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    • 52. 发明授权
    • Developing device in image-forming device
    • 成像装置中的显影装置
    • US07580657B2
    • 2009-08-25
    • US11493856
    • 2006-07-27
    • Susumu TateyamaYoshitaka FujinumaTsutomu NakagawaMasayoshi Nakayama
    • Susumu TateyamaYoshitaka FujinumaTsutomu NakagawaMasayoshi Nakayama
    • G03G15/08
    • G03G15/0893G03G15/0877G03G2215/0813G03G2215/0822G03G2215/0838G03G2215/0844
    • A developing device includes first-third sections, a developing roller, a partitioning wall and a toner concentration detector. The first-third sections have first-third screw augers respectively. The partitioning wall isolates the third section from the first section and the second section. A supply opening is formed in a portion of the partitioning wall opposing the first section. A toner concentration detector is disposed in the third section. The first screw auger conveys developer including toner to the developing roller, into the third section via the supply opening, and into the second section. The second screw auger conveys developer accommodated in the second section into the third section. The third screw auger conveys developer accommodated in the third section into the first section. Toner is replenished into the third section based on a detection result by the toner concentration detector.
    • 显影装置包括第一至第三部分,显影辊,分隔壁和调色剂浓度检测器。 第一部分第三部分分别具有第三螺旋钻。 分隔壁将第三部分与第一部分和第二部分隔离。 供给开口形成在与第一部分相对的分隔壁的一部分中。 调色剂浓度检测器设置在第三部分中。 第一螺旋推送器将包括调色剂的显影剂通过供给口传送到显影辊,并进入第二部分。 第二螺旋推送器将容纳在第二部分中的显影器输送到第三部分。 第三螺旋推送器将容纳在第三部分中的显影器输送到第一部分中。 基于调色剂浓度检测器的检测结果,将调色剂补充到第三部分中。
    • 53. 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
    • US20080213006A1
    • 2008-09-04
    • US12036640
    • 2008-02-25
    • Masayoshi NAKAYAMAYoshitaka FujinumaSusumu TateyamaTatsuya Kubo
    • Masayoshi NAKAYAMAYoshitaka FujinumaSusumu TateyamaTatsuya Kubo
    • G03G15/09
    • G03G15/0942
    • A developing device is disclosed. The developing device includes a developing roller disposed to face an image carrier and a toner carrier capturing roller disposed to face the developing roller for capturing toner carriers adhered onto the image carrier. The developing roller generates a magnetic pole at a side facing the toner carrier capturing roller. A first virtual line, which connects a rotational center of the developing roller to a rotational center of the toner carrier capturing roller, passes through a region between a position where a magnetic flux density of the magnetic pole in the normal line direction is minimum on the developing roller at the upstream side in the rotational direction of the developing roller and a position where the magnetic flux density of the magnetic pole in the normal line direction is maximum on the developing roller.
    • 公开了一种显影装置。 显影装置包括设置成面对图像载体的显影辊和设置成面对显影辊的调色剂载体捕获辊,用于捕获粘附到图像载体上的调色剂载体。 显影辊在面向调色剂载体捕获辊的一侧产生磁极。 将显影辊的旋转中心连接到调色剂承载器捕获辊的旋转中心的第一虚拟线穿过在正方向上的磁极的磁通密度最小的位置之间的区域 在显影辊的旋转方向的上游侧的显影辊和在显影辊上的法线方向的磁极的磁通密度最大的位置。
    • 54. 发明申请
    • Developing device in image-forming device
    • 成像装置中的显影装置
    • US20070025773A1
    • 2007-02-01
    • US11493856
    • 2006-07-27
    • Susumu TateyamaYoshitaka FujinumaTsutomu NakagawaMasayoshi Nakayama
    • Susumu TateyamaYoshitaka FujinumaTsutomu NakagawaMasayoshi Nakayama
    • G03G15/08
    • G03G15/0893G03G15/0877G03G2215/0813G03G2215/0822G03G2215/0838G03G2215/0844
    • A developing device includes first-third sections, a developing roller, a partitioning wall and a toner concentration detector. The first-third sections have first-third screw augers respectively. The partitioning wall isolates the third section from the first section and the second section. A supply opening is formed in a portion of the partitioning wall opposing the first section. A toner concentration detector is disposed in the third section. The first screw auger conveys developer including toner to the developing roller, into the third section via the supply opening, and into the second section. The second screw auger conveys developer accommodated in the second section into the third section. The third screw auger conveys developer accommodated in the third section into the first section. Toner is replenished into the third section based on a detection result by the toner concentration detector.
    • 显影装置包括第一至第三部分,显影辊,分隔壁和调色剂浓度检测器。 第一部分第三部分分别具有第三螺旋钻。 分隔壁将第三部分与第一部分和第二部分隔离。 供给开口形成在与第一部分相对的分隔壁的一部分中。 调色剂浓度检测器设置在第三部分中。 第一螺旋推送器将包括调色剂的显影剂通过供给口传送到显影辊,并进入第二部分。 第二螺旋推送器将容纳在第二部分中的显影器输送到第三部分。 第三螺旋推送器将容纳在第三部分中的显影器输送到第一部分中。 基于调色剂浓度检测器的检测结果,将调色剂补充到第三部分中。
    • 55. 发明授权
    • Color image forming apparatus
    • 彩色图像形成装置
    • US07106983B2
    • 2006-09-12
    • US10916618
    • 2004-08-12
    • Masayoshi NakayamaTeruaki MitsuyaHisao OkadaKeisuke KubotaTakashi Rokutanda
    • Masayoshi NakayamaTeruaki MitsuyaHisao OkadaKeisuke KubotaTakashi Rokutanda
    • G03G15/00
    • G03G15/0121G03G15/065G03G2215/0634
    • A color image forming apparatus includes a developing unit to which a developing bias with an AC component superposed is applied, wherein the DC voltage of the developing bias is adjusted to set the detected density of a solid image at a specified value, the light amount of radiation for exposing an image area having a width of a few dots adjacent to the white paper is adjusted to set the detected density of an image developed under a peripheral electric field at a specified value, and the gradation density curve is regulated by alternately adjusting the DC voltage, the light amount of radiation for exposing the image area having a width of a few dots adjacent to the white paper, and the amplitude of the AC component until the detected density of a mesh point image having an area ratio from 60 to 80% falls within a specified range.
    • 彩色图像形成装置包括:显影单元,施加具有叠加的交流分量的显影偏压,其中调整显影偏压的直流电压,以将检测到的实心图像的浓度设定在规定值,光量 调整用于曝光具有与白纸相邻的几个点的宽度的图像区域的辐射,以将在周围电场下显影的图像的检测浓度设定为规定值,并且通过交替调整色调浓度曲线来调节灰度浓度曲线 DC电压,用于曝光具有与白纸相邻的几个点的宽度的图像区域的辐射的光量以及AC分量的振幅直到具有60至80的面积比的网格图像的检测密度 %落在指定范围内。
    • 60. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20160004192A1
    • 2016-01-07
    • US14740992
    • 2015-06-16
    • Wakana ItohHiroyuki KuniiMasayoshi NakayamaKazuaki KamiharaTakuma Higa
    • Wakana ItohHiroyuki KuniiMasayoshi NakayamaKazuaki KamiharaTakuma Higa
    • G03G15/01
    • G03G15/162
    • An image forming apparatus has a system speed of from 400 to 2,000 mm/sec and includes an endless intermediate transfer belt to transfer a sheet-shaped medium bearing an image formed of a toner. The intermediate transfer belt includes a first layer including at least a substrate; a second layer; and an electric resistance controlling material and has a surface resistivity of from 1×108 to 1×1013 Ω/□, a volume resistivity of from 1×106 to 1×1012 Ω·cm, and a surface roughness not greater than 50 μm. The toner includes a mother particle which is surface-treated with a fluidizer, comprising a charge controlling agent and at least two external additives which are inorganic particulate materials and particulate polymers formed of polymeric particulate materials or thermosetting resins adhering to the surface of the mother particle.
    • 图像形成装置具有400至2000mm /秒的系统速度,并且包括环形中间转印带,用于转印承载由调色剂形成的图像的片状介质。 中间转印带包括至少包括基底的第一层; 第二层; 和电阻控制材料,其表面电阻率为1×10 8〜1×10 13Ω·cm,□体积电阻率为1×10 6〜1×10 12Ω·cm·cm,表面粗糙度为50以下 μm。 调色剂包括用流化器进行表面处理的母粒,其包含电荷控制剂和至少两种外部添加剂,其为无机颗粒材料和由聚合物颗粒材料或热固性树脂形成的颗粒聚合物,所述聚合物颗粒材料或附着于母粒子表面的热固性树脂 。