JPS5836457A - inkjet head pump - Google Patents
inkjet head pumpInfo
- Publication number
- JPS5836457A JPS5836457A JP13290681A JP13290681A JPS5836457A JP S5836457 A JPS5836457 A JP S5836457A JP 13290681 A JP13290681 A JP 13290681A JP 13290681 A JP13290681 A JP 13290681A JP S5836457 A JPS5836457 A JP S5836457A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- pump
- ink
- air intake
- inkjet 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
- 239000012530 fluid Substances 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 description 13
- 238000001704 evaporation Methods 0.000 description 13
- 230000002265 prevention Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17596—Ink pumps, ink valves
Landscapes
- Ink Jet (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、インクジェットプリンターに係り、特にヘッ
ドにインクを補給する為のポンプの溝造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inkjet printer, and particularly to a groove structure of a pump for replenishing ink to a head.
インクジェットヘッドは、近年急速に開発が進み実用化
されているものもあるが、取り扱い性。Inkjet heads have been rapidly developed in recent years and some have been put into practical use, but handling is difficult.
コスト面等を含み大衆製品化する為にはさらに努力が必
要である。特に、液体を使用している事からヘッドのノ
ズルの目詰り、気泡の混入等致命的な欠点も多い。一般
的には、前記欠点を防ぐ手段としてポンプを用いるが、
構造が複雑でコスト的にも高いものどなっている。Further efforts are required to commercialize the product for the masses, including cost considerations. In particular, since liquid is used, there are many fatal drawbacks such as clogging of the head nozzle and the inclusion of air bubbles. Generally, a pump is used as a means to prevent the above drawbacks, but
The structure is complicated and the cost is high.
本発明は、普及型のインクジェットを可能にする為のポ
ンプであり、実施例にて説明する。The present invention is a pump for making popular inkjet possible, and will be explained in Examples.
第１図は弁付きのポンプであり、インクジェットヘッド
１Ｆｉ、圧力室５と振動板１３と圧力室５に対向する位
置の振動板１５上にＰＺτ２が接着され、ノズル４より
インクを噴射する。インク７は、インク供給口５ヘタン
ク６より供給される。FIG. 1 shows a pump with a valve, in which an inkjet head 1Fi, a pressure chamber 5, a diaphragm 13, and a PZτ2 are bonded on the diaphragm 15 at a position facing the pressure chamber 5, and ink is ejected from a nozzle 4. Ink 7 is supplied from tank 6 to ink supply port 5 .
タンク６はポンプ１１と結合しており、弁９が連結穴部
に付いている。ポンプ１１も弁１０が付いており、指１
２で押し穴場合弁１０は閉じ、弁９に開く。逆に、指１
２を離した時弁１０は開き、弁９は閉じ、タンク６内の
空気８を加圧し、タンク６内のインク７をインクジェッ
トヘッド１に送る。この方法は、弁を必要とする為に、
弁の製造。The tank 6 is connected to a pump 11, and a valve 9 is attached to the connecting hole. The pump 11 is also equipped with a valve 10, and the finger 1
In the case of a push hole at 2, valve 10 is closed and valve 9 is open. On the other hand, finger 1
When 2 is released, the valve 10 opens and the valve 9 closes, pressurizing the air 8 in the tank 6 and sending the ink 7 in the tank 6 to the inkjet head 1. This method requires a valve, so
Manufacture of valves.
製作等でコストが上がる。又、タンク６内に圧力が残っ
ている限り、インクをインクジェットヘッド１に送りイ
ンクのむだ使いとなる。タンク６内のインクは、弁部分
より蒸発してインクを消費してしまう事も問題である。Manufacturing costs will increase. Further, as long as pressure remains in the tank 6, ink is sent to the inkjet head 1, resulting in wasted ink. Another problem is that the ink in the tank 6 evaporates from the valve portion and is consumed.
第２図（、） 、 （ｂ）は、本発明による一実施例で
ある。FIGS. 2(a) and 2(b) show an embodiment according to the present invention.
タンク６、インク７、空気８は第１図の説明の如くであ
るが、タンク６とポンプ１４は、使用時は密着（１６）
されており、タンク６とポンプ１４の連結部は、タンク
内のインクを蒸発させないような、細い穴径となってい
る蒸発防止用空気取り入れ口１５により連結されている
。この穴は、本実施例では径が５０〜２００μｍ、長さ
が１０〜１００１１Ｂのものであり、タンク６の材質と
同じ材料で製造されている。また、ステンレスパイプ等
の如きインクの成分を蒸発させない金属、セラミック、
あるいは有機材料であっても、タンク６の材料よりも水
蒸気透過率が低い材料でＩＩＩＩＩ成すればよい。蒸発
防止用空気取り入れ口１５は径が５０〜２００１１ ｎ
＜ 、長さ１０〜１ｏｏｌｌｌとしたが、空気の拡散ス
ピード、流体抵抗等を考慮すると、径はなるべく小さく
長い方が良いが、製造方法等と後に説明するポンプの為
の弁効果の流体抵抗、及びタンクの保存条件と保存時間
から適正な条件をきめている。伺、従来の空気取り入れ
穴は、径が１５〜ｉ ａｓ 、長さはα５〜２腸程度で
、本発明の条件とは、目的、効果も含めて異なっている
。動作は指１８によりポンプ１４の外気取り入れ口１７
を閉じて押す事により、蒸発防止用空気取り入れ口１５
より圧空がタンク１４内の空気８を圧縮し、インク７を
出口１９よりヘッドに送る。この場合、外気取り入れ口
１７に′ｉ指１８で押すに最適な大きさであり、蒸発防
止用空気取り入れ口１５に比べると、径は５鰺前後、長
さは１ｓ１１前後と充分太きい。従って指でポンプを押
した時は、ポンプ内の空気を蒸発防止用空気取り入れ口
を介しタンク内に補充し、指を離す事によりポンプ内の
圧力は外気取り入れ口より空気が急激に入り、外圧に等
しくなる。この時、蒸発防止用空気取り入れ口は流体抵
抗が外気取り入れ口より高い為に、タンク内の空気は徐
々に流れ出し、ポンプの繰り返し動作によりタンク内の
圧力は上昇し、タンクの出口１９よりインクをヘッドに
送り出す。この機構の利点は、蒸発防止用空気取り入れ
口をポンプの弁作用に利用する複合機能を持つ事であり
、且つ使用ｖｋＩＩＣ不要となつ九圧縮空気を空気取り
入れ口側からも外部に放出し、インクのむだ使いをなく
す事であり、機構部品が少ないだけ安価で信頼性の高い
ポンプとする事ができる。The tank 6, ink 7, and air 8 are as described in Fig. 1, but the tank 6 and pump 14 are in close contact (16) when in use.
The connection portion between the tank 6 and the pump 14 is connected by an evaporation prevention air intake 15 having a small hole diameter so as not to evaporate the ink in the tank. In this embodiment, this hole has a diameter of 50 to 200 μm, a length of 10 to 10011 B, and is made of the same material as the tank 6. In addition, metals, ceramics, etc. that do not evaporate the ink components, such as stainless steel pipes, etc.
Alternatively, even if it is an organic material, it may be made of a material having a lower water vapor permeability than the material of the tank 6. The evaporation prevention air intake 15 has a diameter of 50 to 20011 n.
The length was set to 10 to 1 ooll, but considering the air diffusion speed, fluid resistance, etc., the diameter should be as small and long as possible, but the manufacturing method and fluid resistance of the valve effect for the pump, which will be explained later, Appropriate conditions are determined based on tank storage conditions and storage time. However, the conventional air intake hole has a diameter of 15 to ias and a length of about 5 to 2, which is different from the conditions of the present invention, including its purpose and effect. The operation is performed by pressing the outside air intake port 17 of the pump 14 with the finger 18.
By closing and pressing the evaporation prevention air intake 15
The compressed air compresses the air 8 in the tank 14 and sends the ink 7 to the head through the outlet 19. In this case, the size is optimal for pushing the external air intake 17 with the finger 18, and compared to the evaporation prevention air intake 15, the diameter is about 5mm and the length is about 1s11, which is sufficiently large. Therefore, when you press the pump with your finger, the air inside the pump is refilled into the tank through the evaporation prevention air intake, and when you release your finger, the pressure inside the pump is reduced by rapidly entering the air from the outside air intake, causing the outside pressure to rise. is equal to At this time, since the fluid resistance of the evaporation prevention air intake is higher than that of the outside air intake, the air in the tank gradually flows out, and the pressure in the tank increases due to the repeated operation of the pump, causing the ink to flow out from the outlet 19 of the tank. Send it to the head. The advantage of this mechanism is that it has a composite function that uses the air intake for preventing evaporation for the valve action of the pump, and also releases compressed air to the outside from the air intake side, making it unnecessary to use vkIIC. This eliminates wasteful use of energy, and the fewer mechanical parts the pump has, the lower the cost and the more reliable it becomes.
ｗＪ５図は、第２図で説明した構造を改良した実施例で
あり、特に構造面で異なる事は、タンク２０であり、タ
ンク２０は、インク蒸発防止及び保護用枠部と、インク
流出防止袋２２で構成され、他は第２図の説明の如くで
ある。この方法は、蒸発防止用空気取り入れ口２１より
インク７の流出を防ぐ為の手段であり、これによりタン
クは持ち運び自由となる。我々は、本発明に於いてタン
ク材料として弾性体を用いているが、有機材料としてポ
リエチレン、ボリグロピレン、塩化ビニル。Figure wJ5 shows an improved embodiment of the structure explained in Figure 2. The difference in structure is the tank 20. The tank 20 has a frame for preventing ink evaporation and protection, and an ink leakage prevention bag. 22, and the rest are as explained in FIG. This method is a means to prevent the ink 7 from flowing out from the evaporation prevention air intake port 21, and thereby the tank can be carried freely. In the present invention, we use an elastic body as the tank material, and the organic materials include polyethylene, polyglopyrene, and vinyl chloride.
ボリカーボ、ＡＢＳ等が好ましく、ゴムｑＮ Ｂ Ｒ。Bolicarbo, ABS, etc. are preferred, and rubber qNBR.
シリコンゴム等である。タンク材としても、ポリエチレ
ン、ポリプロピレン、塩化ビニール、ボリカーボ、ＡＢ
Ｓ等耐インク性があり、成形が容易なものがよい、イン
ク袋は、ポリオレフィン系とナイ”７’Ｊ４積Ｎａフイ
ルム、ホリプロビレン、エバール、ナイロン等の積層フ
ィルムが適しており、厚みは２０〜５０μｍが適してい
る。Silicone rubber, etc. Can also be used as tank material: polyethylene, polypropylene, vinyl chloride, polycarbo, AB
Suitable ink bags are those that are resistant to ink such as S and are easy to mold. Suitable ink bags are laminated films made of polyolefin, Na film, holipropylene, EVAL, nylon, etc., with a thickness of 20 mm. ~50 μm is suitable.
以上本返明は、ポンプの構造として弁を用いず、流体抵
抗の異なるポンプ入力穴とポンプ出力穴により弁効果を
持たせ、簡素化したポンプを供給することであり、同時
にコストの低減を計ることにある。ま友別の効果として
、タンク内のインク蒸発防止を兼ねた外気取り入ね穴を
ポンプの一機構に利用したものであり、ポンプとインク
蒸発防止穴との複合効果を持たせたことである。更に別
の効果として、タンクとポンプは別体構造であり、タン
クのみ交換可能とする事も可能であり、用途によっては
一体構造であってもよく、低コストの為に応用範囲が広
くなる。The purpose of this review is to provide a simplified pump by not using a valve in the pump structure, but by providing a valve effect with a pump input hole and a pump output hole that have different fluid resistances, and at the same time reducing costs. There is a particular thing. Another effect is that the outside air intake hole, which also serves to prevent ink evaporation inside the tank, is used as part of the pump mechanism, and it has the combined effect of the pump and the ink evaporation prevention hole. . Another advantage is that the tank and pump are separate structures, so only the tank can be replaced, and depending on the application, it may be an integral structure, which widens the range of applications due to low cost.
第１図は従来の実施例である。
１・・・インクジェットヘッド ２・・・Ｐ’ＺＴ５・
・・圧力室 ４・・・ノズル５・・・インク
供給口 ６・・・タンク７・・・インク
８・・・空 気９・・・弁 １０・・・
弁１１・・・ポンプ １２・・・指１５・・・
振動板
第２図（ａ） ｙ （ｂ）％第３図は、本発明の一実施
例で１４・・・ポンプ
１５・・・蒸発防止用空気取り入れ口
１７・・・外気取り入れ口 １８・・・指１９・・・出
口 ２０・・・タンク２１・・・蒸発防止用
空気取り入れ口
２２・・・インク流出防止袋
以 上
出願人 信州精器株式会社
株式会社 瞠訪精工舎
代理人 弁理士 最上 務
ソ
第１図
第２図
第３図FIG. 1 shows a conventional embodiment. 1... Inkjet head 2... P'ZT5.
...Pressure chamber 4...Nozzle 5...Ink supply port 6...Tank 7...Ink
8...Air 9...Valve 10...
Valve 11...Pump 12...Finger 15...
Diaphragm Fig. 2 (a) y (b)% Fig. 3 shows one embodiment of the present invention 14...Pump 15...Evaporation prevention air intake 17...Outside air intake 18...・Finger 19...Outlet 20...Tank 21...Evaporation prevention air intake 22...Ink spill prevention bag and above Applicant Shinshu Seiki Co., Ltd. Muwa Seikosha Agent Patent attorney Mogami Mumaso Figure 1 Figure 2 Figure 3
Claims (2)
よりインクを噴射して文字画素を印字するインクオンデ
ィマント型のインクジェットヘッドと、このインクジェ
ットヘッドにインクを補給するタンクで構成するインク
ジェットプリンターに於いて、前記タンクは外気と連通
する空気取り入れ口を持ち、該空気とり入れ口は前記タ
ンク内のインクを前記インクジェットヘッドに送る為の
ポンプと結合し、該ポンプは外気を取り入れてタンクに
送り込む如き空気取り入れ口を持ち、このポンプの空気
取り入れ口の流体抵抗は前記タンクの空気取り入れ口の
流体抵抗に対して小さい事を！！＃徴とするインクジェ
ットヘッドのポンプ。(1) An inkjet printer consisting of an ink-on-demand type inkjet head that prints character pixels by pressurizing ink in a pressurized chamber and ejecting ink from a communicating nozzle, and a tank that replenishes ink to this inkjet head. The tank has an air intake that communicates with outside air, and the air intake is coupled to a pump for sending ink in the tank to the inkjet head, and the pump takes in outside air and sends it into the tank. The fluid resistance of the air intake of this pump should be smaller than the fluid resistance of the air intake of the tank! ! # Inkjet head pump.
の空気取り入れ口は連通し、且つ、印字中は開放状態で
ある事を特徴とする特許請求の範囲第１項記載のインク
ジェットヘッドのポンプ。(2) The pump for an inkjet head according to claim 1, wherein the air intake port of the pump and the air intake port of the tank communicate with each other and are open during printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13290681A JPS5836457A (en) | 1981-08-25 | 1981-08-25 | inkjet head pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13290681A JPS5836457A (en) | 1981-08-25 | 1981-08-25 | inkjet head pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5836457A true JPS5836457A (en) | 1983-03-03 |
Family
ID=15092291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13290681A Pending JPS5836457A (en) | 1981-08-25 | 1981-08-25 | inkjet head pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5836457A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2742094A1 (en) * | 1995-12-07 | 1997-06-13 | Pelikan Produktions Ag | CARTRIDGE FOR LIQUID |
| EP0709207A3 (en) * | 1994-10-26 | 1998-01-07 | Seiko Epson Corporation | Ink cartridge for ink jet printer |
| US6412931B1 (en) | 1989-10-20 | 2002-07-02 | Canon Kabushiki Kaisha | Ink jet apparatus and ink jet cartridge and ink container mountable thereto |
| EP1502749A1 (en) | 2003-07-29 | 2005-02-02 | Brother Kogyo Kabushiki Kaisha | Inkjet recording apparatus and ink cartridge |
| US6871944B2 (en) | 1996-02-21 | 2005-03-29 | Seiko Epson Corporation | Ink cartridge |
| US6905199B2 (en) | 2000-10-20 | 2005-06-14 | Seiko Epson Corporation | Ink cartridge for ink jet recording device |
| US6986568B2 (en) | 1997-03-19 | 2006-01-17 | Seiko Epson Corporation | Valve unit in ink supply channel of ink-jet recording apparatus, ink cartridge using the valve unit, ink supply needle and method of producing the valve unit |
| US7011397B2 (en) | 2002-09-12 | 2006-03-14 | Seiko Epson Corporation | Ink cartridge and method of regulating fluid flow |
| US7090341B1 (en) | 1998-07-15 | 2006-08-15 | Seiko Epson Corporation | Ink-jet recording device and ink supply unit suitable for it |
| US7367652B2 (en) | 2000-10-20 | 2008-05-06 | Seiko Epson Corporation | Ink-jet recording device and ink cartridge |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52128166A (en) * | 1976-04-19 | 1977-10-27 | Gould Inc | Ink jet type writing device |
| JPS5542875A (en) * | 1978-09-21 | 1980-03-26 | Canon Inc | Recording head cartridge |
| JPS5542877A (en) * | 1978-09-21 | 1980-03-26 | Canon Inc | Recording head cartridge |
-
1981
- 1981-08-25 JP JP13290681A patent/JPS5836457A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52128166A (en) * | 1976-04-19 | 1977-10-27 | Gould Inc | Ink jet type writing device |
| JPS5542875A (en) * | 1978-09-21 | 1980-03-26 | Canon Inc | Recording head cartridge |
| JPS5542877A (en) * | 1978-09-21 | 1980-03-26 | Canon Inc | Recording head cartridge |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6412931B1 (en) | 1989-10-20 | 2002-07-02 | Canon Kabushiki Kaisha | Ink jet apparatus and ink jet cartridge and ink container mountable thereto |
| US6609790B2 (en) | 1989-10-20 | 2003-08-26 | Canon Kabushiki Kaisha | Ink jet apparatus and ink jet cartridge and ink container mountable thereto |
| US6948804B2 (en) | 1994-10-26 | 2005-09-27 | Seiko Epson Corporation | Ink cartridge for ink jet printer |
| US6550901B2 (en) | 1994-10-26 | 2003-04-22 | Seiko Epson Corporation | Ink cartridge for ink jet printer |
| EP0709207A3 (en) * | 1994-10-26 | 1998-01-07 | Seiko Epson Corporation | Ink cartridge for ink jet printer |
| US7029103B2 (en) | 1994-10-26 | 2006-04-18 | Seiko Epson Corporation | Ink cartridge for ink jet printer |
| US6000788A (en) * | 1994-10-26 | 1999-12-14 | Seiko Epson Corporation | Ink cartridge for ink jet printer |
| US6916089B2 (en) | 1994-10-26 | 2005-07-12 | Seiko Epson Corporation | Ink cartridge for ink jet printer |
| FR2742094A1 (en) * | 1995-12-07 | 1997-06-13 | Pelikan Produktions Ag | CARTRIDGE FOR LIQUID |
| US6871944B2 (en) | 1996-02-21 | 2005-03-29 | Seiko Epson Corporation | Ink cartridge |
| US6986568B2 (en) | 1997-03-19 | 2006-01-17 | Seiko Epson Corporation | Valve unit in ink supply channel of ink-jet recording apparatus, ink cartridge using the valve unit, ink supply needle and method of producing the valve unit |
| US7090341B1 (en) | 1998-07-15 | 2006-08-15 | Seiko Epson Corporation | Ink-jet recording device and ink supply unit suitable for it |
| US7350907B2 (en) | 1998-07-15 | 2008-04-01 | Seiko Epson Corporation | Ink-jet recording device and ink supply unit suitable for it |
| US7422317B2 (en) | 1998-07-15 | 2008-09-09 | Seiko Epson Corporation | Ink-jet recording device and ink supply unit suitable for it |
| US7559634B2 (en) | 1998-07-15 | 2009-07-14 | Seiko Epson Corporation | Ink-jet recording device and ink supply unit suitable for it |
| US6905199B2 (en) | 2000-10-20 | 2005-06-14 | Seiko Epson Corporation | Ink cartridge for ink jet recording device |
| US7293866B2 (en) | 2000-10-20 | 2007-11-13 | Seiko Epson Corporation | Ink cartridge for ink jet recording device |
| US7367652B2 (en) | 2000-10-20 | 2008-05-06 | Seiko Epson Corporation | Ink-jet recording device and ink cartridge |
| US7011397B2 (en) | 2002-09-12 | 2006-03-14 | Seiko Epson Corporation | Ink cartridge and method of regulating fluid flow |
| US7434923B2 (en) | 2002-09-12 | 2008-10-14 | Seiko Epson Corporation | Ink cartridge and method of regulating fluid flow |
| EP1502749A1 (en) | 2003-07-29 | 2005-02-02 | Brother Kogyo Kabushiki Kaisha | Inkjet recording apparatus and ink cartridge |
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