公开(公告)号：US5072235A

公开(公告)日：1991-12-10

申请号：US543497

申请日：1990-06-26

申请人： John H. Slowik ,  Stephen F. Pond

发明人： John H. Slowik ,  Stephen F. Pond

IPC分类号： B41J2/125 ,  B41J2/01 ,  B41J2/19 ,  G01N27/06

CPC分类号： B41J2/19

摘要： A detection circuit for detecting the existence of non-collapsing bubbles in the ink cells of a thermal inkjet printhead is connected to a heater element of an ink containing cell. The detection circuit has a sensing element of low resistance when compared to the resistance of the heater element so that printing and detecting operations can proceed simultaneously. Current in the heater element is proportional to the potential drop across the sensing element. An amplifier is used to measure the potential drop and is connected to a blocking capacitor. Non-collapsing bubbles are detected if the voltage drop across the sensing element varies from a reference level.

摘要翻译： 用于检测热喷墨打印头的墨盒中非塌陷气泡的存在的检测电路连接到墨水容纳单元的加热元件。 检测电路具有与加热器元件的电阻相比低电阻的感测元件，使得打印和检测操作可以同时进行。 加热器元件中的电流与感测元件上的电位降成正比。 放大器用于测量电位降，并连接到阻塞电容。 如果感测元件两端的电压降从基准电平变化，则检测到非塌陷气泡。

公开(公告)号：US5057854A

公开(公告)日：1991-10-15

申请号：US543550

申请日：1990-06-26

申请人： Stephen F. Pond ,  Donald J. Drake ,  Robert P. Altavela ,  Gary A. Kneezel ,  Ivan Rezanka

发明人： Stephen F. Pond ,  Donald J. Drake ,  Robert P. Altavela ,  Gary A. Kneezel ,  Ivan Rezanka

IPC分类号： B41J2/175 ,  B41J2/045 ,  B41J2/05 ,  B41J2/055 ,  B41J2/155

CPC分类号： B41J2/155 ,  B41J2202/20

摘要： Modular partial bars include a substrate bar having a length and a plurality of printhead subunits attached to only one side of the substrate bar, each printhead subunit being spaced from an adjacent printhead subunit. These modular partial bars are used as building blocks to form full width staggered array printheads. When the printhead subunits are arranged on each substrate bar so that two substrate bars are capable of forming a full width staggered array printhead, each modular partial bar is referred to as a modular half bar. One modular half bar can be stacked on another modular half bar any number of ways. For example, two half bars can be stacked with their printhead subunit containing sides facing the same direction, away from one another or towards one another. When two half bars are stacked with their printhead subunit containing sides facing in the same direction, an ink manifold for supplying ink to the printhead subunits of the lower half bar can be provided in the substrate of the upper half bar. When half bars are arranged with their printhead subunit containing sides facing each other, a common ink supply manifold can be used to supply ink to all of the printhead subunits in the full width staggered array, thus eliminating the need for two separate ink supply manifolds. By modifying the construction of the channel plates typically used to form the printhead subunits, the need for a separate ink supply manifold can be entirely eliminated.

摘要翻译： 模块化部分棒包括具有长度的衬底条和仅附接到衬底条的一侧的多个打印头子单元，每个打印头子单元与相邻的打印头子单元间隔开。 这些模块化部分棒用作构建块以形成全宽度交错阵列打印头。 当打印头子单元布置在每个基板上时，使得两个基板条能够形成全宽度交错阵列打印头，每个模块化部分条被称为模块化半条。 一个模块化的半棒可以堆叠在另一个模块化的半棒上任意数量的方式。 例如，两个半棒可以堆叠，其打印头子单元包含侧面朝向相同的方向，彼此远离或彼此朝向彼此。 当两个半棒堆叠而其打印头子单元包含侧面朝向相同方向时，可以在上半杆的基板中提供用于向下半杆的打印头子单元供墨的墨水歧管。 当半棒布置成其打印头子单元包含侧面彼此相对时，可以使用公共的墨水供应歧管来将墨水供应到全宽度交错阵列中的所有打印头子单元，从而消除了对两个单独的墨水供应歧管的需要。 通过改变通常用于形成打印头子单元的通道板的结构，可以完全消除对单独的供墨歧管的需要。

公开(公告)号：US5043740A

公开(公告)日：1991-08-27

申请号：US450421

申请日：1989-12-14

申请人： Gary A. Kneezel ,  Stephen F. Pond

发明人： Gary A. Kneezel ,  Stephen F. Pond

IPC分类号： B41J2/045 ,  B41J2/055 ,  B41J2/07 ,  B41J2/13

CPC分类号： B41J2/0458 ,  B41J2/04505 ,  B41J2/04556 ,  B41J2/04573 ,  B41J2/07

摘要： A method and apparatus actuates a line of printing elements to form characters on a recording medium contained on a curved surface of a platen. The printing elements are sequentially actuated, starting with nozzles located furthest from the platen and proceeding towards printing elements located closest to the platen until the actuation of all element has been performed. The line of printing elements can form a printhead which includes a plurality of nozzles arranged in at least one line having opposing ends, this line being substantially perpendicular to a longitudinal axis of the curved platen. Preferably, the line of nozzles is arranged with its center located closest to the platen and the nozzles are actuated starting at the ends of the line of nozzles.

摘要翻译： 一种方法和装置致动一行印刷元件以在包含在压板的曲面上的记录介质上形成字符。 打印元件被顺序地致动，从位于离稿台最远的喷嘴开始，朝向最靠近压板的打印元件移动，直到已经执行所有元件的致动。 打印元件线可以形成打印头，该打印头包括布置在具有相对端的至少一条线中的多个喷嘴，该线基本上垂直于弯曲压板的纵向轴线。 优选地，喷嘴线布置成其中心最靠近压板，并且喷嘴从喷嘴线的端部开始被致动。

公开(公告)号：US4274100A

公开(公告)日：1981-06-16

申请号：US84010

申请日：1979-10-11

申请人： Stephen F. Pond

发明人： Stephen F. Pond

IPC分类号： B41J2/075 ,  B41J2/09 ,  G01D15/18

CPC分类号： B41J2/09 ,  B41J2/075

摘要： A novel, dynamically electrostatically scanning ink jet system is provided by applying a time varying potential to an electrode located adjacent the continuous stream portion of ink emitted by a jet at a location prior to break-up of the continuous stream portion into droplets.

摘要翻译： 通过对连续流部分分解成液滴之前的位置处的喷射发射的墨水的连续流部分附近的电极施加时变电位来提供新颖的动态静电扫描喷墨系统。

公开(公告)号：US4115786A

公开(公告)日：1978-09-19

申请号：US747284

申请日：1976-12-03

申请人： Thomas M. Frey ,  Stephen F. Pond

发明人： Thomas M. Frey ,  Stephen F. Pond

IPC分类号： G03G19/00 ,  G11B5/86 ,  G11B20/06 ,  H04N1/40 ,  G11B21/02

CPC分类号： G03G19/00 ,  G11B20/06 ,  G11B5/86 ,  H04N1/40025

摘要： Constant wavelength magnetic imaging is provided by generating a signal having a frequency proportional to the speed of a rotational recording member, multiplying that frequency up to a higher, desired recording frequency, and phase-locking the higher frequency signal to the unmultiplied lower frequency, thus synchronizing the recording frequency with the motor speed.

摘要翻译： 通过产生具有与旋转记录部件的速度成比例的频率的信号来提供恒定波长磁成像，将该频率乘以更高的期望记录频率，并将较高频率信号锁定到非乘法较低频率，因此 记录频率与电机速度同步。

公开(公告)号：US07651206B2

公开(公告)日：2010-01-26

申请号：US11612694

申请日：2006-12-19

申请人： Gilbert A. Hawkins ,  Douglas W. Couwenhoven ,  Bradley A. Phillips ,  Stephen F. Pond

发明人： Gilbert A. Hawkins ,  Douglas W. Couwenhoven ,  Bradley A. Phillips ,  Stephen F. Pond

IPC分类号： B41J2/02

CPC分类号： B41J2/2128 ,  B41J2/03 ,  B41J2/075 ,  B41J2/175 ,  B41J2/185 ,  B41J2002/022 ,  B41J2002/031 ,  B41J2002/033

摘要： A method of forming a liquid pattern according to liquid pattern data on a receiving medium using a liquid drop emitter that emits a continuous stream of liquid from a nozzle that is broken into drops of predetermined volumes by the application of drop forming energy pulse is disclosed comprising associating a pixel area of the receiving medium with a nozzle and a time interval during which a plurality of fluid drops ejected from the nozzle can impinge the pixel area of the receiving medium. The time interval is divided into a plurality of subintervals that are, in turn, grouped into a plurality of blocks. Each block is defined as a printing block or a non-printing block. A drop forming energy pulse is provided between each pair of consecutive blocks and between the subintervals of each printing block. No drop forming energy pulses are provided between the subintervals of the non-printing blocks. The so-formed energy pulse sequence is applied to the stream of liquid causing the formation of small print drops and large non-print drops. The liquid pattern is formed on the receiver of print drops comprised of liquid emitted during subintervals associated with printing blocks. The block configuration is designed to ensure that non-print drops have the proper volume. In an alternate set of embodiments, individual subintervals rather than blocks of subintervals are individually defined as print or non-print subintervals subject to a non-print drop rule that forces non-print drops to be formed of adequate volume for differentiation from print drops and a maximum drop rule that ensures that non-print drops are not too large to be reliably captured and guttered.

摘要翻译： 公开了一种根据液体图案数据在接收介质上使用液滴发射器形成液体图案的方法，所述液滴发射器通过施加液滴形成能量脉冲从喷嘴发射连续的液体流，所述喷嘴被分解成预定体积的液滴，包括 将接收介质的像素区域与喷嘴相关联，并且从喷嘴喷射的多个液滴喷射到接收介质的像素区域的时间间隔。 该时间间隔被分成多个子区间，它们又被分组成多个区块。 每个块被定义为打印块或非打印块。 在每对连续块之间和每个印刷块的子间隔之间提供液滴形成能量脉冲。 在非印刷块的子间隔之间不设置液滴形成能量脉冲。 如此形成的能量脉冲序列被施加到液体流，导致形成小的印刷滴和大的非印刷液滴。 液体图案形成在由与印刷块相关联的子间隔期间发射的液体的印刷液滴的接收器上。 块配置旨在确保非打印墨滴具有适当的体积。 在替代的一组实施例中，单独的子区间而不是子区段被单独地定义为经受非打印下拉规则的打印或非打印子区间，其强制非打印液滴由足够的体积形成以与印刷液滴区分开，并且 一个最大的丢弃规则，确保非打印滴不会太大，无法被可靠地捕获和排除。

公开(公告)号：US07508294B2

公开(公告)日：2009-03-24

申请号：US11849378

申请日：2007-09-04

申请人： Antonio Cabal ,  Stephen F. Pond

发明人： Antonio Cabal ,  Stephen F. Pond

IPC分类号： H01H59/00 ,  H01P1/10

CPC分类号： H01H61/02 ,  H01H37/00 ,  H01H2061/006

摘要： A doubly-anchored thermal actuator for a micro-electromechanical device such as a liquid drop emitter or a fluid control microvalve is disclosed. The thermal actuator is comprised of a base element formed with a depression having opposing anchor. A deformable element, attached to the base element at the opposing anchor edges, is constructed as a planar lamination including a first layer of a first material having a low coefficient of thermal expansion and a second layer of a second material having a high coefficient of thermal expansion. The deformable element has anchor portions adjacent the anchor edges and a central portion between the anchor portions wherein the flexural rigidity of the anchor portions is substantially less than the flexural rigidity of the central portion. The doubly-anchored thermal actuator further comprises apparatus adapted to apply a heat pulse to the deformable element that causes a sudden rise in the temperature of the deformable element. The deformable element bows outward in a direction toward the second layer, and then relaxes to a residual shape as the temperature decreases. The doubly-anchored thermal actuator is configured with a liquid chamber having a nozzle or a fluid flow port to form a liquid drop emitter or a fluid control microvalve, or to activate an electrical microswitch. Heat pulses are applied to the deformable element by resistive heating or by light energy pulses.

摘要翻译： 公开了一种用于诸如液滴发射器或流体控制微型阀的微机电装置的双重锚定的热致动器。 热致动器包括形成有具有相对的锚的凹陷的基座元件。 在相对的锚边缘处附接到基体元件的可变形元件被构造为平面层压，其包括具有低热膨胀系数的第一材料的第一层和具有高热系数的第二材料的第二层 扩张。 可变形元件具有邻近锚定边缘的锚定部分和锚固部分之间的中心部分，其中锚固部分的抗弯刚度基本上小于中心部分的弯曲刚度。 双重锚固的热致动器还包括适于将热脉冲施加到可变形元件上的装置，其引起可变形元件的温度的突然上升。 可变形元件在朝向第二层的方向上向外弯曲，然后随着温度降低而松弛到残留形状。 双重锚固的热致动器配置有具有喷嘴或流体流动端口的液体室，以形成液滴发射器或流体控制微型阀，或者激活电微型开关。 加热脉冲通过电阻加热或光能脉冲施加到可变形元件。

公开(公告)号：US20090027459A1

公开(公告)日：2009-01-29

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： B41J2/07

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：US07364276B2

公开(公告)日：2008-04-29

申请号：US11229263

申请日：2005-09-16

申请人： Michael J. Piatt ,  Stephen F. Pond

发明人： Michael J. Piatt ,  Stephen F. Pond

IPC分类号： B41J2/07

CPC分类号： B41J2/03 ,  B41J2002/022 ,  B41J2002/033 ,  B41J2202/12 ,  B41J2202/13 ,  B41J2202/16

摘要： A continuous liquid drop emission apparatus is provided. The liquid drop emission apparatus is comprised of a liquid chamber containing a positively pressurized liquid in flow communication with at least one nozzle for emitting a continuous stream of liquid and a jet stimulation apparatus adapted to transfer pulses of 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. The continuous liquid drop emission apparatus further comprises a semiconductor substrate including integrated circuitry formed therein for performing and controlling a plurality of actions on the drops of predetermined volumes. The plurality of actions may include drop charging, drop sensing, drop deflection and drop capturing. Drop action apparatus adapted to perform these functions and integrated circuitry to control the drop action apparatus are formed in the semiconductor substrate. Jet stimulation apparatus comprised of a plurality of transducers including resistive heaters, electromechanical vibrators or thermomechanical vibrators, together with integrated control circuitry, may also be integrated on the semiconductor substrate. Silicon is a preferred material for the semiconductor substrate and CMOS and NMOS designs and fabrication processes are preferred for the integrated circuitry.

摘要翻译： 提供连续液滴发射装置。 液滴发射装置包括液体室，该液体室含有与至少一个用于发射连续液体流的喷嘴流动连通的正压液体，以及喷射刺激装置，其适于将能量脉冲转移到与液体流动连通的液体 至少一个喷嘴，其足以使所述至少一个连续的液体流分解成预定体积的液滴流。 连续液滴发射装置还包括半导体衬底，其包括形成在其中的集成电路，用于执行和控制对预定体积的液滴的多个动作。 多个动作可以包括液滴充电，液滴感测，液滴偏转和液滴捕获。 在半导体衬底中形成适于执行这些功能的放置动作装置和集成电路来控制液滴动作装置。 包括电阻加热器，机电振动器或热机械振动器的多个换能器以及集成控制电路的射流刺激装置也可以集成在半导体衬底上。 硅是半导体衬底的优选材料，并且CMOS和NMOS设计和制造工艺对于集成电路是优选的。

公开(公告)号：US07249830B2

公开(公告)日：2007-07-31

申请号：US11229467

申请日：2005-09-16

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

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

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 control apparatus for a continuous liquid drop emission system is provided. The jet break-off length control 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. Resistive heater 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. The jet break-off length control apparatus further comprises a control apparatus adapted to calculate a characteristic of the stream of drops of predetermined volumes and adapted to provide a break-off length calibration signal to the resistive heater apparatus wherein the break-off length calibration signal is determined at least by the characteristic of the stream of drops of predetermined volumes. Further apparatus is adapted to inductively charge at least one drop and to cause electric field deflection of charged drops. The present inventions are additionally configured to control break-off lengths for a plurality of streams of drops of predetermined volumes by determining a break-off length calibration signal that contains information specific to the plurality of streams of drops of predetermined volumes. Jet stimulation apparatus comprised of a plurality of thermomechanical or electromechanical transducer devices that transfer mechanical energy to the fluid are claimed. Methods of controlling the jet break-off length are also disclosed.