Micromachined fluid ejector systems and methods having improved response characteristics
    11.
    发明授权
    Micromachined fluid ejector systems and methods having improved response characteristics 有权
    微加工流体喷射器系统和具有改进的响应特性的方法

    公开(公告)号:US06416169B1

    公开(公告)日:2002-07-09

    申请号:US09718420

    申请日:2000-11-24

    IPC分类号: B41J204

    CPC分类号: B41J2/14 B41J2002/043

    摘要: A piston structure is movably mounted within a fluid chamber. Movement of the piston structure towards a faceplate causes a portion of the fluid between the piston and the faceplate to be forced out of the nozzle hole in the faceplate, forming a drop or jet of the fluid. Viscous forces that are generated by the flow of fluid along a working surface of the piston structure toward and away from the nozzle hole generate a force that resists the movement of the piston structure. This resistance force tends to slow the piston motion, and prevents the piston from contacting the faceplate. In various embodiments, the fluid chamber is defined by a cylinder structure. The piston structure moves within the cylinder structure. The cylinder structure and the faceplate define the fluid chamber. The cylinder structure and the piston structure are designed to cooperate so that the movement of the piston structure within the cylinder structure ejects fluid according to various design criteria. In various embodiments, a free space is provided between the faceplate and the piston structure at its maximum displacement towards the faceplate.

    摘要翻译: 活塞结构可移动地安装在流体室内。 活塞结构朝向面板的运动导致活塞和面板之间的流体的一部分被迫离开面板中的喷嘴孔,形成液体的液滴或射流。 由流体沿着活塞结构的工作表面朝向和远离喷嘴孔流动产生的粘性力产生抵抗活塞结构的运动的力。 该阻力往往会减慢活塞运动,并防止活塞接触面板。 在各种实施例中,流体室由气缸结构限定。 活塞结构在气缸结构内移动。 气缸结构和面板限定流体室。 气缸结构和活塞结构被设计成配合,使得活塞结构在气缸结构内的运动根据各种设计标准喷射流体。 在各种实施例中,在朝向面板的最大位移处,在面板和活塞结构之间提供自由空间。

    Magnetic drive systems and methods for a micromachined fluid ejector
    12.
    发明授权
    Magnetic drive systems and methods for a micromachined fluid ejector 有权
    用于微加工流体喷射器的磁驱动系统和方法

    公开(公告)号:US06350015B1

    公开(公告)日:2002-02-26

    申请号:US09718495

    申请日:2000-11-24

    IPC分类号: B41J204

    CPC分类号: B41J2/14 B41J2002/041

    摘要: The systems and methods of the present invention operate by magnetically driving a fluid ejector. In various exemplary embodiments, a primary coil and a secondary coil are situated in the ejector. The ejector has a movable piston usable to eject fluid through a nozzle hole. The piston may be resiliently mounted and biased to an at-rest position. A drive signal is applied to cause current to flow in the primary coil. The current flow generates a magnetic field that induces a current in the secondary coil. Either the primary coil or the secondary coil or associated with the piston and the other is associated with a fixed structure of the ejector. As a result, a magnetic force is generated that pushes the piston either toward a faceplate so that a drop of fluid is ejected through the nozzle hole in the faceplate or away from the faceplate so that fluid fills in a fluid chamber between the piston and the faceplate. When the drive signal is turned off, the piston resiliently returns to its at-rest position, thereby either refilling the ejected fluid or ejecting a drop of fluid through the nozzle hole in the faceplate. In various other embodiments, the faceplate is made of a magnetic material, such as a ferrous material, or is coated with or connected to a magnetic material. A second primary coil or a permanent magnet may be included in various other embodiments. In various embodiments, switching the direction of the current changes the magnetic force between attraction and repulsion.

    摘要翻译: 本发明的系统和方法通过磁驱动流体喷射器来操作。 在各种示例性实施例中,初级线圈和次级线圈位于喷射器中。 喷射器具有用于将流体喷射通过喷嘴孔的活动活塞。 活塞可以弹性安装并偏置到静止位置。 施加驱动信号以使电流在初级线圈中流动。 电流产生在次级线圈中产生电流的磁场。 初级线圈或次级线圈或与活塞相关联的线圈或者与线圈相关联的另一个线圈与喷射器的固定结构相关联。 结果,产生磁力将活塞推向面板,使得一滴液体通过面板中的喷嘴孔或离开面板喷射,使得流体填充在活塞和活塞之间的流体室中 面板。 当驱动信号关闭时,活塞弹性地返回到其静止位置,从而重新填充喷射的流体或者通过面板中的喷嘴孔喷射一滴液体。 在各种其他实施例中,面板由诸如铁类材料的磁性材料制成,或者被涂覆或连接到磁性材料。 在各种其他实施例中可以包括第二初级线圈或永磁体。 在各种实施例中,切换电流的方向改变吸引力和排斥之间的磁力。

    Single pass digital xerographic process color reproduction
    13.
    发明授权
    Single pass digital xerographic process color reproduction 失效
    单程数字静电复印过程色彩再现

    公开(公告)号:US5194351A

    公开(公告)日:1993-03-16

    申请号:US632298

    申请日:1990-12-21

    申请人: George J. Roller

    发明人: George J. Roller

    IPC分类号: G03G15/01 G03G13/01 G06K15/12

    摘要: Xerographic method and apparatus capable of achieving a very large gamut of colors using the tri-level, highlight color process. Tri-level images are formed within pixel distance of a prior developed image. These images are developed with one of two different color toners followed by recharging of the charge retentive surface and a second exposure to form more tri-level images which are selectively developed using two different color toners which are also different in color from the other toners.

    摘要翻译: 能够使用三级,高亮度颜色处理实现非常大色域的静电复印方法和装置。 三维图像在先前显影图像的像素距离内形成。 这些图像用两种不同颜色的调色剂中的一种显影,然后对电荷保持性表面进行再充电,并进行第二次曝光以形成更多的三级图像,其使用两种不同颜色的颜色选择性地显影,颜色也不同于其它调色剂。

    Hybrid sequenced dadf duplexing system
    14.
    发明授权
    Hybrid sequenced dadf duplexing system 失效
    混合序列dadf双工系统

    公开(公告)号:US4949949A

    公开(公告)日:1990-08-21

    申请号:US274516

    申请日:1988-11-22

    摘要: Disclosed is a hybrid copying system including a document feeder for a copier with a document bypass loop for copying documents in desired non-linear page sequences for improved copying efficiency, particularly for duplex copying. As shown, documents from a stacked set of document sheets may be fed to the copying station of the copier and then selectively returned directly back to the opposite side of the copying station for copying interleaved between the feeding of other documents fed from the stack, by a document return loop bypass path bypassing the stack and having a path length greater than the dimension of a document sheet. A duplex document which has been copied on one side may be moving in this return loop bypass path while another fed from the stack is being copied, and also be inverted by an integral inverter therein. A post-collation duplex copying system is provided with this document feeder for making duplex copies from duplex document sheets by making two separate buffer sets of plural copies on one side of copy sheets at a time of one side of two different document sheets fed by this document feeder and temporarily retaining and maintain these two separate buffer sets in a duplexing buffer tray in the copier and then copying onto the other sides thereof the other sides of documents fed through the document bypass loop and outputting these completed copies to be sorted by being separately placed in the bins of a multiple bin sorter at the output of the copier, and repeating this until all the documents have been copied. Various examples are disclosed for compatible hybrid simplex and/or duplex and pre or post collation copying, including alternative trayless duplexing and hybrid or non-sequential postcollation sorter operation.

    摘要翻译: 公开了一种混合式复印系统,其包括用于具有用于以期望的非线性页面序列复印文档的文档旁路回路的复印机的文件馈送器,以提高复印效率,特别是对于双面复印。 如图所示,来自堆叠的一组文件的文件可以被馈送到复印机的复印站,然后被选择性地直接返回到复印站的相对侧,用于在从堆叠馈送的其它文档的馈送之间进行交错复制, 文档返回环绕路径绕过堆栈并且具有大于文档片的尺寸的路径长度。 已经复制在一侧的双面文件可以在该回路旁路中移动,而从堆叠中馈送的另一个双面文档正在被复制,并且也由其中的整体反相器反转。 这种文件馈送装置提供了一个后验双面复印系统,用于通过在由这个馈送的两个不同的文件页的一侧上在复印纸的一面上制作两个单独的多个副本的缓冲组 文件馈送器,并在复印机的双面缓冲托盘中临时保留和维护这两个单独的缓冲器组,然后将通过文档旁路回路馈送的文档的另一侧复制到另一侧,并输出这些完成的副本以通过分开排序 放置在复印机输出端的多纸盒分页器的纸盒中,并重复此操作,直到所有文档都已复印。 公开了用于兼容的混合单工和/或双工和预处理或后期对比复制的各种示例,包括替代的无托盘双面打印和混合或非顺序后色谱分选器操作。

    Inverter with proportional force paper drive
    15.
    发明授权
    Inverter with proportional force paper drive 失效
    变频器采用比例强力纸驱动

    公开(公告)号:US4359217A

    公开(公告)日:1982-11-16

    申请号:US182919

    申请日:1980-09-02

    摘要: A copier capable of producing simplex and duplex copies includes a tri-roll inverter that employs a corrugating roll on roll return force applicator located downstream from the tri-roll input/output members. A sheet coming into the inverter is driven by a pair of the tri-rolls into a nip formed between corrugating rings mounted on the dual rolls of the return force applicator. One of the rolls has a minimal friction force and rotates continuously in the opposite direction to the incoming sheet. When the last portion of the sheet is driven into the corrugation nip, the friction force of the nip will cause the sheet to buckle into an output nip of the tri-roll members for outward movement.

    摘要翻译: 能够生产单面和双面复印件的复印机包括三辊逆变器,其采用位于三辊输入/输出构件下游的辊回力施加器上的波纹辊。 进入逆变器的纸张由一对三辊驱动到形成在安装在返回力施加器的双辊上的瓦楞环之间的辊隙中。 其中一个辊具有最小的摩擦力并且沿着与进入的片材相反的方向连续地旋转。 当纸张的最后部分被驱动到波纹辊隙中时,辊隙的摩擦力将导致纸张压入三辊构件的输出压区以向外运动。

    Apparatus for inverting substrates
    16.
    发明授权
    Apparatus for inverting substrates 失效
    用于反转衬底的设备

    公开(公告)号:US4346880A

    公开(公告)日:1982-08-31

    申请号:US193242

    申请日:1980-10-02

    摘要: A copier capable of producing simplex and duplex copies includes a tri-roll inverter that employs a spring loaded ball on roll return force applicator located downstream from the tri-roll input/output members. The input nip of the inverter includes the combination of a smooth roll and a foam roll. This combination corrugates lightweight papers for penetrating the ball on roll nip. A sheet driven by the input nip into the inverter penetrates the ball on roll return force applicator nip. When the last portion of the sheet leaves the input nip, the friction return force of the applicator nip will cause the sheet to buckle into an output nip formed by the foam rolls of the tri-roll members for outward movement.

    摘要翻译: 能够生产单面和双面复印件的复印机包括三辊逆变器,其使用位于三辊输入/输出构件下游的辊返回力施加器上的弹簧加载的球。 逆变器的输入压区包括平滑辊和泡沫辊的组合。 这种组合使轻质纸张在辊隙上穿透球体。 由输入压区驱动到变频器中的纸张在辊返回力施加辊隙上穿透球。 当纸张的最后部分离开输入压区时,涂布辊隙的摩擦力将导致纸张压入由三辊构件的泡沫辊形成的输出压区中,用于向外移动。

    Surface micromachined structure fabrication methods for a fluid ejection device
    17.
    发明授权
    Surface micromachined structure fabrication methods for a fluid ejection device 有权
    用于流体喷射装置的表面微加工结构制造方法

    公开(公告)号:US06472332B1

    公开(公告)日:2002-10-29

    申请号:US09723243

    申请日:2000-11-28

    IPC分类号: H01L21302

    摘要: Structures for use in conjunction with surface micromachined structures are formed using a two-step etching process. In various exemplary embodiments, the two-step etching process comprises a modified Bosch etch. According to various exemplary embodiments of the two-step etch, first mask and second masks are used to prepare a layer for etching one or more desired structures. The first mask is used to define at least one large feature. The second mask is used to define at least one small feature (small as compared to the at least one large feature). The second mask is formed over the first mask which is formed over the layer. In the first etching step, the at least one small feature is etched into the layer. Then, the second mask is removed using the chemical rinsing agent. In the second etching step, the at least one large feature is etched into the layer such that the at least one small feature propagates further into the layer ahead of the at least one large feature. The first mask is then removed. Other surface micromachined methods and structures are provided as well.

    摘要翻译: 与表面微加工结构结合使用的结构使用两步蚀刻工艺形成。 在各种示例性实施例中,两步蚀刻工艺包括经修改的博世蚀刻。 根据两步蚀刻的各种示例性实施例,使用第一掩模和第二掩模来制备蚀刻一个或多个所需结构的层。 第一个掩模用于定义至少一个大的特征。 第二个掩模用于定义至少一个小特征(与至少一个大特征相比较小)。 第二掩模形成在形成在该层上的第一掩模上。 在第一蚀刻步骤中,至少一个小特征被蚀刻到该层中。 然后,使用化学漂洗剂除去第二面罩。 在第二蚀刻步骤中,至少一个大特征被蚀刻到层中,使得至少一个小特征进一步传播到至少一个大特征之前的层中。 然后删除第一个面具。 还提供了其他表面微加工方法和结构。

    Electronic drive systems and methods
    18.
    发明授权
    Electronic drive systems and methods 有权
    电子驱动系统和方法

    公开(公告)号:US06419335B1

    公开(公告)日:2002-07-16

    申请号:US09718480

    申请日:2000-11-24

    IPC分类号: B41J2938

    CPC分类号: B41J2/14 B41J2002/043

    摘要: An electronic drive system applies a drive signal to an electrostatically actuated device such that a resulting electric field has a constant force. In various exemplary embodiments, the electronic drive system applies a drive signal to an electrostatically actuated fluid ejector that has a piston and a faceplate including a nozzle hole. A dielectric fluid to be ejected is supplied between the piston and the faceplate. The drive signal is applied to one of the piston and the faceplate. The drive signal generates an electric field across the fluid between the piston and the faceplate. The electric field causes the piston to be electrostatically attracted towards the faceplate so that a jet or drop of fluid is ejected through the nozzle hole of the faceplate. According to exemplary embodiments, the drive signal is from a constant current source or is reduced over the course of its lifetime. Further, according to various exemplary embodiments, the drive signal is of a suitable high frequency to reduce the potential of electrochemical reactions or electrical breakdown, or both. The drive signal may also be a bi-polar drive signal to reduce the possibility of electrochemical reactions.

    摘要翻译: 电子驱动系统将驱动信号施加到静电致动装置,使得所产生的电场具有恒定的力。 在各种示例性实施例中,电子驱动系统将驱动信号施加到具有活塞和包括喷嘴孔的面板的静电驱动流体喷射器。 待喷射的介质流体供应在活塞和面板之间。 驱动信号被施加到活塞和面板中的一个。 驱动信号通过活塞和面板之间的流体产生电场。 电场导致活塞被静电吸引到面板上,使得喷射或液滴流过面板的喷嘴孔。 根据示例性实施例,驱动信号来自恒定电流源,或者在其寿命期间减小。 此外,根据各种示例性实施例,驱动信号具有合适的高频率,以减少电化学反应或电击穿的可能性,或者两者。 驱动信号也可以是双极驱动信号,以减少电化学反应的可能性。

    Bi-directional fluid ejection systems and methods
    19.
    发明授权
    Bi-directional fluid ejection systems and methods 有权
    双向流体喷射系统和方法

    公开(公告)号:US06409311B1

    公开(公告)日:2002-06-25

    申请号:US09718476

    申请日:2000-11-24

    IPC分类号: B41J204

    CPC分类号: B41J2/14314

    摘要: A bi-directional fluid ejector according to the systems and methods of this invention operates on the principle of electrostatic attraction. In various exemplary embodiments, the fluid ejector includes a sealed dual diaphragm arrangement, an electrode arrangement that is parallel and opposite to the sealed diaphragms, and a structure which contains the fluid to be ejected. A diaphragm chamber containing a relatively incompressible fluid is situated behind, and is sealed by, the diaphragms. At least one nozzle hole is formed in a faceplate of the ejector over one of the diaphragms. A drive signal is applied to at least one electrode of the electrode arrangement to generate an electrostatic field between the electrode and a first one of the diaphragms. The first diaphragm is attracted towards the electrode by an electrostatic force into a deformed shape due to the electrostatic field. Upon deforming, pressure is transmitted to a second one of the sealed diaphragms. The transmitted pressure and the relatively incompressible nature of the fluid contained within the sealed diaphragm chamber causes the second diaphragm to deflect in the opposite direction to force fluid through at least one of the at least one nozzle hole. After a drop is ejected, the movement is reversed, either through normal resilient restoration actions of the deformed diaphragm and/or through an applied force.

    摘要翻译: 根据本发明的系统和方法的双向流体喷射器基于静电吸引的原理进行操作。 在各种示例性实施例中,流体喷射器包括密封的双隔膜装置,与密封隔膜平行和相对的电极装置,以及包含要喷射的流体的结构。 包含相对不可压缩流体的隔膜室位于隔膜的后面并被隔膜密封。 在喷射器的面板中的一个隔膜上形成至少一个喷嘴孔。 将驱动信号施加到电极装置的至少一个电极,以在电极和第一隔膜之间产生静电场。 第一隔膜由于静电场而被静电力吸引到变形的形状中。 在变形时,压力被传递到密封隔膜中的第二个。 包含在密封隔膜室内的流体的透过压力和相对不可压缩的性质导致第二隔膜在相反方向上偏转以迫使流体通过至少一个喷嘴孔中的至少一个。 在液滴被弹出之后,运动通过变形膜片的正常弹性恢复动作和/或通过施加的力来反转。

    Fluid drop ejector
    20.
    发明授权
    Fluid drop ejector 有权
    液滴喷射器

    公开(公告)号:US06318841B1

    公开(公告)日:2001-11-20

    申请号:US09418406

    申请日:1999-10-14

    IPC分类号: B41J2135

    摘要: The silicon fluid ejector of the present invention includes an electrostatically actuated micromachined positive displacement mechanism consisting of a piston, piston containment structure, piston retraction mechanism and an ejection orifice. These features provide for very low cost of production, high reliability and “on demand” drop size modulation. The fluid ejector mechanism can be easily produced via monolithic batch fabrication based on the common production technique of surface micromachining.

    摘要翻译: 本发明的硅流体喷射器包括由活塞,活塞容纳结构,活塞缩回机构和喷射孔组成的静电驱动的微机械正位移机构。 这些功能提供非常低的生产成本,高可靠性和“按需”下降尺寸调制。 流体喷射器机构可以通过基于表面微加工的常见生产技术的单片批量制造容易地制造。