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1. 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。

2. 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。

3. 发明授权

US5678143A 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：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。

4. 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。

5. 发明授权

US5530528A Image forming apparatus having contact type, one-component developing unit 失效
标题翻译：具有接触型，单组分显影单元的图像形成装置
公开(公告)号：US5530528A
公开(公告)日：1996-06-25
申请号：US103807
申请日：1993-08-10
申请人： Yoji Houki , Makoto Matsuoka , Takeo Kojima , Akira Takahashi , Mitsuhito Furukawa , Hiroshi Kera
发明人： Yoji Houki , Makoto Matsuoka , Takeo Kojima , Akira Takahashi , Mitsuhito Furukawa , Hiroshi Kera
IPC分类号： G03G15/08 , G03G21/00
CPC分类号： G03G15/0806 , G03G15/0856 , G03G15/0862
摘要： An image forming apparatus having a developing unit for developing an electrostatic latent image on a photosensitive drum with a one-component toner, consisting of an endless latent image carrier; an image forming unit for forming an electrostatic latent image on the image carrier; a developing unit, for causing the developing roller to contact the image carrier to develop the electrostatic latent image on the image carrier; a mechanism for driving the developing unit; a toner sensor for detecting the presence/absence of the toner in the developing unit; and an abutting/detaching mechanism for abutting or detaching the developing roller of the developing unit on or from the image carrier. According to one aspect of this invention, this apparatus further has a controller for executing an image forming mode to control image formation in response to an image forming instruction, and a developer supply mode for, with the developing roller set apart from the image carrier, driving the driving mechanism to supply the toner to the developing roller in accordance with an output of the toner sensor indicating an insufficient amount of the toner.
摘要翻译：一种图像形成装置，具有显影单元，用于利用由无限潜像载体构成的单组分调色剂在感光鼓上显影静电潜像; 图像形成单元，用于在所述图像载体上形成静电潜像; 显影单元，用于使显影辊接触图像载体以在图像载体上显影静电潜像; 用于驱动显影单元的机构; 用于检测显影单元中调色剂的存在/不存在的调色剂传感器; 以及用于将显影单元的显影辊抵接或分离在图像载体上或从图像载体上脱离的抵接/分离机构。根据本发明的一个方面，该装置还具有控制器，用于执行图像形成模式以响应于图像形成指令来控制图像形成;以及显影剂供应模式，其中显影辊与图像载体分离，驱动驱动机构以根据调色剂传感器的输出将调色剂供应到显影辊，该输出指示调色剂的量不足。

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