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1. 发明申请

US20080181654A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20080181654A1
公开(公告)日：2008-07-31
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： G03G15/02
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。

2. 发明申请

US20080232875A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20080232875A1
公开(公告)日：2008-09-25
申请号：US12050529
申请日：2008-03-18
申请人： Yoshio SAKAGAWA , Tetsumaru Fujita , Yuji Nagatomo
发明人： Yoshio SAKAGAWA , Tetsumaru Fujita , Yuji Nagatomo
IPC分类号： G03G21/00
CPC分类号： G03G21/0035
摘要： A brush member includes plural raisings and contacts a surface of an image bearer downstream of a transfer station and temporary captures toner remaining on the surface of the image bearer into the brush member in a toner capturing process. The brush member returns the toner to the surface of the image bearer at a prescribed time in a toner returning process. A bending direction of the plural raisings is opposite in the returning process to that in the toner capturing process.
摘要翻译：刷构件包括多个凸起并且接触转印站下游的图像承载器的表面，并且在调色剂捕获过程中将残留在图像载体的表面上的调色剂临时捕获到刷构件中。刷子部件在调色剂返回处理中的规定时间将调色剂返回到图像承载体的表面。多个升高的弯曲方向与在调色剂捕捉处理中的返回处理相反。

3. 发明申请

US20080187361A1 IMAGE FORMING METHOD AND APPARATUS 有权
标题翻译：图像形成方法和装置
公开(公告)号：US20080187361A1
公开(公告)日：2008-08-07
申请号：US12023544
申请日：2008-01-31
申请人： Yoshio SAKAGAWA , Tetsumaru Fujita , Yuji Nagatomo
发明人： Yoshio SAKAGAWA , Tetsumaru Fujita , Yuji Nagatomo
IPC分类号： G03G15/02
CPC分类号： G03G15/0258 , G03G2215/021
摘要： An image forming apparatus includes: an image carrying member having a movable surface; a charging device including a rotatable charging member which is supplied with a voltage including a direct voltage superimposed with an alternating voltage, and which contacts and charges the image carrying member; an electrostatic latent image forming device for forming an electrostatic latent image on the image carrying member; and a development device for developing the electrostatic latent image. The frequency of the alternating voltage is lower in a non-image forming area than in an image forming area. In the non-image forming area, the image carrying member is charged to a surface potential having a waveform shape in accordance with the alternating voltage, and the potential difference between the surface potential and the voltage applied to the charging member generates an electric field which moves toner adhering to the charging member to the image carrying member.
摘要翻译：图像形成装置包括：具有可移动表面的图像承载构件; 充电装置，包括：可旋转充电部件，其被提供有包括叠加有交流电压的直流电压的电压，并且对图像承载部件进行接触和充电; 用于在图像承载部件上形成静电潜像的静电潜像形成装置; 以及用于显影静电潜像的显影装置。非图像形成区域中的交流电压的频率低于图像形成区域。在非图像形成区域中，将图像承载部件充电到具有与交流电压相对应的波形形状的表面电位，并且表面电位与施加到充电部件的电压之间的电位差产生电场，将附着在充电构件上的调色剂移动到图像承载构件。

4. 发明申请

US20080181655A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20080181655A1
公开(公告)日：2008-07-31
申请号：US12020089
申请日：2008-01-25
申请人： Yoshio SAKAGAWA , Tetsumaru Fujita , Yuji Nagatomo
发明人： Yoshio SAKAGAWA , Tetsumaru Fujita , Yuji Nagatomo
IPC分类号： G03G15/02
CPC分类号： G03G21/0035
摘要： The present invention provides an image forming apparatus in which the cleaning performance of a cleaning brush is preserved over time while affording a smaller apparatus main body. During a print job, toner recovered from a charging roller to a cleaning brush is transferred from the cleaning brush to a cleaning auxiliary roller, thereby preventing excessive accumulation of toner in the cleaning brush. During non print job times, toner accumulated in the cleaning brush is transferred to the charging roller directly and via the cleaning auxiliary roller, whereby the cleaning brush becomes clean while preserving its cleaning performance. Also, toner transferred to the charging roller is transferred to a photosensitive unit is recovered into a developing device, which does away with the need for a dedicated recovery toner holding portion for recovering residual toner, thereby reducing the size of the apparatus main body.
摘要翻译：本发明提供了一种图像形成装置，其中清洁刷的清洁性能随着时间的推移而被保留，同时提供较小的装置主体。在打印作业期间，从充电辊回收到清洁刷的调色剂从清洁刷转移到清洁辅助辊，从而防止调色剂在清洁刷中的过度积聚。在非打印作业时间期间，积存在清洁刷中的调色剂直接通过清洁辅助辊传送到充电辊，由此清洁刷变得清洁，同时保持其清洁性能。此外，转移到充电辊的调色剂转移到感光单元被回收到显影装置中，这不需要用于回收残留调色剂的专用回收调色剂保持部分，从而减小装置主体的尺寸。

5. 发明申请

US20080152384A1 ELECTRIFYING APPARATUS, A PROCESSING UNIT, AND AN IMAGE FORMATION APPARATUS 有权
标题翻译：电气设备，加工单元和图像形成装置
公开(公告)号：US20080152384A1
公开(公告)日：2008-06-26
申请号：US11954402
申请日：2007-12-12
申请人： Tetsumaru FUJITA , Yoshio SAKAGAWA , Yuji NAGATOMO
发明人： Tetsumaru FUJITA , Yoshio SAKAGAWA , Yuji NAGATOMO
IPC分类号： G03G21/16
CPC分类号： G03G15/0233 , G03G2215/025
摘要： An electrifying apparatus, a processing unit including the electrifying apparatus, and an image formation apparatus including the electrifying apparatus are disclosed.The electrifying apparatus includes a conductive sheet for electrifying at least one of a surface of a photoconductor and toner adhered to the surface. The conductive sheet is specified to have a pure-water contact angle equal to or greater than 108 degrees, and to have a shore D hardness equal to or less than 65.
摘要翻译：公开了一种通电装置，包括通电装置的处理单元和包括通电装置的图像形成装置。带电装置包括用于使感光体的表面和粘附到表面的调色剂中的至少一个带电的导电片。导电片被规定为具有等于或大于108度的纯水接触角，并且具有等于或小于65的肖氏D硬度。

6. 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。

7. 发明申请

US20130142530A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20130142530A1
公开(公告)日：2013-06-06
申请号：US13677873
申请日：2012-11-15
申请人： Shin YAMAMOTO , Shin MURAYAMA , Yoshio SAKAGAWA , Yuji NAGATOMO
发明人： Shin YAMAMOTO , Shin MURAYAMA , Yoshio SAKAGAWA , Yuji NAGATOMO
IPC分类号： G03G15/08
CPC分类号： G03G15/08 , G03G15/065 , G03G15/22 , G03G15/50
摘要： An image forming apparatus includes a rotatable photoconductor, a charging unit, an exposure unit to expose the photoconductor to reduce an electrical potential at the photoconductor, a developing unit to charge the toner held on a toner bearing member with friction and attract the toner to the exposed portion on the photoconductor by supplying a development voltage from a first power source and using an electrical potential difference between the toner bearing member and the photoconductor in the development area, a reverse development voltage controller to supply a reverse development voltage while a non-charged portion on the photoconductor passes the development area, and a developer reducing potential applier to supply a development restraining potential and an absolute value smaller than a target charging potential to the photoconductor while the reverse development voltage is supplied.
摘要翻译：图像形成装置包括可旋转感光体，充电单元，曝光单元以暴露光电导体以减小感光体上的电位;显影单元，用于对保持在调色剂承载构件上的调色剂进行摩擦充电并将调色剂吸引到通过从第一电源提供显影电压并在显影区域中使用调色剂承载部件和感光体之间的电位差来控制曝光部分，反向显影电压控制器，在不带电的情况下提供反向显影电压光电导体上的部分通过显影区域，并且显影剂减少潜在的施加器，以在提供反向显影电压的同时向光电导体提供显影抑制电位和小于目标充电电位的绝对值。

8. 发明申请

US20080317513A1 IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND DEVELOPMENT DEVICE 有权
标题翻译：图像形成装置，处理盒和开发装置
公开(公告)号：US20080317513A1
公开(公告)日：2008-12-25
申请号：US12141464
申请日：2008-06-18
申请人： Yoshio SAKAGAWA , Yoshiko Ogawa
发明人： Yoshio SAKAGAWA , Yoshiko Ogawa
IPC分类号： G03G15/08
CPC分类号： G03G15/0808 , G03G2221/183
摘要： An image forming apparatus includes either one of a process cartridge and a development device. The process cartridge is attachable to and detachable from the image forming apparatus, and integrally includes the development device. The development device includes a developer supplying member and a developer carrying member, at least one of which is formed of an elastic material, and which rotate in contact with each other. The developer supplying member is provided to be displacable in directions of contacting with and separating from the developer carrying member, and is biased toward the developer carrying member by predetermined biasing force.
摘要翻译：图像形成装置包括处理盒和显影装置中的任一个。处理盒可以连接到图像形成装置上并与图像形成装置分离，并且整体地包括显影装置。显影装置包括显影剂供应构件和显影剂承载构件，其中至少一个由弹性材料形成并且彼此接触。显影剂供应构件设置成可在与显影剂承载构件接触和分离的方向上移动，并且通过预定的偏压力被朝向显影剂承载构件偏置。

9. 发明申请

US20150055987A1 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME 有权
标题翻译：开发设备和图像形成装置，包括它们
公开(公告)号：US20150055987A1
公开(公告)日：2015-02-26
申请号：US14456032
申请日：2014-08-11
申请人： Yoshio SAKAGAWA , Shin Murayama , Yasuhide Matsuno
发明人： Yoshio SAKAGAWA , Shin Murayama , Yasuhide Matsuno
IPC分类号： G03G15/08
CPC分类号： G03G15/081 , G03G15/0812 , G03G15/0844
摘要： A developing device includes a developer bearer and a regulation member. The developer bearer bears developer on a surface thereof. The developer bearer is rotatable forward and in reverse. The regulation member is disposed in contact or non-contact with the surface of the developer bearer to regulate amount of the developer on the developer bearer. In a non-development period, when the developer bearer rotates in a direction of reverse rotation opposite to a direction of forward rotation in which the developer bearer rotates in a development period, the developer bearer stops a series of rotating operations after the developer bearer rotates in the direction of forward rotation as a last rotating operation. A total rotation amount of forward rotation is set to be greater than a total rotation amount of reverse rotation in the series of rotating operations.
摘要翻译：显影装置包括显影剂载体和调节构件。显影承载者在其表面上承载显影剂。显影承载体可向前和向后旋转。调节构件与显影剂载体的表面接触或非接触地布置，以调节显影剂承载体上的显影剂的量。在非显影期间，当显影剂承载体在与显影承载件在显影期间旋转的正向旋转方向相反的方向旋转时，显影剂载体在显影剂承载件旋转之后停止一系列旋转操作在作为最后旋转操作的正向旋转的方向上。在一系列旋转操作中，向前旋转的总旋转量被设定为大于反向旋转的总旋转量。

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