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    • 6. 发明授权
    • Polymer internal contamination filter for ink jet printhead
    • 用于喷墨打印头的聚合物内部污染过滤器
    • US08702216B2
    • 2014-04-22
    • US13333068
    • 2011-12-21
    • Terrance L StephensJames D. PadgettJohn R. AndrewsAndrew W. Hays
    • Terrance L StephensJames D. PadgettJohn R. AndrewsAndrew W. Hays
    • B41J2/175
    • B41J2/1607B41J2/1629B41J2/1631B41J2/1634B41J2002/14403
    • A printhead for printing ink includes a particulate filter manufactured from a polymer sheet such as a polyimide sheet. Filter openings within the particulate filter can be formed using a mask and a laser beam to ablate exposed portions of the polymer sheet. Embodiments of the present teachings can result in the formation smaller filter openings at a smaller pitch within the polymer sheet than, for example, stainless steel particulate filters, and thus more openings which cover a larger percentage of the filter surface for a given filter size, which can result in a reduction of fluid pressure within the printhead. Thus smaller filter openings for improved filtering of smaller particulates can be formed while maintaining a sufficient ink flow at a sufficiently low pressure within the printhead during operation.
    • 用于印刷油墨的打印头包括由诸如聚酰亚胺片材的聚合物片材制成的微粒过滤器。 可以使用掩模和激光束来形成微粒过滤器内的过滤器孔,以消除聚合物片的暴露部分。 本教导的实施例可以导致在聚合物片材内以比例如不锈钢颗粒过滤器更小的间距形成更小的过滤器开口,因此,对于给定的过滤器尺寸,覆盖更大百分比的过滤器表面的更多的开口, 这可能导致打印头内的流体压力的降低。 因此,可以在操作期间形成用于改善过滤较小颗粒的较小的过滤器开口,同时在打印头内保持足够低的压力下的足够的油墨流动。
    • 8. 发明授权
    • Banding adjustment method for multiple printheads
    • 多个打印头的条带调整方法
    • US07766447B2
    • 2010-08-03
    • US11796787
    • 2007-04-30
    • Trevor James SnyderJames D. PadgettTerrance L. Stephens
    • Trevor James SnyderJames D. PadgettTerrance L. Stephens
    • B41J29/393
    • B41J2/2128
    • A banding adjustment method for an ink jet imaging device having a plurality of printheads comprises printing a plurality of test bands, each test band being printed by a plurality of printheads such that each printhead of the plurality prints a section of each test band. The drop mass generated by each printhead of the plurality is selectively adjusted between a default drop mass and an adjusted drop mass to print each test band of the plurality such that the plurality of printed test bands have various combinations of sections having the default drop mass and the adjusted drop mass. The user is then prompted to select a test band from the plurality of printed test bands.
    • 具有多个打印头的喷墨成像装置的条带调整方法包括打印多个测试带,每个测试带由多个打印头打印,使得多个打印头中的每个打印头打印每个测试带的一部分。 由多个打印头中的每个打印头产生的液滴质量在默认液滴质量和调节液滴质量之间进行选择性调节,以打印多个测试条带,使得多个打印测试条带具有各种具有默认液滴质量的部分组合, 调整后的液滴质量。 然后提示用户从多个打印的测试带中选择测试带。
    • 9. 发明申请
    • PRINTHEAD RESERVOIR WITH FILTER EXTERNAL TO JET FLUID PATH
    • 带过滤器外部喷射流体路径的PRINTHEAD RESERVOIR
    • US20080122912A1
    • 2008-05-29
    • US11563294
    • 2006-11-27
    • David P PlattDavid R KoehlerTerrance L. StephensJames D Padgett
    • David P PlattDavid R KoehlerTerrance L. StephensJames D Padgett
    • B41J2/175
    • B41J2/17563B41J2/175
    • A printhead reservoir has an input ink port and a chamber to receive ink from an ink source through the input ink port. The reservoir also has a filter in a path between the input ink port and the chamber. A printhead includes a reservoir having an input ink port, a chamber to receive ink from an ink source through the input port and a filter in a path between the input port and the storage plate. The printhead also includes an array of jets to draw ink from the chamber and control circuitry to control the jets so as to selectively output ink through the jets onto a substrate. A reservoir has a filter to receive ink, a vented chamber to collect ink received from the filter and at least one jet to receive ink from the vented chamber. The vented chamber is between the ink filter and the fluid path to the jets in order to remove the filter portion of the pressure drop to the jets.
    • 打印头储存器具有输入墨口和用于从墨源通过输入墨口接收墨的腔室。 储存器还在输入墨口和腔室之间的路径中具有过滤器。 打印头包括具有输入墨口的储存器,用于从墨源通过输入端口接收墨水的腔室和在输入口与储存板之间的路径中的过滤器。 打印头还包括喷嘴阵列,以从腔室中抽出墨水和控制电路来控制射流,以便通过射流将墨水选择性地输出到基底上。 储存器具有用于接收墨水的过滤器,用于收集从过滤器接收的油墨的通风室和至少一个喷嘴以从排气室接收油墨。 通气室位于墨水过滤器和喷射流体的流体路径之间,以便将压降的过滤器部分移除到喷嘴上。