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。

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。

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。

公开(公告)号：US5678143A

公开(公告)日：1997-10-14

申请号：US220208

申请日：1994-03-30

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 ,  G03G15/00

CPC分类号： G03G21/0005 ,  G03G21/0064 ,  G03G2215/0609 ,  G03G2221/0005 ,  G03G2221/0042 ,  G03G2221/0063 ,  G03G2221/0089

摘要： An image forming apparatus for forming an image on a sheet, including a rotary endless latent image carrier, an image forming device for forming an electrostatic latent image on a latent image carrier, a developing device for developing the electrostatic latent image on the latent image carrier with powdery developers and collecting residual toners on the latent image carrier at the same time, a transfer device for transferring a developed image on the latent image carrier onto a sheet, a distribution roller having independent foam perforations for distributing residual toners on the latent image carrier when in contact with the latent image carrier after image transfer, and a power supply for supplying an AC voltage to the distribution member. The distribution member is made of a conductive foam member having a pore at a surface contacting with the latent image carrier and the roller rotates in a direction opposite to a rotational direction of the latent image carrier at a peripheral velocity of 1.1 to 1.5 times that of the latent image carrier.

摘要翻译： 一种用于在片材上形成图像的图像形成装置，包括旋转环形潜像载体，用于在潜像载体上形成静电潜像的图像形成装置，用于在潜像载体上显影静电潜像的显影装置 与粉状显影剂同时在潜像载体上收集残留调色剂，用于将潜影载体上的显影图像转印到片材上的转印装置，具有独立泡沫穿孔的分配辊，用于在潜像载体上分配残留调色剂 在图像转印之后与潜像载体接触时，以及用于向分配构件提供AC电压的电源。 分配构件由导电泡沫构件制成，其在与潜像载体接触的表面处具有孔，并且辊以与潜像载体的旋转方向相反的方向以与潜像载体的旋转方向相反的方向旋转，圆周速度为 潜像载体。

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

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。

公开(公告)号：US6091921A

公开(公告)日：2000-07-18

申请号：US291209

申请日：1999-04-14

申请人： Kunihiko Sato ,  Takefumi Takahashi ,  Sachio Sasaki ,  Nobuo Kuwabara

发明人： Kunihiko Sato ,  Takefumi Takahashi ,  Sachio Sasaki ,  Nobuo Kuwabara

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/09 ,  G03G15/0896

摘要： A developing device develops a latent image formed on a latent image holding body. The developing device includes a developing roller conveying, with rotation of the developing roller, developer adhered thereto to a developing area in which the latent image on the latent image holding body should be developed, the developer including toner and carriers, a limit member, provided so as to face the developing roller, limiting a height of a layer of the developer on the developing roller, a toner container storing the toner, a toner supply mechanism supplying the toner in the toner container to the developing roller, and a partition member forming a space between the partition member and the developing roller, the toner supplied from the toner container being moved in the space with rotation of the developing roller. The developing device further includes a developer leveling member provided on an upstream side of the space in a rotation direction of the developing roller, the developer leveling member leveling the developer, formed on the developing roller, which developer has passed through the developing area.

摘要翻译： 显影装置显影形成在潜像保持体上的潜像。 显影装置包括显影辊，显影辊将显影剂的转动粘附到显影区域上，显影区域中潜像保持体上的潜像应显影，包括调色剂和载体的显影剂，限定部件， 以便面对显影辊，限制显影辊上的显影剂层的高度，存储调色剂的调色剂容器，将调色剂容器中的调色剂供给到显影辊的调色剂供给机构和形成 分隔构件和显影辊之间的空间，从调色剂容器供应的调色剂随着显影辊的转动而在空间中移动。 显影装置还包括显影剂调平构件，其在显影辊的旋转方向上设置在空间的上游侧，显影剂调平构件使显影剂已经通过显影区域的显影辊上形成的显影剂调平。

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。

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。

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。