JP2013526441A - 循環ポンプを具備する流体噴射装置 - Google Patents
循環ポンプを具備する流体噴射装置 Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
- F04B43/043—Micropumps
- F04B43/046—Micropumps with piezoelectric drive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
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- 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
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- 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
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Abstract
Description
上記したように、インクジェット印刷システムの開発において解決されるべき種々の課題が依然として存在する。たとえば、そのようなシステムで使用されるインクジェットプリントヘッドには、インクの閉塞及び/またはインクの目詰まりという問題が依然として存在している。インクの閉塞の1つの原因は、プリントヘッド中に気泡として蓄積する過度の空気である。インクがインク槽(インクリザーバ)に格納されているときなどにインクが空気にさらされると、余分な空気がインクに溶け込む。その後におけるプリントヘッドの噴射チャンバからのインク滴の吐出動作によって、インクから余分な空気が放出され、その放出された空気は気泡として蓄積される。それらの気泡は、噴射チャンバからプリントヘッドの他の領域に移動し、そこで、プリントヘッドへのインクの流れ及びプリントヘッド内のインクの流れを遮断する場合がある。
図1は、本開示の1実施形態による、インクジェット印刷システム100として具現化されている流体噴射装置を示す。この実施形態では、流体噴射アセンブリは、流体液滴噴射プリントヘッド114として開示されている。インクジェット印刷システム100は、インクジェットプリントヘッドアセンブリ102、インク供給アセンブリ104、マウンティングアセンブリ106、媒体搬送アセンブリ108、電子プリンタコントローラ110、及び、インクジェット印刷システム100の種々の電気部品に電力を供給する少なくとも1つの電源112を備えている。インクジェットプリントヘッドアセンブリ102は、印刷媒体118に印刷するために、複数のオリフィスまたはノズル116を通してインク滴を印刷媒体118に向けて噴射する少なくとも1つの流体噴射アセンブリ114(プリントヘッド114)を備えている。印刷媒体118を、紙、カード用紙、透明フィルム(OHPフィルムなど)、マイラー(商標)などの任意のタイプの適切なシート状物質やロール材(rollmaterial)とすることができる。典型的には、ノズル116は、インクジェットプリントヘッドアセンブリ102及び印刷媒体118が互いに対して移動しているときに、該ノズル116から適切な順番でインクを吐出させると、文字及び/または記号及び/または他のグラフィックスまたは画像が印刷媒体118に印刷されるように、1以上の列すなわちアレイ(配列)をなすように配置される。
Claims (15)
- 流体再循環チャネルと、
前記再循環チャネル内に配置された液滴発生器と、
前記再循環チャネルの各端部と流体連絡している流体スロットと、
前記再循環チャネル内に非対称に配置されて、流体流れが、前記流体スロットから、前記再循環チャネル及び前記液滴発生器を通って、前記流体スロットに戻るようにするための圧電流体アクチュエーター
を備える流体噴射装置。 - 前記圧電流体アクチュエーターに、持続時間が制御された圧縮性流体変位及び伸張性流体変位を生じさせることによって、前記流体流れの方向を制御するためのコントローラをさらに備える、請求項1の流体噴射装置。
- 前記圧縮性流体変位の持続時間と前記伸張性流体変位の持続時間とが等しくない、請求項2の流体噴射装置。
- 前記圧縮性流体変位の持続時間及び前記伸張性流体変位の持続時間を制御するために前記コントローラにおいて実行可能な流れ制御モジュールをさらに備える、請求項2の流体噴射装置。
- 一方向への流体流れを促進するために、前記再循環チャネル内に非可動部品弁をさらに備える、請求項1の流体噴射装置。
- 前記再循環チャネルは、インレットチャネル、アウトレットチャネル、及び接続チャネルを備え、前記液滴発生器は、前記アウトレットチャネル内に配置されており、前記アクチュエーターは、前記インレットチャネル内に配置されている、請求項1の流体噴射装置。
- 前記再循環チャネルは、インレットチャネル、アウトレットチャネル、及び接続チャネルを備え、前記液滴発生器は、前記インレットチャネル内に配置されており、前記アクチュエーターは、前記アウトレットチャネル内に配置されている、請求項1の流体噴射装置。
- 流体噴射装置から流体を噴射する方法であって、
液滴発生器を有する流体再循環チャネルにおいて、流体スロットから前記液滴発生器を通って前記流体スロットに戻るように流体を流すために、流体アクチュエーターの圧縮性流体変位及び伸張性流体変位の持続時間を制御するステップと、
流体が前記液滴発生器を通って流れるときに該流体をノズルを通して噴射するステップ
を含む方法。 - 持続時間を制御する前記ステップが、
第1の持続時間を有する圧縮性流体変位を生成するステップと、
前記第1の持続時間とは異なる第2の持続時間を有する伸張性流体変位を生成するステップ
を含むことからなる、請求項8の方法。 - 圧縮性流体変位を生成する前記ステップが、前記チャネル内の領域が小さくなるように、機械的膜を前記チャネル中へとたわませるステップを含む、請求項9の方法。
- 伸張性流体変位を生成する前記ステップが、前記チャネル内の領域が大きくなるように、機械的膜を前記チャネルの外側へとたわませるステップを含む、請求項9の方法。
- 前記第1の持続時間は前記第2の持続時間よりも短く、前記流体変位は、流体が第1の方向に前記液滴発生器を通って流れるようにする、請求項9の方法。
- 前記第1の持続時間は前記第2の持続時間よりも長く、前記流体変位は、流体が第2の方向に前記液滴発生器を通って流れるようにする、請求項12の方法。
- 持続時間を制御する前記ステップが、機械読み取り可能命令を実行するコントローラによって前記流体アクチュエーターを作動させるステップを含む、請求項8の方法。
- 流体噴射装置であって、
流体再循環チャネル内の液滴噴射器と、
前記再循環チャネル及び前記液滴噴射器を通る流体流れの方向、流量及びタイミングを制御するための流体制御システム
を備え、
前記流体制御システムは、流体アクチュエーターとコントローラを備え、前記流体アクチュエーターは前記再循環チャネルに組み込まれており、前記コントローラは、前記流体アクチュエーターに、前記流体流れを引き起こす互いに時間的に非対称な圧縮性流体変位と伸張性流体変位を前記再循環チャネル内に生じさせるための実行可能命令を有することからなる、流体噴射装置。
Applications Claiming Priority (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
USPCT/US2010/035697 | 2010-05-21 | ||
PCT/US2010/035697 WO2011146069A1 (en) | 2010-05-21 | 2010-05-21 | Fluid ejection device including recirculation system |
US12/833,984 US8540355B2 (en) | 2010-07-11 | 2010-07-11 | Fluid ejection device with circulation pump |
US12/833,984 | 2010-07-11 | ||
PCT/US2010/043480 WO2012015397A1 (en) | 2010-07-28 | 2010-07-28 | Fluid ejection assembly with circulation pump |
USPCT/US2010/043480 | 2010-07-28 | ||
USPCT/US2010/054458 | 2010-10-28 | ||
PCT/US2010/054458 WO2012008978A1 (en) | 2010-07-11 | 2010-10-28 | Fluid ejection assembly with circulation pump |
USPCT/US2010/054412 | 2010-10-28 | ||
PCT/US2010/054412 WO2012057758A1 (en) | 2010-10-28 | 2010-10-28 | Fluid ejection assembly with circulation pump |
PCT/US2011/021168 WO2011146145A1 (en) | 2010-05-21 | 2011-01-13 | Microfluidic systems and networks |
USPCT/US2011/021168 | 2011-01-13 | ||
PCT/US2011/023173 WO2011146149A1 (en) | 2010-05-21 | 2011-01-31 | Fluid ejection device with circulation pump |
Publications (2)
Publication Number | Publication Date |
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JP2013526441A true JP2013526441A (ja) | 2013-06-24 |
JP5777706B2 JP5777706B2 (ja) | 2015-09-09 |
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JP2013512613A Expired - Fee Related JP5777706B2 (ja) | 2010-05-21 | 2011-01-31 | 循環ポンプを具備する流体噴射装置 |
JP2013511157A Expired - Fee Related JP5758484B2 (ja) | 2010-05-21 | 2011-02-15 | 流体ネットワークにおける流体流れの生成 |
JP2015111176A Expired - Fee Related JP6121480B2 (ja) | 2010-05-21 | 2015-06-01 | 流体ネットワークにおける流体流れの生成 |
JP2017060822A Expired - Fee Related JP6445608B2 (ja) | 2010-05-21 | 2017-03-27 | 流体ネットワークにおける流体流れの生成 |
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JP2013511157A Expired - Fee Related JP5758484B2 (ja) | 2010-05-21 | 2011-02-15 | 流体ネットワークにおける流体流れの生成 |
JP2015111176A Expired - Fee Related JP6121480B2 (ja) | 2010-05-21 | 2015-06-01 | 流体ネットワークにおける流体流れの生成 |
JP2017060822A Expired - Fee Related JP6445608B2 (ja) | 2010-05-21 | 2017-03-27 | 流体ネットワークにおける流体流れの生成 |
Country Status (6)
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EP (1) | EP2572206B1 (ja) |
JP (4) | JP5777706B2 (ja) |
KR (1) | KR101776358B1 (ja) |
CN (2) | CN102985261B (ja) |
BR (1) | BR112012029583B1 (ja) |
WO (2) | WO2011146149A1 (ja) |
Cited By (6)
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JP2017537000A (ja) * | 2014-10-31 | 2017-12-14 | ヒューレット−パッカード デベロップメント カンパニー エル.ピー.Hewlett‐Packard Development Company, L.P. | 流体噴射装置 |
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JP2018518386A (ja) * | 2015-07-14 | 2018-07-12 | ヒューレット−パッカード デベロップメント カンパニー エル.ピー.Hewlett‐Packard Development Company, L.P. | 流体再循環チャネル |
KR102365850B1 (ko) | 2015-07-14 | 2022-02-21 | 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. | 유체 재순환 채널 |
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JP2020512942A (ja) * | 2017-05-08 | 2020-04-30 | ヒューレット−パッカード デベロップメント カンパニー エル.ピー.Hewlett‐Packard Development Company, L.P. | 流体吐出ダイの流体再循環 |
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Also Published As
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JP6121480B2 (ja) | 2017-04-26 |
CN102985261B (zh) | 2016-02-03 |
JP5758484B2 (ja) | 2015-08-05 |
JP2015211965A (ja) | 2015-11-26 |
WO2011146156A3 (en) | 2012-03-08 |
WO2011146149A1 (en) | 2011-11-24 |
BR112012029583A2 (pt) | 2016-08-02 |
CN102985831A (zh) | 2013-03-20 |
EP2572206B1 (en) | 2020-04-29 |
JP2017196614A (ja) | 2017-11-02 |
KR20130118222A (ko) | 2013-10-29 |
BR112012029583B1 (pt) | 2020-03-10 |
JP6445608B2 (ja) | 2018-12-26 |
EP2572206A4 (en) | 2018-04-11 |
KR101776358B1 (ko) | 2017-09-19 |
WO2011146156A2 (en) | 2011-11-24 |
EP2572206A2 (en) | 2013-03-27 |
CN102985261A (zh) | 2013-03-20 |
CN102985831B (zh) | 2016-01-20 |
JP5777706B2 (ja) | 2015-09-09 |
JP2013533102A (ja) | 2013-08-22 |
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