JP2009220505A5 - - Google Patents
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- JP2009220505A5 JP2009220505A5 JP2008069563A JP2008069563A JP2009220505A5 JP 2009220505 A5 JP2009220505 A5 JP 2009220505A5 JP 2008069563 A JP2008069563 A JP 2008069563A JP 2008069563 A JP2008069563 A JP 2008069563A JP 2009220505 A5 JP2009220505 A5 JP 2009220505A5
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- liquid
- ejecting apparatus
- pressure chamber
- liquid ejecting
- pulse
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Claims (15)
前記液体が充填される圧力室と、
前記圧力室の前記液体をその供給側から加圧する加圧手段と、
前記圧力室の壁面に設けられ、前記壁面を変形させることによって前記圧力室内の容積を変化させる圧力発生素子と、
前記圧力室と連通して前記液体を噴射するためのノズルと、
前記圧力発生素子に対する駆動パルスと前記加圧手段とを制御する制御部とを備え、
前記制御部は、前記加圧手段により前記液体に加圧するとともに、前記圧力室から前記液体とともに気泡を吐出するためのメンテナンス用駆動パルスを前記圧力発生素子に供給することを特徴とする液体噴射装置。 A liquid ejecting apparatus for ejecting liquid,
A pressure chamber filled with the liquid;
Pressurizing means for pressurizing the liquid in the pressure chamber from the supply side;
A pressure generating element that is provided on a wall surface of the pressure chamber and changes a volume of the pressure chamber by deforming the wall surface;
A nozzle for injecting the liquid in communication with the pressure chamber;
A control unit for controlling a driving pulse for the pressure generating element and the pressurizing unit ;
The control unit pressurizes the liquid by the pressurizing unit, and supplies a maintenance driving pulse for discharging bubbles together with the liquid from the pressure chamber to the pressure generating element. .
前記制御部は、前記加圧手段を制御して前記圧力室の前記液体を加圧させると同時に、前記メンテナンス用駆動パルスを発生させることが可能であり、
前記メンテナンス用駆動パルスは、前記圧力発生素子を駆動させることによって、前記圧力室を膨張状態へと推移させる第１のパルス部分と、前記膨張状態を所定の時間保持させる第２のパルス部分と、前記膨張状態から前記圧力室を収縮させる第３のパルス部分とを備え、
前記第１のパルス部分のパルス幅は、前記圧力室に充填された前記液体のヘルムホルツ共振周期に基づく値に設定されていることを特徴とする液体噴射装置。 The liquid ejecting apparatus according to claim 1,
Wherein the control unit is configured at the same time by controlling the pressurizing means to pressurized the liquid in the pressure chamber, it is possible to pre-generate the texture Maintenance driving pulse,
The maintenance drive pulse includes a first pulse portion that causes the pressure chamber to transition to an expanded state by driving the pressure generating element, and a second pulse portion that maintains the expanded state for a predetermined time, A third pulse portion for contracting the pressure chamber from the expanded state,
The liquid ejecting apparatus according to claim 1, wherein a pulse width of the first pulse portion is set to a value based on a Helmholtz resonance period of the liquid filled in the pressure chamber.
前記加圧手段は、加圧液体の貯留部と前記圧力室とを連通する流路の途中に配設された圧力調整弁を有するとともに、前記制御部は前記圧力調整弁の開制御により加圧液体の加圧力を前記圧力室の液体に作用させるように制御するものであることを特徴とする液体噴射装置。 In the liquid ejecting apparatus according to claim 1 or 2,
The pressurizing means has a pressure regulating valve disposed in the middle of a flow path communicating the pressurized liquid storage section and the pressure chamber, and the control section is pressurized by controlling the opening of the pressure regulating valve. A liquid ejecting apparatus that controls the pressure of the liquid to act on the liquid in the pressure chamber.
前記制御部は、前記加圧手段を介して前記液体を加圧させている状態で、前記メンテナンス用駆動パルスを前記圧力発生素子に供給するようにしたものであることを特徴とする液体噴射装置。 In the liquid ejecting apparatus according to claim 2 or 3,
The control unit is configured to supply the maintenance driving pulse to the pressure generating element in a state where the liquid is pressurized via the pressurizing unit. .
前記制御部は、前記メンテナンス用駆動パルスを前記圧力発生素子に供給している状態で、前記加圧手段が前記液体を加圧するように制御することを特徴とする液体噴射装置。 In the liquid ejecting apparatus according to claim 2 or 3,
The liquid ejecting apparatus according to claim 1, wherein the controller controls the pressurizing unit to pressurize the liquid in a state where the maintenance driving pulse is supplied to the pressure generating element.
吐出不良を含むドット抜けを検出する液体吐出検出手段をさらに有し、
前記制御手段は前記液体吐出検出手段によりドット抜けが検出されたノズル列を選択して前記メンテナンス駆動パルスを前記圧力発生素子に供給するとともに、前記加圧手段を制御して前記圧力室の前記液体を加圧させるように構成したことを特徴とする液体噴射装置。 The liquid ejecting apparatus according to any one of claims 2 to 5,
It further has a liquid discharge detection means for detecting missing dots including discharge defects,
The control means selects a nozzle row in which dot dropout is detected by the liquid discharge detection means, supplies the maintenance drive pulse to the pressure generating element, and controls the pressure means to control the liquid in the pressure chamber. A liquid ejecting apparatus configured to pressurize the liquid.
前記制御部は、少なくとも一部の前記メンテナンス用駆動パルスの波形が互いに異なる前記メンテナンス用駆動パルスを所定の順番で繰り返し発生させることを特徴とする液体噴射装置。 The liquid ejecting apparatus according to any one of claims 2 to 6,
The liquid ejecting apparatus according to claim 1, wherein the control unit repeatedly generates the maintenance drive pulses having different waveforms of at least some of the maintenance drive pulses in a predetermined order.
互いに異なる前記メンテナンス用駆動パルスは、前記第２のパルス部分のパルス幅が互いに異なることを特徴とする液体噴射装置。 The liquid ejecting apparatus according to claim 7,
The liquid ejection apparatus, wherein the maintenance drive pulses different from each other have different pulse widths of the second pulse portion.
前記制御部は、前記メンテナンス用駆動パルスが一定周期で繰り返される複数組の駆動パルス群を発生させ、
各組の駆動パルス群は、前記メンテナンス用駆動パルスの波形が同一であり、
前記複数組の駆動パルス群は、前記メンテナンス用駆動パルスの波形が互いに異なる２組以上の駆動パルス群を含むことを特徴とする液体噴射装置。 The liquid ejecting apparatus according to any one of claims 2 to 6,
The control unit generates a plurality of sets of driving pulse groups in which the maintenance driving pulses are repeated at a constant cycle,
Each set of drive pulse groups has the same drive pulse waveform for maintenance,
The plurality of sets of drive pulse groups include two or more sets of drive pulse groups in which waveforms of the maintenance drive pulses are different from each other.
前記２組以上の駆動パルス群は、前記第２のパルス部分のパルス幅が互いに異なることを特徴とする液体噴射装置。 The liquid ejecting apparatus according to claim 9, wherein
In the liquid ejecting apparatus, the two or more sets of driving pulse groups have different pulse widths of the second pulse portion.
請求項１乃至請求項１０の何れか一つに記載する液体噴射装置を備えることを特徴とするインクジェットプリンタ。 An inkjet printer,
Inkjet printer to feature in that it comprises a liquid ejecting apparatus according to any one of claims 1 to 10.
前記圧力室の前記液体を加圧するとともに、前記圧力室から前記液体とともに気泡を吐出するためのメンテナンス用駆動パルスを前記圧力発生素子に供給することを特徴とする液体噴射装置の気泡除去方法。 A pressure chamber filled with a liquid, a pressure generating element that is provided on a wall surface of the pressure chamber and changes the volume of the pressure chamber by deforming the wall surface, and the liquid is ejected in communication with the pressure chamber. A bubble removing method for a liquid ejecting apparatus that ejects the liquid through the nozzle.
A method for removing bubbles in a liquid ejecting apparatus, comprising pressurizing the liquid in the pressure chamber and supplying a maintenance drive pulse for discharging bubbles from the pressure chamber together with the liquid to the pressure generating element.
前記圧力室の前記液体を加圧する一方、前記圧力室から前記液体とともに不要な気泡を吐出するためのメンテナンス用駆動パルスを前記圧力発生素子に供給して気泡除去フラッシングを行うとともに、
前記気泡除去フラッシングの際の前記メンテナンス用駆動パルスは、前記圧力発生素子を駆動させることによって、前記圧力室を膨張させて、膨張状態へと推移させる第１のパルス部分と、前記膨張状態を所定の時間保持させる第２のパルス部分と、前記膨張状態から前記圧力室を収縮させる第３のパルス部分とを備え、前記第１のパルス部分のパルス幅は、前記圧力室に充填された前記液体のヘルムホルツ共振周期に基づく値に設定されていることを特徴とする液体噴射装置の気泡除去方法。 The method of removing bubbles in a liquid ejecting apparatus according to claim 12,
While pressurizing the liquid in the pressure chamber, supplying a maintenance driving pulse for discharging unnecessary bubbles together with the liquid from the pressure chamber to the pressure generating element to perform bubble removal flushing,
The maintenance driving pulse at the time of bubble removal flushing is configured to drive the pressure generating element to inflate the pressure chamber to change to an expanded state, and to set the expanded state to a predetermined value. And a third pulse portion for contracting the pressure chamber from the expanded state, and the pulse width of the first pulse portion is the liquid filled in the pressure chamber. A method for removing bubbles in a liquid ejecting apparatus, wherein the value is set based on a Helmholtz resonance period.
前記液体を加圧した状態で前記メンテナンス用駆動パルスを前記圧力発生素子に供給することを特徴とする液体噴射装置の気泡除去方法。 The method for removing bubbles in a liquid ejecting apparatus according to claim 13.
A method for removing bubbles in a liquid ejecting apparatus, wherein the maintenance driving pulse is supplied to the pressure generating element in a state where the liquid is pressurized.
前記メンテナンス用駆動パルスを前記圧力発生素子に供給した状態で前記液体を加圧することを特徴とする液体噴射装置の気泡除去方法。 The method for removing bubbles in a liquid ejecting apparatus according to claim 13.
A method of removing bubbles in a liquid ejecting apparatus, comprising pressurizing the liquid in a state where the maintenance driving pulse is supplied to the pressure generating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008069563A JP2009220505A (en) | 2008-03-18 | 2008-03-18 | Liquid jet apparatus, method for removing bubbles therein, and inkjet printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008069563A JP2009220505A (en) | 2008-03-18 | 2008-03-18 | Liquid jet apparatus, method for removing bubbles therein, and inkjet printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2009220505A JP2009220505A (en) | 2009-10-01 |
| JP2009220505A5 true JP2009220505A5 (en) | 2010-09-09 |
Family
ID=41237813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008069563A Pending JP2009220505A (en) | 2008-03-18 | 2008-03-18 | Liquid jet apparatus, method for removing bubbles therein, and inkjet printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2009220505A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5644424B2 (en) * | 2010-11-26 | 2014-12-24 | ブラザー工業株式会社 | Recording apparatus and ejection performance recovery method |
| JP2012236306A (en) * | 2011-05-11 | 2012-12-06 | Mimaki Engineering Co Ltd | Liquid ejecting device and method for removing bubble of liquid ejecting device |
| JP6106874B2 (en) * | 2012-12-05 | 2017-04-05 | 株式会社リコー | Driving method of liquid discharge head |
| JP7224906B2 (en) * | 2018-01-12 | 2023-02-20 | キヤノン株式会社 | Module substrate cleaning method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5571567A (en) * | 1978-11-22 | 1980-05-29 | Fujitsu Ltd | Ink-jet recording device |
| JPS61227061A (en) * | 1985-04-01 | 1986-10-09 | Konishiroku Photo Ind Co Ltd | Ink jet recorder |
| JPS6394848A (en) * | 1986-10-08 | 1988-04-25 | Nec Corp | Head protection device for ink jet printer |
| JPH05131643A (en) * | 1991-11-13 | 1993-05-28 | Ricoh Co Ltd | Air bubble discharge device in ink jet recording apparatus |
| JPH11198400A (en) * | 1998-01-13 | 1999-07-27 | Ricoh Co Ltd | Ink jet recorder |
| JP2007245351A (en) * | 2006-03-13 | 2007-09-27 | Canon Inc | Inkjet recorder |
| JP2007283624A (en) * | 2006-04-17 | 2007-11-01 | Olympus Corp | Image forming apparatus |
| JP4899656B2 (en) * | 2006-06-19 | 2012-03-21 | セイコーエプソン株式会社 | Liquid ejecting apparatus and liquid container |
-
2008
- 2008-03-18 JP JP2008069563A patent/JP2009220505A/en active Pending
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