Capping structure for droplet ejectors
    4.
    发明公开
    Capping structure for droplet ejectors 失效
    对于Tropfenabstrahler覆盖的结构。

    公开(公告)号:EP0636479A3

    公开(公告)日:1995-06-28

    申请号:EP94305669.7

    申请日:1994-07-29

    申请人: XEROX CORPORATION

    IPC分类号: B41J2/04 B41J2/065

    摘要: Droplet ejector apparatus (10) having a plurality of droplet ejecting ports (26) capable of ejecting ink droplets (16) onto a recording medium (18) and having a capping structure (12) that alleviates debris contamination. The capping structure (12) includes a plurality of openings (14), some of which allow ejected droplets (16) to pass onto the recording medium (18). The capping structure (12) is removably spaced above a channel plate (24) of the droplet ejector (10) using spacers (34) which mate with other openings (14) in the capping structure (12) and with indentations (32) in the channel plate (24).

    Ink jet apparatus
    6.
    发明公开
    Ink jet apparatus 失效
    喷墨设备

    公开(公告)号:EP0608879A1

    公开(公告)日:1994-08-03

    申请号:EP94101196.7

    申请日:1994-01-27

    发明人: Moriyama, Jiro

    IPC分类号: B41J2/045 B41J2/06 B41J2/015

    摘要: An electric field is formed between an ink jet recording head (11) and a recording medium (20) on a platen (21) so that a certain intensity of force effective in the direction orientating toward the recording medium (20) is applied to an ink droplet in the presence of the electric field. Whereby, the ejected ink droplet is prevented from being shot onto a dislocated position from a normal position.

    摘要翻译: 在压印盘(21)上的喷墨记录头(11)和记录介质(20)之间形成电场,使得在朝向记录介质(20)的方向上有效的一定强度的力施加到 在电场存在下的墨滴。 由此,防止喷射的墨滴从正常位置被喷射到错位位置。

    Surface ripple wave suppression by anti-reflection aperture configurations for acoustic ink printers
    9.
    发明公开
    Surface ripple wave suppression by anti-reflection aperture configurations for acoustic ink printers 失效
    Oberflächenwellenunterdrückungmittels antireflektierenderÖffnungskonfigurationenfürakustische Farbdrucker。

    公开(公告)号:EP0549244A1

    公开(公告)日:1993-06-30

    申请号:EP92311465.6

    申请日:1992-12-16

    申请人: XEROX CORPORATION

    发明人: Rawson, Eric G.

    IPC分类号: B41J2/045 B41J2/055

    摘要: In response to the foregoing need, the cap structures (31) that are provided by this invention for controlling the free ink surface levels (13) of acoustic ink printers (11) are characterized by having aperture configurations (42,52) that are more or less equally subdivided into "reflectively balanced" sectors that radially differ from each other by ¼ of the dominant wavelength of the surface ripple waves that are generated by the droplet ejection process (12). The ½ wavelength difference in the radii of the two generally equal reflectively balanced fractional parts of these apertures (42,52) causes the dominant frequency components of the retroreflected ripple waves to destructively interfere with each other in the critical central regions of the apertures.

    摘要翻译: 响应于上述需要,由本发明提供的用于控制声墨水打印机(11)的自由墨水表面(13)的盖结构(31)的特征在于具有更多的孔结构(42,52) 或更少等同地细分为通过液滴喷射过程(12)产生的表面波纹波的主波长的1/4的彼此径向不同的“反射平衡”扇区。 这些孔(42,52)的两个大致相等的反射平衡分数部分的半径中的1/2波长差导致回射纹波的主要频率分量在孔的关键中心区域中相互干涉 。

    Nozzleless droplet projection system
    10.
    发明公开
    Nozzleless droplet projection system 失效
    无喷嘴投影系统

    公开(公告)号:EP0493052A3

    公开(公告)日:1993-02-24

    申请号:EP91311918.6

    申请日:1991-12-23

    申请人: XEROX CORPORATION

    发明人: Sweet, Richard G.

    IPC分类号: B41J2/04 B41J2/065

    摘要: A nozzleless droplet projection system is disclosed. A thin film of fluid (26) with a constant thickness travels at a constant velocity across a tubular transducer head (16a, 16b). A smooth perimetrical surface (18) is formed between the input (22) and the output (24) sides of the transducer head (16a, 16b). An array of electro-acoustic transducers (15) submerged beneath the transducer head support surface (17) generate tone bursts (20, Figs 3 and 4) of acoustic energy which are focused by a corresponding array of acoustic lenses (19) inscribed along the length of the transducer head (16a, 16b). The constant thickness and constant velocity fluid film (26) is generated by forcing pre-regulated, pressurized fluid through a narrow slit (30) and across the smooth perimetrical surface (18) of the transducer head (16a, 16b). The fluid film (26) is maintained at the acoustic focus of the lenses (19) in order to control the resultant droplet (12) size. A pattern of droplets (12) is ejected by pulsing the appropriate electro-acoustic transducers (15) as the projection medium (14) is moved across the droplet formation apparatus at a constant velocity.