ink passages to change the ink volumes of the two long grooves, so that the individual ink passages (two It has the function of pushing out the ink in the long groove).
【０００８】なお、本発明のプリントヘッドで、電歪素
子体としては、既知のものを使用すればよく、例えばＰ
ＺＴからなるものを使用する。電歪素子体は任意の方向
（例えばアレイ方向）に分極しているものであるが、こ
の分極化は電歪素子体の作製工程で行ってもよいし、当
初から分極化した電歪素子体を用いても構わない。In the print head of the present invention, a known electrostrictive element body may be used, for example, P
The one made of ZT is used. The electrostrictive element body is polarized in an arbitrary direction (for example, the array direction), but this polarization may be performed in the manufacturing process of the electrostrictive element body, or the electrostrictive element body that is polarized from the beginning may be used. May be used.
【０００９】[0009]
【実施例】以下、本発明のインクジェットプリントヘッ
ド、及びこれを備える電子機器を実施例に基づいて説明
する。図１はプリンタ、ワープロ等の電子機器に搭載す
るプリントヘッドの一実施例の分解斜視図を示す。プリ
ントヘッド以外の電子機器の構造については通常と全く
相違なく、ここではプリントヘッドを中心に述べる。図
１に示すプリントヘッドは、電歪素子体１と、電歪素子
体１の表面に取付けたノズルプレート２と、電歪素子体
１の一方の側端面に付設した蓋３とを備える。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The ink jet print head of the present invention and electronic equipment having the same will be described below based on embodiments. FIG. 1 is an exploded perspective view of an embodiment of a print head mounted on an electronic device such as a printer or word processor. The structure of the electronic device other than the print head is not different from usual, and the print head will be mainly described here. The print head shown in FIG. 1 includes an electrostrictive element body 1, a nozzle plate 2 attached to the surface of the electrostrictive element body 1, and a lid 3 attached to one side end surface of the electrostrictive element body 1.
【００１０】図１及びその要部断面を示す図２におい
て、電歪素子体１には、ダイシング等の加工によって複
数（この実施例では７つ）の長尺溝１１が一定間隔を置
いてアレイ状に形成されている。この長尺溝１１は、電
歪素子体１の一方側（下側）付近から他方側（上側）ま
で電歪素子体１を縦断し、他方側の側端面で開口する
（図１参照）。この長尺溝１１によって、長尺溝間には
複数（この実施例では６つ）の長尺隔壁１２が形成さ
れ、長尺溝１１と隔壁１２は平面及び断面とも矩形を呈
する。In FIG. 1 and FIG. 2 showing the cross section of the main part thereof, the electrostrictive element body 1 is provided with an array of a plurality of (seven in this embodiment) long grooves 11 arranged at regular intervals by processing such as dicing. It is formed into a shape. The elongated groove 11 longitudinally cuts the electrostrictive element body 1 from the vicinity of one side (lower side) of the electrostrictive element body 1 to the other side (upper side) and opens at the side end surface of the other side (see FIG. 1). A plurality of (six in this embodiment) long partition walls 12 are formed between the long grooves 11 by the long grooves 11, and the long grooves 11 and the partition walls 12 have a rectangular plane and cross section.
【００１１】各長尺溝１１内には、溝の両側壁及び底壁
に沿って延びる電極１３が設けられ、電極１３は長尺溝
１１の開口しない一端からほぼ中央付近まで延在する。
図２から分かるように、隣接する２つの長尺溝１１、１
１ずつで１つの個別インク路１５を構成し、１つの個別
インク路１５を構成する２つの長尺溝１１、１１間の隔
壁１２は、個別インク路１５間の隔壁１２’よりも狭幅
である。但し、図１に示す電歪素子体１には便宜上、両
隔壁１２、１２’の幅の相違は表しておらず、又、長尺
溝１１の数が奇数であるため、電歪素子体１のどちらか
一方の端に位置する１つの長尺溝１１だけは、隣接の長
尺溝と個別インク路を構成しない所謂ダミーである。２
つの長尺溝１１、１１間（個別インク路１５）の各隔壁
１２は、図中の矢印方向（アレイ方向）に分極してい
る。Each long groove 11 is provided with an electrode 13 extending along both side walls and a bottom wall of the groove, and the electrode 13 extends from one end of the long groove 11 which is not opened to almost the center thereof.
As can be seen from FIG. 2, two adjacent long grooves 11, 1 are provided.
The individual ink passages 15 are formed one by one, and the partition walls 12 between the two elongated grooves 11 and 11 forming one individual ink passage 15 are narrower than the partition walls 12 ′ between the individual ink passages 15. is there. However, for the sake of convenience, the electrostrictive element body 1 shown in FIG. 1 does not show a difference in width between the partition walls 12 and 12 ′, and since the number of the long grooves 11 is an odd number, the electrostrictive element body 1 is not shown. Only one long groove 11 located at one of the ends is a so-called dummy that does not form an individual ink path with the adjacent long groove. Two
Each partition 12 between the two elongated grooves 11, 11 (individual ink path 15) is polarized in the arrow direction (array direction) in the figure.
【００１２】長尺溝１１を形成した電歪素子体１の表面
に取付けたノズルプレート２は、個別インク路１５に対
応する数（３つ）のノズル２１を有する。図２で、各ノ
ズル２１は、円錐状であり、２つの長尺溝１１、１１に
連通する。又、ノズルプレート２は、図１に一点鎖線で
示すように、電歪素子体１の上側部分に重合しており、
電極１３を設けた長尺溝１１の一部はノズルプレート２
で覆われていない。しかし、この部分は、適当な保持板
（図示せず）等を取付けて、インクが漏出しないように
してある。The nozzle plate 2 attached to the surface of the electrostrictive element body 1 in which the elongated groove 11 is formed has the number (three) of nozzles 21 corresponding to the individual ink passages 15. In FIG. 2, each nozzle 21 has a conical shape and communicates with the two elongated grooves 11, 11. Further, the nozzle plate 2 is superposed on the upper portion of the electrostrictive element body 1 as shown by the chain line in FIG.
Part of the long groove 11 provided with the electrode 13 is the nozzle plate 2
Not covered with. However, an appropriate holding plate (not shown) or the like is attached to this portion to prevent ink from leaking.
【００１３】蓋３は、電歪素子体１の上側端面に開口す
る全ての長尺溝１１を閉塞し、開口からインクが漏れな
いようにしてある。又、各長尺溝１１は電歪素子体１の
適所に設けたインク供給路（図示せず）と電歪素子体１
の内部で連通する。従ってインクは、インク供給路を経
て、各長尺溝１１に流れ、２つの長尺溝１１、１１毎に
対応するノズル２１から噴出される。The lid 3 closes all the long grooves 11 which are opened in the upper end surface of the electrostrictive element body 1 so that ink does not leak from the openings. In addition, each long groove 11 has an ink supply path (not shown) provided at an appropriate position of the electrostrictive element body 1 and the electrostrictive element body 1.
Communicate inside. Therefore, the ink flows into each long groove 11 via the ink supply path and is ejected from the nozzle 21 corresponding to each of the two long grooves 11.
【００１４】かかるプリントヘッドは、図１から明白な
ように、ヘッドの奥行き寸法よりも縦寸法が大きい所謂
縦長を呈するものである。因みに、主要部の寸法例を挙
げると、個別インク路１５間の隔壁１２’の幅が５０μ
ｍ、長尺溝１１の幅が３３μｍ、長尺溝１１の縦寸法
（長さ）が１００００μｍ、長尺溝１１の深さが５００
μｍである。As is apparent from FIG. 1, the print head has a so-called vertical length whose vertical dimension is larger than the depth dimension of the head. Incidentally, to give an example of the size of the main part, the width of the partition 12 'between the individual ink passages 15 is 50μ.
m, the width of the long groove 11 is 33 μm, the vertical dimension (length) of the long groove 11 is 10,000 μm, and the depth of the long groove 11 is 500.
μm.
【００１５】次に、このように構成したプリントヘッド
の作用について述べる。要部の拡大断面図を示す図３に
おいて、図２の通り個別インク路１５（２つの長尺溝１
１、１１間）の隔壁１２がアレイ方向（右向き）に分極
している状態で、例えば個別インク路１５ａを構成する
長尺溝１１ａの電極１３ａに正極性の電圧を、長尺溝１
１ｂの電極１３ｂに負極性の電圧をそれぞれ印加する。
この極性の電圧印加により、電歪素子体１の２つの長尺
溝１１ａ、１１ｂ間の隔壁１２ａは、長尺溝１１ｂ側に
おいては分極の正電荷と電極１３ｂの電圧の負極性との
関係から、長尺溝１１ａ側においては分極の負電荷と電
極１３ａの電圧の正極性との関係から、アレイ方向に伸
張すると同時に、アレイ方向と長尺溝の延在方向に垂直
な方向（図中の上下方向）に縮小する。この結果、図示
の如く隔壁１２ａと、これの変位に連れて引っ張られた
ノズルプレート２の一部分によって、長尺溝１１ａ、１
１ｂのインク容積が実質上それぞれ減少するため、この
長尺溝１１ａ、１１ｂのインクが押され、それぞれ押し
出された分量のインクが合流されて、ノズルプレート２
の対応ノズル２１ａから噴出される。Next, the operation of the print head thus constructed will be described. In FIG. 3 showing an enlarged cross-sectional view of a main part, as shown in FIG. 2, the individual ink passages 15 (two long grooves 1
While the partition walls 12 (between 1 and 11) are polarized in the array direction (to the right), for example, a positive voltage is applied to the electrode 13a of the long groove 11a forming the individual ink passage 15a, and the long groove 1
A negative voltage is applied to the electrode 13b of 1b.
By applying the voltage of this polarity, the partition wall 12a between the two elongated grooves 11a and 11b of the electrostrictive element body 1 has a relationship between the positive charge of polarization and the negative polarity of the voltage of the electrode 13b on the elongated groove 11b side. On the side of the elongated groove 11a, due to the relationship between the negative charge of polarization and the positive polarity of the voltage of the electrode 13a, the elongated direction extends in the array direction, and at the same time, the direction perpendicular to the array direction and the extending direction of the elongated groove (in the figure, Reduce vertically). As a result, as shown in the drawing, the long grooves 11a, 1a are formed by the partition wall 12a and a part of the nozzle plate 2 pulled by the displacement of the partition wall 12a.
Since the ink volume of 1b is substantially reduced, the inks of the long grooves 11a and 11b are pushed, the pushed-out amounts of the inks are merged, and the nozzle plate 2
Is ejected from the corresponding nozzle 21a.
【００１６】インク噴出後に、印加電圧を遮断するか、
若しくは印加電圧の極性を反転すると、電圧遮断の場合
には、隔壁１２ａが元の状態に戻る。電圧極性反転の場
合には、隔壁１２ａには上記の作用とは逆の作用が生ず
る。即ち、隔壁１２ａは、長尺溝１１ｂ側における分極
の正電荷と電極１３ｂの電圧の正極性とにより、及び長
尺溝１１ａ側における分極の負電荷と電極１３ａの電圧
の負極性とにより、アレイ方向に縮むと共に前記垂直な
方向に伸びる。いずれの場合も、隔壁１２ａが元の状態
に向かって復帰し、長尺溝１１ａ、１１ｂのインク容積
が元通りになる。After the ink is ejected, the applied voltage is cut off, or
Alternatively, when the polarity of the applied voltage is reversed, the partition 12a returns to the original state in the case of voltage cutoff. In the case of the voltage polarity reversal, the partition wall 12a has an action opposite to the above action. That is, the partition walls 12a are arrayed by the positive charge of polarization on the long groove 11b side and the positive polarity of the voltage of the electrode 13b, and by the negative charge of polarization on the long groove 11a side and the negative polarity of the voltage of the electrode 13a. It contracts in the direction and extends in the perpendicular direction. In either case, the partition 12a returns to its original state, and the ink volumes in the long grooves 11a and 11b are restored to their original values.
【００１７】インクを噴出させない場合は、個別インク
路１５ｂに示すように、この２つの長尺溝１１ｃ、１１
ｄの各々の電極１３ｃ、１３ｄにハイインピーダンスを
印加しておけば、隔壁１２ｂは変形せず、当然ながらノ
ズル２１ｂを通じてインクは吐出されない。なお、上述
の実施例では、隔壁１２ａを変形させ、長尺溝１１ａ、
１１ｂのインク容積を減少させてインクを押し出すよう
にしたが、隔壁１２ａの元の状態への反動を利用しても
よい。即ち、まず隔壁１２ａをアレイ方向に縮小させる
と共に前記垂直な方向に伸張させて、長尺溝１１ａ、１
１ｂのインク容積を増やし、この長尺溝１１ａ、１１ｂ
にインクを充足する。次いで、隔壁１２ａを元の状態に
戻して、長尺溝１１ａ、１１ｂの容積を減ずると同時に
インクを押し出す態様であっても構わない。又、上記実
施例で隔壁１２ａの分極方向を逆向き（左向き）にした
場合、電極１３ａ、１３ｂに印加する電圧の極性を変え
ることで同様の作用効果を得ることができる。勿論、個
別インク路１５ａのインクを噴出させない場合は、個別
インク路１５ｂのように電極１３ａ、１３ｂにハイイン
ピーダンスを印加しておけばよい。When the ink is not ejected, the two elongated grooves 11c and 11 are formed as shown in the individual ink passage 15b.
If a high impedance is applied to each of the electrodes 13c and 13d of d, the partition wall 12b will not be deformed and, of course, ink will not be ejected through the nozzle 21b. In the above-described embodiment, the partition 12a is deformed so that the long groove 11a,
Although the ink volume of 11b is reduced to push out the ink, the reaction of the partition wall 12a to the original state may be used. That is, first, the partition walls 12a are contracted in the array direction and expanded in the vertical direction to form the long grooves 11a, 1
The ink volume of 1b is increased to increase the length of the long grooves 11a and 11b.
Fill up with ink. Then, the partition 12a may be returned to the original state, and the volume of the long grooves 11a and 11b may be reduced, and at the same time, the ink may be pushed out. When the polarization direction of the partition wall 12a is reversed (to the left) in the above embodiment, the same effect can be obtained by changing the polarity of the voltage applied to the electrodes 13a and 13b. Of course, when the ink in the individual ink passage 15a is not ejected, high impedance may be applied to the electrodes 13a and 13b like the individual ink passage 15b.
【００１８】[0018]
【発明の効果】本発明のインクジェットプリントヘッド
は、以上説明したように構成されるので、長尺溝内に設
けた電極に適当な極性の電圧を印加することで、個別イ
ンク路に係る電歪素子体の部分における分極の正負電荷
と印加電圧の正負極性とに応じて、電歪素子体の当該部
分がアレイ方向、及びアレイ方向と長尺溝の延在方向と
に垂直な方向に変位し、電歪素子体の当該部分の変形に
よって、結果的に個別インク路（２つの長尺溝）のイン
ク容積が変化（増減）し、容積が減少に転じた個別イン
ク路のインクが押し出されるという画期的なものであ
る。Since the ink jet print head of the present invention is constructed as described above, by applying a voltage of an appropriate polarity to the electrodes provided in the long groove, electrostriction of the individual ink paths can be achieved. Depending on the positive and negative charges of polarization and the positive and negative polarities of the applied voltage in the part of the element body, the part of the electrostrictive element body is displaced in the array direction and in the direction perpendicular to the array direction and the extending direction of the long groove. The deformation of the portion of the electrostrictive element body consequently changes (increases or decreases) the ink volume of the individual ink passages (two elongated grooves), and the ink of the individual ink passages whose volume has decreased is pushed out. It's a breakthrough.
【００１９】従って、本発明のプリントヘッドは、印字
の高密度化、高品質化を容易に実現できる。又、既存の
技術、製造工程を用いて量産できるので、生産性が非常
に高く廉価である。これらにより、上記プリントヘッド
を具備する電子機器でも、高品質な印字、印字性能の向
上等の効果が得られる。Therefore, the print head of the present invention can easily realize high density and high quality printing. Further, since the mass production can be performed by using the existing technology and manufacturing process, the productivity is very high and the price is low. As a result, even in an electronic device equipped with the above print head, effects such as high quality printing and improvement of printing performance can be obtained.
【図１】本発明のプリントヘッドの一実施例に係る分解
斜視図である。FIG. 1 is an exploded perspective view of an embodiment of a print head according to the present invention.
【図２】図１に示すプリントヘッドの要部拡大断面図で
ある。FIG. 2 is an enlarged cross-sectional view of a main part of the print head shown in FIG.
【図３】図１に示すプリントヘッドの作用を説明するた
めの要部拡大断面図である。FIG. 3 is an enlarged sectional view of an essential part for explaining the operation of the print head shown in FIG.
１ 電歪素子体 ２ ノズルプレート １１ 長尺溝 １２ 隔壁 １３ 電極 ２１ ノズル 1 Electrostrictive element body 2 nozzle plate 11 long groove 12 partitions 13 electrodes 21 nozzles
Claims (2)
レイ状に形成し、各長尺溝内に溝の壁に沿って延びる電
極を設け、隣接する２つの長尺溝ずつで１つの個別イン
ク路を構成し、長尺溝を形成した電歪素子体の表面に、
個別インク路（２つの長尺溝）に連通するノズルを有す
るノズルプレートを取付けたことを特徴とするインクジ
ェットプリントヘッド。1. An electrostrictive element body is formed with long grooves in an array at regular intervals, an electrode extending along the wall of the groove is provided in each long groove, and two adjacent long grooves are provided. To form one individual ink path on the surface of the electrostrictive element body in which a long groove is formed,
An ink jet print head having a nozzle plate having nozzles communicating with individual ink passages (two long grooves).
ッドを具備してなることを特徴とする電子機器。2. An electronic apparatus comprising the ink jet print head according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3169538A JPH0516355A (en) | 1991-07-10 | 1991-07-10 | Ink jet print head and electronic apparatus provided therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3169538A JPH0516355A (en) | 1991-07-10 | 1991-07-10 | Ink jet print head and electronic apparatus provided therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0516355A true JPH0516355A (en) | 1993-01-26 |
Family
ID=15888350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3169538A Pending JPH0516355A (en) | 1991-07-10 | 1991-07-10 | Ink jet print head and electronic apparatus provided therewith |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0516355A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0609080A2 (en) * | 1993-01-27 | 1994-08-03 | Brother Kogyo Kabushiki Kaisha | Ink jet apparatus |
-
1991
- 1991-07-10 JP JP3169538A patent/JPH0516355A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0609080A2 (en) * | 1993-01-27 | 1994-08-03 | Brother Kogyo Kabushiki Kaisha | Ink jet apparatus |
| EP0609080A3 (en) * | 1993-01-27 | 1995-05-17 | Brother Ind Ltd | Ink jet apparatus. |
| US5508726A (en) * | 1993-01-27 | 1996-04-16 | Brother Kogyo Kabushiki Kaisha | Ink jet apparatus |
| EP0860282A3 (en) * | 1993-01-27 | 1998-10-07 | Brother Kogyo Kabushiki Kaisha | Ink jet apparatus |
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