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    Image forming device and image forming method
    3.
    发明授权
    Image forming device and image forming method 失效
    图像形成装置和图像形成方法

    公开(公告)号：US06047145A

    公开(公告)日：2000-04-04

    申请号：US984991

    申请日：1997-12-04

    申请人： Satoshi Shigezaki ,  Taichi Yamada ,  Yutaka Agawa ,  Toshio Masubuchi

    发明人： Satoshi Shigezaki ,  Taichi Yamada ,  Yutaka Agawa ,  Toshio Masubuchi

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0216 ,  G03G2215/021

    摘要： An image forming apparatus of the present invention includes at least an image carrier and a contact type charging device. The image forming apparatus further includes a control control device that controls the contact type charging device so as to apply DC voltage having the same polarity as the charging polarity of the image carrier to the image carrier at the same time that or before rotation of the image carrier begins and successively applies a voltage in which AC voltage is superimposed on the DC voltage at the same time that or after the DC voltage is applied and at the latest after the rotation of the image carrier begins. Therefore, according to the present invention, electrostatic memory in the image carrier is prevented, so that the occurrence of black stripe or the like corresponding to a contact point of the contact type charging device is prevented, thereby enabling formation of high quality images.

    摘要翻译： 本发明的图像形成装置至少包括图像载体和接触型充电装置。 图像形成装置还包括控制控制装置，其控制接触型充电装置，以便在图像旋转之前或之后同时向图像载体施加具有与图像载体的充电极性相同极性的直流电压 载体开始，并且在施加DC电压之后或之后的同时施加交流电压叠加在DC电压上的电压，并且在图像载体的旋转开始之后最后施加电压。 因此，根据本发明，防止了图像载体中的静电存储器，从而防止了与接触型充电装置的接触点相对应的黑条等的出现，从而形成高质量的图像。

    Developing unit and image-forming apparatus
    6.
    发明授权
    Developing unit and image-forming apparatus 有权
    显影单元和成像设备

    公开(公告)号：US08594536B2

    公开(公告)日：2013-11-26

    申请号：US13149377

    申请日：2011-05-31

    申请人： Shinichi Kuramoto ,  Taichi Yamada ,  Masahiro Uchida ,  Mutsumi Kikuchi

    发明人： Shinichi Kuramoto ,  Taichi Yamada ,  Masahiro Uchida ,  Mutsumi Kikuchi

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0822 ,  G03G2215/0822 ,  G03G2215/0838

    摘要： A developing unit includes: a developing roller; a first conveying member provided in a first container, having a first shaft and a spiral blade, that agitates and conveys developer; a second conveying member provided in a second container connected to the first container via a hole, having a second shaft and a spiral blade, that agitates and conveys the developer; and a supplying member having a third shaft and a paddle blade, that supplies the developer conveyed by the first or the second conveying member to a developing roller, wherein: at least one of the first and second shafts includes a first portion that faces the hole and a second portion that does not face the hole; and a diameter of the at least one of the first and second shafts in at least a part of the first portion is smaller than a diameter in the second portion.

    摘要翻译： 显影单元包括：显影辊; 设置在第一容器中的第一输送构件，具有搅动和输送显影剂的第一轴和螺旋叶片; 第二输送构件，设置在经由孔连接到第一容器的第二容器中，第二容器具有搅动和输送显影剂的第二轴和螺旋叶片; 以及具有第三轴和桨叶的供给构件，其将由第一或第二输送构件输送的显影剂供给到显影辊，其中：第一和第二轴中的至少一个包括面向孔的第一部分 和不面向孔的第二部分; 并且所述第一部分的至少一部分中的所述第一和第二轴中的至少一个的直径小于所述第二部分中的直径。

    Image forming apparatus
    7.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US07970303B2

    公开(公告)日：2011-06-28

    申请号：US12511555

    申请日：2009-07-29

    申请人： Taichi Yamada

    发明人： Taichi Yamada

    IPC分类号： G03G15/02 ,  G03G15/00

    CPC分类号： G03G21/0011

    摘要： An image forming apparatus includes: an image bearing body on which surface a solid lubricant is supplied, forming and bearing an image on the surface; a charging member to which a voltage is applied, being in contact with the image bearing body to impart a charge; a voltage applying section that applies the voltage to the charging member, capable of switching the voltage between superimposed voltage on which DC voltage and AC voltage are superimposed and non-superimposed voltage including only DC voltage; an image forming section that forms a toner image; a transfer device that transfers the formed toner image to a transferring body; a cleaning member that contacts the image bearing body to scrape unnecessary substance from the surface; and a voltage switching section that switches the voltage applied to the charging member between the superimposed voltage and the non-superimposed voltage according to an amount of the solid lubricant.

    摘要翻译： 图像形成装置包括：图像承载体，在其上供给固体润滑剂的表面，在表面上形成并承载图像; 施加电压的充电构件与图像承载体接触以进行充电; 电压施加部，其向所述充电部件施加电压，能够切换叠加有直流电压和交流电压的叠加电压之间的电压和仅包括直流电压的非叠加电压; 形成调色剂图像的图像形成部; 将形成的调色剂图像转印到转印体的转印装置; 清洁构件，其与图像承载体接触以从表面刮擦不必要的物质; 以及电压切换部，其根据固体润滑剂的量，在叠加电压和非叠加电压之间切换施加到充电部件的电压。