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41. 发明申请

US20030219282A1 Charging member, charging apparatus and image forming apparatus 失效
标题翻译：充电部件，充电装置和成像装置
公开(公告)号：US20030219282A1
公开(公告)日：2003-11-27
申请号：US10413379
申请日：2003-04-15
申请人： Canon Kabushiki Kaisha
发明人： Hiroshi Satoh , Masataka Kodama
IPC分类号： G03G015/02
CPC分类号： G03G15/0233 , G03G15/0241
摘要： A charging member electrically charges a member to be charged in a state that said charging member forms a nip with the member to be charged and electroconductive particles are present at the nip. The charging member includes an elastic foam member provided at a surface of said charging member. The elastic foam member includes cell portions and cell wall portions defining the cell portions. The cell wall portions have a thickness proportion to the cell portions of not less than 2% and not more than 40%.
摘要翻译：充电构件在充电构件与被充电构件形成辊隙的状态下对要充电的构件进行充电，并且导电颗粒存在于辊隙处。充电构件包括设置在所述充电构件的表面处的弹性泡沫构件。弹性泡沫构件包括限定单元部分的单元部分和单元壁部分。细胞壁部分的厚度与细胞部分的比例不小于2％且不大于40％。

42. 发明授权

US06505021B2 Image forming apparatus having a member for barring an electrification particle form leaking 失效
标题翻译：具有用于禁止带电颗粒泄漏的构件的图像形成装置
公开(公告)号：US06505021B2
公开(公告)日：2003-01-07
申请号：US09816361
申请日：2001-03-26
申请人： Kenichi Shibuya , Atsushi Takeda , Fumiteru Gomi , Kouichi Hashimoto , Yoshiyuki Komiya , Shuichi Kadota
发明人： Kenichi Shibuya , Atsushi Takeda , Fumiteru Gomi , Kouichi Hashimoto , Yoshiyuki Komiya , Shuichi Kadota
IPC分类号： G03G1530
CPC分类号： G03G21/1814 , G03G15/0216 , G03G15/0241 , G03G2215/022 , G03G2221/0005 , G03G2221/183
摘要： An image forming apparatus includes an image bearing member which is movable; an electrifying device which makes contact with the image bearing member and electrifies the image bearing member; a developing device for developing a latent image on the image bearing member by toner; and an abutting member which is provided on a downstream side in a moving direction of the image bearing member with respect to the electrifying device and the contacting portion of the image bearing member and abuts against the image bearing member. The image bearing member, electrified by the electrifying device, is exposed to have the latent image formed thereon, a toner image formed on the image bearing member by the developing device is transferred to a recording material, and the developing device recovers residual toner on the image bearing member after transfer.
摘要翻译：图像形成装置包括可移动的图像承载部件; 与图像承载部件接触并对图像承载部件通电的带电装置; 用于通过调色剂在图像承载部件上显影潜像的显影装置; 以及抵接构件，其设置在图像承载构件的移动方向的下游侧，相对于充电装置和图像承载构件的接触部分抵靠图像承载构件。由充电装置带电的图像承载部件被暴露以形成在其上的潜像，通过显影装置在图像承载部件上形成的调色剂图像被转印到记录材料上，并且显影装置在其上恢复残留调色剂图像承载部件转印后。

43. 发明授权

US06324357B1 Image forming apparatus capable of properly controlling ac voltage applied to a charger 有权
标题翻译：能够适当地控制施加到充电器的交流电压的图像形成装置
公开(公告)号：US06324357B1
公开(公告)日：2001-11-27
申请号：US09604740
申请日：2000-06-28
申请人： Fumiteru Gomi , Kouichi Hashimoto , Yoshiyuki Komiya
发明人： Fumiteru Gomi , Kouichi Hashimoto , Yoshiyuki Komiya
IPC分类号： G03G1502
CPC分类号： G03G21/1889 , G03G15/0241 , G03G2215/022 , G03G2221/0005 , G03G2221/183
摘要： An image forming apparatus includes an image bearing member for bearing a toner image; a transfer device for transferring the toner image onto a transfer material from the image bearing member; a charger for electrically charging the image bearing member, the charger being contactable to residual toner remaining on the image bearing member after transfer of the toner image by the transfer device; a voltage applicator for applying DC and AC voltages to the charger; an image forming device for forming an electrostatic image on the image bearing member charged by the charger; a developing device for developing the electrostatic image by toner; an integrator for integrating degree of usage of the apparatus; and a controller for controlling the AC voltage applied to the charger in accordance with the integrated degree of usage provided by the integrator.
摘要翻译：图像形成装置包括用于承载调色剂图像的图像承载部件; 用于将调色剂图像从图像承载部件转印到转印材料上的转印装置; 用于对图像承载部件进行充电的充电器，充电器可通过转印装置转印调色剂图像后与残留在图像承载部件上的剩余调色剂接触; 用于向充电器施加DC和AC电压的电压施加器; 用于在由充电器充电的图像承载部件上形成静电图像的图像形成装置; 用于通过调色剂显影静电图像的显影装置; 用于集成装置的使用程度的积分器; 以及控制器，用于根据由积分器提供的综合使用程度来控制施加到充电器的AC电压。

44. 发明授权

US06301459B1 Charging apparatus with first and second charging members 有权
标题翻译：具有第一和第二充电构件的充电装置
公开(公告)号：US06301459B1
公开(公告)日：2001-10-09
申请号：US09502601
申请日：2000-02-11
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
IPC分类号： G03G1502
CPC分类号： G03G15/751 , G03G15/0241 , G03G2215/022
摘要： A charging apparatus includes a first charging member of being supplied with a voltage to charge a member to be charged. A first charging member has magnetic particles in the form of a magnetic brush contactable to the member to be charged. A second charging member charges a region of the member to be charged corresponding to an end portion, in a longitudinal direction of the charging member, of the magnetic particles, wherein by the second charging member, the region has a potential of the same charge polarity of the voltage when the region reaches a charging position of this first charging member.
摘要翻译：充电装置包括：第一充电构件，其被提供有电压以对要充电的构件进行充电。第一充电元件具有可与被充电元件接触的磁刷形式的磁性颗粒。第二充电部件对磁性粒子的沿充电部件的长度方向的端部的被充电部件的区域进行充电，其中，通过第二充电部件，该区域具有相同电荷极性的电位当该区域到达该第一充电部件的充电位置时的电压。

45. 发明授权

US6038419A Contact charging device having a magnetic brush comprised of magnetic particles for electrostatically charging a photosensitive drum 失效
标题翻译：接触充电装置具有由磁性颗粒构成的磁刷，用于对感光鼓进行静电充电
公开(公告)号：US6038419A
公开(公告)日：2000-03-14
申请号：US138400
申请日：1998-08-24
申请人： Yuzo Tokunaga
发明人： Yuzo Tokunaga
IPC分类号： G03G15/02 , G03G15/00
CPC分类号： G03G15/0241
摘要： A charging apparatus for an electrophotographic apparatus has a charging member provided with a magnetic brush of magnetic particles and an object member to be charged. The charging member is capable of electrostatically charging the object member upon application of a voltage. The magnetic particles are composed of a composite containing 80 to 98% by weight of a metal oxide and a thermosetting resin having been carbonized in part. Magnetic particles having a particle diameter 1/2 times or less the number-average particle diameter of the particles are contained in an amount of 30% or less by number.
摘要翻译：一种用于电子照相设备的充电装置具有充电构件，该充电构件设置有磁性颗粒的磁刷和要充电的对象构件。充电构件能够在施加电压时对对象构件进行静电充电。磁性粒子由含有80〜98重量％的金属氧化物和部分碳化的热固性树脂的复合体构成。颗粒的数均粒径为+ E，fra 1/2 + EE倍以下的磁性粒子的含量为30％以下。

46. 发明授权

US6035162A Charging device and image forming apparatus 有权
标题翻译：充电装置及成像装置
公开(公告)号：US6035162A
公开(公告)日：2000-03-07
申请号：US140405
申请日：1998-08-26
申请人： Yasunori Chigono
发明人： Yasunori Chigono
IPC分类号： G03G15/02
CPC分类号： G03G15/0241 , G03G2215/022
摘要： A charging apparatus for charging a member to be charged which has a surface layer having a volume resistivity of 1.times.10.sup.9 -1.times.10.sup.14 .OMEGA.cm; a charging member contactable to the member to be charged to electrically charge the member to be charged, the charging member being supplied with a voltage having an AC voltage component; wherein e time constant .tau. (sec) of the member to be charged and the charging member, a frequency f (Hz) of the AC voltage component, and an effective voltage V.sub.AC (V) of the AC voltage component, satisfy:2V.sub.AC {1-exp(-1/2f/.tau.)}/{1+exp(-1/2f/.tau.)}.ltoreq.50.
摘要翻译：一种充电装置，用于对具有体积电阻率为1×109-1×1014欧姆·厘米的表面层的被充电部件进行充电; 充电构件，其可与要充电的构件接触以对要充电的构件进行充电，所述充电构件被提供具有AC电压分量的电压; 其中被充电部件和充电部件的e时间常数τ（sec），AC电压分量的频率f（Hz）和AC电压分量的有效电压VAC（V）满足：2VAC {1 -exp（ - + E，fra 1/2 + EE f / tau）} / {1 + exp（ - + E，fra 1/2 + EE f / tau）} = 50。

47. 发明授权

US6026260A Electrophotographic apparatus, image forming method and process cartridge 有权
标题翻译：电子照相设备，成像方法和处理盒
公开(公告)号：US6026260A
公开(公告)日：2000-02-15
申请号：US175327
申请日：1998-10-20
申请人： Shuichi Aita , Fumihiro Arahira , Kiyoshi Mizoe , Toshio Takamori
发明人： Shuichi Aita , Fumihiro Arahira , Kiyoshi Mizoe , Toshio Takamori
IPC分类号： G03G15/02
CPC分类号： G03G15/0241 , G03G2215/022 , Y10S430/102
摘要： An electrophotographic apparatus includes: an electrophotographic photosensitive member, a charging device including a charging member formed of magnetic particles and disposed contactable to the photosensitive member so as to charge the photosensitive member based on a voltage applied thereto, exposure device, developing device, and a transfer device. The magnetic particles exhibit a good charging ability for a long period and therefore provide a good continuous image-forming performance because they are formed of ferrite particles including a ferrite having a very limited composition represented by the formula of:(MnO).sub.x (MgO).sub.y (Fe.sub.2 O.sub.3).sub.z,wherein x, y and z are numbers satisfying x+y+z.ltoreq.1, 0.2
摘要翻译：电子照相设备包括：电子照相感光构件，充电装置，其包括由磁性颗粒形成的充电构件，并且设置成与感光构件接触，以便基于施加于其上的电压对感光构件充电，曝光装置，显影装置和传输设备。磁性颗粒长时间显示出良好的充电能力，因此提供了良好的连续成像性能，因为它们由铁氧体颗粒形成，该铁氧体颗粒包括由以下通式表示的非常有限组成的铁素体：（MnO）x（MgO） y（Fe 2 O 3）z，其中x，y和z是满足x + y + z 1，0.2

48. 发明授权

US5995786A Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US5995786A
公开(公告)日：1999-11-30
申请号：US37970
申请日：1998-03-11
申请人： Nobuyuki Ito
发明人： Nobuyuki Ito
IPC分类号： G03G15/02 , G03G15/08 , G03G15/24
CPC分类号： B82Y15/00 , G03G15/0241 , G03G15/0815 , G03G2215/022
摘要： An image forming apparatus includes an image bearing member; a charger for charging the image bearing member, the charger including a magnetic brush including magnetic particles contacted to the image bearing member; a developing device for developing an electrostatic image on the image bearing member, wherein the developing device includes a developer carrying member which is press-contacted to the image bearing member, and is movable in a direction opposite from a movement direction of the image bearing member at a portion where they are press-contacted to each other.
摘要翻译：图像形成装置包括：图像承载部件; 用于对图像承载部件充电的充电器，充电器包括磁刷，该磁刷包括与图像承载部件接触的磁性颗粒; 用于在图像承载部件上显影静电图像的显影装置，其中显影装置包括与图像承载部件压接的显影剂承载部件，并且能够沿与图像承载部件的移动方向相反的方向移动在它们彼此压力接触的部分。

49. 发明授权

US5940662A Charging apparatus and electrophotographic apparatus 失效
标题翻译：充电设备和电子照相设备
公开(公告)号：US5940662A
公开(公告)日：1999-08-17
申请号：US801921
申请日：1997-02-14
申请人： Yoshifumi Hano , Shuichi Aita , Tsutomu Kukimoto , Tsuyoshi Takiguchi , Fumihiro Arahira , Yuji Ishihara , Kiyoshi Mizoe
发明人： Yoshifumi Hano , Shuichi Aita , Tsutomu Kukimoto , Tsuyoshi Takiguchi , Fumihiro Arahira , Yuji Ishihara , Kiyoshi Mizoe
IPC分类号： G03G15/02
CPC分类号： G03G15/0241 , G03G2215/022
摘要： A charging apparatus which comprises an electrophotographic photosensitive member and a charging member which comprises magnetic particles and placed in contact with the electrophotographic photosensitive member to charge the electrophotographic photosensitive member upon application of a voltage, wherein each magnetic particle has a surface layer containing a polyolefin resin of which weight average molecular weight is 10,000 or more, and has a volume resistivity of 1.times.10.sup.4 to 1.times.10.sup.11 .OMEGA.cm.
摘要翻译：一种充电装置，其包括电子照相感光构件和充电构件，所述充电构件包括磁性颗粒并与电子摄影感光构件接触以在施加电压时对电子照相感光构件充电，其中每个磁性颗粒具有含有聚烯烃树脂的表面层其重均分子量为10,000以上，体积电阻率为1×10 14〜1×10 11欧米高。

50. 发明授权

US5895146A Charging device and image forming apparatus 失效
标题翻译：充电装置及成像装置
公开(公告)号：US5895146A
公开(公告)日：1999-04-20
申请号：US780683
申请日：1997-01-08
申请人： Kenichiro Waki , Masahiro Itoh , Ryo Inoue
发明人： Kenichiro Waki , Masahiro Itoh , Ryo Inoue
IPC分类号： G03G15/02 , G03G21/00 , G03G15/09
CPC分类号： G03G15/0241 , G03G21/0064 , G03G2215/022 , G03G2221/0005
摘要： An image forming apparatus includes a charging device applies a voltage to charge an image bearing member. The charging device is provided with a charging means to which a voltage is applicable to charge said image bearing member, said charging means being provided with a magnetic particle carrying member for carrying and conveying a magnetic particle layer contacting with said image bearing member during the charging operation; a container contains magnetic particles therein; and a replacing device replaces the magnetic particles carried on the magnetic particle carrying member with the magnetic particles contained in the container. A developer develops a latent image produced on the image bearing member by the charging device using a toner to produce a toner image. A transferring device transfers the toner image from the image bearing member simultaneously with developing of the latent image without using a cleaner member after transferring by said transferring device and before charging by said charging device.
摘要翻译：图像形成装置包括充电装置施加电压以对图像承载部件充电。充电装置设置有充电装置，电压可应用于充电所述图像承载部件，所述充电装置设置有用于在充电期间承载和输送与所述图像承载部件接触的磁性颗粒层的磁性颗粒承载部件操作; 容器中含有磁性颗粒; 并且替换装置用容纳在容器中的磁性颗粒代替携带在磁性颗粒承载构件上的磁性颗粒。显影剂通过使用调色剂的充电装置显影在图像承载部件上产生的潜像，以产生调色剂图像。传送装置在通过所述传送装置传送之后并且在由所述充电装置充电之前，不会使用清洁器构件，同时从图像承载部件转印调色剂图像，同时显影潜像。

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