Off center heaters for thermal ink jet printheads
    1.
    发明授权
    Off center heaters for thermal ink jet printheads 失效
    用于热喷墨打印头的中心加热器

    公开(公告)号:US5410340A

    公开(公告)日:1995-04-25

    申请号:US155505

    申请日:1993-11-22

    摘要: An ink jet printhead having off center or offset heaters or thermal transducers to reduce heater damage. The printhead has heaters located beneath channels to eject ink from the channel through a nozzle to a substrate for printing. Edge heaters are spaced away from the dicing edges of the heater plate to avoid damage resulting from dicing for assembly or from thermal expansion due to adjacent printheads if used to form a page width or large array printhead. The spacing distance between the edge heaters to adjacent equally spaced heaters on the same printhead is less than the distance between adjacent equally spaced heaters. Edge heaters are also offset from the centerline of respective channels in the printhead.

    摘要翻译: 具有偏心加热器或热转换器的喷墨打印头,以减少加热器损坏。 打印头具有位于通道下方的加热器,以通过喷嘴将油墨从通道喷射到基板以进行打印。 边缘加热器与加热器板的切割边缘间隔开,以避免由于相邻打印头的组装或热膨胀而导致的损坏,如果用于形成页面宽度或大阵列打印头。 边缘加热器与同一打印头上相邻等间距加热器之间的间隔距离小于相邻等间距加热器之间的距离。 边缘加热器也偏离打印头中相应通道的中心线。

    Printhead element butting
    3.
    发明授权
    Printhead element butting 失效
    打印头元件对接

    公开(公告)号:US5755024A

    公开(公告)日:1998-05-26

    申请号:US573733

    申请日:1995-12-18

    IPC分类号: B41J2/05 B41J2/16 H05B3/00

    摘要: A large array or pagewidth printhead fabricated from printhead elements or subunits. The printhead subunits are butted together at either adjacent channel elements or adjacent heater elements to form a pagewidth printhead. The butting element, either heater or channel element, is slightly wider than the non-butting element thereby providing gaps between the non-butting elements of a printhead element array. Where channel elements are used as the butting element, gaps between the heater elements provide for reduction or elimination of potentially damaging thermal compressive forces between adjacent heater elements. Where heater elements are used as the butting element, structural strength is increased since the heater wafer is stronger than the channel wafer. In addition, the width of the polyimide wall at the edges of the heater wafer is increased providing greater protection for thermal transducers located at the edges of individual heater elements.

    摘要翻译: 由打印头元件或子单元制造的大阵列或页宽打印头。 打印头子单元在相邻的通道元件或相邻的加热器元件对接在一起以形成页宽打印头。 对接元件(加热器或通道元件)比非对接元件稍宽,从而在打印头元件阵列的非对接元件之间提供间隙。 在使用通道元件作为对接元件的情况下,加热器元件之间的间隙用于减少或消除相邻加热器元件之间潜在的有害的热压缩力。 当加热器元件用作对接元件时,由于加热器晶片比通道晶片更强,所以结构强度增加。 此外,加热器晶片边缘处的聚酰亚胺壁的宽度增加,为位于各个加热器元件边缘的热传感器提供更大的保护。

    Full width array read or write bars having low induced thermal stress
    4.
    发明授权
    Full width array read or write bars having low induced thermal stress 失效
    具有低感应热应力的全宽阵列读或写条

    公开(公告)号:US5528272A

    公开(公告)日:1996-06-18

    申请号:US166855

    申请日:1993-12-15

    IPC分类号: B41J2/14 B41J2/155

    摘要: A full width read and/or write assemblies, such as a full width thermal ink jet printbar, is disclosed, having materials with both a high thermal coefficient of expansion and a low thermal coefficient of expansion. A suitable adhesive which provides lateral give while firmly holding the respective components together provides dimensional stability to the printbar element having a low thermal coefficient of expansion when components having high thermal coefficient of expansion are assembled thereto. The flexible or floating mounting enabled by lateral give of the adhesive allows for the application of cost effective materials with a high thermal coefficient of expansion to be used for support functions such as, for example, circuit boards and ink manifolds. The flexible or floating mounting relieves shear stress cased by a differential in the expansion or contraction of materials having a different thermal coefficient of expansion. Since the thermal expansion of the various components expand and contract from a center location thereof, this center location is bonded by an adhesive which does not provide lateral give, so that alignment between parts are maintained while the remainder of the respective components float relative to each other and prevent thermally induced stresses which tend to cause warpage.

    摘要翻译: 公开了一种全宽度读/写组件,例如全宽度热喷墨印刷棒,其具有高热膨胀系数和低热膨胀系数的材料。 当将具有高热膨胀系数的部件组装在一起时,提供侧向赋予的合适的粘合剂同时牢固地保持各个部件一起为具有低热膨胀系数的打印头元件提供尺寸稳定性。 通过侧面给予粘合剂的柔性或浮动安装允许将具有高热膨胀系数的成本有效的材料应用于诸如电路板和油墨歧管的支撑功能。 柔性或浮动式安装可减轻由不同热膨胀系数的材料的膨胀或收缩差异引起的剪切应力。 由于各种部件的热膨胀从其中心位置膨胀和收缩,所以该中心位置通过不提供横向给定的粘合剂粘结,从而保持部件之间的对准,同时各部件的其余部分相对于每个部件浮动 另一种并防止易引起翘曲的热致应力。

    Ultrasonic laminating of materials for ink jet printheads
    6.
    发明授权
    Ultrasonic laminating of materials for ink jet printheads 有权
    用于喷墨打印头的材料的超声层压

    公开(公告)号:US08919915B2

    公开(公告)日:2014-12-30

    申请号:US13401178

    申请日:2012-02-21

    IPC分类号: B41J2/01

    摘要: A method for assembling a printhead such as an ink jet printhead can include the use of an ultrasonic bonding process to bond two or more printhead layers together. In an embodiment, an ultrasonic frequency is directed to an interface between a first layer and a second layer to generate heat at the interface. In an embodiment, the heat melts at least one of the first layer and the second layer, and the layers are cooled to cure the melted layer. In another embodiment, the heat generated using the ultrasonic frequency cures an adhesive layer between the first layer and the second layer. The ultrasonic lamination process described can result in a fluid-tight seal which requires less processing time and materials over an adhesive-based process.

    摘要翻译: 用于组装诸如喷墨打印头的打印头的方法可以包括使用超声波接合工艺将两个或更多个打印头层粘合在一起。 在一个实施例中,超声波频率被引导到第一层和第二层之间的界面,以在界面处产生热量。 在一个实施例中,热量熔化第一层和第二层中的至少一层,并且将层冷却以固化熔融层。 在另一个实施例中,使用超声频率产生的热量固化在第一层和第二层之间的粘合剂层。 所描述的超声波层压方法可以产生流体密封,其在基于粘合剂的方法上需要较少的处理时间和材料。

    High density multilayer interconnect for print head
    7.
    发明授权
    High density multilayer interconnect for print head 有权
    用于打印头的高密度多层互连

    公开(公告)号:US08585183B2

    公开(公告)日:2013-11-19

    申请号:US13053968

    申请日:2011-03-22

    IPC分类号: B41J2/045

    CPC分类号: B41J2/14233 B41J2/161

    摘要: A method for forming an ink jet print head can include attaching a plurality of piezoelectric elements to a diaphragm, dispensing an interstitial layer over the diaphragm, and forming a plurality of patterned conductive traces on the interstitial layer to physically and electrically contact the plurality of piezoelectric elements. The plurality of patterned traces can be formed using, for example, photolithography, a lift-off process, laser ablation, etc. Electrical communication between the plurality of patterned conductive traces and the plurality of piezoelectric elements can be established through surface contact between the two structures, without the requirement of a separate conductor.

    摘要翻译: 用于形成喷墨打印头的方法可以包括将多个压电元件附接到隔膜,在隔膜上分配间隙层,以及在间隙层上形成多个图案化的导电迹线以物理地和电接触多个压电 元素。 可以使用例如光刻,剥离过程,激光烧蚀等形成多个图案化迹线。可以通过两个图案化导电迹线和两个压电元件之间的表面接触来建立多个图案化导电迹线与多个压电元件之间的电连接 结构,不需要单独的导体。

    Apparatus for reducing ink jet contamination
    8.
    发明授权
    Apparatus for reducing ink jet contamination 有权
    减少喷墨污染的设备

    公开(公告)号:US07520588B2

    公开(公告)日:2009-04-21

    申请号:US11318284

    申请日:2005-12-23

    IPC分类号: B41J2/165

    CPC分类号: B41J2/17593 B41J29/12

    摘要: An apparatus is used with an ink jet print head in an ink jet printer. The apparatus includes a print head protector that surrounds a print head. A substantially continuous slot is provided along a perimeter of the bracket and a filter is located in the substantially continuous slot. An inlet in fluid communication with the substantially continuous slot enables a positive pressure air supply to be coupled to the inlet. The air entering the inlet flows through the filter in the slot and the filtered air flows outwardly away from the print head.

    摘要翻译: 在喷墨打印机中使用喷墨打印头的装置。 该装置包括围绕打印头的打印头保护器。 沿支架的周边设置基本上连续的槽,并且过滤器位于基本连续的槽中。 与基本上连续的狭缝流体连通的入口使得能够将正压空气供应件联接到入口。 进入入口的空气流过槽中的过滤器,过滤后的空气从打印头向外流出。

    PRINTHEAD FABRICATION USING ADDITIVE MANUFACTURING TECHNIQUES
    9.
    发明申请
    PRINTHEAD FABRICATION USING ADDITIVE MANUFACTURING TECHNIQUES 有权
    使用添加剂制造技术的印刷机械制造

    公开(公告)号:US20130328975A1

    公开(公告)日:2013-12-12

    申请号:US13490053

    申请日:2012-06-06

    IPC分类号: B41J2/045 B23P17/00

    摘要: A printhead and methods for forming the printhead are provided. The printhead includes an additively manufactured printhead structure having multiple sintered material layers that correspond to discrete cross-sectional regions of the printhead structure, where each of the sintered material layers is integrally bonded to at least one other sintered material layer. The printhead further includes a polymer layer attached to a surface of the printhead structure, and the printhead structure includes one or more channels for flowing ink through the printhead structure, the one or more channels forming openings on at least one surface of the printhead structure.

    摘要翻译: 提供一种用于形成打印头的打印头和方法。 该打印头包括一个附加制造的打印头结构,其具有对应于打印头结构的离散横截面区域的多个烧结材料层,其中每个烧结材料层与至少一个其它烧结材料层整体结合。 打印头还包括附着到打印头结构的表面上的聚合物层,并且打印头结构包括用于使油墨通过打印头结构流动的一个或多个通道,一个或多个通道在打印头结构的至少一个表面上形成开口。

    High density electrical interconnect for printing devices using flex circuits and dielectric underfill
    10.
    发明授权
    High density electrical interconnect for printing devices using flex circuits and dielectric underfill 有权
    使用柔性电路和电介质底层填料的印刷设备的高密度电气互连

    公开(公告)号:US08585187B2

    公开(公告)日:2013-11-19

    申请号:US13097182

    申请日:2011-04-29

    IPC分类号: B41J2/045 H01L41/22

    摘要: A method for forming an ink jet print head can include attaching a plurality of piezoelectric elements to a diaphragm of a jet stack subassembly, electrically attaching a flex circuit to the plurality of piezoelectric elements, then dispensing an dielectric underfill between the flex circuit and the jet stack subassembly. The use of an underfill after attachment of the flex circuit eliminates the need for the patterned removal of an interstitial material from the tops of the piezoelectric elements, and removes the requirement for a patterned standoff layer. In an embodiment, electrical contact between the flex circuit and the piezoelectric elements is established through physical contact between bump electrodes of the flex circuit and the piezoelectric elements, without the use of a separate conductor, thereby eliminating the possibility of electrical shorts caused by misapplication of a conductor.

    摘要翻译: 用于形成喷墨打印头的方法可以包括将多个压电元件附接到喷射堆叠子组件的隔膜,将柔性电路电连接到多个压电元件,然后在柔性电路和喷射之间分配电介质底部填充物 堆栈子组件。 在安装柔性电路之后使用底部填料消除了从压电元件的顶部图案化去除间隙材料的需要,并且消除了对图案化间隔层的要求。 在一个实施例中,柔性电路和压电元件之间的电接触通过柔性电路的凸起电极与压电元件之间的物理接触来建立,而不使用单独的导体,从而消除了由于误插入引起的电气短路的可能性 指挥