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    Developing device having the lengths of two toner transporting rollers and an image bearing member in specific relationships
    22.
    发明授权
    Developing device having the lengths of two toner transporting rollers and an image bearing member in specific relationships 失效
    显影装置具有两个调色剂输送辊的长度和具有特定关系的图像承载部件

    公开(公告)号：US5697026A

    公开(公告)日：1997-12-09

    申请号：US526232

    申请日：1995-09-11

    申请人： Iwao Matsumae ,  Kazuhiro Yuasa ,  Shuichi Endoh ,  Yoshiaki Tanaka ,  Hiroshi Hosokawa ,  Mugijiroh Uno ,  Hiroshi Saitoh ,  Eiji Takenaka ,  Toshihiro Sugiyama ,  Tetsuo Yamanaka ,  Eisaku Murakami ,  Satoru Komatsubara

    发明人： Iwao Matsumae ,  Kazuhiro Yuasa ,  Shuichi Endoh ,  Yoshiaki Tanaka ,  Hiroshi Hosokawa ,  Mugijiroh Uno ,  Hiroshi Saitoh ,  Eiji Takenaka ,  Toshihiro Sugiyama ,  Tetsuo Yamanaka ,  Eisaku Murakami ,  Satoru Komatsubara

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0806 ,  G03G15/0808

    摘要： An image forming apparatus including a developing device having various components with specific relationships between their lengths. There is an image bearing member such as a photoconductive drum or belt having a photosensitive layer. The photosensitive layer has a length A. A first toner transporting roller has two ends, the length between the two ends being defined as B. Additionally, there is a second toner transporting roller, disposed between and contacting both the image bearing member and the first toner transporting roller. The length of the second toner transporting roller being defined as C. The components of the image forming apparatus are constructed such the length of the second toner transporting roller is less than or equal to the lengths of both the first toner transporting roller and the photosensitive layer of the image bearing member. This means that the relationships A>C and B>C may exist. As an alternative, B is approximately equal to C with A being greater than both B and C. As a further alternative, A, B and C are each approximately equal to each other.

    摘要翻译： 一种图像形成装置，包括具有其长度之间具有特定关系的各种部件的显影装置。 存在图像承载部件，例如具有感光层的感光鼓或带。 感光层具有长度A.第一调色剂输送辊具有两个端部，两端之间的长度被定义为B.另外，存在第二调色剂输送辊，其设置在图像承载部件和第一调色剂传送辊之间并与之接触 调色剂输送辊。 第二调色剂输送辊的长度被定义为C.图像形成装置的部件的构造使得第二调色剂输送辊的长度小于或等于第一调色剂输送辊和感光层的长度 的图像承载部件。 这意味着可能存在关系A> C和B> C。 作为替代方案，B大约等于C，其中A大于B和C两者。作为另外的替代方案，A，B和C各自大致相等。

    Developing device for an image forming apparatus
    25.
    发明授权
    Developing device for an image forming apparatus 失效
    用于图像形成装置的显影装置

    公开(公告)号：US5489747A

    公开(公告)日：1996-02-06

    申请号：US430473

    申请日：1995-04-28

    申请人： Eiji Takenaka ,  Kazuhiro Yuasa ,  Shuichi Endoh ,  Iwao Matsumae ,  Yoshiaki Tanaka ,  Hiroshi Hosokawa ,  Mugijiroh Uno ,  Hiroshi Saitoh ,  Toshihiro Sugiyama ,  Tetsuo Yamanaka ,  Eisaku Murakami ,  Satoru Komatsubara

    发明人： Eiji Takenaka ,  Kazuhiro Yuasa ,  Shuichi Endoh ,  Iwao Matsumae ,  Yoshiaki Tanaka ,  Hiroshi Hosokawa ,  Mugijiroh Uno ,  Hiroshi Saitoh ,  Toshihiro Sugiyama ,  Tetsuo Yamanaka ,  Eisaku Murakami ,  Satoru Komatsubara

    IPC分类号： G03G15/09 ,  G03G15/08

    CPC分类号： G03G15/0806 ,  G03G15/0877 ,  G03G15/0891 ,  G03G2215/0861

    摘要： A developing device for an image forming apparatus and having a relatively hard first developing roller formed with fine N-S magnetic poles on the periphery thereof, and a relatively soft second developing roller for conveying toner electrostatically transferred thereto from the first roller toward a photoconductive drum. The toner is charged by friction while being passed through between the first roller and a blade, and then magnetically deposited on the first roller. At a position where the first and second rollers contact each other, only the adequately charged toner is electrostatically transferred from the first roller to the second roller. The second roller conveys the toner toward the drum. As a result, the toner is brought to a developing position in an amount corresponding to a saturation or maximum image density. The second roller is made up of a metallic conductive core, a semiconductive foam layer, and an insulative surface layer implemented by resin. The real resistance between the core and the surface is selected to be higher than 10.sup.3 .OMEGA. but lower than 10.sup.13 .OMEGA.. The ratio of the real resistance associated with the maximum temperature change to the real resistance at normal temperature is selected to be less than or equal to 4 in absolute value.

    摘要翻译： 一种用于图像形成装置的显影装置，并且具有在其周边上形成有细微N-S磁极的相对硬的第一显影辊，以及相对柔软的第二显影辊，用于将从第一辊静电转印的调色剂传送到感光鼓。 调色剂在通过第一辊和叶片之间时通过摩擦进行充电，然后磁性沉积在第一辊上。 在第一和第二辊彼此接触的位置处，只有充足电的调色剂从第一辊静电转移到第二辊。 第二辊将墨粉朝向滚筒传送。 结果，调色剂以对应于饱和度或最大图像浓度的量被带到显影位置。 第二辊由金属导电芯，半导体泡沫层和由树脂实现的绝缘表面层组成。 核心和表面之间的实际电阻选择为高于103欧米茄但低于1013欧米茄。 与最高温度变化相关联的实际电阻与常温下的实际电阻的比值选择为绝对值小于或等于4。

    Image forming apparatus
    27.
    发明申请
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US20110206431A1

    公开(公告)日：2011-08-25

    申请号：US12929675

    申请日：2011-02-08

    申请人： Takaaki Tawada ,  Hiroshi Saitoh ,  Kaoru Yoshino ,  Akira Fujimori ,  Kensuke Sasaki

    发明人： Takaaki Tawada ,  Hiroshi Saitoh ,  Kaoru Yoshino ,  Akira Fujimori ,  Kensuke Sasaki

    IPC分类号： G03G21/00

    CPC分类号： G03G21/0094 ,  G03G21/0011

    摘要： An image forming apparatus includes an image carrier, a cleaning device having a cleaning member that comes into contact with a surface of the image carrier, and a lubricant applying device provided on the downstream side of the cleaning member. The lubricant applying device includes a solid lubricant, a lubricant supply roller, and a trailing type lubricant smoothing blade that is provided on the downstream side of the lubricant supply roller, and comes into belly contact with the surface of the image carrier. After image carrier is stopped, constantly or under a predetermined condition, the surface of the image carrier is moved in a direction opposite to an image forming direction. The opposite movement distance is equal to or more than the shortest distance between a contact point between the lubricant supply roller and the image carrier and a contact point between the lubricant smoothing blade and the image carrier.

    摘要翻译： 图像形成装置包括图像载体，具有与图像载体的表面接触的清洁部件的清洁装置，以及设置在清洁部件的下游侧的润滑剂涂布装置。 润滑剂涂布装置包括固体润滑剂，润滑剂供应辊和拖尾型润滑剂平滑刮刀，其设置在润滑剂供给辊的下游侧，并与图像载体的表面进行腹部接触。 在图像载体停止之后，不断地或在预定条件下，图像载体的表面在与图像形成方向相反的方向上移动。 相反的移动距离等于或大于润滑剂供给辊和图像载体之间的接触点与润滑剂平滑叶片和图像载体之间的接触点之间的最短距离。

    Lubricant supplying device, process cartridge, and image forming apparatus
    28.
    发明申请
    Lubricant supplying device, process cartridge, and image forming apparatus 审中-公开
    润滑剂供应装置，处理盒和成像装置

    公开(公告)号：US20110170908A1

    公开(公告)日：2011-07-14

    申请号：US12926853

    申请日：2010-12-14

    申请人： Hiroshi Saitoh ,  Takaaki Tawada ,  Akira Fujimori

    发明人： Hiroshi Saitoh ,  Takaaki Tawada ,  Akira Fujimori

    IPC分类号： G03G21/00

    CPC分类号： G03G15/161 ,  G03G21/0094

    摘要： A lubricant applying unit that applies lubricant to a photosensitive element includes solid lubricant blended with fatty acid metal salt, a lubricant supplying brush roller, a lubricant applying blade, and a biasing unit of the solid lubricant. In addition, a lubricant applying unit that applies lubricant to an intermediate transfer belt includes solid lubricant blended with inorganic lubricant, a lubricant supplying brush roller, a lubricant applying blade, and a biasing unit of the solid lubricant blended with the inorganic lubricant.

    摘要翻译： 向感光元件施加润滑剂的润滑剂涂布单元包括与脂肪酸金属盐，润滑剂供给刷辊，润滑剂涂布用刀片和固体润滑剂的施力单元混合的固体润滑剂。 另外，向中间转印带施加润滑剂的润滑剂涂布单元包括与无机润滑剂混合的固体润滑剂，润滑剂供给刷辊，润滑剂涂布用刀片和与无机润滑剂混合的固体润滑剂的施加单元。