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    • 9. 发明授权
    • Piezoelectric inkjet printhead having a unidirectional shutter
    • 具有单向快门的压电喷墨打印头
    • US07549737B2
    • 2009-06-23
    • US11239104
    • 2005-09-30
    • Kye-si KwonSeong-jin KimSeung-joo ShinGee-young SungKeon KukMi-jeong Song
    • Kye-si KwonSeong-jin KimSeung-joo ShinGee-young SungKeon KukMi-jeong Song
    • B41J2/045
    • B41J2/14233B41J2/055B41J2002/14193
    • 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.
    • 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。
    • 10. 发明授权
    • Electrostatic latent image forming medium using optical shutter array and image forming apparatus having the same
    • 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
    • US07417653B2
    • 2008-08-26
    • US11251805
    • 2005-10-18
    • Gee-young SungSeong-jin KimSeung-joo ShinKye-si Kwon
    • Gee-young SungSeong-jin KimSeung-joo ShinKye-si Kwon
    • G03G15/043
    • G03G15/751G03G15/0435G03G2215/017G03G2215/0497
    • 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.
    • 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。