利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

49 条记录 (耗时 0.012 秒)

    Acoustic ink printing
    12.
    发明公开
    Acoustic ink printing 失效
    喷墨打印

    公开(公告)号：EP0400955A3

    公开(公告)日：1991-01-30

    申请号：EP90305805.5

    申请日：1990-05-29

    申请人： XEROX CORPORATION

    发明人： Khuri-Yakub, Butrus T. ,  Elrod, Scott A. ,  Quate, Calvin F. ,  Rawson, Eric G. ,  Hadimioglu, Babur B.

    IPC分类号： B41J2/015

    CPC分类号： B41J2/14008 ,  B41J2002/14322

    摘要： An acoustic ink printer (10) comprises a pool of liquid ink (14) having a free surface in intimate contact with the inner face of a perforated membrane (32). The printer (10) addresses all pixel positions within its image field via substantially-uniform, relatively large diameter apertures (33) which extend through the membrane (32) on centers that are aligned with respective ones of the pixel positions. In operation, one or more focused acoustic beams (16) selectively eject individual droplets of ink from the ink menisci that extend across the apertures (33). Accordingly, the membrane (32) is positioned, and the bias pressure applied (14) to the ink is selected, so that the menisci essentially remain within the focal plane of such beam or beams (16).

    Acoustic printheads
    13.
    发明公开
    Acoustic printheads 失效
    声学打印头

    公开(公告)号：EP0272155A3

    公开(公告)日：1989-06-14

    申请号：EP87311226.2

    申请日：1987-12-18

    申请人： XEROX CORPORATION

    发明人： Elrod, Scott Alan ,  Khuri-Yakub, Butrus T. ,  Quate, Calvin F

    IPC分类号： B41J2/045

    CPC分类号： B41J2/14008 ,  B41J2002/14322

    摘要： The output surface (18) of an acoustic printhead (10) having one or more concave acoustic beam-forming devices for supplying focused acoustic beams (17) to eject droplets (19) of ink (13) on demand from the surface (18) of a pool of ink (13) is planarized by filling those concave devices with a solid material (21) having an acoustic impedance and an acoustic velocity which are intermediate the acoustic impedance and the acoustic velocity, respectively, of the ink (13) and of the printhead (10). This not only facilitates the cleaning of the printhead (10), but also eliminates the edges upon which an optional ink transport or the like may tend to drag. The outer surface of the filler (21) may be essentially flush with the face of the printhead (10), or the filler (21) may overcoat the printhead (10).

    摘要翻译： 具有一个或多个凹形声束形成装置的声学打印头（10）的输出表面（18）用于根据需要从表面（18）提供聚焦声束（17）以喷射墨水（13）的液滴（19） （13）的声阻抗和声速分别介于中间的声阻抗和声速的固体材料（21）填充这些凹形装置，从而平坦化墨水池（13） 的打印头（10）。 这不仅便于清洁打印头（10），而且还消除了任选的墨输送或类似物可能趋于拖曳的边缘。 填充物（21）的外表面可以基本上与打印头（10）的表面齐平，或者填充物（21）可以覆盖打印头（10）。

    Acoustic printheads
    14.
    发明公开
    Acoustic printheads 失效
    AkustischeDruckköpfe。

    公开(公告)号：EP0272899A2

    公开(公告)日：1988-06-29

    申请号：EP87311223.9

    申请日：1987-12-18

    申请人： XEROX CORPORATION

    发明人： Elrod, Scott Alan ,  Khuri-Yakub, Butrus T. ,  Quate, Calvin F.

    IPC分类号： B41J2/04

    CPC分类号： B41J2/14008 ,  B41J2/155 ,  B41J2002/14322

    摘要： To facilitate the fabrication of acoustic printheads (11), arrays of spherical acoustic lenses (12a-12i) are provided for bringing rf acoustic waves to essentially diffraction-limited foci at or near the free surface of a pool of ink. These lenses (12a-12i) produce focal patterns which are relatively free of localized amplitude variations, so they may be employed to fabricate acoustic printheads (11) having relatively stable characteristics for acoustic printing.

    摘要翻译： 为了便于声学打印头（11）的制造，提供了球形声透镜阵列（12a-12i），用于将rf声波基本上衍生为受限于在墨水池的自由表面附近的表面的焦点。 这些透镜（12a-12i）产生相对没有局部振幅变化的焦点图案，因此它们可用于制造具有相对稳定的声学打印特性的声学打印头（11）。

    Leaky Rayleigh wave nozzleless liquid droplet ejectors
    15.
    发明公开
    Leaky Rayleigh wave nozzleless liquid droplet ejectors 失效
    Düsenlosemit Rayleigh Wellen arbeitende LeckstrahlerfürFlüssigkeitstropfen。

    公开(公告)号：EP0216589A2

    公开(公告)日：1987-04-01

    申请号：EP86307099.1

    申请日：1986-09-16

    申请人： XEROX CORPORATION

    发明人： Quate, Calvin F. ,  Khuri-Yakub, Butrus T.

    IPC分类号： B41J2/045

    CPC分类号： B41J2/14008 ,  B41J2002/14322

    摘要： A nozzleless print head for ink jet printing and the like comprises one or more essentially planar surface acoustic wave transducers (12a) which are submerged at a predetermined depth in a liquid filled reservoir (13a) so that each of the transducers (12a) launches a converging cone of leaky, coherent Rayleigh waves into the reservoir, thereby producing an acoustic beam (33a) which comes to a generally circular focus at or near the surface (17) of the reservoir (13a) (i.e., the liquid/air interface). The acoustic beam (33a) may be intensity modulated to control the ejection timing, or an external source (34) may be used to extract droplets from the acoustically excited liquid on the surface (17) of the reservoir (13a) on demand. Regardless of the timing mechanism employed, the size of the ejected droplets is determined by the waist diameter of the focused acoustic beam (33a). To control, the direction in which the droplets are ejected, provision (43, 44) may be made for producing a controllable acoustical asymmetry for steering the focused acoustic beam (33a) in a direction generally parallel to the surface (17) of the reservoir (13a).

    摘要翻译： 用于喷墨打印等的无喷嘴打印头包括一个或多个基本上平面的表面声波换能器（12a），其在液体填充的储存器（13a）中浸没在预定深度处，使得每个换能器（12a）发射 将泄漏的相干瑞利波的会聚锥体进入储存器，由此产生在储存器（13a）的表面（即液体/空气界面）处或附近的大致圆形焦点的声束（33a） 。 声束（33a）可以被强度调制以控制喷射定时，或者可以使用外部源（34）来根据需要从储液器（13a）的表面（17）上的声吸收液体中提取液滴。 不管使用的定时机构如何，喷射的液滴的尺寸由聚焦的声束（33a）的腰部直径决定。 为了控制喷射液滴的方向，可以设置（43,44）以产生可控的声学不对称性，用于在大致平行于储层的表面（17）的方向上转向聚焦的声束（33a） （13A）。

    Surface ripple wave diffusion by non-retroreflective aperture configurations for acoustic ink printers
    20.
    发明公开
    Surface ripple wave diffusion by non-retroreflective aperture configurations for acoustic ink printers 失效
    表面由用于声墨打印机非逆反射孔构造声波散射。

    公开(公告)号：EP0549243A1

    公开(公告)日：1993-06-30

    申请号：EP92311464.9

    申请日：1992-12-16

    申请人： XEROX CORPORATION

    发明人： Rawson, Eric G. ,  Elrod, Scott A. ,  Hadimioglu, Babur B. ,  Quate, Calvin F. ,  Khuri-Yakub, Butrus T.

    IPC分类号： B41J2/045 ,  B41J2/055

    CPC分类号： B41J2/14008 ,  B41J2002/14322

    摘要： The free ink surface levels (13) of acoustic ink printers (11) are controlled by cap structures (31) that have substantially non-retroreflective aperture configurations. The non-retroreflective configurations of the apertures (32,42) of these cap structures (31) cause diffusive scattering or directional deflection of the reflected surface ripple waves, thereby significantly reducing the time that is required for the oscillatory perturbations, which are caused by reflection of the surface ripple waves that are generated during the droplet ejection process, to dissipate to a negligibly low amplitude in the critical local areas of the ejection sites. This, in turn, increases the droplet ejection rates at which printers (11) having such cap structures (31) can be operated asynchronously.

    摘要翻译： 声控喷墨打印机（11）的自由墨水表面能级（13）由盖结构（31）thathave基本上非逆反射孔结构进行控制。 论文帽结构的孔径（32,42）（31）所述的非回射结构使反射表面波纹波的漫射散射或定向偏转，从而显着降低并需要用于振荡的扰动，这是由引发的时间 没有被在液滴喷射过程中产生的表面波纹波的反射，以耗散到可忽略的低振幅在喷射点的临界局部区域。 这，反过来，增加在研究了帽结构在哪些打印机液滴喷射速率（11）（31）可以异步操作。