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11. 发明授权

US07742727B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US07742727B2
公开(公告)日：2010-06-22
申请号：US12050219
申请日：2008-03-18
申请人： Shoichi Sakata , Takahisa Nakaue , Toyotsune Inoue , Akihiro Watanabe , Masashi Fujishima , Yukihiro Mori
发明人： Shoichi Sakata , Takahisa Nakaue , Toyotsune Inoue , Akihiro Watanabe , Masashi Fujishima , Yukihiro Mori
IPC分类号： G03G15/09
CPC分类号： G03G15/0928 , G03G15/0907
摘要： An image forming apparatus has a photoconductive member on which a latent image is to be formed, a developing roller for developing the latent image on the photoconductive member by a first bias. A magnetic roller forms a magnetic brush thereon with a two-component developer and forms a thin toner layer on the developing roller by a second bias. The developing roller is aluminum with a surface treated for high resistance. The thickness (T) of the toner layer and the duty ratio (D1) of the first alternating-current bias satisfy relationships of the following equations for calculating the duty ratio (D1) using an application period of a voltage in a direction to transfer the toner from the developing roller towards the photoconductive member as a positive period: 7 μm≦T≦13 μm, and 35%≦D1≦70%.
摘要翻译：图像形成装置具有要在其上形成潜像的感光体，用于通过第一偏压在感光体上显影潜像的显影辊。磁性辊在其上用双组分显影剂形成磁刷，并通过第二偏压在显影辊上形成薄的调色剂层。显影辊是具有高电阻表面处理的铝。调色剂层的厚度（T）和第一交流偏置的占空比（D1）满足用于计算占空比（D1）的以下等式的关系，即使用转印方向上的电压的施加周期调色剂从显影辊朝向感光体的正周期：7μm＆amp; NlE; T＆nlE;13μm和35％＆amp; D1; D1＆nlE; 70％。

12. 发明申请

US20080292365A1 IMAGE FORMING APPARATUS AND DEVELOPING DEVICE 审中-公开
标题翻译：图像形成装置和开发装置
公开(公告)号：US20080292365A1
公开(公告)日：2008-11-27
申请号：US12123553
申请日：2008-05-20
申请人： Masashi Fujishima , Shoichi Sakata , Takahisa Nakaue , Yukihiro Mori
发明人： Masashi Fujishima , Shoichi Sakata , Takahisa Nakaue , Yukihiro Mori
IPC分类号： G03G15/08
CPC分类号： G03G15/0808
摘要： An image forming apparatus is characterized in that an absolute value of a difference between a first coefficient of variation in a number distribution of the particle diameter of a toner carried on a developing roller and a second coefficient of variation in a number distribution of the particle diameter of a toner in a two-component developer carried on the magnetic roller is within 5% and an absolute value of a difference between a third coefficient of variation in a number distribution of the particle diameter of a toner of a toner image developed on the outer surface of an image bearing member and the second coefficient of variation is within 6%. With such an image forming apparatus, high-quality images can be stably formed over a long term.
摘要翻译：图像形成装置的特征在于，显影辊承载的调色剂的粒径的数量分布的第一变异系数与粒径的数量分布的第二变异系数之间的差的绝对值承载在磁性辊上的双组分显影剂中的调色剂的绝对值在5％以内，并且在外部显影的调色剂图像的调色剂的粒径的数量分布的第三变异系数之间的差异的绝对值图像承载部件的表面和第二变异系数在6％以内。利用这种图像形成装置，可以长期稳定地形成高质量的图像。

13. 发明授权

US07773921B2 Image forming apparatus with toner collecting roller 有权
标题翻译：具有调色剂收集辊的图像形成装置
公开(公告)号：US07773921B2
公开(公告)日：2010-08-10
申请号：US12019744
申请日：2008-01-25
申请人： Masashi Fujishima , Kiyotaka Kobayashi , Yuki Matsui , Yukihiro Mori , Sayo Uemura , Akihiro Watanabe
发明人： Masashi Fujishima , Kiyotaka Kobayashi , Yuki Matsui , Yukihiro Mori , Sayo Uemura , Akihiro Watanabe
IPC分类号： G03G15/09
CPC分类号： G03G15/0815 , G03G2215/0607
摘要： An image forming apparatus includes a latent image carrying member, a two-component developer carrying member holding on an outer surface a developer containing carrier beads and toner particles, the two-component developer carrying member having a first magnetic element mounted therein, a toner carrying member carrying a thin toner layer on an outer surface, a toner collecting roller for collecting the toner particles scattered and suspended in the vicinity of the two-component developer carrying member and the toner carrying member, the toner collecting roller having a second magnetic element mounted therein, and a housing accommodating the two-component developer carrying member, the toner carrying member and the toner collecting roller. The toner collecting roller is located face to face with the two-component developer carrying member with the first and second magnetic elements disposed to face each other with oppositely directed polarities.
摘要翻译：图像形成装置包括潜像承载构件，保持在外表面上的包含载体珠和调色剂颗粒的显影剂的双组分显影剂承载构件，所述双组分显影剂承载构件具有安装在其中的第一磁性元件，载体在外表面上承载薄调色剂层的构件，用于收集散布并悬浮在双组分显影剂承载构件附近的调色剂颗粒的调色剂收集辊和调色剂承载构件，调色剂收集辊具有安装的第二磁性元件和容纳双组分显影剂承载构件的壳体，调色剂承载构件和调色剂收集辊。调色剂收集辊与双组分显影剂承载构件面对面地定位，其中第一和第二磁性元件被设置为具有相反方向的极性彼此面对。

14. 发明申请

US20090154962A1 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：开发设备和图像形成装置
公开(公告)号：US20090154962A1
公开(公告)日：2009-06-18
申请号：US12331692
申请日：2008-12-10
申请人： Asami Kotera , Hiroyuki Hamakawa , Akihiro Watanabe , Masashi Fujishima , Hiroshi Yamazaki , Sayo Uemura
发明人： Asami Kotera , Hiroyuki Hamakawa , Akihiro Watanabe , Masashi Fujishima , Hiroshi Yamazaki , Sayo Uemura
IPC分类号： G03G15/09
CPC分类号： G03G15/0928 , G03G2215/0861
摘要： A developing device visualizing an electrostatic latent image previously formed on the surface of an image carrier as toner image, comprising: a developing roller placed at a position facing the image carrier, carrying a toner on the surface thereof, conveying the toner and flying the conveyed toner onto the surface of the image carrier; and a resin layer coated on the surface of the developing roller, wherein the absolute value of the difference in charge between the toners in the upper and lower layers of the toner layer formed on the developing roller as the toner carried on the developing roller is 6 μC/g or less.
摘要翻译：一种将预先形成在图像载体的表面上的静电潜像可视化的显影装置作为调色剂图像，包括：显影辊，其设置在面向图像载体的位置，在其表面上承载调色剂，输送调色剂并使传送的调色剂到图像载体的表面上; 以及涂覆在显影辊表面上的树脂层，其中在显影辊上承载的调色剂上形成在显影辊上的调色剂层的上层和下层中的调色剂之间的电荷差绝对值为6 muC / g以下。

15. 发明申请

US20080206661A1 Image forming apparatus and image forming method 有权
标题翻译：图像形成装置及图像形成方法
公开(公告)号：US20080206661A1
公开(公告)日：2008-08-28
申请号：US12068794
申请日：2008-02-12
申请人： Masashi Fujishima , Akihiro Watanabe , Sayo Uemura , Yukihiro Mori
发明人： Masashi Fujishima , Akihiro Watanabe , Sayo Uemura , Yukihiro Mori
IPC分类号： G03G13/04 , G03G15/06
CPC分类号： G03G15/0907 , G03G15/0808
摘要： An image forming apparatus having a touchdown-development type developing apparatus, in which a toner collecting roller that collects scattered toner suspended in the vicinity of a toner holding body and a two-component developer holding body is arranged on the downstream side in a rotational direction of the two-component developer holding body from a closest position of the two-component developer holding body and the toner holding body, and between the two-component developer holding body and the housing wall, and further, bias means that applies a bias voltage for collecting the scattered toner to the toner collecting roller, and image density sensing means for sensing a density of a toner image developed on the electrostatic latent image holding body surface or a toner image on a transfer body onto which the toner image developed on the electrostatic latent image holding body surface is transferred to control the bias voltage are provided.
摘要翻译：具有触地显影型显影装置的图像形成装置，其中收集悬浮在调色剂保持体附近的散射调色剂的调色剂收集辊和双组分显影剂保持体设置在旋转方向的下游侧从双组分显影剂保持体和调色剂保持体的最接近的位置以及双组分显影剂保持体和壳体壁之间的双组分显影剂保持体的偏压装置，以及施加偏压用于将分散的调色剂收集到调色剂收集辊;以及图像浓度检测装置，用于感测在静电潜像保持体表面上显影的调色剂图像的浓度或调色剂图像在静电上显影的转印体上的调色剂图像转印潜像保持体表面以控制偏压。

16. 发明授权

US08682228B2 Developer apparatus and image forming apparatus comprising the same 有权
标题翻译：显影装置及其成像装置
公开(公告)号：US08682228B2
公开(公告)日：2014-03-25
申请号：US12469812
申请日：2009-05-21
申请人： Hisashi Mukataka , Masashi Fujishima , Yukihiro Mori
发明人： Hisashi Mukataka , Masashi Fujishima , Yukihiro Mori
IPC分类号： G03G15/08 , G03G15/06 , G03G15/09
CPC分类号： G03G15/0921
摘要： A developer includes a developer carrying body that carries a two-component developer having a magnetic toner and a carrier. A toner carrying body opposes the developer carrying body and receives toner from the developer carrying body. An image carrying body develops an electrostatic latent image by toner carried on the toner carrying body. A first magnetic member is inside the developer carrying body and opposes a surface of the toner carrying body. A second magnetic member is inside the toner carrying body and opposes the surface of the developer carrying body. The second magnetic member is magnetized to an opposite polarity to the first magnetic member and generates a magnetic force at least on the surface of the toner carrying body in a range of 25 mT to 40 mT in a direction perpendicular to the surface of the toner carrying body.
摘要翻译：显影剂包括携带具有磁性调色剂和载体的双组分显影剂的显影剂承载体。调色剂承载体与显影剂承载体相对并从显影剂承载体接收调色剂。图像承载体通过携带在调色剂承载体上的调色剂显影静电潜像。第一磁性构件位于显影剂承载体的内部并与调色剂承载体的表面相对。第二磁性构件在调色剂承载体的内部并与显影剂承载体的表面相对。第二磁性构件被磁化成与第一磁性构件相反的极性，并且在垂直于调色剂承载的表面的方向上至少在调色剂承载体的表面上产生在25mT至40mT的范围内的磁力身体。

17. 发明授权

US08249489B2 Developing unit and image forming device 失效
标题翻译：显影单元和成像装置
公开(公告)号：US08249489B2
公开(公告)日：2012-08-21
申请号：US13184262
申请日：2011-07-15
申请人： Hiroyuki Hamakawa , Akihiro Watanabe , Masashi Fujishima , Hiroshi Yamazaki , Asami Kotera , Sayo Uemura
发明人： Hiroyuki Hamakawa , Akihiro Watanabe , Masashi Fujishima , Hiroshi Yamazaki , Asami Kotera , Sayo Uemura
IPC分类号： G03G15/08
CPC分类号： G03G15/0818
摘要： A developing unit includes a developing roller which rotates about a rotational axis to supply toner to a photoreceptor, and a magnetic roller which forms a magnetic brush with a two-component developing agent having carrier and the toner and thereby forms a toner layer on the developing roller, the developing roller including: a cylindrical core portion which includes an electric conductor; a first resistive layer which covers a cylindrical surface of the core portion; a second resistive layer which covers the first resistive layer, and has electric-resistivity lower than that of the first resistive layer; and a current leakage control member which prevents leakage of electric current from the core portion toward the second resistive layer through an end of the developing roller along a direction of the rotational axis.
摘要翻译：显影单元包括围绕旋转轴线旋转以向感光体供应调色剂的显影辊和形成具有载体的二组分显影剂和调色剂并由此在显影剂上形成调色剂层的磁刷的磁性辊所述显影辊包括：包括电导体的圆柱形芯部; 覆盖所述芯部的圆筒面的第一电阻层; 第二电阻层，其覆盖所述第一电阻层，并且电阻率低于所述第一电阻层的电阻率; 以及电流泄漏控制构件，其防止电流从所述芯部朝向所述第二电阻层通过所述显影辊的端部沿着所述旋转轴线的方向泄漏。

18. 发明授权

US07826782B2 Developing device and image forming apparatus 有权
标题翻译：显影装置和图像形成装置
公开(公告)号：US07826782B2
公开(公告)日：2010-11-02
申请号：US12331692
申请日：2008-12-10
申请人： Asami Kotera , Hiroyuki Hamakawa , Akihiro Watanabe , Masashi Fujishima , Hiroshi Yamazaki , Sayo Uemura
发明人： Asami Kotera , Hiroyuki Hamakawa , Akihiro Watanabe , Masashi Fujishima , Hiroshi Yamazaki , Sayo Uemura
IPC分类号： G03G15/09
CPC分类号： G03G15/0928 , G03G2215/0861
摘要： A developing device is provided for visualizing an electrostatic latent image previously formed on the surface of an image carrier as a toner image. The developing device has a developing roller placed at a position facing the image carrier, carrying a toner on the surface thereof, conveying the toner and flying the conveyed toner onto the surface of the image carrier; and a resin layer coated on the surface of the developing roller. The absolute value of the difference in charge between the toners in the upper and lower layers of the toner layer formed on the developing roller as the toner carried on the developing roller is 6 μC/g or less.
摘要翻译：提供了一种显影装置，用于将预先形成在图像载体的表面上的静电潜像可视化为调色剂图像。显影装置具有位于面向图像载体的位置的显影辊，在其表面上承载调色剂，输送调色剂并将所输送的调色剂飞行到图像载体的表面上; 以及涂覆在显影辊表面上的树脂层。在显影辊上承载的调色剂上形成在显影辊上的调色剂层的上层和下层中的调色剂之间的电荷差的绝对值为6μC/ g以下。

19. 发明申请

US20080181675A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20080181675A1
公开(公告)日：2008-07-31
申请号：US12019744
申请日：2008-01-25
申请人： Masashi Fujishima , Kiyotaka Kobayashi , Yuki Matsui , Yukihiro Mori , Sayo Uemura , Akihiro Watanabe
发明人： Masashi Fujishima , Kiyotaka Kobayashi , Yuki Matsui , Yukihiro Mori , Sayo Uemura , Akihiro Watanabe
IPC分类号： G03G15/09
CPC分类号： G03G15/0815 , G03G2215/0607
摘要： An image forming apparatus includes a latent image carrying member, a two-component developer carrying member holding on an outer surface a developer containing carrier beads and toner particles, the two-component developer carrying member having a first magnetic element mounted therein, a toner carrying member carrying a thin toner layer on an outer surface, a toner collecting roller for collecting the toner particles scattered and suspended in the vicinity of the two-component developer carrying member and the toner carrying member, the toner collecting roller having a second magnetic element mounted therein, and a housing accommodating the two-component developer carrying member, the toner carrying member and the toner collecting roller. The toner collecting roller is located face to face with the two-component developer carrying member with the first and second magnetic elements disposed to face each other with oppositely directed polarities.
摘要翻译：图像形成装置包括潜像承载构件，保持在外表面上的包含载体珠和调色剂颗粒的显影剂的双组分显影剂承载构件，所述双组分显影剂承载构件具有安装在其中的第一磁性元件，载体在外表面上承载薄调色剂层的构件，用于收集散布并悬浮在双组分显影剂承载构件附近的调色剂颗粒的调色剂收集辊和调色剂承载构件，调色剂收集辊具有安装的第二磁性元件和容纳双组分显影剂承载构件的壳体，调色剂承载构件和调色剂收集辊。调色剂收集辊与双组分显影剂承载构件面对面地定位，其中第一和第二磁性元件被设置为具有相反方向的极性彼此面对。

20. 发明申请

US20090311012A1 DEVELOPING DEVICE AND IMAGE-FORMING APPARATUS 有权
标题翻译：开发设备和图像形成设备
公开(公告)号：US20090311012A1
公开(公告)日：2009-12-17
申请号：US12405446
申请日：2009-03-17
申请人： Sayo Mabuchi , Hiroyuki Hamakawa , Akihiro Watanabe , Masashi Fujishima , Hiroshi Yamazaki , Asami Kotera
发明人： Sayo Mabuchi , Hiroyuki Hamakawa , Akihiro Watanabe , Masashi Fujishima , Hiroshi Yamazaki , Asami Kotera
IPC分类号： G03G15/08
CPC分类号： G03G15/0818 , G03G2215/0861
摘要： This invention relates to a developing device 18 for use in an image-forming apparatus comprising a developing roller 100 having a conductive base surface 19 which may be covered with a resin layer 17 layer comprising an ion conductive material and a silicone-modified urethane resin having an ether structure.
摘要翻译：本发明涉及一种用于图像形成装置的显影装置18，其包括具有导电基底表面19的显影辊100，该导电基底表面19可以被包含离子导电材料的树脂层17层和具有硅氧烷改性的聚氨酯树脂醚结构。

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