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    • 8. 发明授权
    • Developing device, process cartridge, and image forming apparatus that house a developing agent for forming an image
    • 显影装置,处理盒和容纳用于形成图像的显影剂的成像装置
    • US08045900B2
    • 2011-10-25
    • US12196604
    • 2008-08-22
    • Tatsuya KuboYoshitaka FujinumaSusumu Tateyama
    • Tatsuya KuboYoshitaka FujinumaSusumu Tateyama
    • G03G15/08
    • G03G15/0844G03G2215/0607G03G2215/0609G03G2215/0827G03G2215/0838
    • A developing device, process cartridge, and image forming apparatus, have transport members with screw and shaft portions, transporting developer within the device in a longitudinal direction of a circulation path. A supply supplies new carrier to the device. A discharge aperture in a transport path wall of one transport member discharges developer outside the circulation path, when a surface of the developer transported by the one transport member exceeds a predetermined height. A bias path aperture in the transport path wall upstream of the discharge aperture has a bottom at a higher level than a bottom of the discharge aperture, and diverts developer at a level higher than the bottom of the discharge aperture to another transport member. An area in the longitudinal direction of the one transport member has no screw portion, and the discharge aperture is disposed opposite the area and has a length smaller than the area.
    • 显影装置,处理盒和图像形成装置具有带有螺杆和轴部分的输送部件,沿着循环路径的纵向方向将显影剂输送到装置内。 电源为设备提供新的载体。 当由一个输送构件输送的显影剂的表面超过预定高度时,一个输送构件的输送路径壁中的排出孔将循环路径外的显影剂排出。 在排放孔上游的输送路径壁中的偏置通道孔具有比放电孔的底部高的水平的底部,并将显影剂转移到高于排放孔的底部的水平面到另一传送构件。 一个传送部件的纵向方向上的区域没有螺纹部分,并且排出孔与该区域相对设置并且具有小于该区域的长度。
    • 9. 发明申请
    • DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
    • 开发设备,过程盒和图像形成装置
    • US20090097878A1
    • 2009-04-16
    • US12196604
    • 2008-08-22
    • Tatsuya KUBOYoshitaka FujinumaSusumu Tateyama
    • Tatsuya KUBOYoshitaka FujinumaSusumu Tateyama
    • G03G21/18G03G15/08
    • G03G15/0844G03G2215/0607G03G2215/0609G03G2215/0827G03G2215/0838
    • A premixed developing system developing device, process cartridge, and image forming apparatus, in which a developing agent thrown up by a transport member is not discharged from a discharge aperture, variation in the quantity of the developing agent discharged to the outside does not occur, and the image quality of images output is stable. A discharge aperture is formed in the wall of a transport path of a transport member to discharge the developing agent to the outside when the surface of the developing agent exceeds a predetermined level. The transport member is provided with an area, in a part in the longitudinal direction, in which a screw portion is not formed. The discharge aperture is disposed opposite to the area, where the screw portion is not formed on the transport member, and is formed such that the length of the discharge aperture is smaller than the length of the area in the longitudinal direction.
    • 预先混合的显影系统显影装置,处理盒和图像形成装置,其中由输送构件投下的显影剂不从排出孔排出,不会发生排出到外部的显影剂的量的变化, 图像输出的图像质量稳定。 当输送构件的输送路径的壁中形成有排出孔,以在显影剂的表面超过预定水平时将显影剂排出到外部。 传送部件在其长度方向上设有未形成螺纹部的区域。 排出口与未在输送构件上形成螺纹部的区域相对设置,并且形成为使得排出孔的长度小于纵向方向上的区域的长度。