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1. 发明申请

WO2017118843A1 DROPLET DEPOSITION HEAD AND ACTUATOR COMPONENT THEREFOR 审中-公开
标题翻译：滴落头和致动器部件
公开(公告)号：WO2017118843A1
公开(公告)日：2017-07-13
申请号：PCT/GB2016/054095
申请日：2016-12-30
申请人： XAAR TECHNOLOGY LIMITED , CONDIE, Angus , JACKSON, Nicholas Marc , HUBBARD, Simon James
发明人： CONDIE, Angus , JACKSON, Nicholas Marc , HUBBARD, Simon James
IPC分类号： B41J2/14
CPC分类号： B41J2/14209 , B41J2/14233 , B41J2002/14241 , B41J2002/14491
摘要： An actuator component for a droplet deposition head that includes: a plurality of fluid chambers arranged side-by-side in an array, with certain of the fluid chambers being firing chambers, each of which is provided with at least one piezoelectric actuating element for causing droplet ejection from a nozzle for that firing chamber; and a plurality of non-actuable walls, each of which is formed of piezoelectric material and bounds at least one of the firing chambers. Each of the piezoelectric actuating elements is provided with at least a first and a second actuation electrode, the first and second actuation electrodes for each piezoelectric actuating element being configured to apply a drive waveform to that piezoelectric actuating element, which is thereby deformed, thus causing droplet ejection. Each of the non-actuable walls is provided with at least a first and a second isolated electrode, the first and second isolated electrodes for each non-actuable wall being electrically isolated so that, when fluid within one of the at least one of said firing chambers bounded by that non-actuable wall applies a force to that non-actuable wall.
摘要翻译：一种用于液滴沉积头的致动器部件，其包括：以阵列并排布置的多个流体腔室，其中某些流体腔室是发射腔室，每个流体腔室设置有至少一个压电致动元件，用于从该喷射室的喷嘴引起液滴喷射; 以及多个不可致动的壁，每个壁由压电材料形成并限制至少一个发射室的边界。每个压电致动元件设置有至少第一致动电极和第二致动电极，用于每个压电致动元件的第一致动电极和第二致动电极被配置为向该压电致动元件施加驱动波形，该压电致动元件由此变形，从而导致液滴喷射。每个非致动壁设置有至少第一和第二隔离电极，用于每个非致动壁的第一和第二隔离电极电隔离，使得当在至少一个所述触发由不可驱动壁限制的腔室对该不可驱动壁施加力。

2. 发明申请

WO2014023981A1 DROPLET DEPOSITION APPARATUS AND METHOD FOR DEPOSITING DROPLETS OF FLUID 审中-公开
标题翻译：浮选沉积装置和沉积流体液滴的方法
公开(公告)号：WO2014023981A1
公开(公告)日：2014-02-13
申请号：PCT/GB2013/052146
申请日：2013-08-12
申请人： XAAR TECHNOLOGY LIMITED , DRURY, Paul Raymond , CONDIE, Angus , KANARIS, Athanasios
发明人： DRURY, Paul Raymond , CONDIE, Angus , KANARIS, Athanasios
IPC分类号： B41J2/14
CPC分类号： B41J2/14209 , B41J2002/14475 , B41J2202/08 , B41J2202/11 , B41J2202/12
摘要： A droplet ejection apparatus, such as an inkjet printhead, having improved productivity that includes: an array of elongate fluid chambers (2), with each chamber communicating with a nozzle (6), the array extending in an array direction; a common fluid inlet manifold (4); a common fluid outlet manifold (5); and a fluid supply that generates a through-flow of fluid from the common fluid inlet manifold, through each chamber in the array and into the common fluid outlet manifold; the two walls defining each chamber are formed from piezoelectric material so as to effect droplet ejection from the nozzle; this ejection flow occurs simultaneously with the through flow, which may have a larger value than the maximum ejection flow; each nozzle may be elongate parallel to the length of its chamber and/or may have an outlet with an area conferring advantages in terms of productivity and temperature control.
摘要翻译：具有提高的生产率的液滴喷射装置，例如喷墨打印头，其包括：细长流体室（2）的阵列，每个室与喷嘴（6）连通，所述阵列沿排列方向延伸; 公共流体入口歧管（4）; 公共流体出口歧管（5）; 以及流体供应，其从所述公共流体入口歧管产生流体的流动，通过所述阵列中的每个室并进入所述公共流体出口歧管; 限定每个室的两个壁由压电材料形成，以便实现从喷嘴的液滴喷射; 该喷射流与通流同时发生，其可以具有比最大喷射流更大的值; 每个喷嘴可以平行于其腔室的长度伸长和/或可以具有在生产率和温度控制方面具有优势的区域的出口。

3. 发明申请

WO2018206969A1 CERAMIC 审中-公开
公开(公告)号：WO2018206969A1
公开(公告)日：2018-11-15
申请号：PCT/GB2018/051269
申请日：2018-05-10
申请人： XAAR TECHNOLOGY LIMITED , IONIX ADVANCED TECHNOLOGIES LTD
发明人： WATSON, Michael , CONDIE, Angus , COMYN, Timothy Paul , BELL, Andrew
IPC分类号： C04B35/26 , C04B35/462 , C04B35/475 , H01L41/43 , H01L41/00 , H01L41/187 , C04B35/626 , B41J2/14 , C04B35/64 , C04B35/645
摘要： There is disclosed a piezoelectric ceramic having the composition: a [PbTiO 3 ]- b [SrTiO 3 ] - c [BiFeO 3 ] - d [(K x Bi 1- x )TiO 3 ]; wherein 0.4 a b ≤ 0.2; c ≥ 0.05; d ≥ 0.01; and a + b + c + d =1 optionally comprising an A- or B-site metal dopant in an amount of up to 2 at.%.

4. 发明申请

WO2020234592A1 PIEZOELECTRIC DROPLET DEPOSITION APPARATUS OPTIMISED FOR HIGH VISCOSITY FLUIDS, AND METHODS AND CONTROL SYSTEM THEREFOR 审中-公开
公开(公告)号：WO2020234592A1
公开(公告)日：2020-11-26
申请号：PCT/GB2020/051234
申请日：2020-05-20
申请人： XAAR TECHNOLOGY LIMITED
发明人： JACKSON, Nicholas Marc , CONDIE, Angus , VOIT, Wolfgang , COX, Andrew , REDDISH, Michael
IPC分类号： B41J2/045 , B41J2/14 , C09D11/00
摘要： A droplet deposition apparatus comprising a droplet deposition head, a fluid supply and a controller, wherein: the droplet deposition head comprises one or more fluid chambers each having a nozzle, a fluid inlet path having a fluid inlet into the head, and ending in the one or more nozzles, and a fluid return path starting at the one or more nozzles and ending in a fluid return of the head; each fluid chamber comprises two opposing chamber walls comprising piezoelectric material and deformable upon application of an electric drive signal so as to eject a fluid droplet from the nozzle; the fluid supply is configured to supply a fluid to the fluid inlet at a differential pressure as measured between the fluid inlet and the fluid return; and the controller is configured to apply a drive signal to the piezoelectric chamber walls such that the nozzle or nozzles deposit droplets of a fluid having a viscosity in the range from 45 mPa∙s to 130 mPa∙s at a jetting temperature between 20°C and 90°C, and wherein the differential pressure applied by the fluid supply causes a fluid return flow into the fluid return at a rate of between 50 ml/min and 200 ml/min. A method of operating the droplet deposition apparatus, and a control system for carrying out the method, are also provided.

5. 发明申请

WO2018224821A9 METHOD AND APPARATUS FOR DROPLET DEPOSITION 审中-公开
公开(公告)号：WO2018224821A9
公开(公告)日：2018-12-13
申请号：PCT/GB2018/051537
申请日：2018-06-06
申请人： XAAR TECHNOLOGY LIMITED
发明人： JACKSON, Nicholas, Marc , CONDIE, Angus
IPC分类号： B41J2/14 , B41J2/045
摘要： A method for depositing droplets onto a medium, utilising a droplet deposition head is provided. The head used in the method includes: an array of fluid chambers separated by interspersed walls, each fluid chamber communicating with an aperture for the release of fluid droplets and each wall separating two neighbouring chambers. Each wall is actuable such that, in response to a first voltage, it will deform so as to decrease the volume of one chamber and increase the volume of the other chamber, and, in response to a second voltage, it will deform so as to cause the opposite effect on the volumes of its neighbouring chambers. The method includes the steps of: receiving input data; assigning, based on such input data, all the chambers within the array as either firing chambers or non-firing chambers, so as to produce bands of one or more contiguous firing chambers separated by bands of one or more contiguous non-firing chambers; actuating the walls of certain of the chambers such that: for each non-firing chamber, either one wall is stationary while the other is moved, or the walls move with the same sense, or they remain stationary; and, for each firing chamber the walls move with opposing senses; such actuations result in each firing chamber releasing at least one droplet, the resulting droplets forming bodies of fluid disposed on a line on the medium, such bodies of fluid being separated on the line by respective gaps for each of the bands of non-firing chambers, the size of each such gap generally corresponding in size to the respective band of non-firing chambers. The actuations of the walls of said firing chambers in the actuating step are such that, if only one of the two walls of each firing chamber were actuated in such manner, no droplets would be ejected from that firing chamber. A droplet deposition apparatus, a droplet deposition head and a computer program product are also provided.

6. 发明申请

WO2021069885A1 PREDICTIVE INK DELIVERY SYSTEM AND METHODS OF USE 审中-公开
公开(公告)号：WO2021069885A1
公开(公告)日：2021-04-15
申请号：PCT/GB2020/052473
申请日：2020-10-07
申请人： XAAR TECHNOLOGY LIMITED
发明人： CONDIE, Angus , SPEED, David , TRIP, Renzo
IPC分类号： B41J3/407 , B41J2/175
摘要： A sub-controller (20), controller (30), fluid supply system and apparatus for printing and a method for printing. Provided is a processor controlled sub-controller (20) for controlling the fluid pressure in one or more droplet ejection heads (60); wherein said controller (30) is configured to receive a droplet ejection head movement profile for each of said one or more droplet ejection heads (60), determine a respective induced fluid pressure profile at one or more predetermined locations for each of said one or more droplet ejection heads (60) using the respective droplet ejection head movement profile; and generate respective pressure correction data for each of said one or more droplet ejection heads based on the respective induced fluid pressure profile and a predetermined pressure window to be maintained at said one or more droplet ejection heads (60). Also provided is a method of printing using one or more droplet ejection heads (60) fluidically connected to a fluid supply system wherein said method comprises the steps of receiving droplet ejection head movement profile(s); determining a respective induced fluid pressure profile at one or more predetermined locations for each of said one or more droplet ejection heads using the respective droplet ejection head movement profile(s); generating respective pressure correction file(s) at said one or more predetermined locations based on said induced fluid pressure profile(s) and said predetermined pressure window.

7. 发明申请

WO2018224821A1 METHOD AND APPARATUS FOR DROPLET DEPOSITION 审中-公开
公开(公告)号：WO2018224821A1
公开(公告)日：2018-12-13
申请号：PCT/GB2018/051537
申请日：2018-06-06
申请人： XAAR TECHNOLOGY LIMITED
发明人： JACKSON, Nicholas, Marc , CONDIE, Angus
IPC分类号： B41J2/14 , B41J2/045
摘要： A method for depositing droplets onto a medium, utilising a droplet deposition head is provided. The head used in the method includes: an array of fluid chambers separated by interspersed walls, each fluid chamber communicating with an aperture for the release of fluid droplets and each wall separating two neighbouring chambers. Each wall is actuable such that, in response to a first voltage, it will deform so as to decrease the volume of one chamber and increase the volume of the other chamber, and, in response to a second voltage, it will deform so as to cause the opposite effect on the volumes of its neighbouring chambers. The method includes the steps of: receiving input data; assigning, based on such input data, all the chambers within the array as either firing chambers or non-firing chambers, so as to produce bands of one or more contiguous firing chambers separated by bands of one or more contiguous non-firing chambers; actuating the walls of certain of the chambers such that: for each non-firing chamber, either one wall is stationary while the other is moved, or the walls move with the same sense, or they remain stationary; and, for each firing chamber the walls move with opposing senses; such actuations result in each firing chamber releasing at least one droplet, the resulting droplets forming bodies of fluid disposed on a line on the medium, such bodies of fluid being separated on the line by respective gaps for each of the bands of non-firing chambers, the size of each such gap generally corresponding in size to the respective band of non-firing chambers. The actuations of the walls of said firing chambers in the actuating step are such that, if only one of the two walls of each firing chamber were actuated in such manner, no droplets would be ejected from that firing chamber. A droplet deposition apparatus, a droplet deposition head and a computer program product are also provided.

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