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1. 发明授权

US5396026A Magnetic brush developing apparatus 失效
标题翻译：磁刷显影装置
公开(公告)号：US5396026A
公开(公告)日：1995-03-07
申请号：US127594
申请日：1993-09-28
申请人： Kunihiko Sato , Sachio Sasaki , Akira Nagahara , Shin Araki , Hideaki Iwasaki , Kenji Fuke , Futoshi Okabayashi , Takamasa Araki
发明人： Kunihiko Sato , Sachio Sasaki , Akira Nagahara , Shin Araki , Hideaki Iwasaki , Kenji Fuke , Futoshi Okabayashi , Takamasa Araki
IPC分类号： G03G15/09
CPC分类号： G03G15/09 , G03G15/0921
摘要： A magnetic brush developing apparatus, comprising: a development container (102) for containing a developer; a magnet (122) stationarily located in the development container and having magnetic poles radially provided on a plurality of points; a rotational sleeve (121) arranged to cover the outer circumference of the magnet and rotatably driven to carry the developer in the development container to an image carrying body (131); and a blade (123) arranged opposite to the sleeve to restrict the amount of the developer which is carried by the sleeve. Two of the magnetic poles are a developing magnetic pole (Pd) facing opposite to the image carrying body (131) and a developer transfer magnetic pole (Pt) located between the developing magnetic pole (Pd) and the blade (123). A magnetic brush of the developer formed on the sleeve (121) by the developer carrying magnetic pole (Pt) has a magnetic flux density. A width or angle of a region where a radial component of the magnetic flux density exceeds over a half of a maximum value thereof, i.e., a half value width, is determined in such a manner that the developer is prevented from flying away from the magnetic brush.
摘要翻译：一种磁刷显影装置，包括：用于容纳显影剂的显影容器（102）; 固定地位于显影容器中并具有径向设置在多个点上的磁极的磁体（122）; 旋转套筒（121），被布置成覆盖所述磁体的外周并被可旋转地驱动以将显影容器中的显影剂运送到图像承载体（131）; 以及与所述套筒相对设置的用于限制由所述套筒承载的显影剂的量的刀片（123）。两个磁极是与图像承载体（131）相对的显影磁极（Pd）和位于显影磁极（Pd）和叶片（123）之间的显影剂转移磁极（Pt）。由承载磁极（Pt）的显影剂在套筒（121）上形成的显影剂的磁刷具有磁通密度。磁通密度的径向分量超过其最大值的一半的区域（即，半值宽度）的宽度或角度被确定为使得显影剂不被远离磁体刷。

2. 发明授权

US5424489A Magnetic brush developing apparatus 失效
标题翻译：磁刷显影装置
公开(公告)号：US5424489A
公开(公告)日：1995-06-13
申请号：US253610
申请日：1994-06-03
申请人： Kunihiko Sato , Sachio Sasaki , Akira Nagahara , Shin Araki , Hideaki Iwasaki
发明人： Kunihiko Sato , Sachio Sasaki , Akira Nagahara , Shin Araki , Hideaki Iwasaki
IPC分类号： G03G15/09
CPC分类号： G03G15/09 , G03G15/0921
摘要： A magnetic brush developing apparatus includes a development container containing a developer. A magnet is stationarily located in the development container and has magnetic poles radially provided on a plurality of points. A rotational sleeve is arranged to cover the outer circumference of the magnet and is rotatably driven to carry the developer in the development container. A blade is arranged opposite to the rotational sleeve to restrict the amount of the developer which is carried by the rotational sleeve. To obtain a uniform image quality without unevenness among different developing apparatus and a wider range of assembling precision to thus facilitate the installment of the apparatus, at a position facing the developer restriction member, and in its vicinity, there is formed a uniform magnetic flux density section having a magnetic flux density whose vertical component is substantially uniform on the periphery of the rotational sleeve.
摘要翻译：磁刷显影装置包括含有显影剂的显影容器。磁体固定地位于显影容器中，并且具有径向设置在多个点上的磁极。旋转套筒布置成覆盖磁体的外周并被可旋转地驱动以将显影剂携带在显影容器中。刀片与旋转套筒相对设置，以限制由旋转套筒承载的显影剂的量。为了在不同的显影装置之间获得均匀的图像质量而不具有不均匀性，并且更宽的组装精度范围，从而便于装置的安装，在面向显影剂限制部件的位置处，并且在其附近形成均匀的磁通密度截面具有在旋转套筒的周边上的垂直分量基本均匀的磁通密度。

3. 发明授权

US5200784A Transferring device controlled for preventing the leading edge of a sheet from being excessively charged 失效
标题翻译：被控制的传送装置防止纸张的前缘过度带电
公开(公告)号：US5200784A
公开(公告)日：1993-04-06
申请号：US774377
申请日：1991-10-10
申请人： Masatoshi Kimura , Sachio Sasaki , Hideaki Iwasaki , Kunihiko Sato , Masao Konishi , Akiyoshi Iwamasa , Toshio Tooda , Hiroshi Nou , Shigenobu Utaka , Ryo Kitao
发明人： Masatoshi Kimura , Sachio Sasaki , Hideaki Iwasaki , Kunihiko Sato , Masao Konishi , Akiyoshi Iwamasa , Toshio Tooda , Hiroshi Nou , Shigenobu Utaka , Ryo Kitao
IPC分类号： G03G15/16
CPC分类号： G03G15/1645
摘要： A toner image transferring device is applied to, for example, an electrophotographic printer for electrostatically transferring a charged toner image from a photosensitive drum to a sheet or paper. The device encompasses a transfer charger disposed near the drum to form a clearance therebetween for feeding an electric charge to the sheet or paper through which the sheet or paper is passed, an electric source for supplying an electric energy to the transfer charger to give the sheet or paper an electric charge having a polarity opposite to that of the charge of the toner image, and a controller for controlling the electric energy output from the electric source the transfer charger so that a leading edge of the sheet or paper can be prevented from being excessively charged.
摘要翻译：将调色剂图像转印装置应用于例如用于将带电调色剂图像从感光鼓静电转印到片材或纸张上的电子照相打印机。该装置包括设置在滚筒附近的转印充电器，以在其间形成间隙，以将电荷馈送到片材或纸张通过该片材或纸张;电源，用于向转印充电器供应电能以给予片材或者印刷具有与调色剂图像的电荷的极性相反的极性的电荷;以及控制器，用于控制从电源输出的转移充电器的电能，使得可以防止片材或纸张的前缘成为过度收费

4. 发明授权

US5572299A Developing device using two-component developer 失效
标题翻译：使用双组分显影剂开发设备
公开(公告)号：US5572299A
公开(公告)日：1996-11-05
申请号：US084277
申请日：1993-07-08
申请人： Makoto Kato , Sachio Sasaki , Shin Araki , Kunihiko Sato , Naoyuki Fujimoto
发明人： Makoto Kato , Sachio Sasaki , Shin Araki , Kunihiko Sato , Naoyuki Fujimoto
IPC分类号： G03G15/08 , G03G15/09 , G03G15/06
CPC分类号： G03G15/09 , G03G15/0822 , G03G2215/0822
摘要： A developing device has a vessel for holding a two-component developer composed of a toner component and a magnetic component. A magnetic roller is rotatably provided within the vessel to bring the developer to a developing zone for a development of an electrostatic latent image. An agitator also is provided within the vessel for agitating and circulating the developer to cause a triboelectrifiction between the toner component and the magnetic component and a uniform distribution of the toner component in the magnetic component. The agitator is arranged to present a uniform density mass of the developer to the magnetic roller for ensuring an even development of the latent image.
摘要翻译： PCT No.PCT / JP92 / 01452 Sec。 371日期：1993年7月8日 102（e）日期1993年7月8日PCT 1991年11月9日PCT公布。公开号WO93 / 09475 日期1993年5月13日显影装置具有用于保持由调色剂组分和磁性组分组成的双组分显影剂的容器。磁性辊可转动地设置在容器内，以将显影剂带到显影区，用于显影静电潜像。还在容器内设置搅拌器，用于搅拌和循环显影剂以引起调色剂组分和磁性组分之间的摩擦电流以及调色剂组分在磁性组分中的均匀分布。搅拌器布置成将均匀的密度的显影剂质量呈现给磁辊，以确保潜像的均匀显影。

5. 发明授权

US5852757A Electrophotographic image forming apparatus having a device for recovering residual toner 失效
标题翻译：具有用于回收残留调色剂的装置的电子照相图像形成装置
公开(公告)号：US5852757A
公开(公告)日：1998-12-22
申请号：US680959
申请日：1996-07-16
申请人： Toshio Tooda , Yoshio Yamaguchi , Nobuo Kuwabara , Mituru Sato , Haruyasu Watanabe , Akira Nagahara , Sachio Sasaki , Yoshiya Ishiyama , Hiroshi Kera , Masanori Nishido , Hisashi Hanzawa
发明人： Toshio Tooda , Yoshio Yamaguchi , Nobuo Kuwabara , Mituru Sato , Haruyasu Watanabe , Akira Nagahara , Sachio Sasaki , Yoshiya Ishiyama , Hiroshi Kera , Masanori Nishido , Hisashi Hanzawa
IPC分类号： G03G15/08 , G03G21/10 , G03G15/00 , G03G21/00
CPC分类号： G03G15/0822 , G03G21/105
摘要： An electrophotographic image forming apparatus including a toner circulating mechanism for recovering a residual toner scraped from a photosensitive drum to a developing device. The developing device includes a housing for defining a toner chamber, a developing roller rotatably mounted in the housing, an agitator rotatably mounted in the housing and provided in the toner chamber, and a partition member mounted to the housing to define a carrier chamber between the partition member and the developing roller. The toner circulating mechanism directly returns the residual toner scraped from the photosensitive drum to the toner chamber in the developing device. The toner chamber may contain a foreign matter removing device. The partition member may have various shapes.
摘要翻译：一种电子照相图像形成装置，包括调色剂循环机构，用于将从感光鼓刮下的残余调色剂回收到显影装置。显影装置包括用于限定调色剂室的壳体，可旋转地安装在壳体中的显影辊，可旋转地安装在壳体中并设置在调色剂室中的搅拌器，以及安装到壳体上以在其间形成载体室的分隔构件分隔构件和显影辊。调色剂循环机构将从感光鼓刮下的残留调色剂直接返回到显影装置中的调色剂室。调色剂室可以含有异物去除装置。分隔构件可以具有各种形状。

6. 发明授权

US5572298A Image forming apparatus having a developing apparatus which includes a partition member for partitioning a developing room and a toner hopper 失效
标题翻译：具有显影装置的图像形成装置包括用于分隔显影室的分隔部件和调色剂料斗
公开(公告)号：US5572298A
公开(公告)日：1996-11-05
申请号：US400561
申请日：1995-03-08
申请人： Akira Nagahara , Sachio Sasaki , Mitsuru Sato , Shigenobu Utaka , Takefumi Takahashi , Masahiro Wanou , Masao Konishi
发明人： Akira Nagahara , Sachio Sasaki , Mitsuru Sato , Shigenobu Utaka , Takefumi Takahashi , Masahiro Wanou , Masao Konishi
IPC分类号： G03G15/00 , G03G15/08 , G03G15/09
CPC分类号： G03G15/00 , G03G15/0896 , G03G2215/00012 , G03G2215/0609
摘要： Disclosed is an image forming apparatus capable of performing an image forming operation in both a horizontal position and an upright position. This image forming apparatus comprises a rotary endless latent image carrier; image forming unit for forming an electrostatic latent image on the latent image carrier; developing unit for developing the electrostatic latent image on the latent image carrier with a powdery developer, the developing unit having a developing room, developing rollers provided in the developing room for supplying the powdery developer to the latent image carrier, a toner supply room for supplying toners, toner supply roller provided in the toner supply room and rotatable to supply the toners to the developing room, and a partition member for partitioning the developing room and the toner supply room and forming a toner supply passage for supplying the toners to the developing room; and transfer unit for transferring the developed image on the latent image carrier to a sheet.
摘要翻译：公开了一种能够在水平位置和直立位置进行图像形成操作的图像形成装置。该图像形成装置包括旋转式无端潜像载体; 图像形成单元，用于在潜像载体上形成静电潜像; 显影单元，用于用粉末状显影剂在潜像载体上显影静电潜像，显影单元具有显影室，设置在显影室中的显影辊，用于将粉状显影剂供应给潜像载体;调色剂供应室，用于供应调色剂，调色剂供应辊，设置在调色剂供应室中并可旋转以将调色剂供应到显影室;以及分隔构件，用于分隔显影室和调色剂供应室，并形成调色剂供应通道，用于将调色剂供应到显影室 ; 以及用于将潜像载体上的显影图像转印到片材上的转印单元。

7. 发明授权

US5845184A Developing unit having improved toner density control 失效
标题翻译：显影单元具有改进的调色剂浓度控制
公开(公告)号：US5845184A
公开(公告)日：1998-12-01
申请号：US220436
申请日：1994-03-30
申请人： Akira Nagahara , Yoshio Yamaguchi , Shigenobu Utaka , Toshio Tooda , Haruyasu Watanabe , Sachio Sasaki , Mitsuhito Furukawa , Mitsuru Sato , Nobuo Kuwabara , Takefumi Takahashi
发明人： Akira Nagahara , Yoshio Yamaguchi , Shigenobu Utaka , Toshio Tooda , Haruyasu Watanabe , Sachio Sasaki , Mitsuhito Furukawa , Mitsuru Sato , Nobuo Kuwabara , Takefumi Takahashi
IPC分类号： G03G9/083 , G03G15/08 , G03G15/09
CPC分类号： G03G15/09 , G03G15/0896 , G03G2215/00012 , G03G2215/0609
摘要： A developing apparatus is provided for developing an electrostatic latent image on a latent image carrier by supplying the latent image carrier with a developer. This developing apparatus includes a toner accommodating chamber for accommodating magnetic toners. The apparatus also includes a developing roller, having a plurality of fixed magnetic pole members and sleeves provided along peripheries of the fixed magnetic pole members and rotating thereabout, for feeding the developer composed of magnetic carriers and magnetic toners to the latent image carrier. The apparatus further includes a developing chamber having a partition wall formed along the developing roller and assuming a configuration adapted to a shape of the developing roller, and a toner supply port for supplying the magnetic toners to the developing chamber from the toner accommodating chamber. In another mode of the developing apparatus, the center of each magnetic pole of the fixed magnetic pole members is located in a position deviating from the toner supply port. Further, in still another mode of the developing apparatus, there is employed the magnetic carrier the core of which is iron powder exhibiting strong saturation magnetization.
摘要翻译：提供一种显影装置，用于通过向潜像载体提供显影剂来使潜像载体上的静电潜像显影。该显影装置包括用于容纳磁性调色剂的调色剂容纳室。该装置还包括一个显影辊，具有多个固定磁极件和沿固定磁极件的周边设置并在其周围旋转的套筒，用于将由磁性载体和磁性调色剂构成的显影剂供给潜像载体。该装置还包括具有沿着显影辊形成的分隔壁并具有适于显影辊形状的分隔壁的显影室和用于从调色剂容纳室将磁性调色剂供应到显影室的调色剂供给口。在显影装置的另一种模式中，固定磁极件的每个磁极的中心位于偏离调色剂供给口的位置。此外，在显影装置的另一种模式中，使用磁性载体，其核心是呈现强饱和磁化强度的铁粉。

8. 发明授权

US5448341A Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US5448341A
公开(公告)日：1995-09-05
申请号：US220096
申请日：1994-03-30
申请人： Akira Nagahara , Sachio Sasaki , Mitsuru Sato , Shigenobu Utaka , Takefumi Takahashi , Masahiro Wanou , Masao Konishi
发明人： Akira Nagahara , Sachio Sasaki , Mitsuru Sato , Shigenobu Utaka , Takefumi Takahashi , Masahiro Wanou , Masao Konishi
IPC分类号： G03G15/00 , G03G15/08 , G03G15/09 , G03G21/00
CPC分类号： G03G15/00 , G03G15/0896 , G03G2215/00012 , G03G2215/0609
摘要： Disclosed is an image forming apparatus capable of performing an image forming operation in both a horizontal position and an upright position. This image forming apparatus comprises a rotary endless latent image carrier; image forming unit for forming an electrostatic latent image on the latent image carrier; developing unit for developing the electrostatic latent image on the latent image carrier with a powdery developer, the developing unit having a developing room, a developing roller provided in the developing room for supplying the powdery developer to the latent image carrier, a toner supply room for supplying toners, toner supply roller provided in the toner supply room and rotatable to supply the toners to the developing room, and a partition member for partitioning the developing room and the toner supply room and forming a toner supply passage for supplying the toners to the developing room; and transfer unit for transferring the developed image on the latent image carrier to a sheet.
摘要翻译：公开了一种能够在水平位置和直立位置进行图像形成操作的图像形成装置。该图像形成装置包括旋转式无端潜像载体; 图像形成单元，用于在潜像载体上形成静电潜像; 显影单元，其用粉状显影剂在潜像载体上显影静电潜像，显影单元具有显影室;显影辊，设置在显影室中，用于将粉状显影剂供应到潜像载体;调色剂供应室，用于提供调色剂，设置在调色剂供应室中的调色剂供给辊，并且可旋转地将调色剂供应到显影室;以及分隔构件，用于分隔显影室和调色剂供应室，并形成调色剂供应通道，用于将调色剂供应到显影房间; 以及用于将潜像载体上的显影图像转印到片材上的转印单元。

9. 发明授权

US5778285A Image forming apparatus for collecting residual toner from a drum using an AC voltage 失效
标题翻译：图像形成装置，用于使用AC电压从滚筒收集残留调色剂
公开(公告)号：US5778285A
公开(公告)日：1998-07-07
申请号：US874714
申请日：1997-06-13
申请人： Akira Nagahara , Sachio Sasaki , Mitsuhito Furukawa , Shigenobu Utaka , Yoshio Yamaguchi , Mitsuru Sato , Nobuo Kuwabara , Haruyasu Watanabe , Takefumi Takahashi
发明人： Akira Nagahara , Sachio Sasaki , Mitsuhito Furukawa , Shigenobu Utaka , Yoshio Yamaguchi , Mitsuru Sato , Nobuo Kuwabara , Haruyasu Watanabe , Takefumi Takahashi
IPC分类号： G03G21/10 , G03G15/08 , G03G21/00 , G03G21/06 , G03G15/24
CPC分类号： G03G21/0005 , G03G21/0064 , G03G2215/0609 , G03G2221/0005 , G03G2221/0042 , G03G2221/0063 , G03G2221/0089
摘要： An image forming apparatus which collects residual toners on a latent image carrier in a developing unit. The image forming apparatus have a rotary endless latent image carrier; an image forming unit for forming an electrostatic latent image on the latent image carrier; a developing unit for developing the electrostatic latent image on the latent image carrier with a powdery developer and collecting residual toners on the latent image carrier at a same time; a transfer unit for transferring the developed image on the latent image carrier onto a sheet; a distribution member for distributing residual toners on the latent image carrier when in contact with the latent image carrier after image transfer; and a voltage supplying unit for supplying an AC voltage to the distribution member. An image forming apparatus according to another aspect have a rotary endless latent image carrier; an image forming unit for forming an electrostatic latent image on the latent image carrier; a developing unit for developing the electrostatic latent image on the latent image carrier with a powdery developer and collecting residual toners on the latent image carrier at a same time; a transfer unit for transferring the developed image on the latent image carrier onto a sheet; and a distribution roller for distributing residual toners on the latent image carrier when in contact with the latent image carrier after image transfer.
摘要翻译：一种在显影单元中的潜像载体上收集残留调色剂的图像形成装置。图像形成装置具有旋转式无端潜像载体; 用于在潜像载体上形成静电潜像的图像形成单元; 显影单元，用于用粉末显影剂在潜像载体上显影静电潜像，同时在潜像载体上收集残留的调色剂; 转印单元，用于将潜像载体上的显影图像转印到纸上; 分配构件，用于在图像转印之后与潜像载体接触时将残留调色剂分配在潜像载体上; 以及用于向分配构件提供AC电压的电压提供单元。根据另一方面的图像形成装置具有旋转环形潜像载体; 用于在潜像载体上形成静电潜像的图像形成单元; 显影单元，用于用粉末显影剂在潜像载体上显影静电潜像，同时在潜像载体上收集残留的调色剂; 转印单元，用于将潜像载体上的显影图像转印到纸上; 以及分配辊，用于在图像转印之后与潜像载体接触时将残留调色剂分配在潜像载体上。

10. 发明授权

US5587774A Cleanerless electrographic imaging device 失效
标题翻译：无清洁电子照相成像装置
公开(公告)号：US5587774A
公开(公告)日：1996-12-24
申请号：US434991
申请日：1995-05-04
申请人： Akira Nagahara , Sachio Sasaki , Mitsuhito Furukawa , Tsuneo Watanuki , Norio Sawatari , Mikio Amaya , Toshiaki Narusawa
发明人： Akira Nagahara , Sachio Sasaki , Mitsuhito Furukawa , Tsuneo Watanuki , Norio Sawatari , Mikio Amaya , Toshiaki Narusawa
IPC分类号： G03G15/02 , G03G15/08 , G03G15/16 , G03G21/00 , G03G21/10
CPC分类号： G03G15/0216 , G03G21/0064 , G03G2215/0609 , G03G2221/0005 , G03G2221/0042 , G03G2221/0063 , G03G2221/0089
摘要： An imaging device for use in an electrographic imaging process, without a cleaning unit for residual toners, which comprises an image-carrying element, an image exposure means, a developing means, an image transfer means, and a distribution roller means of an elastic and electrically conductive material for uniformly distributing the residual toners over a surface of the image-carrying element and at the same time deelectrifying and recharging the same surface of said element. The imaging device has a simplified and compact structure and does not cause an environmental pollution problem due to the generation of ozone in the device.
摘要翻译：一种用于电摄影成像过程的成像装置，其不包括用于残留调色剂的清洁单元，其包括图像承载元件，图像曝光装置，显影装置，图像转印装置和分配辊装置，用于将残留调色剂均匀分布在图像承载元件的表面上并同时对所述元件的相同表面进行去电和再充电的导电材料。成像装置具有简化且紧凑的结构，并且不会由于装置中的臭氧的产生而引起环境污染问题。

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