Thermal ink-jet printhead with an optimized fluid flow channel in each
ejector
    2.
    发明授权
    Thermal ink-jet printhead with an optimized fluid flow channel in each ejector 失效
    每个喷射器中具有优化的流体流动通道的热喷墨打印头

    公开(公告)号:US5751317A

    公开(公告)日:1998-05-12

    申请号:US632293

    申请日:1996-04-15

    摘要: A thermal ink-jet ejector having a fluid flow channel extending between an ink inlet and a nozzle for the ejection of liquid ink therefrom, includes a rear channel diffuser disposed between the heating element and the inlet, and/or a front channel diffuser disposed between the heating element and the nozzle. Each diffuser includes an arrangement of tapers which decrease the flow impedance of liquid ink flowing toward the nozzle, and increase the flow impedance of liquid ink flowing toward the inlet. The arrangement increases the kinetic energy of droplets being ejected, and also increases the speed of re-fill of the channel with liquid ink following ejection.

    摘要翻译: 一种热喷墨喷射器,其具有在油墨入口和用于从其喷射液体油墨的喷嘴之间延伸的流体流动通道,包括设置在加热元件和入口之间的后通道扩散器和/或设置在 加热元件和喷嘴。 每个扩散器包括锥形布置,其减小朝向喷嘴流动的液体墨水的流动阻抗,并且增加朝向入口流动的液体墨水的流动阻抗。 该布置增加了喷射的液滴的动能,并且还提高喷射后液体墨水重新填充流道的速度。

    Thermal ink-jet printhead with a thermally isolated heating element in
each ejector
    3.
    发明授权
    Thermal ink-jet printhead with a thermally isolated heating element in each ejector 失效
    每个喷射器中具有热隔离加热元件的热​​喷墨打印头

    公开(公告)号:US5751315A

    公开(公告)日:1998-05-12

    申请号:US632983

    申请日:1996-04-16

    IPC分类号: B41J2/05 B41J2/14

    摘要: An ejector for a thermal ink-jet printhead includes a heating element defined on a main surface of a silicon heater chip. A cavity is disposed within the heater chip opposite the side of the heating element exposed to liquid ink. In one embodiment, the heating element is disposed on a narrow pillar which is surrounded by two elongated trenches. In another embodiment, the heating element is suspended over a cavity by narrow supports. In each case, the cavity reduces the thermal mass of the structure supporting the heating element and acts as an insulator to prevent excess heat from being dissipated into the body of the heater chip.

    摘要翻译: 用于热喷墨打印头的喷射器包括限定在硅加热器芯片的主表面上的加热元件。 空腔设置在与加热元件暴露于液体墨水的一侧相对的加热器芯片内。 在一个实施例中,加热元件设置在被两个细长沟槽包围的窄柱上。 在另一个实施例中,加热元件通过狭窄的支撑件悬挂在空腔上。 在每种情况下,空腔减小了支撑加热元件的结构的热质量,并且用作绝缘体以防止多余的热量散发到加热器芯片的主体中。

    Liquid ink printer having apparent 1XN addressability
    4.
    发明授权
    Liquid ink printer having apparent 1XN addressability 失效
    液体墨水打印机具有明显的1XN寻址能力

    公开(公告)号:US5731827A

    公开(公告)日:1998-03-24

    申请号:US539890

    申请日:1995-10-06

    摘要: A liquid ink printing apparatus printing images includes a printhead having a plurality of nozzles wherein a single power pulse causes two or more nozzles to eject ink simultaneously. The printhead includes an ink directing element having a plurality of ink conduits coupled to an array of spaced nozzles and a transducer element aligned with and mated to the ink directing element. The transducers are spaced a distance apart and each transducer is substantially aligned with at least two or more of the nozzles. The printhead is stepped in a direction transverse to the array of spaced nozzles a stepping distance approximately equal to or less than the distance between transducers. The ink directing element includes a silicon wafer having etched ink conduits or channels holding ink for ejection through the nozzles connected thereto. Each transducer is cooperatively associated with one channel having a fork member coupled to two or more nozzles or is cooperatively associated with two or more channels wherein each channel is connected to one or more nozzles.

    摘要翻译: 打印图像的液体油墨印刷设备包括具有多个喷嘴的打印头,其中单个功率脉冲使得两个或更多个喷嘴同时喷射墨水。 打印头包括具有连接到间隔开的喷嘴阵列的多个墨水管道和与墨水导向元件对准并配合的换能器元件的墨水引导元件。 换能器间隔开一段距离,每个换能器基本上与至少两个或更多个喷嘴对准。 打印头在与间隔开的喷嘴阵列横向的方向上是步进的,该距离大约等于或小于换能器之间的距离。 墨水引导元件包括具有蚀刻的墨水导管或通道的硅晶片,该墨水管道或通道保持用于通过与其连接的喷嘴喷射的墨水。 每个换能器协同地与一个通道相关联,该通道具有联接到两个或更多个喷嘴的叉构件或者与两个或更多个通道协作地关联,其中每个通道连接到一个或多个喷嘴。

    Thermal ink jet printhead extended droplet volume control
    7.
    发明授权
    Thermal ink jet printhead extended droplet volume control 失效
    热喷墨打印头延长液滴体积控制

    公开(公告)号:US06422677B1

    公开(公告)日:2002-07-23

    申请号:US09570976

    申请日:2000-05-15

    IPC分类号: B41J201

    摘要: A method and apparatus for controlling the volume of ink droplets ejected from printhead nozzles over a larger printhead operating temperature range. Each nucleating electrical pulse applied to the heating elements in the printhead to eject an ink droplet is preceded by a plurality of non-nucleating pre-pulses. Based upon the printhead temperature sensed, a controller selects the pre-pulse width and time width between pre-pulses from a look-up table.

    摘要翻译: 一种用于控制在较大打印头工作温度范围内从打印头喷嘴喷射的墨滴体积的方法和装置。 施加到打印头中的加热元件以喷射墨滴的每个成核电脉冲先于多个非成核预脉冲。 基于感测到的打印头温度,控制器从查找表中选择预脉冲之间的预脉冲宽度和时间宽度。

    Method and apparatus for fabrication of multibeam lasers
    8.
    发明授权
    Method and apparatus for fabrication of multibeam lasers 失效
    多波束激光器的制造方法和装置

    公开(公告)号:US5432535A

    公开(公告)日:1995-07-11

    申请号:US992681

    申请日:1992-12-18

    摘要: The present invention is a multispot laser light source assembled from at least two individual laser diodes in accordance with a design model. The multispot laser includes at least two semiconductor laser diodes, both of which are permanently affixed to a chip carrier. The chip carrier rigidly supports the diodes and conducts heat away from the the diodes to be dissipated by a heat sink. The present invention is further characterized by a predefined relationship between the chip carrier material, the relative dimensions of the chip carrier, and the separation distance of the diodes from the heatsink, which results in significant reduction in the thermal droop and crosstalk between the diodes.

    摘要翻译: 本发明是根据设计模型从至少两个单独的激光二极管组装的多射体激光光源。 多射线激光器包括至少两个半导体激光二极管,两者都永久地固定在芯片载体上。 芯片载体刚性支撑二极管,并将热量从二极管传导出来,以散热。 本发明的特征还在于芯片载体材料,芯片载体的相对尺寸和二极管与散热器的分离距离之间的预定关系,这导致二极管之间的热降低和串扰的显着降低。

    Random-dump storage buffer for moving web
    9.
    发明授权
    Random-dump storage buffer for moving web 失效
    用于移动Web的随机转储存储缓冲区

    公开(公告)号:US4181426A

    公开(公告)日:1980-01-01

    申请号:US934573

    申请日:1978-08-17

    摘要: A storage buffer for a moving web comprises a collection bin having a bottom triangular cavity, a top opening through which the web can be randomly dumped under the influence of gravity and a bottom opening through which the web is withdrawn from the collection bin on a first-in, first-out basis. The sloping bottom walls of the collection bin are provided with ridges to assure the maintenance of a gas bearing beneath the bottom-most layer of exiting web. Nozzles for directing pressurized gas into the collection bin are located on both sides of the web at the collection bin exit.

    摘要翻译: 用于移动幅材的存储缓冲器包括具有底部三角形空腔的收集箱,顶部开口,所述幅材可以在重力的影响下随机倾倒在所述收集箱中,所述底部开口通过所述底部开口在所述收集箱中从第一 - 先到先得。 收集箱的倾斜底壁设置有脊,以确保维持最下层出射纤维网下方的气体轴承。 用于将加压气体引导到收集箱中的喷嘴位于收集箱出口处的幅材的两侧。

    Ink jet printhead having a low cross talk ink channel structure
    10.
    发明授权
    Ink jet printhead having a low cross talk ink channel structure 失效
    具有低串扰油墨通道结构的喷墨打印头

    公开(公告)号:US06079819A

    公开(公告)日:2000-06-27

    申请号:US004640

    申请日:1998-01-08

    IPC分类号: B41J2/14 B41J2/16 B41J2/05

    摘要: An ink jet printhead is disclosed which has a heater plate containing the heating elements and driving circuitry means monolithographically formed on one surface thereof and the ink flow directing channel structure is formed on the heater plate using a layer of patternable polymeric material which, in one embodiment, is exposed using a mask to define the channel pattern then developed and cured. After curing, the patterned channel structure is polished to provide a smooth coplanar surface and a cover plate with an aperture therein is aligned and bonded to the channel structure to complete the printhead. The aperture serves as both ink inlet and a portion of the ink reservoir. The channels are open at one end and serve as the droplet ejecting nozzles, while the other ends are closed and extend beneath the cover plate aperture to provide a baffled portion of the ink reservoir and prevent cross-talk between the ink channels. In another embodiment, the channels ends opposite the nozzles open into a common recess with the channels walls extending therein to function as baffles and prevent cross-talk.

    摘要翻译: 公开了一种喷墨打印头,其具有包含加热元件的加热器板和在其一个表面上以光学方式形成的驱动电路装置,并且使用可图案化的聚合物材料层在加热器板上形成墨流动引导通道结构,在一个实施例中 ,使用掩模曝光以定义通道图案然后显影和固化。 在固化之后,对图案化的通道结构进行抛光以提供平滑的共面表面,并且其中具有孔的盖板对准并结合到通道结构以完成打印头。 该孔用作墨水入口和墨水储存器的一部分。 通道在一端开口并用作液滴喷嘴,而另一端封闭并延伸到盖板孔下方,以提供墨水容器的挡板部分并防止油墨通道之间的串扰。 在另一个实施例中,通道与喷嘴相对地开口,开口成共同的凹槽,通道壁延伸到其中,用作挡板并防止串扰。