公开(公告)号：US4789425A

公开(公告)日：1988-12-06

申请号：US82417

申请日：1987-08-06

申请人： Donald J. Drake ,  William G. Hawkins ,  Stephen F. Pond ,  Michael R. Campanelli ,  Pamela J. Hartman ,  Raymond E. Bailey

发明人： Donald J. Drake ,  William G. Hawkins ,  Stephen F. Pond ,  Michael R. Campanelli ,  Pamela J. Hartman ,  Raymond E. Bailey

IPC分类号： B23P15/00 ,  B41J2/05 ,  B41J2/16 ,  G01D15/16

CPC分类号： B41J2/1628 ,  B23P15/00 ,  B41J2/1603 ,  B41J2/1623 ,  B41J2/1625 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1635 ,  B41J2/1642 ,  Y10T29/49083

摘要： A thermal ink jet printhead of the type which expels droplets on demand towards a recording medium from nozzles located above and generally parallel with the bubble generating heating elements contained therein is disclosed, together with fabrication processes therefor. The droplets are propelled along trajectories that are perpendicular to the heating element surfaces and from nozzles located in the printhead roof; such configuration is generally referred to as "roofshooter". Each printhead comprises a silicon heater plate and a fluid directing structural member. The heater plate has a linear array of heating elements associated addressing electrodes, and an elongated ink fill hole parallel with the heating element array. The structural member contains at least one recessed cavity, a plurality of nozzles, and a plurality of parallel walls within the recessed cavity which define individual ink channels for directing ink to the nozzles. The recessed cavity and fill hole are in communication with each other and form the ink reservoir within the printhead. The ink holding capacity of the fill hole is larger than that of the recessed cavity. The fill hole is precisely formed and positioned within the heater plate by anisotropic etching. The structural member may be fabricated either from two layers of photoresist, a two-stage flat nickel electroform, or a single photoresist layer and a single stage flat nickel electroform.

摘要翻译： 公开了一种根据需要将液滴从记录介质喷出的类型的热喷墨打印头，其喷嘴位于包含在其中的产生发泡元件的上方并大致平行的喷嘴及其制造工艺。 液滴沿着垂直于加热元件表面和位于打印头顶部的喷嘴的轨迹推进; 这种构造通常被称为“屋顶运动器”。 每个打印头包括硅加热器板和流体引导结构构件。 加热器板具有与寻址电极相关联的加热元件的线性阵列和与加热元件阵列平行的细长的墨水填充孔。 结构构件在凹腔内包含至少一个凹腔，多个喷嘴和多个平行壁，其限定用于将墨引导到喷嘴的各个墨通道。 凹腔和填充孔彼此连通并在打印头内形成墨水容器。 填充孔的油墨保持能力大于凹腔的油墨保持能力。 填充孔通过各向异性蚀刻精确地形成并定位在加热器板内。 结构构件可以由两层光致抗蚀剂，两级平面镍电铸或单一光致抗蚀剂层和单级平面镍电铸制成。

公开(公告)号：US4887098A

公开(公告)日：1989-12-12

申请号：US275991

申请日：1988-11-25

申请人： William G. Hawkins ,  Stephen F. Pond

发明人： William G. Hawkins ,  Stephen F. Pond

IPC分类号： B41J2/05

CPC分类号： B41J2/04548 ,  B41J2/04568 ,  B41J2/0457 ,  B41J2/0458 ,  B41J2002/14387 ,  B41J2202/13

摘要： A thermal ink jet printer utilizes a printhead whose electrical connections to the heating elements used to expel the ink droplets has been modified to reduce the effects of parasitic resistance of the common return when a number of resistors are simultaneously addressed. The common return, formed in the same substrate level as the resistor elements, has been modified by forming and interconnecting a second common return. The resistor is connected to an input source by a low resistance connection which is formed to cross-over, or under, the second common.

公开(公告)号：US08287066B2

公开(公告)日：2012-10-16

申请号：US12530854

申请日：2008-03-14

申请人： Christian Jackson ,  Stephen F. Pond

发明人： Christian Jackson ,  Stephen F. Pond

IPC分类号： B41J29/38 ,  B41J29/393 ,  B41J2/165

CPC分类号： B41J29/393 ,  B41J2/2139

摘要： This invention pertains to a drop-on-demand ink jet printing method, more particularly to a method of printing wherein a purge image is logically combined with a selected image so as to insure a desired amount of drop firing from every jet of an ink jet printhead for every page printed. The inventive method avoids image defects that could otherwise occur as a result of faulty drop firing from infrequently used nozzles. Purge image data that specifies the deposition of at least one ink dot on at least one predetermined pixel location on each of the plurality of image scanlines is constructed and stored in a purge image memory accessible by the printing apparatus. Imperceptible purge image patterns are constructed having blue noise spatial frequency characteristics and optical density levels equal to or less than 0.01 OD above print medium base OD. A plurality of purge image data sets are constructed and stored for retrieval to adapt to a variety of conditions. Acceptable purge image data sets are determined using a purge performance image as a test pattern which is optically scanned or analyzed by user observation. The present invention further include numerous printing apparatus configured to implement the disclosed methods of maintaining ink jet printheads.

摘要翻译： 本发明涉及一种按需喷墨打印方法，更具体地说涉及一种打印方法，其中吹扫图像与所选择的图像逻辑组合，以便确保每个喷墨喷嘴所需的液滴点火量 每页印刷的打印头。 本发明的方法避免了由于不经常使用的喷嘴发生故障滴落而导致的图像缺陷。 清除指定在多个图像扫描线中的每一个上的至少一个预定像素位置上沉积至少一个墨点的图像数据，并将其存储在由打印设备访问的清除图像存储器中。 不可见的净化图像图案被构造成具有等于或小于打印介质基底OD以上0.01OD的蓝色噪声空间频率特性和光密度水平。 多个清除图像数据组被构造和存储用于检索以适应各种条件。 使用清洗性能图像作为通过用户观察光学扫描或分析的测试图案来确定可接受的清除图像数据集。 本发明还包括构造成实现所公开的维持喷墨打印头的方法的许多印刷装置。

公开(公告)号：US08226199B2

公开(公告)日：2012-07-24

申请号：US12243325

申请日：2008-10-01

申请人： Gilbert A. Hawkins ,  Michael J. Piatt ,  John C. Brazas ,  Stephen F. Pond

发明人： Gilbert A. Hawkins ,  Michael J. Piatt ,  John C. Brazas ,  Stephen F. Pond

IPC分类号： B41J29/393

CPC分类号： B41J2/03 ,  B41J2002/022 ,  B41J2002/033 ,  B41J2202/13 ,  B41J2202/16

摘要： A jet break-off length measurement apparatus for a continuous liquid drop emission system is provided. The jet break-off length measurement apparatus comprises a liquid drop emitter containing a positively pressurized liquid in flow communication with at least one nozzle for emitting a continuous stream of liquid. Heater resistor apparatus is adapted to transfer pulses of thermal energy to the liquid in flow communication with the at least one nozzle sufficient to cause the break-off of the at least one continuous stream of liquid into a stream of drops of predetermined volumes. A sensing apparatus adapted to detect the stream of drops of predetermined volumes is provided. A control apparatus is adapted to determine a characteristic of the stream of drops of predetermined volumes that is related to the break-off length. Further apparatus is adapted to inductively charge at least one drop and to cause electric field deflection of charged drops. Jet stimulation apparatus comprising a plurality of transducers corresponding to the plurality of nozzles and adapted to transfer pulses of energy to the liquid sufficient to cause the break-off of the plurality of continuous streams of liquid into a plurality of streams of drops of predetermined volumes is also disclosed. Methods of measuring the jet break-off length using phase sensitive amplification circuitry are disclosed.

摘要翻译： 提供一种用于连续液滴发射系统的射流断裂长度测量装置。 射流断裂长度测量装置包括液滴发射器，其包含与至少一个喷嘴流动连通的正压液体，用于发射连续的液体流。 加热器电阻器装置适于将热能的脉冲传送到与至少一个喷嘴流动连通的液体，足以使至少一个连续的液体流分解成预定体积的液滴流。 提供了适于检测预定体积的液滴流的感测装置。 控制装置适于确定与断裂长度相关的预定体积的液滴流的特性。 进一步的装置适于对至少一滴进行电感充电并引起带电液滴的电场偏转。 喷射刺激装置包括对应于多个喷嘴的多个换能器并且适于将足够的能量脉冲转移到液体，以使多个连续的液体流分解成多个预定体积的液滴流， 也披露。 公开了使用相位敏感放大电路测量射流断裂长度的方法。

公开(公告)号：US08087740B2

公开(公告)日：2012-01-03

申请号：US12690954

申请日：2010-01-21

申请人： Michael J. Piatt ,  Stephen F. Pond ,  James A. Katerberg ,  Randy D. Vandagriff

发明人： Michael J. Piatt ,  Stephen F. Pond ,  James A. Katerberg ,  Randy D. Vandagriff

IPC分类号： B41J29/38 ,  B41J2/07

CPC分类号： B41J2/03 ,  B41J2002/022 ,  B41J2002/033 ,  B41J2202/12 ,  B41J2202/16

摘要： A method of operating a continuous liquid drop emission apparatus includes providing a liquid drop emitter that emits a plurality of continuous streams of liquid through a plurality of nozzles. A jet stimulation apparatus transfers energy to the liquid sufficient to cause the break-off of the plurality of continuous streams of liquid at a plurality of predetermined break-off times into a plurality of streams of drops of predetermined volumes. Sensing apparatus measures a characteristic value for each of the plurality of streams of drops of predetermined volumes. Control apparatus provides a plurality of break-off time setting signals to the jet stimulation apparatus to cause the plurality of predetermined break-off times to be determined by the characteristic value of each of the plurality of streams of drops of predetermined volumes.

摘要翻译： 操作连续液滴发射装置的方法包括提供液滴发射器，其通过多个喷嘴发射多个连续的液体流。 射流刺激装置将能量传递到液体，足以使多个连续的液体流在多个预定的断开时间被分解成多个预定体积的液滴流。 感测装置测量预定体积的多个液滴流中的每一个的特征值。 控制装置向喷射刺激装置提供多个断开时间设定信号，以通过多个预定量的液滴流的特征值来确定多个预定的断开时间。

公开(公告)号：US07713771B2

公开(公告)日：2010-05-11

申请号：US11469511

申请日：2006-09-01

申请人： Gert Friis Eriksen ,  Karsten Dyrbye ,  Heins K. Pedersen ,  Robert M. Mehalso ,  Stephen F. Pond

发明人： Gert Friis Eriksen ,  Karsten Dyrbye ,  Heins K. Pedersen ,  Robert M. Mehalso ,  Stephen F. Pond

IPC分类号： H01L21/00

CPC分类号： H01L29/84 ,  G01L9/0042

摘要： A differential pressure sensor includes a micro-electromechanical sensor die fabricated as a plurality of sensor die sites on a semiconductor wafer, and then singularized, the sensor die having a top face surface including die electrical output pads exposed to a first test fluid source and a bottom side surface exposed to a second test fluid source. The differential pressure further has a sensor die support member having a die support member fluid access port with a support member port perimeter; wherein one of the top face surface or the bottom side surface is sealed fully around the support member port perimeter by a wafer scale seal formed on the plurality of sensor die sites before die singulation. Wafer scale seals may be formed by a photofabrication process, screen printing, stamp printing, or pressure transfer printing. Some embodiments may include a photofabricated seal formed by a photosensitive polydimethylsiloxane material, by a filled photofabricated mold, and by photopatterned glass frit.

摘要翻译： 差压传感器包括在半导体晶片上制造为多个传感器模具位置的微机电传感器模具，然后被单数化，传感器模具具有顶表面，其包括暴露于第一测试流体源的模具电输出焊盘和 底侧表面暴露于第二测试流体源。 差压进一步具有传感器模具支撑构件，其具有具有支撑构件端口周边的模具支撑构件流体通路口; 其中，顶片表面或底侧表面之一通过在模切前形成在多个传感器模具部位上的晶片刻度密封件完全密封在支撑部件端口周边周围。 可以通过光加工工艺，丝网印刷，印章印刷或压印转印来形成晶片刻度密封。 一些实施例可以包括由光敏聚二甲基硅氧烷材料，填充的光制模和通过光图案化的玻璃料形成的光制密封。

公开(公告)号：US20080088680A1

公开(公告)日：2008-04-17

申请号：US11548709

申请日：2006-10-12

申请人： Jinquan Xu ,  Randolph C. Brost ,  Qing Yang ,  Fernando Lopes ,  Stephen F. Pond

发明人： Jinquan Xu ,  Randolph C. Brost ,  Qing Yang ,  Fernando Lopes ,  Stephen F. Pond

IPC分类号： B41J2/02

CPC分类号： B41J2/03 ,  B41J2002/022 ,  B41J2002/033 ,  B41J2202/13 ,  B41J2202/16

摘要： A continuous drop emitter comprising a liquid supply chamber containing a liquid held at a positive pressure; first and second nozzles in fluid communication with the liquid supply chamber nozzles emitting first and second continuous streams of a liquid; first and second stream break-up transducers adapted to independently synchronize the break up of the first and second continuous streams of the liquid into first and second streams of drops of predetermined volumes, respectively; and an acoustic damping material located adjacent to or within the liquid supply chamber for damping sound waves generated within the liquid chamber by the first and second stream break-up transducer. The continuous drop emitter may also configured with a Helmholtz resonant chamber tuned to a critical stimulation frequency having an acoustic damping material therein for absorbing acoustic stimulation energy. The Helmholtz resonant chamber may serve as a portion of the common liquid supply for the first and second jets in which case the acoustic damping material may be porous to allow the liquid to pass through. The acoustic damping materials may acoustically lossy materials that transmute energy into heat via molecular motions. The acoustic damping materials may be porous materials that absorb acoustic energy by forcing the liquid through small passages causing viscous flow energy losses. In addition the acoustic damping materials may include components that cause the disruption of acoustic waves by reflection from materials that are impedance mismatched to the liquid, either very dense materials or gas filled voids.

摘要翻译： 一种连续液滴发射器，包括一个含有保持在正压力下的液体的液体供应室; 第一和第二喷嘴与液体供应室喷嘴流体连通，发射第一和第二连续的液体流; 第一和第二流分解换能器，其适于独立地将所述液体的所述第一和第二连续流的分解独立地同步到预定体积的第一和第二液滴流中; 以及声音阻尼材料，其位于液体供应室附近或内部，用于阻止由第一和第二流断裂传感器在液体室内产生的声波。 连续液滴发射器还可以配置有调谐到临界刺激频率的亥姆霍兹谐振腔，其中具有用于吸收声学刺激能量的声阻尼材料。 亥姆霍兹共振腔可以用作第一和第二射流的公共液体供应的一部分，在这种情况下，声阻尼材料可以是多孔的以允许液体通过。 声阻尼材料可以通过分子运动将能量转变成热量的声学损耗材料。 声阻尼材料可以是通过迫使液体通过小通道而引起粘性流动能量损失来吸收声能的多孔材料。 此外，声阻尼材料可以包括通过来自与液体阻抗不匹配的材料（非常致密的材料或气体填充的空隙）的反射导致声波破坏的组件。

公开(公告)号：US07303265B1

公开(公告)日：2007-12-04

申请号：US11539187

申请日：2006-10-06

申请人： Christopher N. Delametter ,  David L. Jeanmaire ,  James M. Chwalek ,  Stephen F. Pond

发明人： Christopher N. Delametter ,  David L. Jeanmaire ,  James M. Chwalek ,  Stephen F. Pond

IPC分类号： B41J2/02

CPC分类号： B41J2/03 ,  B41J2/09 ,  B41J2002/022 ,  B41J2002/031 ,  B41J2002/032 ,  B41J2002/033 ,  B41J2202/16

摘要： A drop deflector apparatus for a continuous drop emission system that deposits a liquid pattern on a receiver according to liquid pattern data comprising a plurality of drop nozzles formed along a nozzle array axis and emitting a plurality of continuous streams of a liquid that breaks up into a plurality of streams of drops having nominal flight paths that are substantially parallel and substantially within a nominal flight plane is disclosed. An airflow plenum having an evacuation end connected to a negative pressure source and an impingement end having an opening located adjacent the nominal flight plane into which ambient air is drawn for the purpose of deflecting drops in an air deflection direction perpendicular to the nominal flight plane is provided. The opening is bounded by upstream, downstream, first and second walls wherein the upstream and downstream wall ends are spaced away from the nominal flight plane in the air deflection direction by a larger amount than are the first and second side wall edges. An airflow plenum having through slots for the passage of drops is also disclosed. Such a plenum design increases the amount of drop deflection achieved for a given maximum deflection air velocity and provides a reduction in the affect of perturbing air currents that may be present around the nominal flight paths. Drop synchronization apparatus is disclosed to break up continuous streams into drops of large and small volumes according to liquid pattern data, the large and small drops being differently deflected by the air flow in the airflow plenum. A plurality of path selection elements is disclosed for directing drops along different paths according to liquid pattern data, wherein drops following different paths are differently deflected by the air flow in the airflow plenum. A method of printing using the disclosed apparatus is also disclosed.

摘要翻译： 一种用于连续液滴发射系统的液滴偏转装置，其根据液体图案数据将液体图案沉积在接收器上，该液体图案数据包括沿着喷嘴阵列轴线形成的多个滴液喷嘴，并且喷射多个连续的液体流 公开了具有基本上平行且基本上在标称飞行平面内的标称飞行路径的多个液滴流。 具有连接到负压源的排气端和具有位于标称飞行平面附近的开口的冲击端的气流通风室，为了在与标称飞行平面垂直的空气偏转方向上偏转液滴的目的而将环境空气拉入其中， 提供。 开口由上游，下游，第一和第二壁限制，其中上游和下游壁端部在空气偏转方向上与标称飞行平面间隔开比第一和第二侧壁边缘更大的量。 还公开了一种具有用于液滴通过的通槽的气流通风室。 这种增压室设计增加了对于给定的最大偏转空气速度实现的液滴偏转量，并且降低了可能存在于标称飞行路径周围的扰动气流的影响。 泄漏同步装置被公开以根据液体模式数据将连续流分解成大小体积的液滴，大的和小的液滴被气流通风室中的空气流不同地偏转。 公开了多个路径选择元件，用于根据液体图案数据沿着不同的路径引导液滴，其中不同路径上的液滴被气流通风室中的气流不同地偏转。 还公开了使用所公开的装置的打印方法。

公开(公告)号：US5218381A

公开(公告)日：1993-06-08

申请号：US874865

申请日：1992-04-28

申请人： Ram S. Narang ,  Stephen F. Pond ,  Robert P. Altavela ,  David J. Collins ,  Robert A. Harold, Sr.

发明人： Ram S. Narang ,  Stephen F. Pond ,  Robert P. Altavela ,  David J. Collins ,  Robert A. Harold, Sr.

IPC分类号： B41J2/135 ,  B41J2/16 ,  C09D163/00

CPC分类号： B41J2/1606

摘要： A coating for a front face of printhead in a thermal ink jet printer enables the directionality of an ink jet to be maintained for the printing lifetime of the printer. The coating controls the wetting characteristics of the front face to prevent ink accumulation on the front face. The coating comprises an epoxy adhesive resin such as EPON 1001F doped with a silicone rubber compound such as RTV 732. The coating can be provided in the form of a 24% solution of EPON 1001F in a 30:70 mixture of xylene and methyl iso-butyl ketone by weight doped with 1% by weight of RTV 732. An adhesion promoter such as an aminosilane can be included in the coating to increase bond strength between the coating and printhead front face.

公开(公告)号：US4035810A

公开(公告)日：1977-07-12

申请号：US662675

申请日：1976-03-01

申请人： Daniel F. Blossey ,  Stephen F. Pond

发明人： Daniel F. Blossey ,  Stephen F. Pond

IPC分类号： G03G9/08 ,  B41J2/42 ,  G03G9/083 ,  G03G19/00 ,  H04N1/27 ,  G11B5/027

CPC分类号： G03G19/00

摘要： An improved magnetic interpositive imaging method is provided by creating an electrostatic latent image in a photoconductive member comprising photoconductive material dispersed in a binder; developing by touchdown development said electrostatic latent image with toner comprising from about 10% to about 60% by volume hard magnetic material; fixing said toner to said photoconductive binder; magnetizing said fixed toner; and, transferring the magnetic signal from said magnetized, fixed toner by thermoremanent transfer of magnetization to a magnetizable recording medium.

摘要翻译： 通过在包含分散在粘合剂中的光电导材料的感光体中产生静电潜像来提供改进的磁互相成像方法; 通过触地显影显影所述静电潜像与包含约10％至约60％（体积）硬磁性材料的调色剂; 将所述调色剂固定到所述光导粘合剂上; 磁化所述固定调色剂; 并且通过热磁化转移磁化的记录介质将来自所述经磁化的固定调色剂的磁信号转移。