Piezoelectric inkjet printhead having a unidirectional shutter

    公开(公告)号:US20060092236A1

    公开(公告)日:2006-05-04

    申请号:US11239104

    申请日:2005-09-30

    IPC分类号: B41J2/045

    摘要: A piezoelectric inkjet printhead including a reversible shutter disposed in an ink flow path is disclosed. The inkjet printhead may includes a plurality of ink pressure chambers, a plurality of piezoelectric actuators to provide the plurality of ink pressure chambers with a driving force for ink ejection, an ink manifold to supply the plurality of pressure chambers, a plurality of restrictors disposed in the ink flow path between the manifold and the plurality of pressure chambers, a plurality of ink ejecting nozzles coupled to the plurality of pressure chambers, and a plurality of unidirectional shutters. The shutters may be disposed at respective outlets of the plurality of restrictors and may be adapted to open the restrictor when ink is supplied from the restrictor to the pressure chamber and close the restrictor and restrict or prevent the backflow of ink when ink is ejected from the pressure chamber through the nozzle.

    Piezoelectric inkjet printhead having a unidirectional shutter
    2.
    发明授权
    Piezoelectric inkjet printhead having a unidirectional shutter 失效
    具有单向快门的压电喷墨打印头

    公开(公告)号:US07549737B2

    公开(公告)日:2009-06-23

    申请号:US11239104

    申请日:2005-09-30

    IPC分类号: B41J2/045

    摘要: A piezoelectric inkjet printhead including a reversible shutter disposed in an ink flow path is disclosed. The inkjet printhead may includes a plurality of ink pressure chambers, a plurality of piezoelectric actuators to provide the plurality of ink pressure chambers with a driving force for ink ejection, an ink manifold to supply the plurality of pressure chambers, a plurality of restrictors disposed in the ink flow path between the manifold and the plurality of pressure chambers, a plurality of ink ejecting nozzles coupled to the plurality of pressure chambers, and a plurality of unidirectional shutters. The shutters may be disposed at respective outlets of the plurality of restrictors and may be adapted to open the restrictor when ink is supplied from the restrictor to the pressure chamber and close the restrictor and restrict or prevent the backflow of ink when ink is ejected from the pressure chamber through the nozzle.

    摘要翻译: 公开了一种包括设置在油墨流路中的可逆快门的压电喷墨打印头。 喷墨打印头可以包括多个墨水压力室,多个压电致动器,用于为多个墨水压力室提供用于墨水喷射的驱动力,用于供应多个压力腔的墨水歧管,多个限制器 歧管和多个压力室之间的油墨流动路径,联接到多个压力室的多个喷墨喷嘴和多个单向快门。 快门可以设置在多个限制器的相应出口处,并且当油墨从限流器供应到压力室并关闭限制器时可以适于打开限制器,并且当油墨从油墨喷出时限制或防止墨回流 压力室通过喷嘴。

    Inkjet printhead having a cantilever actuator
    5.
    发明授权
    Inkjet printhead having a cantilever actuator 失效
    喷墨打印头具有悬臂致动器

    公开(公告)号:US07494208B2

    公开(公告)日:2009-02-24

    申请号:US11260260

    申请日:2005-10-28

    IPC分类号: B41J2/05 B41J2/045

    摘要: An inkjet printhead having a cantilever actuator, the inkjet printhead including a plurality of ink chambers containing ink to be ejected; a manifold containing ink to be supplied to the plurality of ink chambers; a plurality of restrictors supplying ink to the plurality of ink chambers from the manifold; a plurality of nozzles ejecting ink from the plurality of ink chambers; and a plurality of cantilever actuators each installed in each of the plurality of ink chambers and having one fixed end and the other deflectable end, such that pressure for ejection of ink is applied due to the deflection of the other end of the cantilever actuator to the ink inside the ink chamber. The cantilever actuator may be made of a bimorph element, eject ink through the nozzle from the ink chamber, and also prevent backflow of ink from the ink chamber to the restrictor by virtue of the deflection of the other end thereof. Since the cantilever actuator can have a greater displacement and can prevent backflow of ink, the size of the ink chamber needed to eject ink droplets of uniform volume can be reduced, and thus the number of channels per inch (CPI) of the inkjet printhead can be increased.

    摘要翻译: 一种具有悬臂致动器的喷墨打印头,所述喷墨打印头包括多个墨室,所述多个墨室容纳要喷射的墨; 含有供给多个墨水室的墨水的歧管; 多个限制器,从多个歧管向多个墨水室供墨; 多个喷嘴从所述多个墨室喷射墨; 以及多个悬臂致动器,每个安装在所述多个墨室中的每一个中并且具有一个固定端和另一个可偏转端,使得由于所述悬臂致动器的另一端的偏转而施加用于喷射墨的压力 油墨室内的墨水。 悬臂致动器可以由双压电晶片元件制成,通过喷嘴从墨室喷射墨水,并且还防止墨水由于其另一端的偏转而从墨水室回流到限制器。 由于悬臂致动器可以具有更大的位移并且可以防止墨的回流,所以可以减少喷射具有均匀体积的墨滴所需的墨室的尺寸,因此喷墨打印头的每英寸通道数(CPI)可以 增加。

    Inkjet printhead having a cantilever actuator

    公开(公告)号:US20060092237A1

    公开(公告)日:2006-05-04

    申请号:US11260260

    申请日:2005-10-28

    IPC分类号: B41J2/04 B41J2/045

    摘要: An inkjet printhead having a cantilever actuator, the inkjet printhead including a plurality of ink chambers containing ink to be ejected; a manifold containing ink to be supplied to the plurality of ink chambers; a plurality of restrictors supplying ink to the plurality of ink chambers from the manifold; a plurality of nozzles ejecting ink from the plurality of ink chambers; and a plurality of cantilever actuators each installed in each of the plurality of ink chambers and having one fixed end and the other deflectable end, such that pressure for ejection of ink is applied due to the deflection of the other end of the cantilever actuator to the ink inside the ink chamber. The cantilever actuator may be made of a bimorph element, eject ink through the nozzle from the ink chamber, and also prevent backflow of ink from the ink chamber to the restrictor by virtue of the deflection of the other end thereof. Since the cantilever actuator can have a greater displacement and can prevent backflow of ink, the size of the ink chamber needed to eject ink droplets of uniform volume can be reduced, and thus the number of channels per inch (CPI) of the inkjet printhead can be increased.

    Electrostatic latent image forming medium using optical shutter array and image forming apparatus having the same
    7.
    发明授权
    Electrostatic latent image forming medium using optical shutter array and image forming apparatus having the same 有权
    使用光学快门阵列的静电潜像形成介质和具有该静电潜像形成介质的成像设备

    公开(公告)号:US07417653B2

    公开(公告)日:2008-08-26

    申请号:US11251805

    申请日:2005-10-18

    IPC分类号: G03G15/043

    摘要: An image forming apparatus includes an electrostatic latent image forming medium, a charge unit charging the surface of the electrostatic latent image forming medium with a predetermined potential, a toner supply unit (TSU) supplying toner to an electrostatic latent image formed on the surface of the electrostatic latent image forming medium to develop the electrostatic latent image into a toner image, and a transfer unit transferring the toner image to a print medium, the electrostatic latent image forming medium including a transparent frame member, a light source inside the frame member, an optical shutter array including a plurality of optical shutters, and a photoconductive layer on which the electrostatic latent image is formed using light transmitted through the optical shutter array. A diffuser may surround the light source to diffuse light to maintain the intensity of light reaching the optical shutters at a uniform level.

    摘要翻译: 图像形成装置包括静电潜像形成介质,将静电潜像形成介质的表面充电到预定电位的充电单元,将调色剂供给到形成在静电潜像形成介质的表面上的静电潜像的调色剂供给单元(TSU) 静电潜像形成介质,将静电潜像显影成调色剂图像;以及转印单元,将调色剂图像转印到打印介质上,所述静电潜像形成介质包括透明框架构件,框架构件内部的光源, 包括多个光学快门的光学快门阵列以及使用透过光学快门阵列的光形成静电潜像的光电导层。 扩散器可以围绕光源以漫射光以保持到达光学百叶窗的光的强度处于均匀的水平。

    Electrostatic latent image forming medium using optical shutter array and image forming apparatus having the same
    8.
    发明申请
    Electrostatic latent image forming medium using optical shutter array and image forming apparatus having the same 有权
    使用光学快门阵列的静电潜像形成介质和具有该静电潜像形成介质的成像设备

    公开(公告)号:US20060082634A1

    公开(公告)日:2006-04-20

    申请号:US11251805

    申请日:2005-10-18

    IPC分类号: B41J2/385

    摘要: An image forming apparatus includes an electrostatic latent image forming medium, a charge unit charging the surface of the electrostatic latent image forming medium with a predetermined potential, a toner supply unit (TSU) supplying toner to an electrostatic latent image formed on the surface of the electrostatic latent image forming medium to develop the electrostatic latent image into a toner image, and a transfer unit transferring the toner image to a print medium, the electrostatic latent image forming medium including a transparent frame member, a light source inside the frame member, an optical shutter array including a plurality of optical shutters, and a photoconductive layer on which the electrostatic latent image is formed using light transmitted through the optical shutter array. A diffuser may surround the light source to diffuse light to maintain the intensity of light reaching the optical shutters at a uniform level.

    摘要翻译: 图像形成装置包括静电潜像形成介质,将静电潜像形成介质的表面充电到预定电位的充电单元,将调色剂供给到形成在静电潜像形成介质的表面上的静电潜像的调色剂供给单元(TSU) 静电潜像形成介质,将静电潜像显影成调色剂图像;以及转印单元,将调色剂图像转印到打印介质上,所述静电潜像形成介质包括透明框架构件,框架构件内部的光源, 包括多个光学快门的光学快门阵列以及使用透过光学快门阵列的光形成静电潜像的光电导层。 扩散器可以围绕光源以漫射光以保持到达光学百叶窗的光的强度处于均匀的水平。