公开(公告)号：US20240316921A1

公开(公告)日：2024-09-26

申请号：US18611784

申请日：2024-03-21

申请人： SEIKO EPSON CORPORATION

发明人： Asami OKAMOTO

IPC分类号： B41J2/045 ,  B41J2/025

CPC分类号： B41J2/04581 ,  B41J2/025

摘要： A head unit includes a piezoelectric element displaced according to a driving signal to cause a liquid to be ejected, a driving signal generation unit that generates the driving signal, a residual vibration signal generation circuit that outputs a change in an electromotive force of the piezoelectric element according to residual vibration, in a pressure chamber in communication with a nozzle, that occurs after supply of the driving signal, as a residual vibration signal, an analog differential residual vibration signal generation circuit that converts the residual vibration signal into an analog differential residual vibration signal, a demodulation circuit that demodulates the analog differential residual vibration signal and outputs a demodulated signal, an AD converter that converts the demodulated signal into a digital signal, and a determination unit that determines, based on the digital signal, a state in the pressure chamber.

公开(公告)号：US11312139B2

公开(公告)日：2022-04-26

申请号：US16940950

申请日：2020-07-28

申请人： SEIKO EPSON CORPORATION

发明人： Junichiro Matsushita

IPC分类号： B41J2/165 ,  B41J2/03 ,  B41J2/025 ,  B41J2/045

摘要： A method for driving a liquid ejecting apparatus according to a thickening state of liquid in a nozzle determined by a thickening determination section. When the thickening state is a first state, a second flushing signal by which liquid is ejected from a nozzle is supplied a first number of times to the driving element without applying a micro vibration signal by which liquid is not ejected from a nozzle. When the thickening state is a second state in which viscosity of the liquid is higher than viscosity of the liquid in the first state, the second flushing signal that is different from a first flushing signal is supplied the first number of times after applying the micro vibration signal, and a first flushing signal by which liquid is ejected from a nozzle is supplied a second number of times to the driving element after applying the second flushing signals.

公开(公告)号：US20210300017A1

公开(公告)日：2021-09-30

申请号：US16328419

申请日：2017-08-29

申请人： Jetronica Limited

发明人： Alan Hudd ,  Albert Kocsis

IPC分类号： B41J2/025 ,  B41J2/04

摘要： An industrial printhead (100) comprising a flow channel enclosed in a chamber, wherein the flow channel (102) has at least one fluid inlet (102a) and at least one fluid outlet (102b), wherein the flow channel is resonated, in use, by a vibration distributor (104) comprising a mass resonator (103), piezoelectric exciter (108) and wave concentrator (110) arranged in an axial configuration.

公开(公告)号：US11027540B2

公开(公告)日：2021-06-08

申请号：US16496127

申请日：2018-03-12

申请人： Hitachi Industrial Equipment Systems Co., Ltd.

发明人： Tsuneaki Takagishi ,  Manabu Kato ,  An Kyu

IPC分类号： B41J2/025 ,  B41J2/085 ,  B41J2/13

摘要： An object of the present invention is to provide an inkjet recording device capable of adjusting a clearance between prints formed by two nozzles (114, 115), and capable of printing a print content at a high speed. In order to achieve the object, there is provided an inkjet recording device which has two sub-print heads including nozzles (114, 115), charging electrodes (116, 117), deflection electrodes (118, 119), and gutters (120, 121), in which the two nozzles are disposed in a deflection direction of ink particles, and which performs printing on a printed object (124) while moving the printed object (124) relative to the ink particles in a direction substantially perpendicular to the deflection direction of the ink particles, the inkjet recording device having a function for reducing a clearance between print results (125, 126), printed by the two nozzles (114, 115), by controlling a voltage applied to the charging electrodes (116, 117) and a voltage applied to the deflection electrode (118, 119).

公开(公告)号：US10160214B2

公开(公告)日：2018-12-25

申请号：US15804332

申请日：2017-11-06

申请人： SEIKO EPSON CORPORATION

发明人： Shunya Fukuda

IPC分类号： B41J2/165 ,  B41J2/025 ,  B41J2/045 ,  B41J2/19 ,  B41J2/20 ,  B41J2/21 ,  B41J2/14 ,  B41J19/66 ,  B41J19/68

摘要： A liquid ejecting apparatus includes a liquid ejecting head including a substrate where a plurality of hollow portions are formed, a flexible plane that delimits a part of the hollow portion, and a piezoelectric element provided corresponding to the hollow portion, an inspection mechanism that inspects ejection of liquid from a nozzle based on an electromotive force of the piezoelectric element, and a signal generation circuit that generates a first drive signal and a second drive signal. The second drive signal maintains a state, where a second vibration portion including the second piezoelectric element and the flexible plane corresponding to the second piezoelectric element is deformed, during a detection period in which the inspection mechanism performs inspection based on vibration caused when a first vibration portion including the first piezoelectric element and the flexible plane corresponding to the first piezoelectric element is driven.

公开(公告)号：US09174434B2

公开(公告)日：2015-11-03

申请号：US13866082

申请日：2013-04-19

申请人： Johanathan Morgan ,  Johanathan Harvey Lucas

发明人： Johanathan Morgan ,  Johanathan Harvey Lucas

IPC分类号： B41J2/02 ,  B41J2/025

CPC分类号： B41J2/025

摘要： The present invention provides a droplet generator (10) of the velocity modulation type, the generator (10) being configured so that substantially all the modulation energy generated by piezo-electric crystals (60) is transformed into vibration of the nozzle (34). The generator preferably also includes an internal closure mechanism (70) which blocks off the nozzle (34) when the generator is not in operation, but which is de-coupled from the modulation process when the generator is operating.

摘要翻译： 本发明提供了一种速度调制型的液滴发生器（10），发生器（10）被配置为使得压电晶体（60）产生的基本上所有调制能量都转变成喷嘴（34）的振动。 发电机优选地还包括内部闭合机构（70），当发电机不工作时，内部闭合机构（70）阻挡喷嘴（34），但是当发电机工作时，其从调制过程中去耦合。

公开(公告)号：US07976891B1

公开(公告)日：2011-07-12

申请号：US11305662

申请日：2005-12-16

申请人： Jason Van Sciver ,  Yung-Ming Chen ,  Lothar Kleiner

发明人： Jason Van Sciver ,  Yung-Ming Chen ,  Lothar Kleiner

IPC分类号： B01J19/08 ,  B41J2/045 ,  B41J2/025 ,  H01L41/00 ,  B05D3/00 ,  B06B1/00

CPC分类号： B05D1/002

摘要： The apparatus and method use an optical feedback system to align a transducer with a stent strut. Once alignment is achieved, the transducer causes a coating to be ejected onto the stent strut and the transducer is moved along the stent strut to coat the stent strut.

摘要翻译： 该装置和方法使用光学反馈系统将换能器与支架支柱对准。 一旦达到定位，换能器将涂层喷射到支架支柱上，并且换能器沿着支架支柱移动以涂覆支架支柱。

公开(公告)号：US07396097B2

公开(公告)日：2008-07-08

申请号：US10752304

申请日：2004-01-05

申请人： Satoshi Yamazaki ,  Koichi Yoshizawa

发明人： Satoshi Yamazaki ,  Koichi Yoshizawa

IPC分类号： B41J2/025

CPC分类号： B41J2/2107

摘要： The conventional print-controlling apparatus performs printing with CMY inks and additional inks having a lower lightness than CMY inks, which are mixed in a specific ratio when ejected from the print head, so that colors in the entire range from low to high lightness are expressed. Unfortunately, chromatic color inks differing in hue from CMY inks have a low lightness or a high density, and this leads to poor granularity in the region of high lightness. This disadvantage is eliminated if color conversion is accomplished by using the granularity improvement LUT 15c that limits the deposition of RV inks. In this way it is possible to limit the ejection of RV inks in the region of high lightness and to improve the ink granularity in the region of high lightness.

公开(公告)号：US20080036812A1

公开(公告)日：2008-02-14

申请号：US11891071

申请日：2007-08-08

申请人： Toshiaki Kakutani

发明人： Toshiaki Kakutani

IPC分类号： B41J2/025

CPC分类号： B41J19/145 ,  B41J2/2128 ,  H04N1/4051

摘要： This invention provides a printing method of printing on a print medium with a print unit having a printing head. The method includes: generating dot data representing a status of dot formation on each print pixel of a print image to be formed on the print medium, by performing halftone process on image data representing a tone value of each pixel making up an original image to determine the status of dot formation; and printing a print image by forming dots on each print pixel of the print medium according to the dot data during both forward scan and backward scan of the printing head while performing main scan of the printing head. The printing includes: forming the print image by mutually combining dots formed on a first pixel group and dots formed on a second pixel group, the first pixel group being composed of a plurality of print pixels for which dots are formed during the forward scan of the printing head, the second pixel group being composed of a plurality of print pixels for which dots are formed during the backward scan of the printing head, in a common print area; and adjusting the print unit to reduce mutual misalignment of dot formation position in the main scanning direction between dots formed during the forward scan and dots formed during the backward scan for a specific dot making up specific binary image represented only by maximum and minimum values of the tone values. The generating includes setting a condition of the halftone process to reduce potential deterioration of picture quality due to a positional misalignment between the dots formed on the first pixel position group and the dots formed on the second pixel position group.

摘要翻译： 本发明提供一种在具有打印头的打印单元的打印介质上进行打印的打印方法。 该方法包括：通过对表示构成原始图像的每个像素的色调值的图像数据执行半色调处理，生成表示要在打印介质上形成的打印图像的每个打印像素上的点形成状态的点数据，以确定 点形成的状态; 并且在执行打印头的主扫描期间在打印头的正向扫描和向后扫描期间根据点数据在打印介质的每个打印像素上形成点来打印打印图像。 打印包括：通过相互组合形成在第一像素组上的点和形成在第二像素组上的点来形成打印图像，第一像素组由在正向扫描期间形成点的多个打印像素组成 打印头，所述第二像素组由在打印头的向后扫描期间形成点的多个打印像素组成;在公共打印区域中; 并且调整打印单元，以减少在正向扫描期间形成的点之间的主扫描方向上的点形成位置和在向后扫描期间形成的点之间的点形成位置的相互不对准，用于构成仅由最大值和最小值表示的特定二进制图像的特定点 色调值。 该产生包括设置半色调处理的条件，以减少由于形成在第一像素位置组上的点与形成在第二像素位置组上的点之间的位置偏移导致的图像质量的潜在恶化。

公开(公告)号：US20050279851A1

公开(公告)日：2005-12-22

申请号：US11147982

申请日：2005-06-06

申请人： Yehuda Ivri

发明人： Yehuda Ivri

IPC分类号： A61M11/00 ,  A61M15/00 ,  A61M16/00 ,  B05B11/02 ,  B05B12/08 ,  B05B17/00 ,  B05B17/06 ,  B41J2/025 ,  B41J2/04 ,  G01D15/16 ,  B05B17/04

CPC分类号： B05B12/08 ,  A61M11/005 ,  A61M11/006 ,  A61M15/0065 ,  A61M15/0081 ,  A61M15/0085 ,  A61M15/025 ,  A61M2016/0039 ,  A61M2205/3306 ,  A61M2205/3379 ,  A61M2205/3382 ,  A61M2205/3386 ,  A61M2205/3389 ,  A61M2205/8206 ,  B05B17/0646 ,  B05B17/0676 ,  B05B17/0684 ,  B41J2/025 ,  B41J2/04 ,  B41J2202/15

摘要： The invention provides exemplary methods and apparatus for dispensing liquids as an atomized spray. In one particularly preferably method, a liquid is dispensed as an atomized spray from a vibratable member having a front surface and a rear surface, with the member having at least one tapered hole between the surfaces for dispensing the liquid. The tapered hole has a larger cross-sectional area at the rear surface than at the front surface. The liquid is delivered from a supply container to the rear surface of the vibratable member in an amount sufficient to cover the hole with liquid. The vibratable member is then vibrated to dispense at least a portion of the liquid through the hole and from the front surface. Additional liquid is delivered from the supply container and to the rear surface in volumes that are substantially equal to the volumes dispensed.

摘要翻译： 本发明提供了用于将液体分配为雾化喷雾的示例性方法和装置。 在一个特别优选的方法中，液体作为雾化喷雾从具有前表面和后表面的可振动构件分配，该构件在表面之间具有用于分配液体的至少一个锥形孔。 锥形孔的后表面的横截面积比前表面的截面积大。 液体从供应容器以足以用液体覆盖孔的量被输送到可振动构件的后表面。 然后可振动的构件被振动以通过孔和从前表面分配至少一部分液体。 额外的液体从供应容器和后表面以基本上等于分配的体积的量输送。