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    • 5. 发明授权
    • Ink jet printer with resistance compensation circuit
    • 具有电阻补偿电路的喷墨打印机
    • US06976752B2
    • 2005-12-20
    • US10694697
    • 2003-10-28
    • George Keith ParishKristi Maggard RoweJohn Glenn Edelen
    • George Keith ParishKristi Maggard RoweJohn Glenn Edelen
    • B41J2/05
    • B41J2/04538B41J2/0457B41J2/0458
    • An ink jet printer includes a printhead control circuit that produces printhead command signals based on data signals provided by the printer. A power circuit actuates ink ejectors in response to the printhead command signals and includes a plurality of compensation circuits. Each ink ejector is associated with a single compensation circuit and each compensation circuit includes a number of switches connected in parallel with each other. Each switch in a single compensation circuit is connected to actuate a single ink ejector when the switch is turned on. The compensation circuits adjust their internal resistance by turning on more or less switches and thereby compensate for changing effective parasitic resistance of the power lines.
    • 喷墨打印机包括基于由打印机提供的数据信号产生打印头命令信号的打印头控制电路。 电源电路响应于打印头命令信号来致动墨水喷射器并且包括多个补偿电路。 每个喷墨器与单个补偿电路相关联,并且每个补偿电路包括彼此并联连接的多个开关。 当开关打开时,单个补偿电路中的每个开关连接以致动单个墨水喷射器。 补偿电路通过打开或多或少的开关来调整其内部电阻,从而补偿电源线的有效寄生电阻的变化。
    • 7. 发明授权
    • Inkjet printhead heater chip with asymmetric ink vias
    • 喷墨打印头加热芯片带有不对称墨水通孔
    • US07244015B2
    • 2007-07-17
    • US11269311
    • 2005-11-08
    • George Keith ParishKristi Maggard Rowe
    • George Keith ParishKristi Maggard Rowe
    • B41J2/05
    • B41J2/145B41J2/1404B41J2/14145
    • An inkjet printhead heater chip has an ink via asymmetrically arranged in a reciprocating direction of inkjet printhead movement. The ink via has two sides and a longitudinal extent substantially parallel to a print medium advance direction. A column of fluid firing elements exists exclusively along a single side of the two sides. The heater chip and ink via each have a centroid and neither resides coincidentally with one another. Preferably, the heater chip centroid resides externally to a boundary of the ink via. In other aspects, the column of fluid firing elements can be a sole column or plural and may be centered in the reciprocating direction. The ink via can be a sole via or plural. The heater chip can be rectangular and the ink vias can be closer to either the long or short ends thereof. Inkjet printers for housing the printheads are also disclosed.
    • 喷墨打印头加热器芯片具有沿喷墨打印头运动的往复运动方向不对称布置的墨通道。 油墨通孔具有基本上平行于打印介质前进方向的两个侧面和纵向长度。 一列流体发射元件仅沿着两侧的单侧存在。 加热器芯片和墨水通过每个具有质心,并且彼此不巧合。 优选地,加热器芯片重心位于墨通道的边界的外部。 在其他方面,流体点火元件的柱可以是单柱或多个,并且可以在往复方向上居中。 墨水通孔可以是唯一的通孔或复数。 加热器芯片可以是矩形的,并且墨通孔可以更靠近其长端或短端。 还公开了用于容纳打印头的喷墨打印机。
    • 9. 发明授权
    • Reduced size inkjet printhead heater chip having integral voltage regulator and regulating capacitors
    • 具有集成稳压器和调节电容器的缩小尺寸喷墨打印头加热器芯片
    • US06789871B2
    • 2004-09-14
    • US10331001
    • 2002-12-27
    • John Glenn EdelenGeorge Keith ParishKristi Maggard Rowe
    • John Glenn EdelenGeorge Keith ParishKristi Maggard Rowe
    • B41J29393
    • B41J2/04521B41J2/04541B41J2/04543B41J2/04548B41J2/0457B41J2/0458B41J2/17526
    • An inkjet printhead heater chip has an integral voltage regulator that derives two output voltages from a single chip input voltage. One of the two output voltages powers control logic circuitry as the other powers FET drivers. Preferred output voltages include +3.3 volts for the control logic circuitry and +7.5 volts for the FET drivers. A Vgs of the FET is about +7.5 volts which enables a FET area width of about 400 microns. Outputs of the control logic circuitry provide input to the FET drivers. A resistive heater for ejecting ink couples between a drain of the FET and the chip input voltage. Voltage regulating capacitors exist on the heater chip in parallel with the input voltage and each of the output voltages. Preferred capacitors have a gate oxide and a polysilicon layer overlying a substrate. Inkjet printers for housing the printheads are also disclosed.
    • 喷墨打印头加热器芯片具有从单个芯片输入电压导出两个输出电压的积分电压调节器。 两个输出电压之一为另一个供电FET驱动器供电控制逻辑电路。 优选的输出电压包括控制逻辑电路的+3.3伏特,FET驱动器的+7.5伏特。 FET的Vgs约为+7.5伏,这使得FET面积宽度约为400微米。 控制逻辑电路的输出为FET驱动器提供输入。 一种用于在FET的漏极和芯片输入电压之间喷射墨水耦合的电阻加热器。 电压调节电容器与输入电压和每个输出电压并联,存在于加热器芯片上。 优选的电容器具有覆盖在衬底上的栅极氧化物和多晶硅层。 还公开了用于容纳打印头的喷墨打印机。
    • 10. 发明授权
    • Method for making ink jet printheads
    • 制造喷墨打印头的方法
    • US06704996B2
    • 2004-03-16
    • US10357122
    • 2003-02-03
    • Jim Michael MrvosGeorge Keith ParishKristi Maggard Rowe
    • Jim Michael MrvosGeorge Keith ParishKristi Maggard Rowe
    • H05B300
    • B41J2/1603B41J2/1623B41J2/1626B41J2/1634B41J2/1645B41J2/1646Y10T29/49083
    • The invention provides a method for reducing ink corrosion of exposed metal layers on a chip surface of a semiconductor chip for an ink jet printhead. The method includes depositing a protective layer in a plasma process to the chip surface, the protective layer being deposited adjacent ink ejectors so that the protective layer substantially circumscribes an ink via in the chip. A thick film layer is applied to the protective layer and chip, whereby the protective layer and thick film layer are sufficient to promote increased adhesion between the thick film layer and a nozzle plate attached to the thick film layer thereby substantially reducing a tendency for the nozzle plate and thick film layer to delaminate from one another during printhead manufacture or use and interrupting contact between ink and the exposed metal layers on the chip surface.
    • 本发明提供一种用于降低喷墨打印头半导体芯片的芯片表面上暴露的金属层的油墨腐蚀的方法。 该方法包括将等离子体处理中的保护层沉积到芯片表面,保护层邻近墨水喷射器沉积,使得保护层基本上限制芯片中的墨通道。 将厚膜层施加到保护层和芯片上,由此保护层和厚膜层足以促进厚膜层和附着在厚膜层上的喷嘴板之间的附着力增加,从而大大降低了喷嘴的趋势 板和厚膜层在打印头制造或使用期间彼此分层,并且中断墨和芯片表面上暴露的金属层之间的接触。