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公开(公告)号：US06788911B2
公开(公告)日：2004-09-07
申请号：US10140982
申请日：2002-05-09
IPC分类号： G03G1502
CPC分类号： G03G15/0216
摘要： A charging device includes a charging member for electrically charging a member to be charged which is adapted to form a nip with a member to be charged which has a surface layer having a volume resistivity of 1×109-1×1014 &OHgr;cm, said charging member having an elastic member and movable with a peripheral speed difference relative to the member to be charged; and electroconductive particles carried on said charging member to the nip, wherein a peripheral speed Vd (mm/sec) of said member to be charged, a peripheral speed Vc (mm/sec) of said charging member, a width N (mm) of the nip measured in a moving direction of said charging member, and a coverage ratio Rc of said electroconductive particles on said charging member, satisfy: N·Rc·|Vc−Vd|/Vd≧1.
摘要翻译： 充电装置包括充电构件，用于对被充电构件进行充电，该充电构件适于与具有体积电阻率为1×10 9 -1×10 4Ω·cm的表面层的待充电构件形成压区，所述充电构件 充电构件具有弹性构件并且可相对于待充电构件以圆周速度差移动; 以及在所述充电构件上承载到所述辊隙的导电颗粒，其中所述被充电构件的圆周速度Vd（mm / sec），所述充电构件的圆周速度Vc（mm / sec），宽度N（mm） 在所述充电构件的移动方向上测量的压区以及所述充电构件上的所述导电颗粒的覆盖率Rc满足：
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公开(公告)号：US06553199B2
公开(公告)日：2003-04-22
申请号：US09981810
申请日：2001-10-19
IPC分类号： G03G1500
CPC分类号： G03G15/0233
摘要： A charging device, suitable for use in an electrophotographic image forming apparatus, is formed of an object to be charged, and a roller-shaped charging member disposed in contact with the object via electroconductive particles and supplied with a voltage to charge the objects. The charging member has a surface layer including an elastic foam and is moved with a surface speed difference relative to the object. The charging member has surface cavities having an average diameter of 5 to 150 &mgr;m and occupying an area percentage of 50 to 90%. An image forming apparatus and a process cartridge therefor including the charging device are also provided.
摘要翻译： 适用于电子照相图像形成装置的充电装置由被充电物体形成，以及辊状充电部件，其通过导电颗粒与物体接触并提供电压以对物体充电。 充电构件具有包括弹性泡沫的表面层，并且相对于物体以表面速度差移动。 充电构件具有平均直径为5至150μm并具有50至90％的面积百分比的表面空腔。 还提供了一种包括充电装置的图像形成装置及其处理盒。
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公开(公告)号：US06289190B1
公开(公告)日：2001-09-11
申请号：US09389584
申请日：1999-09-03
申请人： Shoji Amamiya , Akio Maruyama , Yukio Nagase , Toshihiro Kikuchi , Koichi Suzuki , Harumi Ishiyama
发明人： Shoji Amamiya , Akio Maruyama , Yukio Nagase , Toshihiro Kikuchi , Koichi Suzuki , Harumi Ishiyama
IPC分类号： G03G1502
CPC分类号： G03G5/0614 , G03G5/0564 , G03G5/14708 , G03G5/14756 , G03G13/025 , G03G2215/021 , G03G2221/183
摘要： An electrophotographic apparatus includes an electrophotographic photosensitive member; a charger for charging the electrophotographic photosensitive member including a charging member supplied with a voltage and disposed in contact with the photosensitive member so as to form a nip with the photosensitive member to charge the photosensitive member; an exposure device; a developing device; and a transfer device. The photosensitive member includes a surface layer containing a charge-transporting material having an oxidation potential of 0.4-1.0 volt. Charging promoter particles are present at the nip between the photosensitive member and the charging member to injection-charge the photosensitive member. Because of the selection of the charge-transporting material and the presence of the charging promoter particles, the photosensitive member can be effectively injection-charged.
摘要翻译： 电子照相设备包括电照相感光构件; 用于对电子照相感光构件充电的充电器，该充电元件包括被提供电压并与感光构件接触地设置的充电构件，以便与感光构件形成与该感光构件充电的压区; 曝光装置; 显影装置; 和转移装置。 感光构件包括含有氧化电位为0.4-1.0伏的电荷输送材料的表面层。 充电促进剂颗粒存在于感光构件和充电构件之间的辊隙处，以对感光构件进行注射充电。 由于电荷输送材料的选择和带电促进剂颗粒的存在，可以有效地注入感光元件。
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4.发明授权公开(公告)号：US06272301B1
公开(公告)日：2001-08-07
申请号：US09401772
申请日：1999-09-22
申请人： Masaya Kawada , Toshiyuki Ehara , Harumi Ishiyama
发明人： Masaya Kawada , Toshiyuki Ehara , Harumi Ishiyama
IPC分类号： G03G2100
CPC分类号： G03G21/0058 , G03G15/0233
摘要： An image forming apparatus includes an image bearing member for bearing an electrostatic image; a developing device for developing the electrostatic image on the image bearing member with toner into a toner image; a transfer device for transferring the toner image onto a transfer material; a charging and cleaning device for removing residual toner after image transfer from the image bearing member and for charging the image bearing member; wherein the charging and cleaning device includes a rotatable member which has an electroconductive foam for retaining electroconductive particles and which is rotatable while rubbing the image bearing member.
摘要翻译： 图像形成装置包括用于承载静电图像的图像承载部件; 用于将具有调色剂的图像承载部件上的静电图像显影成调色剂图像的显影装置; 用于将调色剂图像转印到转印材料上的转印装置; 充电和清洁装置，用于从图像承载部件图像转印后去除残留调色剂，并对图像承载部件充电; 其中所述充电和清洁装置包括可旋转构件，所述可旋转构件具有用于保持导电颗粒的导电泡沫体，并且可摩擦所述图像承载构件。
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公开(公告)号：US6061539A
公开(公告)日：2000-05-09
申请号：US512342
申请日：1995-08-08
申请人： Harumi Ishiyama , Yasushi Sato , Hideyuki Yano , Tadashi Furuya , Yasunori Chigono , Seiji Mashimo
发明人： Harumi Ishiyama , Yasushi Sato , Hideyuki Yano , Tadashi Furuya , Yasunori Chigono , Seiji Mashimo
CPC分类号： G03G15/751 , G03G15/0241 , G03G2215/022
摘要： A charging member supporting magnetic particles for charging a member to be charged, including: an electroconductive member to which a voltage is applicable; and a member electrically insulated from the electroconductive member at an end portion, in a longitudinal direction of the charging member, of the magnetic particles, wherein deposition of magnetic particles to the member to be charged from the charging member is effectively prevented.
摘要翻译： 一种充电构件，其支撑用于对要充电的构件充电的磁性颗粒，包括：可应用电压的导电构件; 以及与充电部件的纵向方向的端部与导电部件电绝缘的部件，其中磁性粒子从充电部件向被充电部件的沉积是有效的。
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公开(公告)号：US6002900A
公开(公告)日：1999-12-14
申请号：US94625
申请日：1998-06-15
申请人： Harumi Ishiyama
发明人： Harumi Ishiyama
CPC分类号： G03G15/0241 , G03G21/0064 , G03G9/0819 , G03G2215/022
摘要： Improvement has been made in an image forming method comprising charging electrically an image holding member, forming a latent electrostatic image on the image holding member, developing the latent image with a toner, transferring the toner image onto a toner image receiving medium, and recovering untransferred toner. In this method, a magnetic brush formed from magnetic particles electrifies the image holding member by contact with the image holding member surface, recovers temporarily at least a part of the toner remaining on the image holding member after the image transfer, and transfers the recovered toner further again onto the image holding member, wherein the toner has a weight-average particle diameter of not larger than 1/3 of average particle diameter of the magnetic particles and the magnetic particles contain particles of diameter of not larger than 1/3 of the average particle diameter of the magnetic particles at a content ranging from 0 to 50% by volume. Thereby, contamination of the magnetic particles by the toner and interception of the electric conduction path in the magnetic brush are prevented, and deterioration of the toner is prevented without excessive shearing of the recovered toner with magnetic particles.
摘要翻译： 在图像形成方法中进行了改进，其包括对图像保持部件进行电荷充电，在图像保持部件上形成静电潜像，用调色剂显影潜像，将调色剂图像转印到调色剂图像接收介质上， 墨粉 在这种方法中，由磁性颗粒形成的磁刷通过与图像保持构件表面的接触使图像保持构件带电，在图像转印之后暂时恢复保留在图像保持构件上的调色剂的至少一部分，并将回收的调色剂 再次到图像保持部件上，其中调色剂具有不大于+ E的重均粒径，f1 / 3 + EE的磁性颗粒的平均粒径，并且磁性颗粒含有直径不大的颗粒 磁性粒子的平均粒径为+ 0〜50体积％范围内的1/3 + EE。 由此，可以防止调色剂对磁性颗粒的污染和磁刷中的导电路径的截取，并且可以防止调色剂的劣化，而不会使用磁性颗粒过度剪切回收的调色剂。
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公开(公告)号：US5666192A
公开(公告)日：1997-09-09
申请号：US508900
申请日：1995-07-28
申请人： Seiji Mashimo , Yasushi Sato , Harumi Ishiyama , Tadashi Furuya
发明人： Seiji Mashimo , Yasushi Sato , Harumi Ishiyama , Tadashi Furuya
CPC分类号： G03G15/0241 , G03G2215/022 , Y10S428/90
摘要： A charging member for charging a member to be charged, includes a magnet member and a surface electroconductive layer for supporting electroconductive magnetic particles, the layer being supported by the magnet member and rotating together with the magnet member in a region supporting the magnetic particles.
摘要翻译： 用于对要充电的部件充电的充电部件包括用于支撑导电磁性颗粒的磁体部件和表面导电层，该层由磁体部件支撑并与磁性部件一起在支撑磁性颗粒的区域中旋转。
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公开(公告)号：US07424232B2
公开(公告)日：2008-09-09
申请号：US11476137
申请日：2006-06-28
IPC分类号： G03G15/02
CPC分类号： G03G15/5037 , G03G15/0266 , G03G2215/02
摘要： A charging apparatus includes a charger for being supplied with an AC voltage and for electrically charging a member to be charged; a current measurer for measuring a current flowing between the charger and the member to be charged when the AC voltage is supplied to the charger; and a particular current extractor for extracting from the current a particular current having a particular frequency.
摘要翻译： 充电装置包括：充电器，其被提供有交流电压，并对要充电的元件进行充电; 电流测量器，用于当将AC电压提供给充电器时测量在充电器和待充电元件之间流动的电流; 以及用于从当前提取具有特定频率的特定电流的特定电流提取器。
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9.发明授权Charging member having an elastic foam member including cell portions whose gap ratio is 5% to 50%, charging apparatus, process cartridge, and image forming apparatus having such charging member 有权具有弹性泡沫构件的充电构件，其包括间隙比为5％至50％的电池部分，充电装置，处理盒和具有这种充电构件的成像装置公开(公告)号：US06904253B2
公开(公告)日：2005-06-07
申请号：US10123248
申请日：2002-04-17
CPC分类号： G03G15/0233 , G03G2221/183
摘要： A charging member for charging a member to be charged, includes an elastic foam member provided at a surface of the charging member. The elastic foam member includes a plurality of cell portions with wall portion defining the cell portions. The gaps connecting the cell portions have areas which are not less than 5% and not more than 50%, for respective cells.
摘要翻译： 用于对要充电的构件充电的充电构件包括设置在充电构件的表面处的弹性泡沫构件。 弹性泡沫构件包括具有限定单元部分的壁部的多个单元部分。 连接单元部分的间隙对于各个单元具有不小于5％且不大于50％的面积。
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10.发明授权Charging apparatus, process cartridge and image forming apparatus having electroconductive particles charged in a nip between a charging member and a member to be charged 失效充电装置，处理盒和图像形成装置，其具有在充电构件和待充电构件之间的辊隙中充电的导电颗粒公开(公告)号：US06832062B2
公开(公告)日：2004-12-14
申请号：US10357228
申请日：2003-02-04
IPC分类号： G03G1502
CPC分类号： G03G15/0216
摘要： A charging apparatus includes a charging member for charging a member to be charged while forming a nip with the member to be charged, and electroconductive particles disposed in the nip. The charging member is supplied with a voltage of a certain polarity, a surface of the member to be charged is triboelectrically charged by a surface of the charging member so as to have a polarity opposite from that of the voltage, and the electroconductive particles are triboelectrically charged in the nip so as to have a polarity opposite from that of the voltage.
摘要翻译： 充电装置包括充电构件，用于在与待充电构件形成辊隙的同时对被充电构件充电，以及设置在辊隙中的导电颗粒。 充电构件被提供一定极性的电压，被充电构件的表面被充电构件的表面摩擦充电，以便具有与电压的极性相反的极性，并且导电颗粒是摩擦电的 在钳口中充电以具有与电压相反的极性。
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