ANORDNUNG ZUM ERWÄRMEN DER TINTE IM SCHREIBKOPF EINER TINTENDRUCKEINRICHTUNG
    96.
    发明授权
    ANORDNUNG ZUM ERWÄRMEN DER TINTE IM SCHREIBKOPF EINER TINTENDRUCKEINRICHTUNG 失效
    在喷墨打印机的写入头中加热墨水的装置

    公开(公告)号:EP0479784B1

    公开(公告)日:1993-07-28

    申请号:EP90900163.8

    申请日:1989-12-04

    IPC分类号: B41J2/05

    摘要: To obtain a heating device for a laminated write head, a heating resistor (15) in the form of a heating meander is produced, in empty spaces present in the substrate, directly from one of the two electrically conductive thin films precipitated onto the basic oxide in order to form heat transducers (4) and strip conductors (5, 6). The empty spaces are obtained by ordered arrangement and grouping of the strip conductors (5, 6), in which sections of the heating resistor (15) are embedded. The heating resistor (15) is a component of a resistance bridge and functions both as a heat source and as a temperature sensor, by evaluation of its electrical resistance.

    Droplet ejecting device
    97.
    发明公开
    Droplet ejecting device 失效
    Tröpfchenausstossvorrichtung。

    公开(公告)号:EP0541294A2

    公开(公告)日:1993-05-12

    申请号:EP92309926.1

    申请日:1992-10-29

    IPC分类号: B41J2/045 B41J2/14

    摘要: A droplet ejecting device comprises a piezoelectric transducer consisting of first and second piezoelectric transducers (6, 7) polarized in the directions (56, 57) opposite to each other, the first and second piezoelectric transducers bonded to each other and having electrodes (26, 27) disposed at the inner and outer surfaces thereof. A member (36) is fitted to the piezoelectric transducer to define ink chambers, the member having an orifice (38) associated with each ink chamber. An ejection control means (28) applies an electric field to the electrode(s) associated with the predetermined ink chamber(s) so as to eject an ink droplet(s) (46) from the ink chamber(s) through the orifice(s) in a given position. As a result, the invention provides a droplet ejecting device where an ink ejecting cycle of the array as a whole is short, the print speed is high, and electrodes can be easily manufactured.

    摘要翻译: 液滴喷射装置包括由在彼此相对的方向(56,57)上极化的第一和第二压电换能器(6,7)组成的压电换能器,第一和第二压电换能器彼此结合并具有电极(26, 27)设置在其内表面和外表面。 构件(36)被安装到压电换能器以限定墨室,该构件具有与每个墨室相关联的孔口(38)。 喷射控制装置(28)将电场施加到与预定墨室相关联的电极,以便通过孔口(A)从墨室喷出墨滴(46) s)在给定的位置。 结果,本发明提供了一种液滴喷射装置,其中阵列的喷墨循环整体较短,打印速度高,并且可以容易地制造电极。

    Ink jet print head
    98.
    发明公开
    Ink jet print head 失效
    喷墨打印头

    公开(公告)号:EP0505065A3

    公开(公告)日:1993-04-14

    申请号:EP92301988.9

    申请日:1992-03-09

    发明人: Komakine, Shigeo

    IPC分类号: B41J2/045

    摘要: A piezoelectric plate (2) polarized in the direction of its thickness and a base plate (1) having a rigidity lower than that of the piezoelectric plate (2) are joined together, a plurality of parallel grooves (3) are cut through the piezoelectric plate (2) into the base plate (1) so that the grooves (3) are separated from each other by side walls (4) each consisting of an upper side wall (4a) formed of a portion of the piezoelectric plate and a lower side wall (4b) formed of a portion of the base plate (1), a top plate (10) is attached to the upper surface of the piezoelectric plate (2) so as to close the upper open ends of the grooves (3), a nozzle plate (12) provided with a plurality of ink jets (11) is attached to one end of the assembly of the base plate (1), the piezoelectric plate (2) and the top plate (10) so that the ink jets (11) correspond respectively to the grooves (3) to form pressure chambers (14), and electrodes (8) are formed by depositing a metal over the bottom surfaces of the grooves (3) and the side surfaces of the side walls (4). In straining the side walls (4) by applying a voltage across the electrodes (8) to jet the ink through the ink jet (11), the resistance of the lower side walls (4b) against the deformation of the upper side walls (4a) is relatively small, so that the upper side walls (4a) can readily be strained greatly. The piezoelectric plate (2) is formed in an optimum thickness as a function of the reciprocal of the rigidity of the base plate (1), the elastic constant of the material forming the piezoelectric plate (2) and the height of the side walls (4).

    High density ink jet printhead
    99.
    发明公开
    High density ink jet printhead 失效
    Tintenstrahldruckkopf hoher Dichte。

    公开(公告)号:EP0528647A1

    公开(公告)日:1993-02-24

    申请号:EP92307427.2

    申请日:1992-08-13

    IPC分类号: B41J2/045 B41J2/145

    摘要: An ink jet printhead (10) for a drop-on-demand type ink jet printing system. The printhead includes a base section (12) having a series of generally parallel spaced projections (30) extending longitudinally therealong, a series of intermediate sections (32) conductively mounted on a top side of a corresponding one of the series of base section projections (30) and a top section (16) conductively mounted to a top side of each of the series of intermediate sections (32).

    摘要翻译: 一种用于按需喷墨打印系统的喷墨打印头(10)。 打印头包括基部(12),该基部具有一系列沿着其纵向延伸的大致平行间隔开的​​突起(30),一系列中间部分(32)导电地安装在一系列基部突起中的相应一个 30)和导电地安装到每个所述一系列中间部分(32)的顶侧的顶部部分(16)。

    Thermal ink jet printhead having an increased drop velocity
    100.
    发明公开
    Thermal ink jet printhead having an increased drop velocity 失效
    热喷枪喷嘴具有增加的降落速度

    公开(公告)号:EP0493039A3

    公开(公告)日:1993-02-24

    申请号:EP91311898.0

    申请日:1991-12-20

    申请人: XEROX CORPORATION

    发明人: Torpey, Peter A.

    IPC分类号: B41J2/05

    摘要: A thermal ink jet printhead for ejecting and propelling ink droplets on demand is disclosed. The ink droplets (18) travel along a flight path from orifices (27) in the printhead toward a recording medium such as paper by momentarily heating the ink (60). The printhead includes at least one elongated channel that forms a straight ink flow path therethrough. The channel has an orifice (27) at one end and an inlet at the other end for communicating with an ink reservoir. A heating element (34) is disposed inside the channel and it has a surface that contacts the ink (60). A constrictor is placed in the channel near the orifice (27) so that the velocity of the ink flow through the orifice (27) is increased.