JPH0691866A - Ink jet head - Google Patents

Ink jet head

Info

Publication number
JPH0691866A
JPH0691866A JP24768092A JP24768092A JPH0691866A JP H0691866 A JPH0691866 A JP H0691866A JP 24768092 A JP24768092 A JP 24768092A JP 24768092 A JP24768092 A JP 24768092A JP H0691866 A JPH0691866 A JP H0691866A
Authority
JP
Japan
Prior art keywords
shape memory
memory alloy
ink chamber
ink
volume
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.)
Granted
Application number
JP24768092A
Other languages
Japanese (ja)
Other versions
JP2615319B2 (en
Inventor
Yoshihiro Kondo
宣裕 近藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seikosha KK
Original Assignee
Seikosha KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seikosha KK filed Critical Seikosha KK
Priority to JP4247680A priority Critical patent/JP2615319B2/en
Publication of JPH0691866A publication Critical patent/JPH0691866A/en
Application granted granted Critical
Publication of JP2615319B2 publication Critical patent/JP2615319B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

PURPOSE:To obtain an ink jet head having a shape memory alloy with an improved reliability, a reduced size, and an enhanced density. CONSTITUTION:A pressurizing vibration body 4 is heated by a drive circuit 5. In this manner, firstly, a first shape memory allay 2 reaches a transformation temperature and changes into a matrix phase, thus expanding a volume of an ink chamber 1. Next, a second shape memory alloy 3 reaches a transformation temperature and changes into a matrix phase, thus reducing a volume of the ink chamber 1. A volume change from the volume of the ink chamber 1 at the first transformation temperature to the volume of the ink chamber 1 at the next transformation temperature results in ink liquid being pressurized and jetted out of a nozzle 7 as an ink liquid drop.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、インクジェットプリン
タに用いられるインクジェットヘッドにおいて、特に複
数のインク噴出ノズルを有するマルチノズルタイプのイ
ンクジェットヘッドに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet head used in an ink jet printer, and more particularly to a multi nozzle type ink jet head having a plurality of ink ejection nozzles.

【０００２】[0002]

【従来の技術】ドロップ・オン・デマンド型のインクジ
ェットプリンタの方式として、印字情報信号に応じて、
インク室に付設された加圧振動機構である圧電素子にパ
ルス電圧を印加して、上記圧電素子を変形させて、イン
ク室の容積を変化させ、この中のインク液圧を加圧し、
インク室と連通するヘッド先端のノズルから、インク液
滴を噴出させて、離間対向する記録用紙等の記録媒体に
印字する方法がとられている。2. Description of the Related Art As a method of a drop-on-demand type ink jet printer, according to a print information signal,
A pulse voltage is applied to a piezoelectric element that is a pressure vibration mechanism attached to the ink chamber to deform the piezoelectric element to change the volume of the ink chamber and pressurize the ink liquid pressure therein.
A method has been adopted in which ink droplets are ejected from a nozzle at the tip of a head that communicates with an ink chamber, and printing is performed on a recording medium such as recording paper that faces away from one another.

【０００３】このような、マルチノズルタイプのインク
ジェットプリンタでは、記録密度の向上とヘッドの小型
化が望まれるが、圧電素子の電気から機械的変形への変
換効率が低いため、圧電素子の大きさを小さくできず、
高密度化や小型化が困難である。In such a multi-nozzle type ink jet printer, it is desired to improve the recording density and downsize the head, but since the conversion efficiency of the piezoelectric element from electricity to mechanical deformation is low, the size of the piezoelectric element is small. Cannot be made smaller,
It is difficult to achieve high density and miniaturization.

【０００４】現在、インクジェットヘッドの小型化と高
密度記録を実現させるため、圧電素子を用いた加圧振動
機構に代る新たな加圧振動機構が試みられている。例え
ば、特開昭６３−５７２５１号公報に開示されるインク
ジェットヘッドのように加圧振動機構として、機械的変
形の大きな形状記憶合金とそれを加熱する加熱手段とを
組み合わせたものを用いたものがある。At present, in order to realize the miniaturization of the ink jet head and the high density recording, a new pressure vibrating mechanism has been attempted instead of the pressure vibrating mechanism using a piezoelectric element. For example, as an ink jet head disclosed in Japanese Patent Laid-Open No. 63-57251, one using a combination of a shape memory alloy having large mechanical deformation and a heating means for heating the same as a pressure vibration mechanism. is there.

【０００５】[0005]

【発明が解決しようとする課題】上記の形状記憶合金を
用いた加圧振動機構では、一般的形状記憶合金の特性と
して、変態温度以上に加熱され母相に戻る際の形状は安
定しているものの、変態温度以下のいわゆるマルテンサ
イト相の形状は、熱処理等で記憶されるが、不安定な面
がある。このため、変態温度以下では、インク室の容積
を一定に維持するのは難しく、元の形状に比べてある程
度の誤差を生じる。この誤差によりインクの噴出特性が
変化するため、印字品質の劣化の原因となる。In the pressure vibrating mechanism using the above-mentioned shape memory alloy, as a characteristic of a general shape memory alloy, the shape when it is heated above the transformation temperature and returns to the parent phase is stable. However, the shape of the so-called martensite phase below the transformation temperature is memorized by heat treatment or the like, but there is an unstable surface. Therefore, below the transformation temperature, it is difficult to maintain the volume of the ink chamber constant, and a certain degree of error occurs compared to the original shape. The ink ejection characteristics change due to this error, which causes deterioration of print quality.

【０００６】本発明は、形状記憶合金を用いたインクジ
ェットヘッドの信頼性の向上と、小型化と、高密度化と
を目的とする。It is an object of the present invention to improve the reliability of an ink jet head using a shape memory alloy, reduce its size, and increase its density.

【０００７】[0007]

【課題を解決するための手段】本発明は、変態温度の異
なる第１および第２の形状記憶合金を積層して加圧振動
体を構成し、この加圧振動体をインク室に付設し加熱す
ることにより、インク室と連通したノズルからインク液
を射出するよう構成することにより、上記目的を達成す
るものである。According to the present invention, a pressure vibrating body is constructed by laminating first and second shape memory alloys having different transformation temperatures, and the pressure vibrating body is attached to an ink chamber and heated. By doing so, the above-mentioned object is achieved by configuring the ink liquid to be ejected from the nozzle communicating with the ink chamber.

【０００８】上記加圧振動体は、室温より高い第１の温
度以上で上記インク室の容積を拡大する方向に変形し、
かつ第１の温度より高温の第２の温度以上で上記インク
室の容積を縮小する方向に変形することが好ましい。The pressure vibrating body is deformed in a direction to expand the volume of the ink chamber at a first temperature higher than room temperature or higher,
Further, it is preferable that the ink chamber is deformed in a direction of reducing the volume of the ink chamber at a second temperature higher than the first temperature or higher.

【０００９】[0009]

【実施例】本発明の一実施例のインクジェットヘッドに
ついて図を参照しながら説明する。図１は本発明のの構
成を示す説明図であり、同図において、Ｘはインクジェ
ットヘッド部であり、図１においては図２のＡ−Ａ線で
の断面が示されている。１はインク室であり、長さ１０
０〜１００００μｍ、幅５０〜５００μｍである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An inkjet head according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing the configuration of the present invention. In FIG. 1, X is an inkjet head portion, and FIG. 1 shows a cross section taken along the line AA in FIG. 1 is an ink chamber and has a length of 10
The width is 0 to 10000 μm and the width is 50 to 500 μm.

【００１０】２は第１の形状記憶合金であり、３は第２
の形状記憶合金であり、これらを積層固定することによ
り加圧振動体４を構成している。これらの形状記憶合金
としては、Ｎｉ−Ｔｉ系合金や、Ｃｕ−Ｚｎ−Ａｌ系合
金等を用いることが可能であり、本例では、Ｎｉ−Ｔｉ
系合金を使用することとする。2 is the first shape memory alloy, and 3 is the second
The shape-vibrating alloy is formed by laminating and fixing the shape-memory alloys. As these shape memory alloys, Ni—Ti based alloys, Cu—Zn—Al based alloys, etc. can be used. In this example, Ni—Ti based alloys are used.
A system alloy will be used.

【００１１】このＮｉ−Ｔｉ系形状記憶合金の硬さと温
度変化の様子は次のとうりである。例えば、長さ４０ｍ
ｍ、幅８．９ｍｍ、厚さ０．３２ｍｍの合金において、
長さ方向に１．５ｍｍの変位量を得るのに必要とする押
付力は、マルテンサイト相である２０°Ｃでは約０．３
５Ｎであるが、変態温度８０°Ｃとしてそれ以上の温度
の母相では、約１．９Ｎとなり、マルテンサイト相での
それの５倍以上となる。The hardness and temperature changes of this Ni-Ti type shape memory alloy are as follows. For example, length 40m
m, width 8.9 mm, thickness 0.32 mm alloy,
The pressing force required to obtain a displacement of 1.5 mm in the length direction is about 0.3 at 20 ° C, which is the martensite phase.
Although it is 5N, it becomes about 1.9N in the mother phase at a transformation temperature of 80 ° C or higher, which is 5 times or more that of the martensite phase.

【００１２】また、その変態温度は、合金の組成により
可変であり、例えば、５０ａｔ％Ｎｉでの変態温度は約
８０°Ｃであり、Ｎｉの組成が０．１ａｔ％ずれると、
１０°Ｃ低くなる。The transformation temperature is variable depending on the composition of the alloy. For example, the transformation temperature at 50 at% Ni is about 80 ° C, and if the Ni composition deviates by 0.1 at%,
10 ° C lower.

【００１３】以上のような特性のＮｉ−Ｔｉ系形状記憶
合金からなる第１の形状記憶合金２は、厚み約１００μ
ｍ、面積０．１〜１０ｍｍ2 であり、第２の形状記憶合
金３の上面に積層され、マルテンサイト相での形状は、
平面形であり、変態温度を約５０°Ｃとし、その温度を
越えた母相での形状は、図１の上方に撓むように形成さ
れている。The first shape memory alloy 2 made of the Ni-Ti type shape memory alloy having the above characteristics has a thickness of about 100 μm.
m, the area is 0.1 to 10 mm 2 , and is laminated on the upper surface of the second shape memory alloy 3, and the shape in the martensite phase is
It is a planar shape, the transformation temperature is about 50 ° C., and the shape in the parent phase exceeding that temperature is formed to bend upward in FIG.

【００１４】同様にＮｉ−Ｔｉ系形状記憶合金からなる
第２の形状記憶合金３は、厚み約２５０μｍ、面積０．
１〜１０ｍｍ２であり、インク室１の上面に付設されそ
の外周を固定してあり、マルテンサイト相での形状は、
平面形であり、変態温度を約６０°Ｃとし、その温度を
越えた母相での形状は、下方に撓むように形成されてい
る。Similarly, the second shape memory alloy 3 made of Ni-Ti type shape memory alloy has a thickness of about 250 μm and an area of 0.
It is 1 to 10 mm2, is attached to the upper surface of the ink chamber 1 and has its outer periphery fixed, and the shape in the martensite phase is
It has a flat shape, the transformation temperature is about 60 ° C., and the shape in the parent phase exceeding that temperature is formed to bend downward.

【００１５】上記第１の形状記憶合金２および第２の形
状記憶合金３を積層固定してなる加圧振動体４は、上記
温度５０°Ｃ、６０°Ｃにおいて形状を変化させ、イン
ク室１の容積を拡大、縮小させ、同内のインクを加圧す
る。The pressure vibrating body 4 formed by stacking and fixing the first shape memory alloy 2 and the second shape memory alloy 3 changes its shape at the temperatures of 50 ° C. and 60 ° C., and the ink chamber 1 The volume of the ink is expanded and contracted, and the ink in the same is pressurized.

【００１６】なお、本例において加圧振動体４は第１の
形状記憶合金２を上に第２の形状記憶合金３を下にして
積層固定してなるが、この上下の順を変更しても同様の
動作が可能である。In this example, the pressure vibrating body 4 is formed by laminating and fixing the first shape memory alloy 2 on the upper side and the second shape memory alloy 3 on the lower side. Can also perform the same operation.

【００１７】５は加熱手段としての駆動回路であり、制
御回路（図示せず）の印字情報信号を受け、加圧振動体
４に１ｋＨｚの矩形波を通電し、加圧振動体４を加熱す
る。６は供給手段としてのインク流路であり、この深さ
は１０〜１００μｍである。これはインク室１に連通し
ており、インク室１にインクを供給する。７はノズルで
あり、直径１０〜１００μｍである。これはインク室１
に連通しており、加圧振動体４により加圧されたインク
液を射出する。Reference numeral 5 denotes a drive circuit as heating means, which receives a print information signal from a control circuit (not shown) and energizes the pressure vibrating body 4 with a rectangular wave of 1 kHz to heat the pressure vibrating body 4. . 6 is an ink flow path as a supply means, and the depth thereof is 10 to 100 μm. It communicates with the ink chamber 1 and supplies ink to the ink chamber 1. A nozzle 7 has a diameter of 10 to 100 μm. This is the ink chamber 1
The ink liquid pressurized by the pressure vibrating body 4 is ejected.

【００１８】次に動作について、図１、図３、図４、を
参照しながら説明する。Next, the operation will be described with reference to FIGS. 1, 3, and 4.

【００１９】まず、制御回路（図示せず）の印字情報信
号を受けた駆動回路５は、加圧振動体４に１ｋＨｚの矩
形波を通電する。通電により加圧振動体４は加熱され
る。First, the drive circuit 5 which receives the print information signal from the control circuit (not shown) energizes the pressure vibrating body 4 with a rectangular wave of 1 kHz. The pressure vibrating body 4 is heated by energization.

【００２０】ここで図３には、温度変化に伴なうインク
室１の容積変化を示してある。同図においては、マルテ
ンサイト相をマルテンと表し、インク室１の容積の変化
がな無い場合の形状であれば同じと表し、容積が拡大す
る形状の場合には拡大と表し、容積が縮小する形状の場
合には縮小と表してある。同図を用いて室温より６０°
Ｃ以上になり再び室温になる過程に従って加圧振動体４
の動作を説明する。Here, FIG. 3 shows the volume change of the ink chamber 1 due to the temperature change. In the figure, the martensite phase is represented as martens, and the shape is the same when the volume of the ink chamber 1 is not changed, and the shape is expanded when the volume is increased, and the volume is reduced. In the case of a shape, it is expressed as reduction. 60 ° from room temperature
As the temperature rises above C and returns to room temperature, the pressure vibrating body 4
The operation of will be described.

【００２１】まず、室温から５０°Ｃまでの温度範囲で
は、第１の形状記憶合金２および第２の形状記憶合金３
はともにマルテンサイト相の状態であり、いずれの形状
記憶合金も形状変化を示さない。このときインク室１の
形状は図４に示される初期状態の形状となる。First, in the temperature range from room temperature to 50 ° C., the first shape memory alloy 2 and the second shape memory alloy 3 are formed.
Are both in the martensite phase state, and none of the shape memory alloys show a shape change. At this time, the shape of the ink chamber 1 becomes the shape in the initial state shown in FIG.

【００２２】５０°Ｃ以上で６０°Ｃより低い温度範囲
では、第１の形状記憶合金２が母相であり、事前に記憶
された形状に変化する。ここでは上方に撓む形状を示
す。第２の形状記憶合金３はマルテンサイト相の状態に
あり、形状変化を示さない。In the temperature range of 50 ° C. or higher and lower than 60 ° C., the first shape memory alloy 2 is the parent phase and changes to the shape stored in advance. Here, a shape that bends upward is shown. The second shape memory alloy 3 is in a martensite phase state and does not show any shape change.

【００２３】このとき第１の形状記憶合金２の厚さ（１
００μｍ）に対して第２の形状記憶合金の厚さ（２５０
μｍ）は厚いが、第１の形状記憶合金の変化は母相によ
るものであり、母相での押付力はマルテンサイト相での
それの約５倍であるため、この第１の形状記憶合金２の
形状変化は、第２の形状記憶合金３をも上方に撓ませ、
加圧振動体４は上方に撓む。これによりインク室１の形
状は、図４に示すように容積を拡大する。インク室１が
容積を拡大することによりインク供給効率の向上にもつ
ながる。At this time, the thickness of the first shape memory alloy 2 (1
Thickness of the second shape memory alloy (250 μm) (250 μm)
μm) is thick, but the change in the first shape memory alloy is due to the matrix phase, and the pressing force in the matrix phase is about 5 times that in the martensite phase. The shape change of 2 also causes the second shape memory alloy 3 to bend upward,
The pressure vibrating body 4 bends upward. As a result, the shape of the ink chamber 1 expands in volume as shown in FIG. Increasing the volume of the ink chamber 1 also leads to an improvement in ink supply efficiency.

【００２４】６０°Ｃ以上の温度範囲では、第１の形状
記憶合金２および第２の形状記憶合金３はともに母相の
状態となり、第１の形状記憶合金２は下方へ撓もうと
し、第２の形状記憶合金３は上方へ撓もうとする。この
ように第１の形状記憶合金２と第２の形状記憶合金３と
は互いに逆向の形状変化を行なおうとするが、第１の形
状記憶合金２の厚さ（１００μｍ）に対して第２の形状
記憶合金の厚さ（２５０μｍ）は厚いために、第２の形
状記憶合金３は第１の形状記憶合金２をも下方に撓ま
せ、加圧振動体４は下方に撓む。これにより、加圧振動
体４は図４に示すようにインク室容積を縮小し、インク
を加圧しノズル７よりインク液滴を射出する。In the temperature range of 60 ° C. or higher, both the first shape memory alloy 2 and the second shape memory alloy 3 are in the parent phase state, and the first shape memory alloy 2 tries to bend downward, The shape memory alloy 3 of 2 tries to bend upward. As described above, the first shape memory alloy 2 and the second shape memory alloy 3 try to change their shapes in the opposite directions, but the second shape memory alloy 2 and the second shape memory alloy 3 are changed to the second shape memory layer 2 with respect to the thickness (100 μm) of the first shape memory alloy 2. Since the thickness (250 μm) of the shape memory alloy is thick, the second shape memory alloy 3 also causes the first shape memory alloy 2 to bend downward, and the pressurizing vibration body 4 bends downward. As a result, the pressure vibrating body 4 reduces the volume of the ink chamber as shown in FIG. 4, pressurizes the ink, and ejects an ink droplet from the nozzle 7.

【００２５】インク液滴の射出の後、駆動回路よりの電
流の通電が停止され、温度が下りはじめると、加熱の場
合とは逆の過程を経て初期状態に戻る。まず６０°Ｃよ
り低くなると第２の形状記憶合金がマルテンサイト相と
なり、第１の形状記憶合金によりインク室１は容積を拡
大される。温度が５０°Ｃより低くなると第１の形状記
憶合金もマルテンサイト相となり初期状態に戻る。After the ink droplets have been ejected, the energization of the current from the drive circuit is stopped, and when the temperature starts to drop, the process returns to the initial state through a process reverse to the case of heating. First, when the temperature is lower than 60 ° C., the second shape memory alloy becomes a martensite phase, and the volume of the ink chamber 1 is expanded by the first shape memory alloy. When the temperature becomes lower than 50 ° C, the first shape memory alloy also becomes a martensite phase and returns to the initial state.

【００２６】以上のように加圧振動体４のインク噴出動
作は、インク室１の拡大、縮小の二つの動作をともな
い、それぞれの形状が第１の形状記憶合金と第２の形状
記憶合金の母相で規定されるため、初期状態にかかわら
ず、安定した形状変化となり、インクの噴出特性が安定
し、印字品質が安定する。また、冷却され初期状態に戻
る際も、一度インク室１の容積を拡大する動作を行なう
ため、すばやくインク補給がなされ、高速化できる。As described above, the ink jetting operation of the pressure vibrating body 4 involves the two operations of expanding and contracting the ink chamber 1, and the respective shapes are the same as those of the first shape memory alloy and the second shape memory alloy. Since it is defined by the mother phase, the shape change is stable regardless of the initial state, the ink ejection characteristics are stable, and the print quality is stable. Further, even when the ink is cooled and returned to the initial state, the operation of expanding the volume of the ink chamber 1 is performed once, so that the ink can be quickly replenished and the speed can be increased.

【００２７】なお上記の例では第１の形状記憶合金２お
よび第２の形状記憶合金３のそれぞれの変態温度を５０
°Ｃと６０°Ｃとしたが、変態温度はそれら形状記憶合
金の形成段階でさまざまに設定でき、変更可能である。In the above example, the transformation temperature of each of the first shape memory alloy 2 and the second shape memory alloy 3 is set to 50.
Although the temperature is set to ° C and 60 ° C, the transformation temperature can be variously set and changed at the stage of forming the shape memory alloy.

【００２８】例えば第１の形状記憶合金２の変態温度を
室温より低く設定し、室温では常に母相での形状に維持
する。これにより加圧振動体４は室温では常時、インク
室１の容積を拡大する形状となり、上記のインク室１の
形状を示す図４に示される初期状態が無くなり、加圧振
動体の動作は、拡大と縮小の二つの動作となる。このよ
うに変更しても上記の例と同様の効果を得ることが可能
である。For example, the transformation temperature of the first shape memory alloy 2 is set lower than room temperature, and the shape of the parent phase is always maintained at room temperature. As a result, the pressure vibrating body 4 has a shape that always expands the volume of the ink chamber 1 at room temperature, the initial state shown in FIG. 4 showing the shape of the ink chamber 1 disappears, and the operation of the pressure vibrating body is There are two operations, enlargement and reduction. Even with such a change, it is possible to obtain the same effect as the above example.

【００２９】[0029]

【発明の効果】加圧振動体に変態温度の異なる第１の形
状記憶合金と第２の形状記憶合金を用い、それぞれの母
相によりインク室の最小容積と、最大容積が決まるた
め、インク液の加圧に要する容積変化は常に一定のもの
となり、射出されるインク液の量や射出圧等が一定とな
り、安定したインク射出が行なえる。これにより小型で
信頼性の高いインクジェットヘッドが実現可能となる。As described above, the first shape memory alloy and the second shape memory alloy having different transformation temperatures are used for the pressure vibrating body, and the minimum volume and the maximum volume of the ink chamber are determined by the respective mother phases. The volume change required for pressurization is always constant, the amount of the ejected ink liquid, the ejection pressure and the like are constant, and stable ink ejection can be performed. This makes it possible to realize a compact and highly reliable inkjet head.

【００３０】特に、加圧振動体に所望の温度以上で上記
インク室の容積を拡大する方向に変形し、かつ上記所望
の温度より高温の所定の温度以上で上記インク室の容積
を縮小する方向に変形するものを用いることで、加圧振
動体によるインク液の加圧に要する容積変化が大きいた
め、インク室自体の容積を小さく形成でき、小型高密度
化の面では効果的である。In particular, the pressure vibrating body is deformed in a direction in which the volume of the ink chamber is expanded at a desired temperature or higher, and is reduced in a direction at a predetermined temperature higher than the desired temperature or higher. By using the one that is deformed, the volume change required for pressurizing the ink liquid by the pressurizing vibrating body is large, so that the volume of the ink chamber itself can be made small, which is effective in terms of miniaturization and high density.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例のインクジェットヘッドの構
成を示す説明図。FIG. 1 is an explanatory diagram showing a configuration of an inkjet head according to an embodiment of the present invention.

【図２】図１の要部の平面図。FIG. 2 is a plan view of a main part of FIG.

【図３】図１の動作の説明のための説明図。FIG. 3 is an explanatory diagram for explaining the operation of FIG. 1.

【図３】図１の動作の説明のための説明図。FIG. 3 is an explanatory diagram for explaining the operation of FIG. 1.

【符号の説明】[Explanation of symbols]

１ インク室 ２ 第１の形状記憶合金 ３ 第２の形状記憶合金 ４ 加圧振動体 ５ 加熱手段 ６ 供給手段 ７ ノズル 1 Ink Chamber 2 First Shape Memory Alloy 3 Second Shape Memory Alloy 4 Pressurized Vibration Body 5 Heating Means 6 Supply Means 7 Nozzles

─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成５年３月１５日[Submission date] March 15, 1993

【手続補正１】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】図面の簡単な説明[Name of item to be corrected] Brief description of the drawing

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例のインクジェットヘッドの構
成を示す説明図。FIG. 1 is an explanatory diagram showing a configuration of an inkjet head according to an embodiment of the present invention.

【図２】図１の要部の平面図。FIG. 2 is a plan view of a main part of FIG.

【図３】図１の動作の説明のための説明図。FIG. 3 is an explanatory diagram for explaining the operation of FIG. 1.

【図４】図１の動作の説明のための説明図。FIG. 4 is an explanatory diagram for explaining the operation of FIG.

【符号の説明】 １ インク室 ２ 第１の形状記憶合金 ３ 第２の形状記憶合金 ４ 加圧振動体 ５ 加熱手段 ６ 供給手段 ７ ノズル[Explanation of reference numerals] 1 ink chamber 2 first shape memory alloy 3 second shape memory alloy 4 pressurizing vibrating body 5 heating means 6 supply means 7 nozzle

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 インク室と、変態温度の異なる第１の形
状記憶合金と第２の形状記憶合金とを積層してなり上記
インク室内のインク液圧を加圧する上記インク室に付設
された加圧振動体と、上記加圧振動体を加熱する加熱手
段と、上記インク室にインクを供給する供給手段と、上
記加圧振動体により加圧されたインク液を射出する上記
インク室と連通したノズルとを具備するインクジェット
ヘッド。1. An ink chamber which is formed by stacking an ink chamber, a first shape memory alloy and a second shape memory alloy having different transformation temperatures, and which is attached to the ink chamber for pressurizing an ink liquid pressure in the ink chamber. The pressure vibrating body, the heating means for heating the pressure vibrating body, the supply means for supplying ink to the ink chamber, and the ink chamber for ejecting the ink liquid pressurized by the pressure vibrating body are in communication with each other. An inkjet head including a nozzle. 【請求項２】 上記加圧振動体は、室温より高い第１の
温度以上で第１の形状記憶合金が母相となり、上記イン
ク室の容積を拡大する方向に変形し、かつ第１の温度よ
り高温の第２の温度以上で第２の形状記憶合金が母相と
なり、上記インク室の容積を縮小する方向に変形するこ
とを特徴とする請求項１記載のインクジェットヘッド。2. The pressure vibrating body, wherein the first shape memory alloy becomes a mother phase at a first temperature higher than room temperature or higher, is deformed in a direction of expanding the volume of the ink chamber, and is at a first temperature. The ink jet head according to claim 1, wherein the second shape memory alloy becomes a matrix phase at a higher temperature than the second temperature and is deformed in a direction of reducing the volume of the ink chamber. 【請求項３】 上記加圧振動体は、室温では第１の形状
記憶合金が母相であり、上記インク室の容積を拡大する
方向に変形しており、かつ室温より高温の第３の温度以
上で第２の形状記憶合金が母相となり、上記インク室の
容積を縮小する方向に変形することを特徴とする請求項
１記載のインクジェットヘッド。3. The pressure vibrating body, wherein the first shape memory alloy is a matrix phase at room temperature, is deformed in a direction of expanding the volume of the ink chamber, and is at a third temperature higher than room temperature. The inkjet head according to claim 1, wherein the second shape memory alloy becomes a matrix phase and is deformed in a direction of reducing the volume of the ink chamber.
JP4247680A 1992-09-17 1992-09-17 Inkjet head Expired - Fee Related JP2615319B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4247680A JP2615319B2 (en) 1992-09-17 1992-09-17 Inkjet head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4247680A JP2615319B2 (en) 1992-09-17 1992-09-17 Inkjet head

Publications (2)

Publication Number Publication Date
JPH0691866A true JPH0691866A (en) 1994-04-05
JP2615319B2 JP2615319B2 (en) 1997-05-28

Family

ID=17167057

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4247680A Expired - Fee Related JP2615319B2 (en) 1992-09-17 1992-09-17 Inkjet head

Country Status (1)

Country Link
JP (1) JP2615319B2 (en)

Cited By (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990069797A (en) * 1998-02-13 1999-09-06 이형도 Droplet ejector on the printhead
KR19990070319A (en) * 1998-02-19 1999-09-15 이형도 Droplet ejector on the printhead
KR100359107B1 (en) * 1999-07-23 2002-11-04 삼성전자 주식회사 A method for manufacturing actuator of inkjet printhead
KR100374591B1 (en) * 1998-12-30 2003-03-03 삼성전자주식회사 Printer head using shape memory alloy and method for manufacturing the same
KR100385969B1 (en) * 1999-07-13 2003-06-02 삼성전자주식회사 Micro actuator for ink jet printer head using multi-layer shape memory alloy and fabricating method thereof
US6776476B2 (en) 1997-07-15 2004-08-17 Silverbrook Research Pty Ltd. Ink jet printhead chip with active and passive nozzle chamber structures
US6783217B2 (en) 1997-07-15 2004-08-31 Silverbrook Research Pty Ltd Micro-electromechanical valve assembly
US6786661B2 (en) 1997-07-15 2004-09-07 Silverbrook Research Pty Ltd. Keyboard that incorporates a printing mechanism
US6824251B2 (en) 1997-07-15 2004-11-30 Silverbrook Research Pty Ltd Micro-electromechanical assembly that incorporates a covering formation for a micro-electromechanical device
US6834939B2 (en) 2002-11-23 2004-12-28 Silverbrook Research Pty Ltd Micro-electromechanical device that incorporates covering formations for actuators of the device
US6848780B2 (en) 1997-07-15 2005-02-01 Sivlerbrook Research Pty Ltd Printing mechanism for a wide format pagewidth inkjet printer
US6880918B2 (en) 1997-07-15 2005-04-19 Silverbrook Research Pty Ltd Micro-electromechanical device that incorporates a motion-transmitting structure
US6880914B2 (en) 1997-07-15 2005-04-19 Silverbrook Research Pty Ltd Inkjet pagewidth printer for high volume pagewidth printing
US6886918B2 (en) 1998-06-09 2005-05-03 Silverbrook Research Pty Ltd Ink jet printhead with moveable ejection nozzles
US6886917B2 (en) 1998-06-09 2005-05-03 Silverbrook Research Pty Ltd Inkjet printhead nozzle with ribbed wall actuator
US6916082B2 (en) 1997-07-15 2005-07-12 Silverbrook Research Pty Ltd Printing mechanism for a wide format pagewidth inkjet printer
US6927786B2 (en) 1997-07-15 2005-08-09 Silverbrook Research Pty Ltd Ink jet nozzle with thermally operable linear expansion actuation mechanism
US6929352B2 (en) 1997-07-15 2005-08-16 Silverbrook Research Pty Ltd Inkjet printhead chip for use with a pulsating pressure ink supply
US6932459B2 (en) 1997-07-15 2005-08-23 Silverbrook Research Pty Ltd Ink jet printhead
US6935724B2 (en) 1997-07-15 2005-08-30 Silverbrook Research Pty Ltd Ink jet nozzle having actuator with anchor positioned between nozzle chamber and actuator connection point
US6976751B2 (en) 1997-07-15 2005-12-20 Silverbrook Research Pty Ltd Motion transmitting structure
US6986613B2 (en) 1997-07-15 2006-01-17 Silverbrook Research Pty Ltd Keyboard
US7004566B2 (en) 1997-07-15 2006-02-28 Silverbrook Research Pty Ltd Inkjet printhead chip that incorporates micro-mechanical lever mechanisms
US7008041B2 (en) 1997-07-15 2006-03-07 Silverbrook Research Pty Ltd Printing mechanism having elongate modular structure
US7008046B2 (en) 1997-07-15 2006-03-07 Silverbrook Research Pty Ltd Micro-electromechanical liquid ejection device
US7022250B2 (en) 1997-07-15 2006-04-04 Silverbrook Research Pty Ltd Method of fabricating an ink jet printhead chip with differential expansion actuators
US7040738B2 (en) 1997-07-15 2006-05-09 Silverbrook Research Pty Ltd Printhead chip that incorporates micro-mechanical translating mechanisms
US7044584B2 (en) 1997-07-15 2006-05-16 Silverbrook Research Pty Ltd Wide format pagewidth inkjet printer
US7066574B2 (en) 1997-07-15 2006-06-27 Silverbrook Research Pty Ltd Micro-electromechanical device having a laminated thermal bend actuator
US7111924B2 (en) 1998-10-16 2006-09-26 Silverbrook Research Pty Ltd Inkjet printhead having thermal bend actuator heating element electrically isolated from nozzle chamber ink
US7111925B2 (en) 1997-07-15 2006-09-26 Silverbrook Research Pty Ltd Inkjet printhead integrated circuit
US7131715B2 (en) 1997-07-15 2006-11-07 Silverbrook Research Pty Ltd Printhead chip that incorporates micro-mechanical lever mechanisms
US7144519B2 (en) 1998-10-16 2006-12-05 Silverbrook Research Pty Ltd Method of fabricating an inkjet printhead chip having laminated actuators
US7147302B2 (en) 1997-07-15 2006-12-12 Silverbrook Researh Pty Ltd Nozzle assembly
US7175260B2 (en) 2002-06-28 2007-02-13 Silverbrook Research Pty Ltd Ink jet nozzle arrangement configuration
US7195339B2 (en) 1997-07-15 2007-03-27 Silverbrook Research Pty Ltd Ink jet nozzle assembly with a thermal bend actuator
US7207654B2 (en) 1997-07-15 2007-04-24 Silverbrook Research Pty Ltd Ink jet with narrow chamber
US7240992B2 (en) 1997-07-15 2007-07-10 Silverbrook Research Pty Ltd Ink jet printhead incorporating a plurality of nozzle arrangement having backflow prevention mechanisms
US7246883B2 (en) 1997-07-15 2007-07-24 Silverbrook Research Pty Ltd Motion transmitting structure for a nozzle arrangement of a printhead chip for an inkjet printhead
US7246884B2 (en) 1997-07-15 2007-07-24 Silverbrook Research Pty Ltd Inkjet printhead having enclosed inkjet actuators
US7252366B2 (en) 1997-07-15 2007-08-07 Silverbrook Research Pty Ltd Inkjet printhead with high nozzle area density
US7267424B2 (en) 1997-07-15 2007-09-11 Silverbrook Research Pty Ltd Wide format pagewidth printer
US7278711B2 (en) 1997-07-15 2007-10-09 Silverbrook Research Pty Ltd Nozzle arrangement incorporating a lever based ink displacement mechanism
US7287836B2 (en) 1997-07-15 2007-10-30 Sil;Verbrook Research Pty Ltd Ink jet printhead with circular cross section chamber
US7303254B2 (en) 1997-07-15 2007-12-04 Silverbrook Research Pty Ltd Print assembly for a wide format pagewidth printer
US7360872B2 (en) 1997-07-15 2008-04-22 Silverbrook Research Pty Ltd Inkjet printhead chip with nozzle assemblies incorporating fluidic seals
US7381340B2 (en) 1997-07-15 2008-06-03 Silverbrook Research Pty Ltd Ink jet printhead that incorporates an etch stop layer
US7401901B2 (en) 1997-07-15 2008-07-22 Silverbrook Research Pty Ltd Inkjet printhead having nozzle plate supported by encapsulated photoresist
US7407269B2 (en) 2002-06-28 2008-08-05 Silverbrook Research Pty Ltd Ink jet nozzle assembly including displaceable ink pusher
US7431446B2 (en) 1997-07-15 2008-10-07 Silverbrook Research Pty Ltd Web printing system having media cartridge carousel
US7434915B2 (en) 1997-07-15 2008-10-14 Silverbrook Research Pty Ltd Inkjet printhead chip with a side-by-side nozzle arrangement layout
US7461924B2 (en) 1997-07-15 2008-12-09 Silverbrook Research Pty Ltd Printhead having inkjet actuators with contractible chambers
US7465030B2 (en) 1997-07-15 2008-12-16 Silverbrook Research Pty Ltd Nozzle arrangement with a magnetic field generator
US7468139B2 (en) 1997-07-15 2008-12-23 Silverbrook Research Pty Ltd Method of depositing heater material over a photoresist scaffold
US7524026B2 (en) 1997-07-15 2009-04-28 Silverbrook Research Pty Ltd Nozzle assembly with heat deflected actuator
US7556356B1 (en) 1997-07-15 2009-07-07 Silverbrook Research Pty Ltd Inkjet printhead integrated circuit with ink spread prevention
US7571988B2 (en) 2000-05-23 2009-08-11 Silverbrook Research Pty Ltd Variable-volume nozzle arrangement
US7607756B2 (en) 1997-07-15 2009-10-27 Silverbrook Research Pty Ltd Printhead assembly for a wallpaper printer
US7753463B2 (en) 1997-07-15 2010-07-13 Silverbrook Research Pty Ltd Processing of images for high volume pagewidth printing
US7758142B2 (en) 2002-04-12 2010-07-20 Silverbrook Research Pty Ltd High volume pagewidth printing
US7771017B2 (en) 1997-07-15 2010-08-10 Silverbrook Research Pty Ltd Nozzle arrangement for an inkjet printhead incorporating a protective structure
US7784902B2 (en) 1997-07-15 2010-08-31 Silverbrook Research Pty Ltd Printhead integrated circuit with more than 10000 nozzles
US7802871B2 (en) 1997-07-15 2010-09-28 Silverbrook Research Pty Ltd Ink jet printhead with amorphous ceramic chamber
US7854500B2 (en) 1998-11-09 2010-12-21 Silverbrook Research Pty Ltd Tamper proof print cartridge for a video game console
US7891767B2 (en) 1997-07-15 2011-02-22 Silverbrook Research Pty Ltd Modular self-capping wide format print assembly
US8109611B2 (en) 2002-04-26 2012-02-07 Silverbrook Research Pty Ltd Translation to rotation conversion in an inkjet printhead

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02265752A (en) * 1989-04-05 1990-10-30 Matsushita Electric Ind Co Ltd Ink-jet recording head

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02265752A (en) * 1989-04-05 1990-10-30 Matsushita Electric Ind Co Ltd Ink-jet recording head

Cited By (228)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7568791B2 (en) 1997-07-15 2009-08-04 Silverbrook Research Pty Ltd Nozzle arrangement with a top wall portion having etchant holes therein
US7566110B2 (en) 1997-07-15 2009-07-28 Silverbrook Research Pty Ltd Printhead module for a wide format pagewidth inkjet printer
US7942503B2 (en) 1997-07-15 2011-05-17 Silverbrook Research Pty Ltd Printhead with nozzle face recess to contain ink floods
US7938509B2 (en) 1997-07-15 2011-05-10 Silverbrook Research Pty Ltd Nozzle arrangement with sealing structure
US7934796B2 (en) 1997-07-15 2011-05-03 Silverbrook Research Pty Ltd Wide format printer having high speed printhead
US6776476B2 (en) 1997-07-15 2004-08-17 Silverbrook Research Pty Ltd. Ink jet printhead chip with active and passive nozzle chamber structures
US6783217B2 (en) 1997-07-15 2004-08-31 Silverbrook Research Pty Ltd Micro-electromechanical valve assembly
US6786661B2 (en) 1997-07-15 2004-09-07 Silverbrook Research Pty Ltd. Keyboard that incorporates a printing mechanism
US6808325B2 (en) 1997-07-15 2004-10-26 Silverbrook Research Pty Ltd Keyboard with an internal printer
US6824251B2 (en) 1997-07-15 2004-11-30 Silverbrook Research Pty Ltd Micro-electromechanical assembly that incorporates a covering formation for a micro-electromechanical device
US7934803B2 (en) 1997-07-15 2011-05-03 Kia Silverbrook Inkjet nozzle arrangement with rectangular plan nozzle chamber and ink ejection paddle
US6840600B2 (en) 1997-07-15 2005-01-11 Silverbrook Research Pty Ltd Fluid ejection device that incorporates covering formations for actuators of the fluid ejection device
US7922298B2 (en) 1997-07-15 2011-04-12 Silverbrok Research Pty Ltd Ink jet printhead with displaceable nozzle crown
US6880918B2 (en) 1997-07-15 2005-04-19 Silverbrook Research Pty Ltd Micro-electromechanical device that incorporates a motion-transmitting structure
US6880914B2 (en) 1997-07-15 2005-04-19 Silverbrook Research Pty Ltd Inkjet pagewidth printer for high volume pagewidth printing
US7922293B2 (en) 1997-07-15 2011-04-12 Silverbrook Research Pty Ltd Printhead having nozzle arrangements with magnetic paddle actuators
US7914114B2 (en) 1997-07-15 2011-03-29 Silverbrook Research Pty Ltd Print assembly having high speed printhead
US6916082B2 (en) 1997-07-15 2005-07-12 Silverbrook Research Pty Ltd Printing mechanism for a wide format pagewidth inkjet printer
US6918707B2 (en) 1997-07-15 2005-07-19 Silverbrook Research Pty Ltd Keyboard printer print media transport assembly
US6921221B2 (en) 1997-07-15 2005-07-26 Silverbrook Research Pty Ltd Combination keyboard and printer apparatus
US6923583B2 (en) 1997-07-15 2005-08-02 Silverbrook Research Pty Ltd Computer Keyboard with integral printer
US6927786B2 (en) 1997-07-15 2005-08-09 Silverbrook Research Pty Ltd Ink jet nozzle with thermally operable linear expansion actuation mechanism
US6929352B2 (en) 1997-07-15 2005-08-16 Silverbrook Research Pty Ltd Inkjet printhead chip for use with a pulsating pressure ink supply
US6932459B2 (en) 1997-07-15 2005-08-23 Silverbrook Research Pty Ltd Ink jet printhead
US6935724B2 (en) 1997-07-15 2005-08-30 Silverbrook Research Pty Ltd Ink jet nozzle having actuator with anchor positioned between nozzle chamber and actuator connection point
US6948799B2 (en) 1997-07-15 2005-09-27 Silverbrook Research Pty Ltd Micro-electromechanical fluid ejecting device that incorporates a covering formation for a micro-electromechanical actuator
US6953295B2 (en) 1997-07-15 2005-10-11 Silverbrook Research Pty Ltd Small footprint computer system
US7914122B2 (en) 1997-07-15 2011-03-29 Kia Silverbrook Inkjet printhead nozzle arrangement with movement transfer mechanism
US7914118B2 (en) 1997-07-15 2011-03-29 Silverbrook Research Pty Ltd Integrated circuit (IC) incorporating rows of proximal ink ejection ports
US7901049B2 (en) 1997-07-15 2011-03-08 Kia Silverbrook Inkjet printhead having proportional ejection ports and arms
US6976751B2 (en) 1997-07-15 2005-12-20 Silverbrook Research Pty Ltd Motion transmitting structure
US7901041B2 (en) 1997-07-15 2011-03-08 Silverbrook Research Pty Ltd Nozzle arrangement with an actuator having iris vanes
US7891767B2 (en) 1997-07-15 2011-02-22 Silverbrook Research Pty Ltd Modular self-capping wide format print assembly
US6986613B2 (en) 1997-07-15 2006-01-17 Silverbrook Research Pty Ltd Keyboard
US6988788B2 (en) 1997-07-15 2006-01-24 Silverbrook Research Pty Ltd Ink jet printhead chip with planar actuators
US6988841B2 (en) 1997-07-15 2006-01-24 Silverbrook Research Pty Ltd. Pagewidth printer that includes a computer-connectable keyboard
US6994420B2 (en) 1997-07-15 2006-02-07 Silverbrook Research Pty Ltd Print assembly for a wide format pagewidth inkjet printer, having a plurality of printhead chips
US7004566B2 (en) 1997-07-15 2006-02-28 Silverbrook Research Pty Ltd Inkjet printhead chip that incorporates micro-mechanical lever mechanisms
US7008041B2 (en) 1997-07-15 2006-03-07 Silverbrook Research Pty Ltd Printing mechanism having elongate modular structure
US7008046B2 (en) 1997-07-15 2006-03-07 Silverbrook Research Pty Ltd Micro-electromechanical liquid ejection device
US7011390B2 (en) 1997-07-15 2006-03-14 Silverbrook Research Pty Ltd Printing mechanism having wide format printing zone
US7022250B2 (en) 1997-07-15 2006-04-04 Silverbrook Research Pty Ltd Method of fabricating an ink jet printhead chip with differential expansion actuators
US7032998B2 (en) 1997-07-15 2006-04-25 Silverbrook Research Pty Ltd Ink jet printhead chip that incorporates through-wafer ink ejection mechanisms
US7040738B2 (en) 1997-07-15 2006-05-09 Silverbrook Research Pty Ltd Printhead chip that incorporates micro-mechanical translating mechanisms
US7044584B2 (en) 1997-07-15 2006-05-16 Silverbrook Research Pty Ltd Wide format pagewidth inkjet printer
US7055933B2 (en) 1997-07-15 2006-06-06 Silverbrook Research Pty Ltd MEMS device having formations for covering actuators of the device
US7055935B2 (en) 1997-07-15 2006-06-06 Silverbrook Research Pty Ltd Ink ejection devices within an inkjet printer
US7055934B2 (en) 1997-07-15 2006-06-06 Silverbrook Research Pty Ltd Inkjet nozzle comprising a motion-transmitting structure
US7066578B2 (en) 1997-07-15 2006-06-27 Silverbrook Research Pty Ltd Inkjet printhead having compact inkjet nozzles
US7066574B2 (en) 1997-07-15 2006-06-27 Silverbrook Research Pty Ltd Micro-electromechanical device having a laminated thermal bend actuator
US7067067B2 (en) 1997-07-15 2006-06-27 Silverbrook Research Pty Ltd Method of fabricating an ink jet printhead chip with active and passive nozzle chamber structures
US7077588B2 (en) 1997-07-15 2006-07-18 Silverbrook Research Pty Ltd Printer and keyboard combination
US7083261B2 (en) 1997-07-15 2006-08-01 Silverbrook Research Pty Ltd Printer incorporating a microelectromechanical printhead
US7083263B2 (en) 1997-07-15 2006-08-01 Silverbrook Research Pty Ltd Micro-electromechanical fluid ejection device with actuator guide formations
US7083264B2 (en) 1997-07-15 2006-08-01 Silverbrook Research Pty Ltd Micro-electromechanical liquid ejection device with motion amplification
US7086709B2 (en) 1997-07-15 2006-08-08 Silverbrook Research Pty Ltd Print engine controller for high volume pagewidth printing
US7891779B2 (en) 1997-07-15 2011-02-22 Silverbrook Research Pty Ltd Inkjet printhead with nozzle layer defining etchant holes
US7866797B2 (en) 1997-07-15 2011-01-11 Silverbrook Research Pty Ltd Inkjet printhead integrated circuit
US7097285B2 (en) 1997-07-15 2006-08-29 Silverbrook Research Pty Ltd Printhead chip incorporating electro-magnetically operable ink ejection mechanisms
US7101023B2 (en) 1997-07-15 2006-09-05 Silverbrook Research Pty Ltd Inkjet printhead having multiple-sectioned nozzle actuators
US7850282B2 (en) 1997-07-15 2010-12-14 Silverbrook Research Pty Ltd Nozzle arrangement for an inkjet printhead having dynamic and static structures to facilitate ink ejection
US7802871B2 (en) 1997-07-15 2010-09-28 Silverbrook Research Pty Ltd Ink jet printhead with amorphous ceramic chamber
US7111925B2 (en) 1997-07-15 2006-09-26 Silverbrook Research Pty Ltd Inkjet printhead integrated circuit
US7131715B2 (en) 1997-07-15 2006-11-07 Silverbrook Research Pty Ltd Printhead chip that incorporates micro-mechanical lever mechanisms
US7794053B2 (en) 1997-07-15 2010-09-14 Silverbrook Research Pty Ltd Inkjet printhead with high nozzle area density
US7137686B2 (en) 1997-07-15 2006-11-21 Silverbrook Research Pty Ltd Inkjet printhead having inkjet nozzle arrangements incorporating lever mechanisms
US7784902B2 (en) 1997-07-15 2010-08-31 Silverbrook Research Pty Ltd Printhead integrated circuit with more than 10000 nozzles
US7140719B2 (en) 1997-07-15 2006-11-28 Silverbrook Research Pty Ltd Actuator for a micro-electromechanical valve assembly
US7780269B2 (en) 1997-07-15 2010-08-24 Silverbrook Research Pty Ltd Ink jet nozzle assembly having layered ejection actuator
US7144098B2 (en) 1997-07-15 2006-12-05 Silverbrook Research Pty Ltd Printer having a printhead with an inkjet printhead chip for use with a pulsating pressure ink supply
US7147305B2 (en) 1997-07-15 2006-12-12 Silverbrook Research Pty Ltd Printer formed from integrated circuit printhead
US7147302B2 (en) 1997-07-15 2006-12-12 Silverbrook Researh Pty Ltd Nozzle assembly
US7771017B2 (en) 1997-07-15 2010-08-10 Silverbrook Research Pty Ltd Nozzle arrangement for an inkjet printhead incorporating a protective structure
US7147791B2 (en) 1997-07-15 2006-12-12 Silverbrook Research Pty Ltd Method of fabricating an injket printhead chip for use with a pulsating pressure ink supply
US7152949B2 (en) 1997-07-15 2006-12-26 Silverbrook Research Pty Ltd Wide-format print engine with a pagewidth ink reservoir assembly
US7152960B2 (en) 1997-07-15 2006-12-26 Silverbrook Research Pty Ltd Micro-electromechanical valve having transformable valve actuator
US7753463B2 (en) 1997-07-15 2010-07-13 Silverbrook Research Pty Ltd Processing of images for high volume pagewidth printing
US7717543B2 (en) 1997-07-15 2010-05-18 Silverbrook Research Pty Ltd Printhead including a looped heater element
US7284834B2 (en) 1997-07-15 2007-10-23 Silverbrook Research Pty Ltd Closure member for an ink passage in an ink jet printhead
US7159965B2 (en) 1997-07-15 2007-01-09 Silverbrook Research Pty Ltd Wide format printer with a plurality of printhead integrated circuits
US7712872B2 (en) 1997-07-15 2010-05-11 Silverbrook Research Pty Ltd Inkjet nozzle arrangement with a stacked capacitive actuator
US7172265B2 (en) 1997-07-15 2007-02-06 Silverbrook Research Pty Ltd Print assembly for a wide format printer
US7669970B2 (en) 1997-07-15 2010-03-02 Silverbrook Research Pty Ltd Ink nozzle unit exploiting magnetic fields
US7641315B2 (en) 1997-07-15 2010-01-05 Silverbrook Research Pty Ltd Printhead with reciprocating cantilevered thermal actuators
US7182435B2 (en) 1997-07-15 2007-02-27 Silverbrook Research Pty Ltd Printhead chip incorporating laterally displaceable ink flow control mechanisms
US7641314B2 (en) 1997-07-15 2010-01-05 Silverbrook Research Pty Ltd Printhead micro-electromechanical nozzle arrangement with a motion-transmitting structure
US7637595B2 (en) 1997-07-15 2009-12-29 Silverbrook Research Pty Ltd Nozzle arrangement for an inkjet printhead having an ejection actuator and a refill actuator
US7628471B2 (en) 1997-07-15 2009-12-08 Silverbrook Research Pty Ltd Inkjet heater with heater element supported by sloped sides with less resistance
US7195339B2 (en) 1997-07-15 2007-03-27 Silverbrook Research Pty Ltd Ink jet nozzle assembly with a thermal bend actuator
US7201471B2 (en) 1997-07-15 2007-04-10 Silverbrook Research Pty Ltd MEMS device with movement amplifying actuator
US7611227B2 (en) 1997-07-15 2009-11-03 Silverbrook Research Pty Ltd Nozzle arrangement for a printhead integrated circuit
US7207654B2 (en) 1997-07-15 2007-04-24 Silverbrook Research Pty Ltd Ink jet with narrow chamber
US7216957B2 (en) 1997-07-15 2007-05-15 Silverbrook Research Pty Ltd Micro-electromechanical ink ejection mechanism that incorporates lever actuation
US7217048B2 (en) 1997-07-15 2007-05-15 Silverbrook Research Pty Ltd Pagewidth printer and computer keyboard combination
US7226145B2 (en) 1997-07-15 2007-06-05 Silverbrook Research Pty Ltd Micro-electromechanical valve shutter assembly
US7240992B2 (en) 1997-07-15 2007-07-10 Silverbrook Research Pty Ltd Ink jet printhead incorporating a plurality of nozzle arrangement having backflow prevention mechanisms
US7246881B2 (en) 1997-07-15 2007-07-24 Silverbrook Research Pty Ltd Printhead assembly arrangement for a wide format pagewidth inkjet printer
US7246883B2 (en) 1997-07-15 2007-07-24 Silverbrook Research Pty Ltd Motion transmitting structure for a nozzle arrangement of a printhead chip for an inkjet printhead
US7246884B2 (en) 1997-07-15 2007-07-24 Silverbrook Research Pty Ltd Inkjet printhead having enclosed inkjet actuators
US7252367B2 (en) 1997-07-15 2007-08-07 Silverbrook Research Pty Ltd Inkjet printhead having paddled inkjet nozzles
US7252366B2 (en) 1997-07-15 2007-08-07 Silverbrook Research Pty Ltd Inkjet printhead with high nozzle area density
US7258425B2 (en) 1997-07-15 2007-08-21 Silverbrook Research Pty Ltd Printhead incorporating leveraged micro-electromechanical actuation
US7261392B2 (en) 1997-07-15 2007-08-28 Silverbrook Research Pty Ltd Printhead chip that incorporates pivotal micro-mechanical ink ejecting mechanisms
US7267424B2 (en) 1997-07-15 2007-09-11 Silverbrook Research Pty Ltd Wide format pagewidth printer
US7270399B2 (en) 1997-07-15 2007-09-18 Silverbrook Research Pty Ltd Printhead for use with a pulsating pressure ink supply
US7270492B2 (en) 1997-07-15 2007-09-18 Silverbrook Research Pty Ltd Computer system having integrated printer and keyboard
US7275811B2 (en) 1997-07-15 2007-10-02 Silverbrook Research Pty Ltd High nozzle density inkjet printhead
US7278711B2 (en) 1997-07-15 2007-10-09 Silverbrook Research Pty Ltd Nozzle arrangement incorporating a lever based ink displacement mechanism
US7278712B2 (en) 1997-07-15 2007-10-09 Silverbrook Research Pty Ltd Nozzle arrangement with an ink ejecting displaceable roof structure
US7278796B2 (en) 1997-07-15 2007-10-09 Silverbrook Research Pty Ltd Keyboard for a computer system
US7607756B2 (en) 1997-07-15 2009-10-27 Silverbrook Research Pty Ltd Printhead assembly for a wallpaper printer
US7591534B2 (en) 1997-07-15 2009-09-22 Silverbrook Research Pty Ltd Wide format print assembly having CMOS drive circuitry
US7588316B2 (en) 1997-07-15 2009-09-15 Silverbrook Research Pty Ltd Wide format print assembly having high resolution printhead
US7287836B2 (en) 1997-07-15 2007-10-30 Sil;Verbrook Research Pty Ltd Ink jet printhead with circular cross section chamber
US6848780B2 (en) 1997-07-15 2005-02-01 Sivlerbrook Research Pty Ltd Printing mechanism for a wide format pagewidth inkjet printer
US7287827B2 (en) 1997-07-15 2007-10-30 Silverbrook Research Pty Ltd Printhead incorporating a two dimensional array of ink ejection ports
US7290856B2 (en) 1997-07-15 2007-11-06 Silverbrook Research Pty Ltd Inkjet print assembly for high volume pagewidth printing
US7585050B2 (en) 1997-07-15 2009-09-08 Silverbrook Research Pty Ltd Print assembly and printer having wide printing zone
US7303254B2 (en) 1997-07-15 2007-12-04 Silverbrook Research Pty Ltd Print assembly for a wide format pagewidth printer
US7322679B2 (en) 1997-07-15 2008-01-29 Silverbrook Research Pty Ltd Inkjet nozzle arrangement with thermal bend actuator capable of differential thermal expansion
US7581816B2 (en) 1997-07-15 2009-09-01 Silverbrook Research Pty Ltd Nozzle arrangement with a pivotal wall coupled to a thermal expansion actuator
US7325918B2 (en) 1997-07-15 2008-02-05 Silverbrook Research Pty Ltd Print media transport assembly
US7571983B2 (en) 1997-07-15 2009-08-11 Silverbrook Research Pty Ltd Wide-format printer with a pagewidth printhead assembly
US7566114B2 (en) 1997-07-15 2009-07-28 Silverbrook Research Pty Ltd Inkjet printer with a pagewidth printhead having nozzle arrangements with an actuating arm having particular dimension proportions
US7337532B2 (en) 1997-07-15 2008-03-04 Silverbrook Research Pty Ltd Method of manufacturing micro-electromechanical device having motion-transmitting structure
US7341672B2 (en) 1997-07-15 2008-03-11 Silverbrook Research Pty Ltd Method of fabricating printhead for ejecting ink supplied under pulsed pressure
US7347952B2 (en) 1997-07-15 2008-03-25 Balmain, New South Wales, Australia Method of fabricating an ink jet printhead
US7556355B2 (en) 1997-07-15 2009-07-07 Silverbrook Research Pty Ltd Inkjet nozzle arrangement with electro-thermally actuated lever arm
US7357488B2 (en) 1997-07-15 2008-04-15 Silverbrook Research Pty Ltd Nozzle assembly incorporating a shuttered actuation mechanism
US7360872B2 (en) 1997-07-15 2008-04-22 Silverbrook Research Pty Ltd Inkjet printhead chip with nozzle assemblies incorporating fluidic seals
US7364271B2 (en) 1997-07-15 2008-04-29 Silverbrook Research Pty Ltd Nozzle arrangement with inlet covering cantilevered actuator
US7367729B2 (en) 1997-07-15 2008-05-06 Silverbrook Research Pty Ltd Printer within a computer keyboard
US7556356B1 (en) 1997-07-15 2009-07-07 Silverbrook Research Pty Ltd Inkjet printhead integrated circuit with ink spread prevention
US7381340B2 (en) 1997-07-15 2008-06-03 Silverbrook Research Pty Ltd Ink jet printhead that incorporates an etch stop layer
US7549732B2 (en) 1997-07-15 2009-06-23 Silverbrook Research Pty Ltd Printhead having nozzle arrangements with sealing structures
US7387364B2 (en) 1997-07-15 2008-06-17 Silverbrook Research Pty Ltd Ink jet nozzle arrangement with static and dynamic structures
US7549728B2 (en) 1997-07-15 2009-06-23 Silverbrook Research Pty Ltd Micro-electromechanical ink ejection mechanism utilizing through-wafer ink ejection
US7401901B2 (en) 1997-07-15 2008-07-22 Silverbrook Research Pty Ltd Inkjet printhead having nozzle plate supported by encapsulated photoresist
US7401902B2 (en) 1997-07-15 2008-07-22 Silverbrook Research Pty Ltd Inkjet nozzle arrangement incorporating a thermal bend actuator with an ink ejection paddle
US7537301B2 (en) 1997-07-15 2009-05-26 Silverbrook Research Pty Ltd. Wide format print assembly having high speed printhead
US7407261B2 (en) 1997-07-15 2008-08-05 Silverbrook Research Pty Ltd Image processing apparatus for a printing mechanism of a wide format pagewidth inkjet printer
US7524026B2 (en) 1997-07-15 2009-04-28 Silverbrook Research Pty Ltd Nozzle assembly with heat deflected actuator
US7431429B2 (en) 1997-07-15 2008-10-07 Silverbrook Research Pty Ltd Printhead integrated circuit with planar actuators
US7431446B2 (en) 1997-07-15 2008-10-07 Silverbrook Research Pty Ltd Web printing system having media cartridge carousel
US7434915B2 (en) 1997-07-15 2008-10-14 Silverbrook Research Pty Ltd Inkjet printhead chip with a side-by-side nozzle arrangement layout
US7517164B2 (en) 1997-07-15 2009-04-14 Silverbrook Research Pty Ltd Computer keyboard with a planar member and endless belt feed mechanism
US7461924B2 (en) 1997-07-15 2008-12-09 Silverbrook Research Pty Ltd Printhead having inkjet actuators with contractible chambers
US7461923B2 (en) 1997-07-15 2008-12-09 Silverbrook Research Pty Ltd Inkjet printhead having inkjet nozzle arrangements incorporating dynamic and static nozzle parts
US7465030B2 (en) 1997-07-15 2008-12-16 Silverbrook Research Pty Ltd Nozzle arrangement with a magnetic field generator
US7517057B2 (en) 1997-07-15 2009-04-14 Silverbrook Research Pty Ltd Nozzle arrangement for an inkjet printhead that incorporates a movement transfer mechanism
US7465027B2 (en) 1997-07-15 2008-12-16 Silverbrook Research Pty Ltd Nozzle arrangement for a printhead integrated circuit incorporating a lever mechanism
US7465026B2 (en) 1997-07-15 2008-12-16 Silverbrook Research Pty Ltd Nozzle arrangement with thermally operated ink ejection piston
US7468139B2 (en) 1997-07-15 2008-12-23 Silverbrook Research Pty Ltd Method of depositing heater material over a photoresist scaffold
US7470003B2 (en) 1997-07-15 2008-12-30 Silverbrook Research Pty Ltd Ink jet printhead with active and passive nozzle chamber structures arrayed on a substrate
US7506961B2 (en) 1997-07-15 2009-03-24 Silverbrook Research Pty Ltd Printer with serially arranged printhead modules for wide format printing
US7506969B2 (en) 1997-07-15 2009-03-24 Silverbrook Research Pty Ltd Ink jet nozzle assembly with linearly constrained actuator
US7506965B2 (en) 1997-07-15 2009-03-24 Silverbrook Research Pty Ltd Inkjet printhead integrated circuit with work transmitting structures
KR19990069797A (en) * 1998-02-13 1999-09-06 이형도 Droplet ejector on the printhead
KR19990070319A (en) * 1998-02-19 1999-09-15 이형도 Droplet ejector on the printhead
US7481518B2 (en) 1998-03-25 2009-01-27 Silverbrook Research Pty Ltd Ink jet printhead integrated circuit with surface-processed thermal actuators
US7753490B2 (en) 1998-06-08 2010-07-13 Silverbrook Research Pty Ltd Printhead with ejection orifice in flexible element
US7413671B2 (en) 1998-06-09 2008-08-19 Silverbrook Research Pty Ltd Method of fabricating a printhead integrated circuit with a nozzle chamber in a wafer substrate
US7284838B2 (en) 1998-06-09 2007-10-23 Silverbrook Research Pty Ltd Nozzle arrangement for an inkjet printing device with volumetric ink ejection
US7942507B2 (en) 1998-06-09 2011-05-17 Silverbrook Research Pty Ltd Ink jet nozzle arrangement with a segmented actuator nozzle chamber cover
US7399063B2 (en) 1998-06-09 2008-07-15 Silverbrook Research Pty Ltd Micro-electromechanical fluid ejection device with through-wafer inlets and nozzle chambers
US7381342B2 (en) 1998-06-09 2008-06-03 Silverbrook Research Pty Ltd Method for manufacturing an inkjet nozzle that incorporates heater actuator arms
US7374695B2 (en) 1998-06-09 2008-05-20 Silverbrook Research Pty Ltd Method of manufacturing an inkjet nozzle assembly for volumetric ink ejection
US7347536B2 (en) 1998-06-09 2008-03-25 Silverbrook Research Pty Ltd Ink printhead nozzle arrangement with volumetric reduction actuators
US7465029B2 (en) 1998-06-09 2008-12-16 Silverbrook Research Pty Ltd Radially actuated micro-electromechanical nozzle arrangement
US7334877B2 (en) 1998-06-09 2008-02-26 Silverbrook Research Pty Ltd. Nozzle for ejecting ink
US7168789B2 (en) 1998-06-09 2007-01-30 Silverbrook Research Pty Ltd Printer with ink printhead nozzle arrangement having thermal bend actuator
US7568790B2 (en) 1998-06-09 2009-08-04 Silverbrook Research Pty Ltd Printhead integrated circuit with an ink ejecting surface
US7708386B2 (en) 1998-06-09 2010-05-04 Silverbrook Research Pty Ltd Inkjet nozzle arrangement having interleaved heater elements
US7326357B2 (en) 1998-06-09 2008-02-05 Silverbrook Research Pty Ltd Method of fabricating printhead IC to have displaceable inkjets
US7156495B2 (en) 1998-06-09 2007-01-02 Silverbrook Research Pty Ltd Ink jet printhead having nozzle arrangement with flexible wall actuator
US7325904B2 (en) 1998-06-09 2008-02-05 Silverbrook Research Pty Ltd Printhead having multiple thermal actuators for ink ejection
US7931353B2 (en) 1998-06-09 2011-04-26 Silverbrook Research Pty Ltd Nozzle arrangement using unevenly heated thermal actuators
US7156494B2 (en) 1998-06-09 2007-01-02 Silverbrook Research Pty Ltd Inkjet printhead chip with volume-reduction actuation
US7284833B2 (en) 1998-06-09 2007-10-23 Silverbrook Research Pty Ltd Fluid ejection chip that incorporates wall-mounted actuators
US7604323B2 (en) 1998-06-09 2009-10-20 Silverbrook Research Pty Ltd Printhead nozzle arrangement with a roof structure having a nozzle rim supported by a series of struts
US7284326B2 (en) 1998-06-09 2007-10-23 Silverbrook Research Pty Ltd Method for manufacturing a micro-electromechanical nozzle arrangement on a substrate with an integrated drive circutry layer
US7204582B2 (en) 1998-06-09 2007-04-17 Silverbrook Research Pty Ltd. Ink jet nozzle with multiple actuators for reducing chamber volume
US7192120B2 (en) 1998-06-09 2007-03-20 Silverbrook Research Pty Ltd Ink printhead nozzle arrangement with thermal bend actuator
US6886918B2 (en) 1998-06-09 2005-05-03 Silverbrook Research Pty Ltd Ink jet printhead with moveable ejection nozzles
US7637594B2 (en) 1998-06-09 2009-12-29 Silverbrook Research Pty Ltd Ink jet nozzle arrangement with a segmented actuator nozzle chamber cover
US7188933B2 (en) 1998-06-09 2007-03-13 Silverbrook Research Pty Ltd Printhead chip that incorporates nozzle chamber reduction mechanisms
US7182436B2 (en) 1998-06-09 2007-02-27 Silverbrook Research Pty Ltd Ink jet printhead chip with volumetric ink ejection mechanisms
US7179395B2 (en) 1998-06-09 2007-02-20 Silverbrook Research Pty Ltd Method of fabricating an ink jet printhead chip having actuator mechanisms located about ejection ports
US7922296B2 (en) 1998-06-09 2011-04-12 Silverbrook Research Pty Ltd Method of operating a nozzle chamber having radially positioned actuators
US7669973B2 (en) 1998-06-09 2010-03-02 Silverbrook Research Pty Ltd Printhead having nozzle arrangements with radial actuators
US7156498B2 (en) 1998-06-09 2007-01-02 Silverbrook Research Pty Ltd Inkjet nozzle that incorporates volume-reduction actuation
US7438391B2 (en) 1998-06-09 2008-10-21 Silverbrook Research Pty Ltd Micro-electromechanical nozzle arrangement with non-wicking roof structure for an inkjet printhead
US7520593B2 (en) 1998-06-09 2009-04-21 Silverbrook Research Pty Ltd Nozzle arrangement for an inkjet printhead chip that incorporates a nozzle chamber reduction mechanism
US7562967B2 (en) 1998-06-09 2009-07-21 Silverbrook Research Pty Ltd Printhead with a two-dimensional array of reciprocating ink nozzles
US6886917B2 (en) 1998-06-09 2005-05-03 Silverbrook Research Pty Ltd Inkjet printhead nozzle with ribbed wall actuator
US7533967B2 (en) 1998-06-09 2009-05-19 Silverbrook Research Pty Ltd Nozzle arrangement for an inkjet printer with multiple actuator devices
US7758161B2 (en) 1998-06-09 2010-07-20 Silverbrook Research Pty Ltd Micro-electromechanical nozzle arrangement having cantilevered actuators
US6959982B2 (en) 1998-06-09 2005-11-01 Silverbrook Research Pty Ltd Flexible wall driven inkjet printhead nozzle
US7147303B2 (en) 1998-06-09 2006-12-12 Silverbrook Research Pty Ltd Inkjet printing device that includes nozzles with volumetric ink ejection mechanisms
US6959981B2 (en) 1998-06-09 2005-11-01 Silverbrook Research Pty Ltd Inkjet printhead nozzle having wall actuator
US7140720B2 (en) 1998-06-09 2006-11-28 Silverbrook Research Pty Ltd Micro-electromechanical fluid ejection device having actuator mechanisms located in chamber roof structure
US7131717B2 (en) 1998-06-09 2006-11-07 Silverbrook Research Pty Ltd Printhead integrated circuit having ink ejecting thermal actuators
US6966633B2 (en) 1998-06-09 2005-11-22 Silverbrook Research Pty Ltd Ink jet printhead chip having an actuator mechanisms located about ejection ports
US6979075B2 (en) 1998-06-09 2005-12-27 Silverbrook Research Pty Ltd Micro-electromechanical fluid ejection device having nozzle chambers with diverging walls
US7104631B2 (en) 1998-06-09 2006-09-12 Silverbrook Research Pty Ltd Printhead integrated circuit comprising inkjet nozzles having moveable roof actuators
US7901055B2 (en) 1998-06-09 2011-03-08 Silverbrook Research Pty Ltd Printhead having plural fluid ejection heating elements
US7857426B2 (en) 1998-06-09 2010-12-28 Silverbrook Research Pty Ltd Micro-electromechanical nozzle arrangement with a roof structure for minimizing wicking
US7093928B2 (en) 1998-06-09 2006-08-22 Silverbrook Research Pty Ltd Printer with printhead having moveable ejection port
US7086721B2 (en) 1998-06-09 2006-08-08 Silverbrook Research Pty Ltd Moveable ejection nozzles in an inkjet printhead
US6981757B2 (en) 1998-06-09 2006-01-03 Silverbrook Research Pty Ltd Symmetric ink jet apparatus
US7111924B2 (en) 1998-10-16 2006-09-26 Silverbrook Research Pty Ltd Inkjet printhead having thermal bend actuator heating element electrically isolated from nozzle chamber ink
US7144519B2 (en) 1998-10-16 2006-12-05 Silverbrook Research Pty Ltd Method of fabricating an inkjet printhead chip having laminated actuators
US7854500B2 (en) 1998-11-09 2010-12-21 Silverbrook Research Pty Ltd Tamper proof print cartridge for a video game console
KR100374591B1 (en) * 1998-12-30 2003-03-03 삼성전자주식회사 Printer head using shape memory alloy and method for manufacturing the same
KR100385969B1 (en) * 1999-07-13 2003-06-02 삼성전자주식회사 Micro actuator for ink jet printer head using multi-layer shape memory alloy and fabricating method thereof
KR100359107B1 (en) * 1999-07-23 2002-11-04 삼성전자 주식회사 A method for manufacturing actuator of inkjet printhead
US7942504B2 (en) 2000-05-23 2011-05-17 Silverbrook Research Pty Ltd Variable-volume nozzle arrangement
US7571988B2 (en) 2000-05-23 2009-08-11 Silverbrook Research Pty Ltd Variable-volume nozzle arrangement
US7758142B2 (en) 2002-04-12 2010-07-20 Silverbrook Research Pty Ltd High volume pagewidth printing
US7832837B2 (en) 2002-04-12 2010-11-16 Silverbrook Research Pty Ltd Print assembly and printer having wide printing zone
US7631957B2 (en) 2002-04-12 2009-12-15 Silverbrook Research Pty Ltd Pusher actuation in a printhead chip for an inkjet printhead
US8011754B2 (en) 2002-04-12 2011-09-06 Silverbrook Research Pty Ltd Wide format pagewidth inkjet printer
US8109611B2 (en) 2002-04-26 2012-02-07 Silverbrook Research Pty Ltd Translation to rotation conversion in an inkjet printhead
US7303262B2 (en) 2002-06-28 2007-12-04 Silverbrook Research Pty Ltd Ink jet printhead chip with predetermined micro-electromechanical systems height
US7175260B2 (en) 2002-06-28 2007-02-13 Silverbrook Research Pty Ltd Ink jet nozzle arrangement configuration
US7407269B2 (en) 2002-06-28 2008-08-05 Silverbrook Research Pty Ltd Ink jet nozzle assembly including displaceable ink pusher
US7753486B2 (en) 2002-06-28 2010-07-13 Silverbrook Research Pty Ltd Inkjet printhead having nozzle arrangements with hydrophobically treated actuators and nozzles
US6834939B2 (en) 2002-11-23 2004-12-28 Silverbrook Research Pty Ltd Micro-electromechanical device that incorporates covering formations for actuators of the device

Also Published As

Publication number Publication date
JP2615319B2 (en) 1997-05-28

Similar Documents

Publication Publication Date Title
JP2615319B2 (en) Inkjet head
JPH0691865A (en) Ink jet head
US6629741B1 (en) Ink jet recording head drive method and ink jet recording apparatus
JP3223892B2 (en) Ink jet recording apparatus and ink jet recording method
JP3491187B2 (en) Recording method using ink jet recording apparatus
JP4243340B2 (en) Inkjet recording apparatus, image forming apparatus, head drive control apparatus, head drive control method, and inkjet head
JP5118485B2 (en) Method for driving liquid ejection device and liquid ejection device using the method
JP3250530B2 (en) Ink jet recording head and ink jet recording apparatus
JPS6357251A (en) Ink jet head
JP2006166529A (en) Piezoelectric actuator, liquid ejector employing it, and its driving method
JP4777639B2 (en) Piezoelectric actuator, method for regenerating the same, and liquid ejection device
JP2004017658A (en) Fluid controlling device
JP4580201B2 (en) Piezoelectric element regeneration method and liquid ejection device
JP3250332B2 (en) Inkjet head
JP2005035295A (en) Driving method for piezoelectric ink jet head
JP2927764B2 (en) Printer head recording liquid ejecting apparatus and method
JP4539295B2 (en) Inkjet recording head and inkjet recording apparatus
JP5058501B2 (en) Piezoelectric inkjet printer
JP2927765B2 (en) Printer head recording liquid ejecting apparatus and method
JP2005001104A (en) Micro-actuator and fluid transferring device using the same
JP3425113B2 (en) Ink jet head and ink jet recording apparatus
JP5315540B2 (en) Inkjet recording device
JP3522267B2 (en) Recording method using ink jet recording apparatus and recording head suitable for the recording method
EP1717035B1 (en) Printing method and printer suitable for applying said method
JP3228338B2 (en) Ink jet head and vibrator unit suitable for the same

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees