公开(公告)号：US07334876B2

公开(公告)日：2008-02-26

申请号：US11097212

申请日：2005-04-04

申请人： Kia Silverbrook ,  Gregory John McAvoy ,  Angus John North ,  Samuel George Mallinson ,  Mehdi Azimi

发明人： Kia Silverbrook ,  Gregory John McAvoy ,  Angus John North ,  Samuel George Mallinson ,  Mehdi Azimi

IPC分类号： B41J2/04

CPC分类号： B41J2/14427 ,  B41J2/1412 ,  B41J2/1603 ,  B41J2/1626 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1635 ,  B41J2/1639 ,  B41J2/1642 ,  B41J2/1648 ,  B41J2002/1437 ,  B41J2002/14491 ,  B41J2202/20

摘要： A thermal inkjet printhead with generally planar heater elements disposed in respective bubble forming chambers, whereby the area of each heater is less than 300 μm2. The heater area influences the energy required to heat the heater volume up to the fluid superheat limit; the energy required to heat the protective coatings covering the heater to the superheat limit; the heat that diffuses into the underlayer prior to bubble nucleation; and, the heat that diffuses into the ink prior to bubble nucleation. Reducing the surface area of the heater reduces all of these terms and has a significant impact on the energy required to form a bubble and eject ink.

摘要翻译： 一种热喷墨打印头，其具有设置在相应的气泡形成室中的大致平面的加热器元件，由此每个加热器的面积小于300μm2。 加热器区域影响将加热器体积加热到流体过热极限所需的能量; 将覆盖加热器的保护涂层加热至过热极限所需的能量; 在气泡成核之前扩散到底层的热量; 以及在气泡成核之前扩散到油墨中的热量。 减少加热器的表面积减少了所有这些术语，并且对形成气泡和喷射墨水所需的能量具有显着的影响。

公开(公告)号：US07128400B1

公开(公告)日：2006-10-31

申请号：US10728952

申请日：2003-12-08

申请人： Kia Silverbrook ,  Angus John North ,  Gregory John McAvoy

发明人： Kia Silverbrook ,  Angus John North ,  Gregory John McAvoy

IPC分类号： B41J2/04

CPC分类号： B41J2/14427 ,  B41J2/04518 ,  B41J2/0452 ,  B41J2/04555 ,  B41J2/0457 ,  B41J2/0458 ,  B41J2/04588 ,  B41J2/1404 ,  B41J2/14072 ,  B41J2/1408 ,  B41J2/1412 ,  B41J2/155 ,  B41J2/1601 ,  B41J2/1603 ,  B41J2/1623 ,  B41J2/1626 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1635 ,  B41J2/1639 ,  B41J2/1642 ,  B41J2/1646 ,  B41J2002/14475 ,  B41J2002/14491 ,  B41J2202/11 ,  B41J2202/19 ,  B41J2202/20 ,  B41J2202/21

摘要： There is disclosed an ink jet printhead which comprises a plurality of nozzles and one or more heater elements corresponding to each nozzle. Each heater element is configured to heat a bubble forming liquid in the printhead to a temperature above its boiling point to form a gas bubble therein. The generation of the bubble causes the ejection of a drop of an ejectable liquid (such as ink) through an ejection aperture in each nozzle, to effect printing. In each nozzle, less than 200 nanoJoules of energy is transferred to the heater element in order to form the gas bubble that causes the ejection of the drop of ejectable liquid. This configuration provides for very efficient operation.

摘要翻译： 公开了一种喷墨打印头，其包括多个喷嘴和对应于每个喷嘴的一个或多个加热元件。 每个加热器元件构造成将打印头中的起泡液体加热至高于其沸点的温度，以在其中形成气泡。 气泡的产生导致通过每个喷嘴中的喷射孔喷出一滴可喷射液体（例如墨水），以实现打印。 在每个喷嘴中，将小于200纳摩尔的能量转移到加热器元件，以便形成导致喷射液滴的气泡。 该配置提供非常有效的操作。

公开(公告)号：US08342657B2

公开(公告)日：2013-01-01

申请号：US12711264

申请日：2010-02-24

申请人： Kia Silverbrook ,  Gregory John McAvoy ,  Angus John North ,  Samuel George Mallinson ,  Mehdi Azimi ,  Paul Justin Reichl

发明人： Kia Silverbrook ,  Gregory John McAvoy ,  Angus John North ,  Samuel George Mallinson ,  Mehdi Azimi ,  Paul Justin Reichl

IPC分类号： B41J2/05

CPC分类号： B41J2/1642 ,  B41J2/1412 ,  B41J2/155 ,  B41J2/1601 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1639 ,  B41J2/1645 ,  B41J2/1646 ,  B41J2002/1437 ,  B41J2002/14491 ,  B41J2202/20

摘要： An inkjet nozzle assembly has a chamber with a nozzle opening for ejecting a liquid, a heater element disposed in the chamber, and a dielectric layer sandwiched between the heater element and a wall of the chamber. The dielectric layer has a thermal product of less than 1495 Jm−2K−1s−1/2. The thermal product is defined as (ρCk)1/2, where ρ is the density of the layer, C is specific heat of the layer and k is thermal conductivity of the layer.

摘要翻译： 喷墨喷嘴组件具有：具有用于喷射液体的喷嘴开口的腔室，设置在腔室中的加热器元件以及夹在加热器元件和腔室壁之间的电介质层。 电介质层具有小于1495Jm-2K-1s-1/2的热产物。 热产品定义为（＆rgr; Ck）1/2，其中＆rgr; 是层的密度，C是层的比热，k是层的热导率。

公开(公告)号：US07874638B2

公开(公告)日：2011-01-25

申请号：US12103706

申请日：2008-04-16

申请人： Kia Silverbrook ,  Gregory John McAvoy ,  Angus John North

发明人： Kia Silverbrook ,  Gregory John McAvoy ,  Angus John North

IPC分类号： B41J2/155

CPC分类号： B41J2/1412 ,  B41J2/1601 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1639 ,  B41J2/1642 ,  B41J2/1645 ,  B41J2/1646 ,  B41J2002/1437 ,  B41J2002/14475 ,  B41J2002/14491 ,  B41J2202/03 ,  B41J2202/20

摘要： The invention provides for a printhead assembly for a pagewidth printer. The assembly includes a substrate channel, an ink hose, a support plate, an extrusion and a cover plate. The substrate channel operatively positions a plurality of printhead modules to form a pagewidth printhead module assembly. The ink hose is positioned within the substrate channel to supply the printhead modules with ink, and the support plate encloses the ink hose within the substrate channel. The extrusion houses bus bars operatively providing electrical power to the printhead modules, and the cover plate secures a flex printed circuit board (PCB) in the assembly, the PCB forming a data bus to the printhead modules.

摘要翻译： 本发明提供了一种用于页宽打印机的打印头组件。 组件包括衬底通道，墨水软管，支撑板，挤压件和盖板。 基板通道可操作地定位多个打印头模块以形成页宽打印头模块组件。 墨水软管定位在基板通道内，以向打印头模块提供墨水，并且支撑板将墨水软管包封在基板通道内。 挤压器将汇流条可操作地向打印头模块提供电力，并且盖板将柔性印刷电路板（PCB）固定在组件中，PCB形成到打印头模块的数据总线。

公开(公告)号：US20100220142A1

公开(公告)日：2010-09-02

申请号：US12778115

申请日：2010-05-11

申请人： Kia Silverbrook ,  Angus John North ,  Gregory John McAvoy

发明人： Kia Silverbrook ,  Angus John North ,  Gregory John McAvoy

IPC分类号： B41J2/015

CPC分类号： B41J2/14427 ,  B41J2/04518 ,  B41J2/0452 ,  B41J2/04555 ,  B41J2/0457 ,  B41J2/0458 ,  B41J2/04588 ,  B41J2/1404 ,  B41J2/14072 ,  B41J2/1408 ,  B41J2/1412 ,  B41J2/155 ,  B41J2/1601 ,  B41J2/1603 ,  B41J2/1623 ,  B41J2/1626 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1635 ,  B41J2/1639 ,  B41J2/1642 ,  B41J2/1646 ,  B41J2002/14475 ,  B41J2002/14491 ,  B41J2202/11 ,  B41J2202/19 ,  B41J2202/20 ,  B41J2202/21

摘要： An inkjet printhead that has an elongate chassis, first groups of apertures spaced along the elongate chassis, an ink distribution unit defining a plurality of ink distribution passages and second groups of apertures in fluid communication with respective ink distribution passages, the ink distribution unit being mounted to the elongate chassis so that the first group of apertures and the second group of apertures coincide and, a plurality of printhead modules for ejecting ink supplied through the ink distribution passages and the aligned first and second groups.

摘要翻译： 一种具有细长底盘的喷墨打印头，沿着细长底盘间隔开的第一组孔，分配墨水分配单元，其限定多个墨水分配通道和与相应墨水分配通道流体连通的第二组孔，墨水分配单元被安装 以使得第一组孔和第二组孔重合，以及多个打印头模块，用于喷射通过油墨分配通道供应的油墨和对准的第一和第二组。

公开(公告)号：US20100149279A1

公开(公告)日：2010-06-17

申请号：US12711264

申请日：2010-02-24

申请人： Kia Silverbrook ,  Gregory John McAvoy ,  Angus John North ,  Samuel George Mallinson ,  Mehdi Azimi ,  Paul Justin Reichl

发明人： Kia Silverbrook ,  Gregory John McAvoy ,  Angus John North ,  Samuel George Mallinson ,  Mehdi Azimi ,  Paul Justin Reichl

IPC分类号： B41J2/05

CPC分类号： B41J2/1642 ,  B41J2/1412 ,  B41J2/155 ,  B41J2/1601 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1639 ,  B41J2/1645 ,  B41J2/1646 ,  B41J2002/1437 ,  B41J2002/14491 ,  B41J2202/20

摘要： An inkjet nozzle assembly has a chamber with a nozzle opening for ejecting a liquid, a heater element disposed in the chamber, and a dielectric layer sandwiched between the heater element and a wall of the chamber. The dielectric layer has a thermal product of less than 1495 Jm−2K−1s−1/2. The thermal product is defined as (ρCk)1/2, where ρ is the density of the layer, C is specific heat of the layer and k is thermal conductivity of the layer.

摘要翻译： 喷墨喷嘴组件具有：具有用于喷射液体的喷嘴开口的腔室，设置在腔室中的加热器元件以及夹在加热器元件和腔室壁之间的电介质层。 电介质层具有小于1495Jm-2K-1s-1/2的热产物。 热产品定义为（＆rgr; Ck）1/2，其中＆rgr; 是层的密度，C是层的比热，k是层的热导率。

公开(公告)号：US07637593B2

公开(公告)日：2009-12-29

申请号：US11782595

申请日：2007-07-24

申请人： Kia Silverbrook ,  Angus John North ,  Samuel George Mallinson ,  Mehdi Azimi ,  Gregory John McAvoy

发明人： Kia Silverbrook ,  Angus John North ,  Samuel George Mallinson ,  Mehdi Azimi ,  Gregory John McAvoy

IPC分类号： B41J2/14 ,  B41J2/16

CPC分类号： B41J2/1601 ,  B41J2/1412 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1639 ,  B41J2/1642 ,  B41J11/0095 ,  B41J13/103 ,  B41J2002/14475 ,  B41J2002/14491 ,  B41J2202/20

摘要： A inkjet printhead with heater elements adjacent an array of respective nozzles for heating a water-based printing fluid to form a gas bubble for ejecting a drop of the printing fluid from the nozzle. The heater is separated from the nozzle by less than 5 μm at their closest points and the nozzle length is less than 5 μm. The volume of liquid between the heater and the nozzle determines the inertia of the liquid and its acceleration in response to bubble formation. Moving the heater closer to the nozzle reduces the inertia of the liquid and increases its acceleration, so a lower bubble impulse is needed to eject a drop. This allows the printhead to use smaller heater elements with lower power requirements. Viscous drag in the nozzle reduces the momentum of fluid flowing through the nozzle. The viscous drag increases as the nozzle length (in the direction of fluid flow) increases. By reducing the nozzle length, a lower bubble impulse is needed to eject a drop. This also allows the printhead to use smaller heater elements with lower power requirements.

摘要翻译： 一种喷墨打印头，其具有与相应喷嘴阵列相邻的加热器元件，用于加热水性印刷流体以形成用于从喷嘴喷出一滴印刷液体的气泡。 加热器在最近的点处与喷嘴分开小于5um，喷嘴长度小于5um。 加热器和喷嘴之间的液体体积决定了液体的惯性及其响应气泡形成的加速度。 将加热器靠近喷嘴移动可减少液体的惯性并增加其加速度，因此需要较低的气泡脉冲来喷射液滴。 这允许打印头使用具有较低功率要求的较小的加热器元件。 喷嘴中的粘性阻力减小了流经喷嘴的流体的动量。 随着喷嘴长度（在流体流动方向），粘性阻力增加。 通过减小喷嘴长度，需要较低的气泡脉冲来喷射液滴。 这也允许打印头使用较低功率要求的较小的加热元件。

公开(公告)号：US20080136871A1

公开(公告)日：2008-06-12

申请号：US12034578

申请日：2008-02-20

申请人： Kia Silverbrook ,  Gregory John McAvoy ,  Angus John North

发明人： Kia Silverbrook ,  Gregory John McAvoy ,  Angus John North

IPC分类号： B41J2/05

CPC分类号： B41J2/1628 ,  B41J2/1404 ,  B41J2/14072 ,  B41J2/1412 ,  B41J2/1433 ,  B41J2/1601 ,  B41J2/1603 ,  B41J2/1623 ,  B41J2/1631 ,  B41J2/1639 ,  B41J2/1642 ,  B41J2002/14475 ,  B41J2002/14491 ,  B41J2202/03 ,  B41J2202/11 ,  B41J2202/19 ,  B41J2202/20

摘要： This invention provides for an inkjet printhead having an array of micro-electromechanical nozzles arrangements. Each nozzle arrangement includes side walls located on a wafer substrate with a roof layer deposited on said walls to define an ink chamber, with the roof layer defining a nozzle aperture. The nozzle arrangement also includes an inlet defined in the substrate to supply the ink chamber with printing fluid. Further includes is at least one heater element having a mass of less than 10 nanograms suspended between the side walls in the chamber, so that when electrical actuation energy of less than 500 nanojoules is applied to the heater element, a vapour bubble is formed in the fluid leading to a pressure increase in the chamber thereby ejecting the fluid via the nozzle aperture. The heater element has an annular shape with a point of collapse of the bubble near a centre thereof.

摘要翻译： 本发明提供一种具有微机电喷嘴布置阵列的喷墨打印头。 每个喷嘴装置包括位于晶片衬底上的侧壁，其顶部层沉积在所述壁上以限定油墨室，屋顶层限定喷嘴孔。 喷嘴布置还包括限定在基板中的入口，以向墨室提供印刷流体。 还包括至少一个加热器元件，其具有悬浮在室中的侧壁之间的小于10纳克的质量，使得当小于500纳小时的电致动能量被施加到加热器元件时，在 流体导致室中的压力增加，从而经由喷嘴孔喷射流体。 加热器元件具有环形形状，气泡在其中心附近具有塌陷点。

公开(公告)号：US07147306B2

公开(公告)日：2006-12-12

申请号：US11212637

申请日：2005-08-29

申请人： Kia Silverbrook ,  Angus John North ,  Samuel George Mallinson ,  Mehdi Azimi ,  Gregory John McAvoy

发明人： Kia Silverbrook ,  Angus John North ,  Samuel George Mallinson ,  Mehdi Azimi ,  Gregory John McAvoy

IPC分类号： B41J2/05

CPC分类号： B41J2/1601 ,  B41J2/1404 ,  B41J2/14072 ,  B41J2/1412 ,  B41J2/1603 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1635 ,  B41J2/1639 ,  B41J2/1642 ,  B41J2/1645 ,  B41J2/1646 ,  B41J2002/14362 ,  B41J2002/1437 ,  B41J2002/14475 ,  B41J2002/14491 ,  B41J2202/19 ,  B41J2202/20 ,  B41J2202/21

摘要： A thermal inkjet printhead with heater elements disposed in respective bubble forming chambers for heating part of the ejectable liquid above its boiling point to form a gas bubble that causes the ejection of a drop of the ejectable liquid from the nozzle, wherein, the heater is separated from the nozzle by less than 5 μm at their closest points; the nozzle length is less than 5 μm; and the ejectable liquid has a viscosity less than 5 cP. The volume of liquid between the heater and the nozzle determines the inertia of the liquid and its acceleration in response to bubble formation. Moving the heater closer to the nozzle reduces the inertia of the liquid and increases its acceleration, so a lower bubble impulse is needed to eject a drop. This allows the printhead to use smaller heater elements with lower power requirements. Viscous drag in the nozzle reduces the momentum of fluid flowing through the nozzle. The viscous drag increases as the nozzle length (in the direction of fluid flow) increases. By reducing the nozzle length, a lower bubble impulse is needed to eject a drop. This also allows the printhead to use smaller heater elements with lower power requirements.

摘要翻译： 一种热喷墨打印头，其具有设置在相应的气泡形成室中的加热器元件，用于将可喷射液体的一部分加热到其沸点之上，以形成气泡，该气泡导致从喷嘴排出一滴可喷射液体，其中，加热器被分离 在最接近的点处，喷嘴小于5um; 喷嘴长度小于5um; 并且可喷射液体的粘度小于5cP。 加热器和喷嘴之间的液体体积决定了液体的惯性及其响应气泡形成的加速度。 将加热器靠近喷嘴移动可减少液体的惯性并增加其加速度，因此需要较低的气泡脉冲来喷射液滴。 这允许打印头使用具有较低功率要求的较小的加热器元件。 喷嘴中的粘性阻力减小了流经喷嘴的流体的动量。 随着喷嘴长度（在流体流动方向），粘性阻力增加。 通过减小喷嘴长度，需要较低的气泡脉冲来喷射液滴。 这也允许打印头使用较低功率要求的较小的加热元件。

公开(公告)号：US07101025B2

公开(公告)日：2006-09-05

申请号：US11132375

申请日：2005-05-19

申请人： Kia Silverbrook ,  Angus John North ,  Gregory John McAvoy

发明人： Kia Silverbrook ,  Angus John North ,  Gregory John McAvoy

IPC分类号： B41J2/05

CPC分类号： B41J2/1629 ,  B41J2/1412 ,  B41J2/1603 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1642 ,  B41J2/1646 ,  B41J2002/14475 ,  B41J2002/14491 ,  B41J2202/20

摘要： There is disclosed an inkjet printhead integrated which comprises drive circuitry, a plurality of nozzles and one or more heater elements corresponding to each nozzle. Each heater element is configured to heat a bubble forming liquid in the printhead to a temperature above its boiling point to form a gas bubble therein. The generation of the bubble causes the ejection of a drop of an ejectable liquid (such as ink) through respective corresponding nozzle, to effect printing. Each heater element has a surface area to volume ratio greater than 4:1. This configuration ensures that heat is quickly transferred from the elements to the ink for efficient operation and minimal heating of the printhead substrate.