JP2011178013A5 - - Google Patents
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- JP2011178013A5 JP2011178013A5 JP2010043857A JP2010043857A JP2011178013A5 JP 2011178013 A5 JP2011178013 A5 JP 2011178013A5 JP 2010043857 A JP2010043857 A JP 2010043857A JP 2010043857 A JP2010043857 A JP 2010043857A JP 2011178013 A5 JP2011178013 A5 JP 2011178013A5
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- liquid
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- valve
- ejection head
- ejecting apparatus
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Description
上述した課題の少なくとも一部を解決するために、本発明の液体噴射装置は次の構成を採用した。すなわち、
噴射ヘッドに設けられた噴射ノズルから液体を噴射する液体噴射装置であって、
前記噴射ノズルから噴射する液体を、液体流路を介して前記噴射ヘッドに供給する液体供給部と、
前記液体供給部と前記噴射ヘッドとの間の前記液体流路に設けられた圧力調整手段であって、該圧力調整手段と前記噴射ヘッドとの間で該噴射ヘッドに供給される液体を蓄えておく圧力室が内蔵されており、該圧力室内の圧力が低下すると開弁して、該噴射ヘッドに供給される液体の圧力を所定の圧力範囲に調整する圧力調整手段と、
前記液体噴射ヘッドと前記液体供給路の前記圧力調整弁の上流側とを接続する循環流路と、
前記循環流路を介して前記噴射ヘッド内の液体を前記圧力室の上流側へ還流させる液体循環手段と、を備え、
前記圧力調整弁と前記噴射ヘッドとの間の前記液体流路は、該圧力調整弁と前記圧力室の下方で接続されている
ことを要旨とする。
In order to solve at least a part of the problems described above, the liquid ejecting apparatus of the present invention employs the following configuration. That is,
A liquid ejecting apparatus that ejects liquid from an ejection nozzle provided in an ejection head,
A liquid supply unit that supplies the liquid ejected from the ejection nozzle to the ejection head via a liquid channel ;
Pressure adjusting means provided in the liquid flow path between the liquid supply unit and the ejection head, and stores the liquid supplied to the ejection head between the pressure adjustment means and the ejection head placing the pressure chamber is built, and opens when the pressure of the pressure chamber decreases, the pressure adjusting means for adjusting the pressure of the liquid supplied to the ejection head in a predetermined pressure range,
A circulation flow path connecting the liquid jet head and the upstream side of the pressure regulating valve of the liquid supply path;
And a hydraulic body circulating means Ru refluxed to the upstream side of the liquid the pressure chamber in the injection head through the circulation passage,
The gist of the invention is that the liquid flow path between the pressure regulating valve and the ejection head is connected to the pressure regulating valve and below the pressure chamber .
また、上述した本発明の液体噴射装置において、前記循環流路が前記液体供給路の前記圧力調整弁の上流側で接続する位置に設けられ、前記圧力調整弁が前記液体供給部と接続された状態と、該圧力調整弁が前記循環流路と接続された状態と、を切替える切替え弁を備え、前記圧力調整弁が前記循環流路と接続された状態において、前記液体循環手段を駆動してもよい。 In the liquid ejecting apparatus of the present invention described above, the circulation flow path is provided at a position where the circulation flow path is connected to the upstream side of the pressure adjustment valve, and the pressure adjustment valve is connected to the liquid supply unit. A switching valve that switches between a state and a state in which the pressure adjustment valve is connected to the circulation flow path, and the liquid circulation means is driven in a state in which the pressure adjustment valve is connected to the circulation flow path. Also good.
また、上述した本発明の液体噴射装置において、前記圧力室の一側面は、薄膜により構成され、前記液体供給部と前記圧力調整弁との間の前記液体流路に設けられた開閉弁と、前記噴射ノズルが形成されたノズル形成面にキャップを当接させて形成した閉空間に負圧を蓄積可能な吸引クリーニング部と、を備え、前記開閉弁を閉じた状態で、前記吸引クリーニング部により前記閉空間を負圧を蓄積し、所定の時間が経過した後に、前記開閉弁を開いてもよい。Further, in the liquid ejecting apparatus of the present invention described above, one side surface of the pressure chamber is configured by a thin film, and an on-off valve provided in the liquid flow path between the liquid supply unit and the pressure regulating valve; A suction cleaning unit capable of accumulating negative pressure in a closed space formed by bringing a cap into contact with a nozzle forming surface on which the injection nozzle is formed, and with the on-off valve closed, the suction cleaning unit The on-off valve may be opened after a predetermined time has elapsed after accumulating negative pressure in the closed space.
こうすれば、圧力調整弁の圧力室で分離された気泡を、噴射ノズルからキャップへと排出することができる。If it carries out like this, the bubble isolate | separated in the pressure chamber of the pressure control valve can be discharged | emitted from an injection nozzle to a cap.
Claims (3)
前記噴射ノズルから噴射する液体を、液体流路を介して前記噴射ヘッドに供給する液体供給部と、
前記液体供給部と前記噴射ヘッドとの間の前記液体流路に設けられた圧力調整手段であって、該圧力調整手段と前記噴射ヘッドとの間で該噴射ヘッドに供給される液体を蓄えておく圧力室が内蔵されており、該圧力室内の圧力が低下すると開弁して、該噴射ヘッドに供給される液体の圧力を所定の圧力範囲に調整する圧力調整手段と、
前記液体噴射ヘッドと前記液体供給路の前記圧力調整弁の上流側とを接続する循環流路と、
前記循環流路を介して前記噴射ヘッド内の液体を前記圧力室の上流側へ還流させる液体循環手段と、を備え、
前記圧力調整弁と前記噴射ヘッドとの間の前記液体流路は、該圧力調整弁と前記圧力室の下方で接続されている液体噴射装置。 A liquid ejecting apparatus that ejects liquid from an ejection nozzle provided in an ejection head,
A liquid supply unit that supplies the liquid ejected from the ejection nozzle to the ejection head via a liquid channel ;
Pressure adjusting means provided in the liquid flow path between the liquid supply unit and the ejection head, and stores the liquid supplied to the ejection head between the pressure adjustment means and the ejection head placing the pressure chamber is built, and opens when the pressure of the pressure chamber decreases, the pressure adjusting means for adjusting the pressure of the liquid supplied to the ejection head in a predetermined pressure range,
A circulation flow path connecting the liquid jet head and the upstream side of the pressure regulating valve of the liquid supply path;
And a hydraulic body circulating means Ru refluxed to the upstream side of the liquid the pressure chamber in the injection head through the circulation passage,
The liquid ejecting apparatus , wherein the liquid flow path between the pressure regulating valve and the ejection head is connected below the pressure regulating valve and the pressure chamber .
前記循環流路が前記液体供給路の前記圧力調整弁の上流側で接続する位置に設けられ、前記圧力調整弁が前記液体供給部と接続された状態と、該圧力調整弁が前記循環流路と接続された状態と、を切替える切替え弁を備え、
前記圧力調整弁が前記循環流路と接続された状態において、前記液体循環手段を駆動する液体噴射装置。 The liquid ejecting apparatus according to claim 1,
A state in which the circulation channel is connected to the liquid supply path on the upstream side of the pressure adjustment valve; the pressure adjustment valve is connected to the liquid supply unit; and the pressure adjustment valve is connected to the circulation channel. With a switching valve that switches between the state connected to
A liquid ejecting apparatus that drives the liquid circulating means in a state where the pressure regulating valve is connected to the circulation flow path .
前記圧力室の一側面は、薄膜により構成され、
前記液体供給部と前記圧力調整弁との間の前記液体流路に設けられた開閉弁と、
前記噴射ノズルが形成されたノズル形成面にキャップを当接させて形成した閉空間に負圧を蓄積可能な吸引クリーニング部と、を備え、
前記開閉弁を閉じた状態で、前記吸引クリーニング部により前記閉空間に負圧を蓄積し、所定の時間が経過した後に、前記開閉弁を開く液体噴射装置。 The liquid ejecting apparatus according to claim 1 or 2,
One side of the pressure chamber is constituted by a thin film,
An on-off valve provided in the liquid flow path between the liquid supply unit and the pressure regulating valve;
A suction cleaning unit capable of accumulating negative pressure in a closed space formed by bringing a cap into contact with the nozzle forming surface on which the injection nozzle is formed, and
A liquid ejecting apparatus that accumulates a negative pressure in the closed space by the suction cleaning unit in a state in which the on-off valve is closed, and opens the on-off valve after a predetermined time has elapsed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010043857A JP5434673B2 (en) | 2010-03-01 | 2010-03-01 | Liquid ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010043857A JP5434673B2 (en) | 2010-03-01 | 2010-03-01 | Liquid ejector |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2011178013A JP2011178013A (en) | 2011-09-15 |
| JP2011178013A5 true JP2011178013A5 (en) | 2013-02-21 |
| JP5434673B2 JP5434673B2 (en) | 2014-03-05 |
Family
ID=44690065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010043857A Active JP5434673B2 (en) | 2010-03-01 | 2010-03-01 | Liquid ejector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5434673B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6065698B2 (en) * | 2013-03-27 | 2017-01-25 | セイコーエプソン株式会社 | Liquid ejecting head module and liquid ejecting apparatus |
| JP6255969B2 (en) * | 2013-12-16 | 2018-01-10 | セイコーエプソン株式会社 | Liquid ejecting apparatus and maintenance method |
| JP6307912B2 (en) | 2014-02-07 | 2018-04-11 | セイコーエプソン株式会社 | Liquid ejector |
| US9527302B2 (en) | 2014-07-07 | 2016-12-27 | Seiko Epson Corporation | Liquid ejecting apparatus with pressure adjusting valve |
| WO2016208533A1 (en) * | 2015-06-26 | 2016-12-29 | 積水化学工業株式会社 | Inkjet printing device and printing method |
| JP7031422B2 (en) * | 2018-03-26 | 2022-03-08 | 京セラドキュメントソリューションズ株式会社 | Liquid sprayer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4049084B2 (en) * | 2003-11-07 | 2008-02-20 | セイコーエプソン株式会社 | Fluid control valve and droplet discharge device |
| JP2008173789A (en) * | 2007-01-16 | 2008-07-31 | Seiko Epson Corp | Liquid jetting apparatus |
-
2010
- 2010-03-01 JP JP2010043857A patent/JP5434673B2/en active Active
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