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31. 发明申请

US20080145100A1 CLEANERLESS IMAGE FORMING APPARATUS 有权
标题翻译：无刷图像形成装置
公开(公告)号：US20080145100A1
公开(公告)日：2008-06-19
申请号：US11954309
申请日：2007-12-12
申请人： Yoshio SAKAGAWA , Tetsumaru Fujita , Yuji Nagatomo
发明人： Yoshio SAKAGAWA , Tetsumaru Fujita , Yuji Nagatomo
IPC分类号： G03G15/24 , G03G21/00
CPC分类号： G03G21/0035 , G03G21/0064
摘要： A cleanerless image forming apparatus capable of reducing the density unevenness of halftone images, comprising a photosensitive member; charging roller means for uniformly charging the surface of the photosensitive member; an optical writing unit which is not shown on the drawings, for forming latent images on the surface of the photosensitive member after uniform charging thereof; a developing device for developing the latent image on the photosensitive member to obtain a toner image; a transfer unit for transferring the toner image on the surface of the photosensitive member to an intermediate transfer belt; and a brush member for trapping post-transfer residual toner adhering to the surface of the photosensitive member after passing through the transfer process by the transfer unit and before entering the developing process by the developing device, wherein the post-transfer residual toner is recovered within the developing device after re-transfer of the post-transfer residual toner within the brush member to the surface of the photosensitive member, and the arithmetic mean surface roughness Ra of the photosensitive member is within the range 0.014 through 0.60 μm.
摘要翻译：一种能够减少包括感光构件的半色调图像的浓度不均匀的无清洁器成像装置; 充电辊装置，用于对感光构件的表面均匀充电; 在图中未示出的光学写入单元，用于在均匀充电之后在感光构件的表面上形成潜像; 用于在感光构件上显影潜像以获得调色剂图像的显影装置; 用于将感光构件的表面上的调色剂图像转印到中间转印带的转印单元; 以及用于在通过转印单元的转印过程之后并且在通过显影装置进入显影过程之前捕获粘附到感光构件的表面上的转印后残留调色剂的刷构件，其中转印后残留调色剂在在刷构件中的转印后残留调色剂重新转印到感光构件的表面之后的显影装置以及感光构件的算术平均表面粗糙度Ra在0.014至0.60μm的范围内。

32. 发明申请

US20080056745A1 IMAGE FORMING METHOD AND APPARATUS FOR EFFECTIVELY CHARGING AN IMAGE CARRIER 有权
标题翻译：用于有效充电图像载体的图像形成方法和装置
公开(公告)号：US20080056745A1
公开(公告)日：2008-03-06
申请号：US11849686
申请日：2007-09-04
申请人： Tetsumaru Fujita , Yuji Nagatomo , Yoshio Sakagawa
发明人： Tetsumaru Fujita , Yuji Nagatomo , Yoshio Sakagawa
IPC分类号： G03G15/02
CPC分类号： G03G15/0216 , G03G2215/00075 , G03G2215/021
摘要： An image forming apparatus, performing a corresponding method of image forming, includes an image carrier, a writing unit, a developing unit, a charging member configured to rotate continuously with the image carrier at a portion contacting the image carrier and uniformly charge a surface of the image carrier while contacting a surface thereof with the surface of the image carrier, a charge bias applying unit configured to apply a charge bias to the charging member, and a controller configured to control of driving of the image carrier and the charging member and reduce at a charge nip at a given timing a linear velocity ratio of a travel speed of the surface of the charging member to a travel speed of the surface of the image carrier.
摘要翻译：执行相应的图像形成方法的图像形成装置包括图像载体，书写单元，显影单元，充电构件，其构造成与图像载体在与图像载体接触的部分处连续旋转，所述图像载体在与所述图像载体的表面接触的同时，所述充电偏压施加单元被配置为向所述充电构件施加充电偏压;以及控制器，被配置为控制所述图像载体和所述充电构件的驱动，并且减小在给定时间的充电压区，充电构件的表面的行进速度与图像载体的表面的行进速度的线速度比。

33. 发明申请

US20070065179A1 Image forming apparatus having a charging brush capable of effectively removing contaminants including residual fine toner 审中-公开
标题翻译：具有能够有效地去除污染物的充电刷的图像形成装置，包括残留的细调色剂
公开(公告)号：US20070065179A1
公开(公告)日：2007-03-22
申请号：US11522458
申请日：2006-09-18
申请人： Tetsumaru Fujita
发明人： Tetsumaru Fujita
IPC分类号： G03G15/02
CPC分类号： G03G21/0011 , G03G2215/022 , G03G2221/0005
摘要： An image forming apparatus may include a photoreceptor, a cleaner and a charging mechanism. The cleaner may have a blade-like shape and may remove contaminants including residual toner from the photoreceptor. The charging mechanism may include a charging brush which may have a pile length not greater than 3 mm and a pile density of not smaller than 200,000 piles/6.45 sq. cm and may rotate in a direction counter to a rotation direction of the photoreceptor while contacting the photoreceptor.
摘要翻译：图像形成装置可以包括感光体，清洁器和充电机构。清洁器可以具有刀片形状并且可以从感光体去除污染物，包括残留的调色剂。充电机构可以包括可以具有不大于3mm的绒头长度和不小于200,000堆/ 6.45平方厘米的绒头密度的充电刷，并且可以在与感光体的旋转方向相反的方向上旋转，同时接触感光体。

34. 发明授权

US09958806B2 Developing device and image forming apparatus incorporating same 有权
公开(公告)号：US09958806B2
公开(公告)日：2018-05-01
申请号：US15346018
申请日：2016-11-08
申请人： Masato Tsuji , Tetsumaru Fujita , Yuji Nagatomo , Mitsutoshi Kichise , Yutaro Kaku , Kazuki Matsumoto
发明人： Masato Tsuji , Tetsumaru Fujita , Yuji Nagatomo , Mitsutoshi Kichise , Yutaro Kaku , Kazuki Matsumoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0812
摘要： A developing device includes a toner bearer to rotate while bearing toner and a toner regulator including a bend on a free end side. The bend is disposed in contact with a surface of the toner bearer and defines a regulation nip to adjust an amount of the toner on the toner bearer. The toner regulator further includes an area having a water contact angle greater than or equal to 70 degrees. The area having the water contact angle includes, at least, a downstream end of the bend in a rotation direction of the toner bearer.

35. 发明授权

US08688015B2 Development device, processing unit and image forming apparatus 有权
标题翻译：开发装置，处理单元和图像形成装置
公开(公告)号：US08688015B2
公开(公告)日：2014-04-01
申请号：US13196413
申请日：2011-08-02
申请人： Tetsumaru Fujita , Kohta Sakaya
发明人： Tetsumaru Fujita , Kohta Sakaya
IPC分类号： G03G15/08
CPC分类号： G03G15/0877
摘要： A development device includes a developer carrier configured to carry on a surface thereof a developer, the developer carrier being disposed to face a latent image carrier, a developer tank having the developer carrier, a developer container configured to house the developer to be supplied to the developer tank, the developer container being connected to the developer tank through a partition having an opening, and a developer carrier member configured to carry the developer in the developer container, the developer being supplied to the developer tank from the opening while being carried by the developer carrier member, and the amount of developer to be supplied to the developer tank from the opening being gradually increased in a developer carrying direction of the developer carrier member.
摘要翻译：显影装置包括显影剂载体，其构造成在其表面上承载有显影剂，显影剂载体被设置为面对潜像载体，具有显影剂载体的显影剂罐，显影剂容器，其构造成容纳待供应至显影剂容器通过具有开口的隔板连接到显影剂罐，以及构造成将显影剂携带在显影剂容器中的显影剂载体构件，显影剂从开口被供给到显影剂槽，同时由显影剂载体构件，并且从开口供应到显影剂罐的显影剂的量在显影剂载体构件的显影剂输送方向上逐渐增加。

36. 发明授权

US08503892B2 Developing unit, image forming apparatus, and process cartridge 失效
标题翻译：显影单元，成像设备和处理盒
公开(公告)号：US08503892B2
公开(公告)日：2013-08-06
申请号：US13013224
申请日：2011-01-25
申请人： Kohta Sakaya , Tomohiro Kubota , Tetsumaru Fujita , Atsushi Takehara , Naoki Nakatake
发明人： Kohta Sakaya , Tomohiro Kubota , Tetsumaru Fujita , Atsushi Takehara , Naoki Nakatake
IPC分类号： G03G15/08
CPC分类号： G03G15/08
摘要： A developing unit includes: a developer carrier; a toner supplying member having a porous surface layer; a toner storage storing therein toner; a stirring member that is rotated to stir the toner; a toner amount detecting unit that detects an amount of the toner; a toner supplying unit that supplies new toner to the toner storage based on a detection result; and a toner removing member that removes the toner carried in the porous surface layer, wherein the toner removing member is arranged in a separable and contactable manner from and with the porous surface layer, and the developing unit has a stirring mode in which the toner removing member is brought into contact with the porous surface layer, and the toner supplying member is rotated while the stirring member is rotated to stir the toner.
摘要翻译：显影单元包括：显影剂载体; 具有多孔表面层的调色剂供应构件; 存储有调色剂的调色剂储存器; 旋转以搅拌调色剂的搅拌构件; 调色剂量检测单元，其检测调色剂的量; 调色剂供应单元，其基于检测结果向调色剂存储器提供新的调色剂; 以及去除多孔表面层中承载的调色剂的调色剂去除构件，其中调色剂移除构件以与多孔表面层分离和接触的方式布置，并且显影单元具有搅拌模式，其中调色剂除去与多孔表面层接触，并且调色剂供应构件在搅拌构件旋转的同时旋转以搅拌调色剂。

37. 发明授权

US08452216B2 Image forming apparatus which mixes new unused toner with used old toner 有权
标题翻译：图像形成装置将新的未使用的调色剂与旧的碳粉混合
公开(公告)号：US08452216B2
公开(公告)日：2013-05-28
申请号：US12880452
申请日：2010-09-13
申请人： Tetsumaru Fujita , Atsushi Takehara , Naoki Nakatake
发明人： Tetsumaru Fujita , Atsushi Takehara , Naoki Nakatake
IPC分类号： G03G15/08
CPC分类号： G03G15/0822 , G03G15/0844 , G03G15/0855 , G03G15/0865 , G03G15/0875 , G03G2215/0614 , G03G2215/085
摘要： An image forming apparatus includes an image carrier on which a latent image is formed, a charging device that charges the image carrier, an exposing device that irradiates the image carrier, thereby forming a latent image on the image carrier, a developing device that develops the latent image into a visible image by using a monocomponent developer that is carried and transferred by a developer carrier and that is charged to a predetermined polarity, and a toner supply container that is installed in the developing device for toner supply. Used old toner is conveyed from the developing device to the toner supply container and mixed with unused new toner within the toner supply container and thus a mixed toner is produced, and the mixed toner is supplied to the developing device.
摘要翻译：图像形成装置包括形成有潜像的图像载体，对图像载体进行充电的充电装置，照射图像载体的曝光装置，从而在图像载体上形成潜像;显影装置，通过使用由显影剂载体携带并转移并被充电至预定极性的单组分显影剂将潜像变成可见图像，以及安装在用于调色剂供应的显影装置中的调色剂供应容器。将旧的调色剂从显影装置输送到调色剂供应容器，并与调色剂供应容器内的未使用的新调色剂混合，从而制成混合调色剂，并将混合调色剂供应到显影装置。

38. 发明申请

US20110217055A1 IMAGE FORMING APPARATUS AND TONER SUPPLY METHOD 失效
标题翻译：图像形成装置和调色剂供应方法
公开(公告)号：US20110217055A1
公开(公告)日：2011-09-08
申请号：US13025266
申请日：2011-02-11
申请人： Atsushi TAKEHARA , Naoki Nakatake , Tetsumaru Fujita , Tomohiro Kubota , Kohta Sakaya
发明人： Atsushi TAKEHARA , Naoki Nakatake , Tetsumaru Fujita , Tomohiro Kubota , Kohta Sakaya
IPC分类号： G03G15/08
CPC分类号： G03G15/5058 , G03G15/0131 , G03G15/0875 , G03G15/0877 , G03G2215/00059
摘要： Toner is supplied from a toner container to a developing part that causes the toner to adhere to a latent image formed on a latent image carrying member and develops the latent image, a pre-toner-supply operation of supplying a predetermined amount of toner to the developing part is carried out, a fog detecting image is formed and fog is detected in the fog detecting image, a toner supply amount to be supplied to the developing part is determined based on the fog detected in the detecting and an operational status of the developing part since the toner was supplied to the developing part the last time, and the toner supply amount of the toner determined in the determining is supplied to the developing part.
摘要翻译：调色剂从调色剂容器供应到显影部分，使得调色剂粘附到潜像承载部件上形成的潜像并显影潜像，将预定量的调色剂供应到预调色剂供应操作进行雾化检测图像，并且在雾化检测图像中检测出灰雾，根据检测中检测到的雾和显影部分的操作状态来确定要供应到显影部分的调色剂供应量最后一次将调色剂供应到显影部分，并且将在确定中确定的调色剂的调色剂供应量提供给显影部分。

39. 发明授权

US07903993B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US07903993B2
公开(公告)日：2011-03-08
申请号：US11972154
申请日：2008-01-10
申请人： Yoshio Sakagawa , Tetsumaru Fujita , Yuji Nagatomo
发明人： Yoshio Sakagawa , Tetsumaru Fujita , Yuji Nagatomo
IPC分类号： G03G15/00
CPC分类号： G03G15/0225
摘要： An image forming apparatus capable of maintaining cleaning performance of a cleaning brush and downsizing the apparatus main body. Transfer residual toner accumulated on the cleaning brush is transferred onto a photoreceptor by an electrostatic force, hence the cleaning brush becomes clean and the cleaning performance thereof improves. Therefore, the photoreceptor and a charging roller can be cleaned well by the cleaning brush over a long period of time, and the photoreceptor can be charged well by the charging roller over a long period of time. Moreover, because the transfer residual toner that is transferred from the cleaning brush onto the photoreceptor is recovered by a developing device, it is not necessary to provide the apparatus main body with a toner recovery portion that is specially designed for recovering the transfer residual toner, hence the apparatus main body can be downsized.
摘要翻译：一种能够保持清洁刷的清洁性能并且使装置主体小型化的图像形成装置。转印在清洁刷上的转印残留调色剂通过静电力转印到感光体上，清洁刷变清洁，清洗性能提高。因此，可以通过清洁刷长时间清洁感光体和充电辊，并且可以通过充电辊在长时间内充分地对感光体充电。此外，由于通过显影装置回收从清洁刷转印到感光体上的转印残余调色剂，所以不必为设备主体提供专门设计用于回收转印残留调色剂的调色剂回收部分，因此能够使装置主体小型化。

40. 发明授权

US07796935B2 Process cartridge and image forming apparatus including same 有权
标题翻译：处理盒和包括它的成像设备
公开(公告)号：US07796935B2
公开(公告)日：2010-09-14
申请号：US12178108
申请日：2008-07-23
申请人： Tetsumaru Fujita , Yuji Nagatomo
发明人： Tetsumaru Fujita , Yuji Nagatomo
IPC分类号： G03G21/00
CPC分类号： G03G21/0035 , G03G21/1814
摘要： A process cartridge includes a latent image carrier, a charging unit, a latent image forming unit, a developing unit, a transfer unit, a rotary brush contacting a curved surface of the latent image carrier to form a nip, and a brush housing including a first tip and a second tip, covering the rotary brush such that a place where the rotary brush contacts the latent image carrier is opened. A downstream end of the nip where the rotary brush contacts the latent image carrier in the rotation direction of the rotary brush is not higher than a center of curvature of the latent image carrier where the rotary brush contacts, and the first tip of the brush housing is downstream of the rotary brush, further toward the latent image carrier than a tangent to the surface of the latent image carrier at the downstream end of the nip.
摘要翻译：处理盒包括潜像载体，充电单元，潜像形成单元，显影单元，转印单元，与潜像载体的弯曲表面接触以形成辊隙的旋转刷，以及包括第一尖端和第二尖端，覆盖旋转刷，使得旋转刷接触潜像载体的位置打开。旋转刷在旋转刷的旋转方向上与潜像载体接触的辊隙的下游端不高于旋转刷接触的潜像载体的曲率中心，并且刷子壳体的第一末端在旋转刷子的下游，进一步朝向潜像载体，而不是在辊隙的下游端与潜像载体的表面相切。

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