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    • 9. 发明申请
    • Individual jet voltage trimming circuitry
    • 单独的喷射电压调整电路
    • US20050041073A1
    • 2005-02-24
    • US10642951
    • 2003-08-18
    • Richard FontaineScott LegerDaniel CotePaul HoisingtonMelvin BiggsTodd Boucher
    • Richard FontaineScott LegerDaniel CotePaul HoisingtonMelvin BiggsTodd Boucher
    • B41J2/045B41J29/38
    • B41J2/0452B41J2/04541B41J2/04573B41J2/04581B41J2/04588B41J2/0459B41J2/04591B41J2/04593B41J2/04596
    • Apparatus including a plurality of droplet ejection devices, an electric source and a controller. Each droplet ejection device includes a fluid chamber having an ejection nozzle, an electrically actuated displacement device associated with the chamber, and a switch having an input connected to the electric source, an output connected to the electrically actuated displacement device, and a control signal input that is controlled by the controller to control whether the input (and thus the electric source) is connected to the output (and thus the electrically actuated device). The electrically actuated displacement device moves between a displaced position and an undisplaced position to change the volume of the chamber as a capacitance associated with the electrically actuated displacement device changes in charge between an actuated condition and an unactuated condition. The controller provides respective charge control signals to respective control signal inputs to control the extent of change in charge on respective capacitances by the time that the respective switch connects the electrical signal to the respective electrically actuated displacement device.
    • 装置包括多个液滴喷射装置,电源和控制器。 每个液滴喷射装置包括具有喷射喷嘴,与腔室相关联的电致动位移装置的流体室和具有连接到电源的输入的开关,连接到电动位移装置的输出端和控制信号输入端 其由控制器控制以控制输入(以及因此的电源)是否连接到输出端(以及电驱动装置)。 电驱动的位移装置在位移位置和未置换位置之间移动以改变腔室的体积,因为与致动位移装置相关联的电容在致动状态和未致动状态之间变化。 控制器向相应的控制信号输入端提供相应的充电控制信号,以控制相应开关将电信号连接到相应的电驱动位移装置的时间上的相应电容上的电荷变化程度。
    • 10. 发明授权
    • Ink supply system for an ink jet head
    • 用于喷墨头的供墨系统
    • US4937598A
    • 1990-06-26
    • US319630
    • 1989-03-06
    • Nathan P. HinePaul A. HoisingtonCharles W. Spehrley, Jr.Melvin BiggsRichard Carden
    • Nathan P. HinePaul A. HoisingtonCharles W. Spehrley, Jr.Melvin BiggsRichard Carden
    • B41J2/175B41J2/19G01D15/18
    • B41J2/175B41J2/19B41J2/17596B41J2202/12
    • In the representative ink supply system described in the specification, continuous circulation of ink in an ink jet head is accomplished by providing two reservoirs connected to each ink jet orifice through corresponding passages so that ink flows continuously from a high-level reservoir past the orifice to a low-level reservoir. The difference between the levels of ink in the reservoirs is maintained relatively constant by inertial pumping during reciprocal motion of the ink jet head or by pressure transfer of ink from one reservoir to the other reservoir. Cross-flow purging of air or debris from the ink jet head is effected by covering the ink jet orifices and applying air pressure to one reservoir to cause ink and any trapped air or debris to flow from the head to the other reservoir. A pump responsive to reciprocal motion of the ink jet head generates a positive air pressure which is applied during purging and a negative air pressure which is applied to a deaerator for removing dissolved air from the ink.
    • 在本说明书中描述的代表性供墨系统中,油墨在喷墨头中的连续循环通过提供通过相应通道连接到每个喷墨孔的两个储存器来实现,使得墨水从高级储存器连续流过孔, 一个低层次的水库。 通过在喷墨头的往复运动期间的惯性泵送或通过将油墨从一个储存器压力转移到另一储存器,储存器中的墨水量之间的差异保持相对恒定。 通过覆盖喷墨孔并将空气压力施加到一个储存器以使油墨和任何被捕获的空气或碎屑从头部流到另一个储存器来实现来自喷墨头的空气或碎屑的交叉流吹扫。 响应于喷墨头的往复运动的泵产生在吹扫期间施加的正空气压力和施加到脱气器的负空气压力,以从油墨中除去溶解的空气。