Apparatus for controlling temperature profiles in liquid droplet ejectors
    1.
    发明授权
    Apparatus for controlling temperature profiles in liquid droplet ejectors 失效
    用于控制液滴喷射器中的温度曲线的装置

    公开(公告)号:US07057138B2

    公开(公告)日:2006-06-06

    申请号:US10830688

    申请日:2004-04-23

    IPC分类号: H05B1/00

    摘要: A heater is provided. The heater includes a first material having a circular form and a first sheet resistively. The first material has a first radius of curvature. The heater also includes a second material having a circular form and a second sheet resistively. The second material is positioned adjacent to the first material and has a second radius of curvature. The first radius of curvature is greater than the second radius of curvature and the first sheet resistively is less than the second sheet resistively.

    摘要翻译: 提供加热器。 加热器包括具有圆形形状的第一材料和第一片电阻。 第一材料具有第一曲率半径。 加热器还包括具有圆形形式的第二材料和第二薄片电阻。 第二材料定位成与第一材料相邻并且具有第二曲率半径。 第一曲率半径大于第二曲率半径,第一片电阻小于第二片电阻。

    Electrostatic fluid ejector with dynamic valve control
    3.
    发明授权
    Electrostatic fluid ejector with dynamic valve control 失效
    具有动态阀门控制功能的静电喷射器

    公开(公告)号:US06702209B2

    公开(公告)日:2004-03-09

    申请号:US10138908

    申请日:2002-05-03

    IPC分类号: B05B300

    CPC分类号: B41J2/14314

    摘要: A drop-on-demand liquid emission device, such as for example an ink jet printer, includes a member movable through a path for driving liquid from the device, wherein the speed at which the member moves is reduced over the time period that liquid is being expelled. During that time period, a portion of the liquid flows through a passage away from the nozzle orifice. According to a feature of the present invention, a variable flow restrictor increases the resistance to flow through the passage during the time period that liquid is being expelled; thereby tending to compensate for the reduction of the liquid-expulsion force over the time period. The result is a reduction of undesirable satellite droplets following a main drop.

    摘要翻译: 液滴喷射装置例如喷墨打印机包括可移动通过用于从装置驱动液体的路径的构件,其中构件移动的速度在液体为 被驱逐 在该时间段期间,一部分液体流过远离喷嘴孔的通道。 根据本发明的特征,可变流量限制器在液体被排出的时间段内增加了通过通道的流动阻力; 从而有助于补偿在该时间段内液体排出力的减少。 结果是在主下降之后减少不期望的卫星液滴。

    Continuous printing using temperature lowering pulses
    4.
    发明授权
    Continuous printing using temperature lowering pulses 有权
    使用降温脉冲进行连续打印

    公开(公告)号:US07988250B2

    公开(公告)日:2011-08-02

    申请号:US12903244

    申请日:2010-10-13

    CPC分类号: B41J2/03 B41J2002/022

    摘要: A printer includes a printhead and a source of liquid. The printhead includes a nozzle bore. The liquid is under pressure sufficient to eject a column of the liquid through the nozzle bore. The liquid has a temperature. A thermal modulator is associated with the nozzle bore. The thermal modulator is operable to transiently lower the temperature of the liquid as the liquid is ejected through the nozzle bore. An electrical pulse source is in electrical communication with the thermal modulator. The electrical pulse source is operable to provide a series of pulses to the thermal modulator that control the transient temperature lowering of the liquid. The series of pulses includes a first pulse applied at a first power level for transferring heat to the liquid, a second pulse applied at a second power level for transferring heat to the liquid, and a third pulse applied at a third power level for transferring heat to the liquid. The third power level is in between the first power level and the second power level.

    摘要翻译: 打印机包括打印头和液体源。 打印头包括喷嘴孔。 液体的压力足以通过喷嘴孔喷出液体柱。 液体有一个温度。 热调制器与喷嘴孔相关联。 热调制器可操作以在液体通过喷嘴孔喷出时瞬时降低液体的温度。 电脉冲源与热调制器电连通。 电脉冲源可操作以向控制瞬态温度降低的热调制器提供一系列脉冲。 所述一系列脉冲包括以第一功率电平施加的用于将热量传送到液体的第一脉冲,以第二功率电平施加的用于将热传递到液体的第二脉冲,以及以第三功率电平施加以传递热量的第三脉冲 到液体。 第三功率电平处于第一功率电平和第二功率电平之间。

    Drop-on-demand liquid emission using asymmetrical electrostatic device
    5.
    发明授权
    Drop-on-demand liquid emission using asymmetrical electrostatic device 失效
    使用不对称静电装置的按需喷液发射

    公开(公告)号:US06715704B2

    公开(公告)日:2004-04-06

    申请号:US10155306

    申请日:2002-05-23

    IPC分类号: B05B500

    CPC分类号: B41J2/14314

    摘要: A liquid emission device includes a chamber having a nozzle orifice. Separately addressable dual electrodes are positioned on opposite sides of a central electrode. The three electrodes are aligned with the nozzle orifice. A rigid electrically insulating coupler connects the two addressable electrodes. To eject a drop, an electrostatic charge is applied to the addressable electrode nearest to the nozzle orifice, which pulls that electrode away from the orifice, drawing liquid into the expanding chamber. The other addressable electrode moves in conjunction, storing potential energy in the system. Subsequently the addressable electrode nearest to the nozzle is de-energized and the other addressable electrode is energized, causing the other electrode to be pulled toward the central electrode in conjunction with the release of the stored elastic potential energy. This action pressurizes the liquid in the chamber behind the nozzle orifice, causing a drop to be ejected from the nozzle orifice.

    摘要翻译: 液体排放装置包括具有喷嘴孔的室。 单独寻址的双电极位于中心电极的相对侧上。 三个电极与喷嘴孔对齐。 刚性电绝缘耦合器连接两个可寻址电极。 为了喷射液滴,静电电荷施加到最接近喷嘴孔的可寻址电极,该电极将该电极拉离孔口,将液体引入扩张室。 其他可寻址电极一起移动,将势能存储在系统中。 随后,最接近喷嘴的可寻址电极被断电,另一个可寻址电极通电,使另一个电极与存储的弹性势能的释放一起被拉向中心电极。 这种作用使喷嘴孔后面的腔中的液体加压,导致从喷嘴口喷出的液滴。

    Drop-on-demand liquid emission using asymmetrical electrostatic device
    6.
    发明授权
    Drop-on-demand liquid emission using asymmetrical electrostatic device 失效
    使用不对称静电装置的按需喷液发射

    公开(公告)号:US06626520B1

    公开(公告)日:2003-09-30

    申请号:US10153990

    申请日:2002-05-23

    IPC分类号: B41J204

    CPC分类号: B41J2/14314

    摘要: A liquid emission device includes a chamber having a nozzle orifice. Separately addressable dual electrodes are positioned on opposite sides of a central electrode. The three electrodes are aligned with the nozzle orifice. A rigid electrically insulating coupler connects the two addressable electrodes. To eject a drop, an electrostatic charge is applied to the addressable electrode nearest to the nozzle orifice, which pulls that electrode away from the orifice, drawing liquid into the expanding chamber. The other addressable electrode moves in conjunction, storing potential energy in the system. Subsequently the addressable electrode nearest to the nozzle is de-energized and the other addressable electrode is energized, causing the other electrode to be pulled toward the central electrode in conjunction with the release of the stored elastic potential energy. This action pressurizes the liquid in the chamber behind the nozzle orifice, causing a drop to be ejected from the nozzle orifice.

    摘要翻译: 液体排放装置包括具有喷嘴孔的室。 单独寻址的双电极位于中心电极的相对侧上。 三个电极与喷嘴孔对齐。 刚性电绝缘耦合器连接两个可寻址电极。 为了喷射液滴,静电电荷施加到最接近喷嘴孔的可寻址电极,该电极将该电极拉离孔口,将液体引入扩张室。 其他可寻址电极一起移动,将势能存储在系统中。 随后,最接近喷嘴的可寻址电极被断电,另一个可寻址电极通电,使另一个电极与存储的弹性势能的释放一起被拉向中心电极。 这种作用使喷嘴孔后面的腔中的液体加压,导致从喷嘴口喷出的液滴。

    Active compensation for changes in the direction of drop ejection in an inkjet printhead
    7.
    发明授权
    Active compensation for changes in the direction of drop ejection in an inkjet printhead 失效
    有效补偿喷墨打印头中液滴喷射方向的变化

    公开(公告)号:US06561616B1

    公开(公告)日:2003-05-13

    申请号:US09696536

    申请日:2000-10-25

    IPC分类号: B41J2015

    摘要: For an inkjet printhead (10) with integral compensation for misdirection of ink drops (37) ejected through at least one nozzle (24) of the printhead (10), a system and method of modifying the nozzle cavity space (32a) so as to compensate for the effects of defects in the printhead (10) by altering the direction the ejected ink drops (37). The inkjet printhead (10) comprises at least one reservoir (28) integrated within the membrane (30). The inkjet printhead (10) also comprises a channel (38) extending from the reservoir (28) and terminating in the nozzle cavity (32). A hardening substance (40) within the reservoir (28) and channel (38) is a plastic material having a high thermal expansion coefficient. An internal heater (48) within the reservoir (28) and adjacent the hardening substance (40) is adapted to cause the plastic material (40) to flow in order to form a protrusion (44) of plastic material (40) within the nozzle cavity space (32a). Alternatively, the plastic material (40) can be recessed within the channel (38). Thus, the hardening substance (40) is adapted to internally alter the nozzle cavity space (32a) and cause ink (34) ejected from the nozzle opening (26) to be deflected with regard to a desired amount of compensation.

    摘要翻译: 对于对通过打印头(10)的至少一个喷嘴(24)喷射的墨滴(37)的错误定向的整体补偿的喷墨打印头(10),一种改变喷嘴腔空间(32a)的系统和方法, 通过改变喷射的墨滴(37)的方向来补偿打印头(10)中的缺陷的影响。 喷墨打印头(10)包括集成在膜(30)内的至少一个贮存器(28)。 喷墨打印头(10)还包括从储存器(28)延伸并终止于喷嘴腔(32)中的通道(38)。 储存器(28)和通道(38)内的硬化物质(40)是具有高热膨胀系数的塑料材料。 在储存器(28)内并与硬化物质(40)相邻的内部加热器(48)适于使塑料材料(40)流动,以在喷嘴内形成塑料材料(40)的突起(44) 空腔(32a)。 或者,塑料材料(40)可以凹入通道(38)内。 因此,硬化物质(40)适于在内部改变喷嘴腔空间(32a)并使得从喷嘴开口(26)喷出的油墨(34)相对于期望的补偿量而偏转。

    CONTINUOUS PRINTING USING TEMPERATURE LOWERING PULSES
    9.
    发明申请
    CONTINUOUS PRINTING USING TEMPERATURE LOWERING PULSES 有权
    连续打印使用温度降低脉冲

    公开(公告)号:US20110025741A1

    公开(公告)日:2011-02-03

    申请号:US12903244

    申请日:2010-10-13

    IPC分类号: B41J29/38

    CPC分类号: B41J2/03 B41J2002/022

    摘要: A printer includes a printhead and a source of liquid. The printhead includes a nozzle bore. The liquid is under pressure sufficient to eject a column of the liquid through the nozzle bore. The liquid has a temperature. A thermal modulator is associated with the nozzle bore. The thermal modulator is operable to transiently lower the temperature of the liquid as the liquid is ejected through the nozzle bore. An electrical pulse source is in electrical communication with the thermal modulator. The electrical pulse source is operable to provide a series of pulses to the thermal modulator that control the transient temperature lowering of the liquid. The series of pulses includes a first pulse applied at a first power level for transferring heat to the liquid, a second pulse applied at a second power level for transferring heat to the liquid, and a third pulse applied at a third power level for transferring heat to the liquid. The third power level is in between the first power level and the second power level.

    摘要翻译: 打印机包括打印头和液体源。 打印头包括喷嘴孔。 液体的压力足以通过喷嘴孔喷出液体柱。 液体有一个温度。 热调制器与喷嘴孔相关联。 热调制器可操作以在液体通过喷嘴孔喷出时瞬时降低液体的温度。 电脉冲源与热调制器电连通。 电脉冲源可操作以向控制瞬态温度降低的热调制器提供一系列脉冲。 所述一系列脉冲包括以第一功率电平施加的用于将热量传送到液体的第一脉冲,以第二功率电平施加的用于将热传递到液体的第二脉冲,以及以第三功率电平施加以传递热量的第三脉冲 到液体。 第三功率电平处于第一功率电平和第二功率电平之间。