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公开(公告)号：US07835669B2
公开(公告)日：2010-11-16
申请号：US12704818
申请日：2010-02-12
IPC分类号： G03G15/02
CPC分类号： G03G15/0233
摘要： The present invention provides a charging roller having a stable chargeability and capable of preventing occurrence of “fogging” on an electrophotographic image. The invention relates to a contact-charging type charging roller which includes a conductive support and a surface layer. The surface layer contains a binder, resin particles containing a carbon black dispersed in the binder, and graphitized particles dispersed in the binder; and the surface layer has, on its surface, convex portions derived from the resin particles, and convex portions derived from the graphitized particles. These convex portions have a specific relationship.
摘要翻译： 本发明提供一种具有稳定的带电性并能够防止在电子照相图像上发生“起雾”的充电辊。 本发明涉及一种接触充电型充电辊，其包括导电支撑件和表面层。 表面层含有粘合剂，分散在粘合剂中的含有炭黑的树脂颗粒和分散在粘合剂中的石墨化颗粒; 并且表面层在其表面上具有衍生自树脂颗粒的凸部和源自石墨化颗粒的凸部。 这些凸部具有特定关系。
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公开(公告)号：US08980423B2
公开(公告)日：2015-03-17
申请号：US12723148
申请日：2010-03-12
CPC分类号： G03G15/0233 , Y10T428/25
摘要： Concerned with a charging member in the conductive surface layer of which the conductive particles are so kept from agglomerating as to make charging performance not easily change even where the surface layer expands and contracts repeatedly in various environments. The charging member is a charging member having a conductive substrate and formed on the substrate a conductive elastic layer and a conductive surface layer. The elastic layer contains a polymer having a unit coming from ethylene oxide, and the surface layer contains a binder resin and graphitized particles. The binder resin contains a resin having in the molecule a urethane linkage or a siloxane linkage, or a urethane linkage and a siloxane linkage, and the graphitized particles have a graphite (002) plane lattice spacing of from 0.3362 nm or more to 0.3449 nm or less.
摘要翻译： 涉及导电表面层中的导电表面层中的充电构件，其导电颗粒被保持凝聚，使得即使在各种环境中表面层膨胀和重复收缩的情况下，充电性能也不容易改变。 充电构件是具有导电基板的充电构件，并且在基板上形成导电弹性层和导电表面层。 弹性层含有具有来自环氧乙烷的单元的聚合物，表面层含有粘结剂树脂和石墨化颗粒。 粘结剂树脂含有在分子中具有氨基甲酸酯键或硅氧烷键或氨基甲酸酯键和硅氧烷键的树脂，并且石墨化颗粒的石墨（002）面晶格间距为0.3362nm以上至0.3449nm以下，或 减。
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公开(公告)号：US20100166454A1
公开(公告)日：2010-07-01
申请号：US12723148
申请日：2010-03-12
CPC分类号： G03G15/0233 , Y10T428/25
摘要： Concerned with a charging member in the conductive surface layer of which the conductive particles are so kept from agglomerating as to make charging performance not easily change even where the surface layer expands and contracts repeatedly in various environments. The charging member is a charging member having a conductive substrate and formed on the substrate a conductive elastic layer and a conductive surface layer. The elastic layer contains a polymer having a unit coming from ethylene oxide, and the surface layer contains a binder resin and graphitized particles. The binder resin contains a resin having in the molecule a urethane linkage or a siloxane linkage, or a urethane linkage and a siloxane linkage, and the graphitized particles have a graphite (002) plane lattice spacing of from 0.3362 nm or more to 0.3449 nm or less.
摘要翻译： 涉及导电表面层中的导电表面层中的充电构件，其导电颗粒被保持凝聚，使得即使在各种环境中表面层膨胀和重复收缩的情况下，充电性能也不容易改变。 充电构件是具有导电基板的充电构件，并且在基板上形成导电弹性层和导电表面层。 弹性层含有具有来自环氧乙烷的单元的聚合物，表面层含有粘结剂树脂和石墨化颗粒。 粘结剂树脂含有在分子中具有氨基甲酸酯键或硅氧烷键或氨基甲酸酯键和硅氧烷键的树脂，并且石墨化颗粒的石墨（002）面晶格间距为0.3362nm以上至0.3449nm以下，或 减。
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公开(公告)号：US20100142998A1
公开(公告)日：2010-06-10
申请号：US12704818
申请日：2010-02-12
CPC分类号： G03G15/0233
摘要： The present invention provides a charging roller having a stable chargeability and capable of preventing occurrence of “fogging” on an electrophotographic image. The invention relates to a contact-charging type charging roller which includes a conductive support and a surface layer. The surface layer contains a binder, resin particles containing a carbon black dispersed in the binder, and graphitized particles dispersed in the binder; and the surface layer has, on its surface, convex portions derived from the resin particles, and convex portions derived from the graphitized particles. These convex portions have a specific relationship.
摘要翻译： 本发明提供一种具有稳定的带电性并能够防止在电子照相图像上发生“起雾”的充电辊。 本发明涉及一种接触充电型充电辊，其包括导电支撑件和表面层。 表面层含有粘合剂，分散在粘合剂中的含有炭黑的树脂颗粒和分散在粘合剂中的石墨化颗粒; 并且表面层在其表面上具有衍生自树脂颗粒的凸部和源自石墨化颗粒的凸部。 这些凸部具有特定关系。
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公开(公告)号：US20120141162A1
公开(公告)日：2012-06-07
申请号：US13372459
申请日：2012-02-13
申请人： Hiroshi Mayuzumi , Tomohito Taniguchi , Hidekazu Matsuda , Nozomu Takahata , Yusuke Yagisawa , Satoshi Koide , Masataka Kodama
发明人： Hiroshi Mayuzumi , Tomohito Taniguchi , Hidekazu Matsuda , Nozomu Takahata , Yusuke Yagisawa , Satoshi Koide , Masataka Kodama
CPC分类号： G03G15/0233 , Y10T428/25 , Y10T428/259 , Y10T428/31663
摘要： Provided is the following charging member of an electrophotographic apparatus. The charging member suppresses the occurrence of each of a streak-like image, a spot-like image, and a rough image that occur when image formation is performed over a long time period. Also provided are a process cartridge and an electrophotographic apparatus each having the charging member. A compound having a siloxane dendrimer structure at a vinyl group or a side chain of a vinyl polymer is incorporated into the surface layer of the charging member comprising a conductive substrate and the surface layer.
摘要翻译： 提供了电子照相设备的以下充电构件。 充电构件抑制在长时间执行图像形成时发生的条纹状图像，斑点状图像和粗略图像中的每一个的发生。 还提供了具有充电部件的处理盒和电子照相设备。 在乙烯基聚合物的乙烯基或侧链具有硅氧烷树枝状聚合物结构的化合物被并入到包括导电基底和表面层的充电部件的表面层中。
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公开(公告)号：US08383234B2
公开(公告)日：2013-02-26
申请号：US13372459
申请日：2012-02-13
申请人： Hiroshi Mayuzumi , Tomohito Taniguchi , Hidekazu Matsuda , Nozomu Takahata , Yusuke Yagisawa , Satoshi Koide , Masataka Kodama
发明人： Hiroshi Mayuzumi , Tomohito Taniguchi , Hidekazu Matsuda , Nozomu Takahata , Yusuke Yagisawa , Satoshi Koide , Masataka Kodama
CPC分类号： G03G15/0233 , Y10T428/25 , Y10T428/259 , Y10T428/31663
摘要： Provided is the following charging member of an electrophotographic apparatus. The charging member suppresses the occurrence of each of a streak-like image, a spot-like image, and a rough image that occur when image formation is performed over a long time period. Also provided are a process cartridge and an electrophotographic apparatus each having the charging member. A compound having a siloxane dendrimer structure at a vinyl group or a side chain of a vinyl polymer is incorporated into the surface layer of the charging member comprising a conductive substrate and the surface layer.
摘要翻译： 提供了电子照相设备的以下充电构件。 充电构件抑制在长时间执行图像形成时发生的条纹状图像，斑点状图像和粗略图像中的每一个的发生。 还提供了具有充电部件的处理盒和电子照相设备。 在乙烯基聚合物的乙烯基或侧链具有硅氧烷树枝状聚合物结构的化合物被并入到包括导电基底和表面层的充电部件的表面层中。
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公开(公告)号：US20100135695A1
公开(公告)日：2010-06-03
申请号：US12699380
申请日：2010-02-03
CPC分类号： G03G15/0233
摘要： A charging member is provided which can inhibit defective images due to poor charging and adhering substances from occurring even after being repeatedly used for a long time, and can inhibit deformation and defective images due to the C set, caused by a change in rotational speed accompanying such deformation even after being left standing in a stopping state for a long time. The charging member includes a conductive support and a surface layer. The surface layer includes a binder and resin particles dispersed in the binder, each resin particle having a depressed portion on its surface. Protrusions resulting from the resin particles are formed on the surface of the surface layer. The protrusions each have a depressed portion resulting from the depressed portion of the resin particle, and the surface of the resin particle is covered with the binder.
摘要翻译： 提供充电构件，其可以抑制由于充电不良而导致的不良图像，并且即使在长时间重复使用之后也发生粘附物质，并且可以抑制伴随着旋转速度的变化而引起的由于设定的变形和缺陷图像 即使在长时间停留在停止状态之后，这种变形也是如此。 充电构件包括导电支撑件和表面层。 表面层包括分散在粘合剂中的粘合剂和树脂颗粒，每个树脂颗粒在其表面上具有凹陷部分。 由表面层的表面形成由树脂粒子产生的突出物。 突起各自具有由树脂颗粒的凹陷部分产生的凹陷部分，并且树脂颗粒的表面被粘合剂覆盖。
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公开(公告)号：US08548359B2
公开(公告)日：2013-10-01
申请号：US13555040
申请日：2012-07-20
IPC分类号： G03G15/02
CPC分类号： G03G15/0233
摘要： A charging member is provided which can not easily cause vibration and can stably charge a photosensitive member, even where a high-frequency alternating-current voltage is applied thereto. It is a charging member having an electrically conductive substrate, an electrically conductive elastic layer and a surface layer, and the elastic layer has, in the order from the substrate side, a first rubber layer and a second rubber layer laminated to the first rubber layer, and, where the natural vibration frequency of the first rubber layer is represented by f1 and the natural vibration frequency of the second rubber layer is represented by f2, has a natural vibration frequency ratio, f2/f1, of from 2.35 or more to 10.0 or less.
摘要翻译： 即使在施加高频交流电压的情况下，也能够容易地产生振动并且能够稳定地对感光体进行充电的充电部件。 是具有导电性基板，导电性弹性层和表面层的充电部件，弹性层从基板侧依次层叠有第一橡胶层和层叠到第一橡胶层的第二橡胶层 ，并且其中第一橡胶层的固有振动频率由f1表示，并且第二橡胶层的固有振动频率由f2表示，其固有振动频率比f2 / f1为2.35以上至10.0 或更少。
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公开(公告)号：US20110305481A1
公开(公告)日：2011-12-15
申请号：US13217500
申请日：2011-08-25
申请人： Tomohito Taniguchi , Satoshi Koide
发明人： Tomohito Taniguchi , Satoshi Koide
CPC分类号： G03G15/0233
摘要： An object of the present invention is to provide a charging member that brings out stable charging performance over a long period of time and also makes the surface of an electrophotographic photosensitive member not easily come to wear non-uniformly. It is a charging member having a conductive substrate and a conductive resin layer; the conductive resin layer containing a binder, conductive fine particles, and bowl-shaped resin particles each of which has an opening; the bowl-shaped resin particles being contained in the conductive resin layer in such a way as not to be exposed to the surface of the charging member; and the surface of the charging member having concavities derived from openings of the bowl-shaped resin particles and protrusions derived from edges of the openings of the bowl-shaped resin particles.
摘要翻译： 本发明的一个目的是提供一种充电部件，其在长时间内产生稳定的充电性能，并且使得电子照相感光构件的表面不容易不均匀地磨损。 是具有导电性基板和导电性树脂层的充电部件， 含有粘合剂的导电树脂层，导电微粒和各具有开口的碗状树脂颗粒; 所述碗形树脂颗粒以不暴露于所述充电部件的表面的方式包含在所述导电树脂层中; 并且充电构件的表面具有源自碗状树脂颗粒的开口的凹部和源自碗状树脂颗粒的开口的边缘的突起。
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公开(公告)号：US08532534B2
公开(公告)日：2013-09-10
申请号：US13217500
申请日：2011-08-25
申请人： Tomohito Taniguchi , Satoshi Koide
发明人： Tomohito Taniguchi , Satoshi Koide
IPC分类号： G03G15/02
CPC分类号： G03G15/0233
摘要： A charging member includes a conductive substrate and a conductive resin layer. The conductive resin layer includes a binder, conductive fine particles, and bowl-shaped resin particles each of which has an opening. The bowl-shaped resin particles are contained in the conductive resin layer in such a way as not to be exposed to an outer surface of the charging member, and the surface of the charging member has concavities derived from openings of the bowl-shaped resin particles and protrusions derived from edges of the openings of the bowl-shaped resin particles. The bowl-shaped resin particles each has a roundish concavity and includes inner walls lined with the conductive resin layer.
摘要翻译： 充电构件包括导电基板和导电树脂层。 导电性树脂层包括粘合剂，导电性细颗粒和各自具有开口的碗状树脂颗粒。 碗形树脂颗粒以不暴露于充电构件的外表面的方式包含在导电树脂层中，并且充电构件的表面具有源自碗状树脂颗粒的开口的凹部 以及源自碗状树脂颗粒的开口的边缘的突起。 碗状树脂颗粒各自具有圆形凹部，并且包括内壁形成有导电树脂层的内壁。
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