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1. 发明授权

US4912513A Developing apparatus with variable developing bias voltage 失效
标题翻译：具有可变显影偏压的显影装置
公开(公告)号：US4912513A
公开(公告)日：1990-03-27
申请号：US214644
申请日：1988-07-01
申请人： Tateki Oka , Naoki Toyoshi , Tomoaki Yokoyama
发明人： Tateki Oka , Naoki Toyoshi , Tomoaki Yokoyama
IPC分类号： G03G15/09
CPC分类号： G03G15/09 , G03G15/0907
摘要： A copying apparatus in which a developing bias voltage to be applied to a developing sleeve by a power source is changed to adjust the density of a reproduced image, while the electric potential difference between the developing sleeve and a toner supply roller is kept constant. As a result, a density of toner on the developing sleeve is kept constant. Therefore, a development is effected under the condition in which the density of the toner is constant, so that the tone of the image of an original document is reproduced in a desired density.
摘要翻译：在显影套筒和调色剂供给辊之间的电位差保持恒定的同时改变要通过电源施加到显影套筒的显影偏压被改变以调节再现图像的浓度的复印设备。结果，显影套筒上的调色剂密度保持恒定。因此，在调色剂的浓度恒定的条件下进行显影，使得原稿的图像的色调以期望的浓度再现。

2. 发明授权

US4785331A Electrophotographic copying method and apparatus 失效
标题翻译：电子照相复印方法和装置
公开(公告)号：US4785331A
公开(公告)日：1988-11-15
申请号：US117836
申请日：1987-11-09
申请人： Tateki Oka , Naoki Toyoshi , Tomoaki Yokoyama
发明人： Tateki Oka , Naoki Toyoshi , Tomoaki Yokoyama
IPC分类号： G03G15/00 , G03G15/045 , G03G15/08 , G03G15/06
CPC分类号： G03G15/045 , G03G15/0849 , G03G15/5041 , G03G2215/00042
摘要： An electrophotographic copying apparatus is capable of forming outline images. It comprises a first charging device, an exposing device, a second charging device and a developing device along a moving direction of a photoconductor. A sensor detects an amount of toner adhering to a reference image formed on the surface of the photoconductor. Supply of toner is controlled based on the detected amount. In an outline image forming mode, an amount of toner to be supplied is set to a value smaller than an amount in a standard image forming mode.
摘要翻译：电子照相复印装置能够形成轮廓图像。其包括沿着感光体的移动方向的第一充电装置，曝光装置，第二充电装置和显影装置。传感器检测附着在形成在感光体的表面上的参考图像的调色剂的量。基于检测到的量控制调色剂的供应。在轮廓图像形成模式中，要供给的调色剂量被设定为小于标准图像形成模式的量的值。

3. 发明授权

US4627716A Toner handling apparatus for electro-photographic copying machines 失效
标题翻译：电子照相复印机的调色剂处理设备
公开(公告)号：US4627716A
公开(公告)日：1986-12-09
申请号：US638716
申请日：1984-08-08
申请人： Tateki Oka
发明人： Tateki Oka
IPC分类号： G03G15/08 , G03G21/12 , G03G21/18 , G03G21/00
CPC分类号： G03G21/1832 , G03G15/0898 , G03G21/12 , G03G2221/1618 , G03G2221/1648 , G03G2221/1669 , G03G2221/183
摘要： A toner handling apparatus for use in transfer-type electrophotographic copying machines, such as a toner collecting container for accommodating the toner collected from a photoconductive member by a cleaner, or an image forming unit which includes the photoconductive member and a copying element (developing device and/or cleaner) disposed around the photoconductive member and adapted to accommodate a developer therein and which is removably installable in its entirety in the main body of the copying machine, which is provided in its opening with a thermally expandable resin and a heater for expanding the resin. The resin, which is unexpanded, expands to a thickness several times to several tens of times as large as the original thickness when heated to the expanding temperature and becomes adhesive upon expansion. When the resin is heated by the heater the opening of the toner handling apparatus is sealed off, whereby the toner handling apparatus can be replaced by a new one, without permitting scattering of the toner through its opening.
摘要翻译：用于转印型电子照相复印机的调色剂处理装置，例如用于容纳由感光体由感光体收集的调色剂的调色剂收集容器或包括感光体和图像形成单元的复印元件（显影装置和/或清洁器），其设置在感光体周围并且适于容纳其中的显影剂，并且其整体可拆卸地安装在复印机的主体中，复印机在其开口中设置有热膨胀树脂和用于扩展的加热器树脂。未膨胀的树脂在加热至膨胀温度时膨胀至初始厚度的几十倍至几十倍的厚度，并且在膨胀时变得粘合。当树脂被加热器加热时，调色剂处理装置的开口被密封，由此调色剂处理装置可以被新的调色剂处理装置替代，而不允许调色剂通过其开口散开。

4. 发明授权

US4514480A Method of controlling toner concentration for electrophotographic copying apparatus 失效
标题翻译：控制电子照相复印装置的调色剂浓度的方法
公开(公告)号：US4514480A
公开(公告)日：1985-04-30
申请号：US503776
申请日：1983-06-13
申请人： Kenichi Wada , Tateki Oka , Kenji Tabuchi
发明人： Kenichi Wada , Tateki Oka , Kenji Tabuchi
IPC分类号： G03G15/08 , G03G13/09
CPC分类号： G03G15/0849 , G03G15/0853
摘要： An improved method of controlling toner concentration for electrophotographic copying apparatus employing a dual component developing material which is composed of toner particles and magnetic particles. The method is arranged to detect the amount of magnetic particles adhering onto a photosensitive member for controlling the toner replenishing amount according to the amount of the magnetic particles thus detected.
摘要翻译：一种改进的使用由调色剂颗粒和磁性颗粒组成的双组分显影材料的电子照相复印设备的调色剂浓度的方法。该方法设置为根据所检测的磁性颗粒的量来检测粘附到感光构件上的磁性颗粒的量以控制调色剂补充量。

5. 发明授权

US4392735A Magnetic brush developing apparatus 失效
标题翻译：磁刷显影装置
公开(公告)号：US4392735A
公开(公告)日：1983-07-12
申请号：US265564
申请日：1981-05-20
申请人： Tateki Oka
发明人： Tateki Oka
IPC分类号： G03G15/09
CPC分类号： G03G15/09
摘要： A magnetic brush developing apparatus which has a developing sleeve rotatably driven in a specified direction, a magnetic roller provided within the developing sleeve and rotatably driven at a high speed in the same direction as the direction of rotation of the developing sleeve, and a scraper for scraping from the peripheral surface of the sleeve the magnetic developer conveyed along the surface thereof. The scraper is a thin metal plate and has a forward end portion shaped in the form of a circular arc having approximately the same curvature as the peripheral surface of the sleeve. The developer scraped off the sleeve surface is conveyed along the end portion of the scraper at a relatively high speed.
摘要翻译：一种磁刷显影装置，具有以指定方向可旋转地驱动的显影套筒，设置在显影套筒内并以与显影套筒的旋转方向相同的方向高速可转动地驱动的磁辊，以及用于从套筒的外周表面刮去磁性显影剂沿其表面传送。刮刀是薄金属板，并且具有成形为圆弧形状的前端部分，其具有与套筒的外周表面大致相同的曲率。从套筒表面刮掉的显影剂以较高的速度沿刮板的端部传送。

6. 发明授权

US5283615A Image forming apparatus having a plurality of developing devices 失效
标题翻译：具有多个显影装置的图像形成装置
公开(公告)号：US5283615A
公开(公告)日：1994-02-01
申请号：US595570
申请日：1990-10-11
申请人： Tomoaki Yokoyama , Tateki Oka , Kunio Toda
发明人： Tomoaki Yokoyama , Tateki Oka , Kunio Toda
IPC分类号： G03G15/01 , G03G15/08 , G03G15/06
CPC分类号： B82Y15/00 , G03G15/0126 , G03G15/0887
摘要： An image forming apparatus is provided with an optical system for forming a first electrostatic latent image and a second electrostatic latent image on a rotatable photosensitive member, a first developing device accommodating a first developer for developing the first electrostatic latent image, and a second developing device accommodating a second developer for developing the second electrostatic latent image. The second developing device is located downstream from the first developing device in a direction of rotation of the photosensitive member and is provided with a developing roller having a magnetic force. The second developer differs in color from the first developer and has a magnetism greater than the first developer. The second developer is transported to the second electrostatic latent image along a periphery of the developing roller. The image forming apparatus is further provided with a collector provided in the second developing device and having a collecting member confronting the developing roller. The first developer mixed in the second developer is moved toward and collected by the collecting member under the influence of an electric field formed between the collecting member and developing roller. Alternatively, the photosensitive member can act as a collector for collecting first developer mixed in the second developer.
摘要翻译：图像形成装置设置有用于在可旋转感光构件上形成第一静电潜像和第二静电潜像的光学系统，容纳用于显影第一静电潜像的第一显影剂的第一显影装置和第二显影装置容纳用于显影第二静电潜像的第二显影剂。第二显影装置沿着感光构件的旋转方向位于第一显影装置的下游，并且设置有具有磁力的显影辊。第二显影剂的颜色与第一显影剂不同，并且具有大于第一显影剂的磁性。第二显影剂沿着显影辊的周边输送到第二静电潜像。图像形成装置还设置有设置在第二显影装置中并具有面对显影辊的收集构件的收集器。混合在第二显影剂中的第一显影剂在收集构件和显影辊之间形成的电场的影响下移动并被收集构件收集。或者，感光构件可以用作收集器，用于收集混合在第二显影剂中的第一显影剂。

7. 发明授权

US5134444A Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US5134444A
公开(公告)日：1992-07-28
申请号：US699750
申请日：1991-05-14
申请人： Kenji Tabuchi , Tateki Oka , Hideyuki Kanbayashi
发明人： Kenji Tabuchi , Tateki Oka , Hideyuki Kanbayashi
IPC分类号： G03G15/01
CPC分类号： G03G15/0126
摘要： An image forming apparatus which develops two latent images formed on a photoreceptor with developing agents respectively containing first and second toners of different colors, and is so constructed that, a clear image is obtained by processing mixed-color separation to restrain the mixed-color as much as possible, in response to respective consumptions of a first toner and a second toner, or every time a fixed amount of first toner is consumed, and further, in response to the amount of first toner mixed into a second developing agent detected when a fixed amount of first toner is consumed.
摘要翻译：一种图像形成装置，其使用分别包含不同颜色的第一和第二调色剂的显影剂形成在感光体上的两个潜像，并且被构造成通过加工混合色分离来抑制混色，获得清晰的图像响应于第一调色剂和第二调色剂的相应消耗，或者每次消耗固定量的第一调色剂，并且进一步响应于混合到第二显影剂中的第一调色剂的量，当检测到固定量的第一调色剂被消耗。

8. 发明授权

US4835569A Electrophotographic copying machine for producing positive prints from both positive and negative originals 失效
标题翻译：电子照相复印机，用于从正反面原稿制作正版印刷品
公开(公告)号：US4835569A
公开(公告)日：1989-05-30
申请号：US90899
申请日：1987-08-31
申请人： Tateki Oka
发明人： Tateki Oka
IPC分类号： G03G15/08
CPC分类号： G03G15/08
摘要： The present invention relates to an electrophotographic copying machine which is capable of producing positive copies from both positive and negative originals. According to the invention, two units of developing apparatuses, each containing a toner with a polarity opposite to each other, are selectively mounted in position on the main body of the copying machine according to whether the copying is from positive to positive or from negative to positive so as to apply to the transfer charger a voltage with a polarity opposite to that of the toner.
摘要翻译：本发明涉及一种能够从正极和正负极原件产生阳性拷贝的电子照相复印机。根据本发明，根据复印机的正面或正面或从负面到复印机的复印机的主体，选择性地将两个显示装置中的每个包含彼此极性相反的调色剂的显影装置安置在复印机的主体上的适当位置为了向转印充电器施加极性与调色剂极性相反的电压。

9. 发明授权

US4792775A Method for the formation of outline images corresponding to the peripheral outlines of document's images 失效
标题翻译：用于形成对应于文档图像的外围轮廓的轮廓图像的方法
公开(公告)号：US4792775A
公开(公告)日：1988-12-20
申请号：US16717
申请日：1987-02-19
申请人： Tateki Oka , Naoki Toyoshi , Tomoaki Yokoyama
发明人： Tateki Oka , Naoki Toyoshi , Tomoaki Yokoyama
IPC分类号： G03G13/045 , G03G13/22 , G03G15/00
CPC分类号： G03G13/22 , G03G13/045
摘要： A method for forming an outline of an image. By this method, at first, an electrostatic latent image bearing member is charged and then irradiated to form an electrostatic latent image. Thereafter, the irradiated member is re-charged with a scorotron charger while applying a voltage to the scorotron grid, the voltage being slightly lower than the surface potential of the image portion of the latent image, and being substantially higher than the background potential of the latent image and being of the same polarity as that of the charging. By this re-charging, the outline portion of the image is given lower potential than the other portion. Then, the outline portion of the image with the lower potential is developed by a reversal development by using a toner charged to a polarity the same as the polarity of charging of the latent image bearing member.
摘要翻译：一种用于形成图像的轮廓的方法。通过该方法，首先，对静电潜像承载部件进行充电，然后照射以形成静电潜像。此后，将照射部件用灰火焰充电器再次施加电压到栅极栅极，该电压略低于潜像的图像部分的表面电位，并且显着高于该潜像的背景电位具有与充电相同极性的潜像。通过这种再充电，图像的轮廓部分被赋予比其他部分更低的电位。然后，通过使用充电到与潜像承载部件的充电极性相同的极性的调色剂，通过反转显影来显现具有较低电位的图像的轮廓部分。

10. 发明授权

US4659211A Copying apparatus 失效
标题翻译：复印机
公开(公告)号：US4659211A
公开(公告)日：1987-04-21
申请号：US719739
申请日：1985-04-03
申请人： Tateki Oka
发明人： Tateki Oka
IPC分类号： G03G13/09 , G03G15/08
CPC分类号： G03G15/08 , G03G13/09 , G03G15/0865 , G03G15/0877 , G03G15/0887
摘要： A copying apparatus capable of forming an electrostatic latent image in the form of a positive image and/or a negative image on a photosensitive member for obtaining a positive image copy by developing the electrostatic latent image, is characterized in that there are provided a first developing device for subjecting the electrostatic latent image to regular development through employment of a developing material composed of a mixture of electrically insulative toner, and carrier capable of triboelectrically charging the electrically insulative toner to a polarity opposite to that of the electrostatic latent image, and a second developing device for subjecting the electrostatic latent image to reversal development through employment of a developing material composed of a mixture of the same electrically insulative toner, and carrier capable of triboelectrically charging the electrically insulative toner to the same polarity as that of the electrostatic latent image.
摘要翻译：能够通过显影静电潜像来形成感光构件上的正像和/或负像的形式的静电潜像以获得正图像拷贝的复印装置的特征在于提供了第一显影通过使用由电绝缘性调色剂的混合物构成的显影材料和能够将电绝缘性调色剂摩擦充电到与静电潜像相反的极性的载体，使静电潜像经受正常显影的装置，以及第二通过使用由相同的电绝缘调色剂的混合物构成的显影材料和能够将静电潜像的电绝缘调色剂摩擦充电至极性的载体，使静电潜像经受静电潜像的显影装置。

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