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公开(公告)号：US08081910B2
公开(公告)日：2011-12-20
申请号：US12621718
申请日：2009-11-19
IPC分类号： G03G15/06
CPC分类号： G03G15/0818
摘要： Provided is an image forming apparatus including: a latent image carrier; a charging unit; a latent image forming unit; a developing unit; a transferring unit; and a cleaning unit, wherein a voltage of the non-image portion of the latent image carrier is Vo, a voltage of the developing bias at the time when a force generated to bias the toner charged with the regular charging polarity in a direction from the latent image carrier to the toner carrier is maximum is Vmax, and a voltage of the developing bias at the time when a force generated to bias the toner charged with the regular charging polarity in a direction from the toner carrier to the latent image carrier is maximum is Vmin, in the developing position, an equation |Vmax−Vo|>|Vmin−Vo| is satisfied.
摘要翻译： 提供一种图像形成装置，包括：潜像载体; 充电单元; 潜像形成单元; 一个发展单位; 转移单元; 以及清洁单元，其中所述潜像载体的非图像部分的电压为Vo，所述显影偏压的电压，所述显影偏压在所产生的力沿着从所述潜像载体的方向偏向带有常规充电极性的调色剂 潜影载体到调色剂载体的最大值为Vmax，并且当在从调色剂载体向潜像载体的方向上以正常充电极性带电的调色剂产生的力产生的力时显影偏压的电压最大 是Vmin，处于显影位置，方程| Vmax-Vo |> | Vmin-Vo | 满意
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2.发明授权公开(公告)号：US08401443B2
公开(公告)日：2013-03-19
申请号：US13271140
申请日：2011-10-11
申请人： Yoichi Yamada , Tomohiro Aruga , Noboru Sakurai , Katsumi Okamoto , Hiroshi Kato , Masanao Kunugi , Takatomo Fukumoto
发明人： Yoichi Yamada , Tomohiro Aruga , Noboru Sakurai , Katsumi Okamoto , Hiroshi Kato , Masanao Kunugi , Takatomo Fukumoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0818 , G03G2215/0634
摘要： A developing device includes a toner particle-bearing roller that bears toner particles on its surface and develops a latent image borne by an image-bearing member with those toner particles, the toner particle-bearing roller has a projection portion disposed on its surface, the projection portion having a top surface having a flat portion, and a width of the top surface being equal to or more than a volume average particle diameter of the toner particles.
摘要翻译： 显影装置包括：调色剂颗粒承载辊，其表面上带有调色剂颗粒，并且通过这些调色剂颗粒显影由图像承载部件承载的潜像，调色剂颗粒承载辊具有设置在其表面上的突出部分， 突起部分具有平坦部分的顶表面，并且顶表面的宽度等于或大于调色剂颗粒的体积平均粒径。
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3.发明授权Developing device, image forming apparatus, image forming system, developing method, and toner bearing member 有权显影装置，图像形成装置，图像形成系统，显影方法和调色剂承载部件公开(公告)号：US08086152B2
公开(公告)日：2011-12-27
申请号：US12124939
申请日：2008-05-21
申请人： Yoichi Yamada , Takatomo Fukumoto
发明人： Yoichi Yamada , Takatomo Fukumoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0818
摘要： The present invention provides a developing device that includes a toner bearing member that includes regularly arranged projection sections and depressed sections for bearing toner, and that develops a latent image borne on an image bearing member with the toner borne on the projection sections and the depressed sections, wherein the latent image is developed in a state in which a projection section covering ratio at which toner contacting the projection sections covers the projection sections is smaller than a depressed section covering ratio at which toner contacting the depressed sections covers the depressed sections.
摘要翻译： 本发明提供了一种显影装置，其包括调色剂承载部件，该调色剂承载部件包括规则地布置的突出部分和用于承载调色剂的凹陷部分，并且在承载在图像承载部件上的潜像显影，所述调色剂承载在突出部分和凹陷部分上 其中，所述潜像以与所述突出部分接触的调色剂覆盖所述突出部分的突出部分覆盖率小于所述凹陷部分接触所述凹陷部分的调色剂覆盖所述凹陷部分的凹陷部覆盖率的状态显影。
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公开(公告)号：US08081911B2
公开(公告)日：2011-12-20
申请号：US12388857
申请日：2009-02-19
IPC分类号： G03G15/08
CPC分类号： G03G15/0818
摘要： A development roller includes a base unit having a base recess and a base projection formed in a predetermined area of a circumference surface of the base unit, and a surface layer formed on the circumference surface of the base unit and having a recess and a projection formed respectively in accordance with the base recess and the base projection of the base unit.
摘要翻译： 显影辊包括：基座单元，具有形成在基座单元的圆周表面的预定区域中的基部凹部和基部突起;以及基底单元的圆周表面上形成的凹部和突起， 分别根据基部凹部和基部单元的基底突起。
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公开(公告)号：US07609993B2
公开(公告)日：2009-10-27
申请号：US11537917
申请日：2006-10-02
CPC分类号： G03G15/161 , G03G21/12 , G03G2215/1661 , G03G2221/1627
摘要： An image forming apparatus, includes: a developer moving element that moves developer in order to transfer the developer onto a medium by rotating with the developer being borne on the developer moving element; and a collector for collecting the developer that has not been transferred onto the medium and remains on the developer moving element, the collector having a scraper blade that can abut against and separate from the developer moving element and that is for scraping off the developer on the developer moving element by abutting against the developer moving element, a sealing member that can contact with and separate from the developer moving element and that is for preventing, by contacting the developer moving element, the developer from spilling outside the collector, a ventilation opening for moving air in the collector outside the collector, and a valve for adjusting an amount of air passing through the ventilation opening, and the collector being made such that when either one of the scraper blade and the sealing member, whichever separates earlier from the developer moving element, starts separating therefrom, air can pass through the ventilation opening.
摘要翻译： 一种图像形成装置，包括：显影剂移动元件，其移动显影剂以便通过与显影剂承载在显影剂移动元件上的转动而将显影剂转印到介质上; 以及收集器，用于收集尚未转印到介质上并保留在显影剂移动元件上的显影剂，该收集器具有可与显影剂移动元件抵接并与显影剂移动元件分离的刮板，并且用于刮除显影剂移动元件上的显影剂 显影剂移动元件通过抵靠显影剂移动元件，与显影剂移动元件接触并与显影剂移动元件分离的密封元件，并且用于通过使显影剂移动元件接触显影剂而不会溢出集电器外部的通风开口， 在收集器外部的收集器中移动空气，以及用于调节通过通气开口的空气量的阀，并且收集器被制成使得当刮板和密封构件中的任一个与显影剂移动 元件开始分离，空气可以通过通风口。
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公开(公告)号：US07965965B2
公开(公告)日：2011-06-21
申请号：US12620703
申请日：2009-11-18
申请人： Masahiro Maeda , Yoichi Yamada , Yoshiyuki Kurebayashi , Daisuke Matsumoto , Masaru Kobashi , Takatomo Fukumoto
发明人： Masahiro Maeda , Yoichi Yamada , Yoshiyuki Kurebayashi , Daisuke Matsumoto , Masaru Kobashi , Takatomo Fukumoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0818 , G03G2215/0634
摘要： Provided is a development device including: a development roller in which continuous spiraling inclined grooves having different inclinations with respect to an axial direction are formed so as to cross each other; and a feed roller which is in contact with the development roller and feeds toner to the development roller, wherein transportation force, which is used for transporting the toner on the development roller from one side to the other side of the axial direction of the development roller, is generated by the rotation of the feed roller.
摘要翻译： 提供一种显影装置，包括：显影辊，其中形成有相对于轴向方向具有不同倾斜度的连续螺旋倾斜槽，以便彼此交叉; 以及与显影辊接触并将调色剂供给到显影辊的进给辊，其中用于将显影辊上的调色剂从显影辊轴向方向的一侧传送到另一侧的输送力 由进给辊的旋转产生。
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7.发明授权公开(公告)号：US07907879B2
公开(公告)日：2011-03-15
申请号：US12388908
申请日：2009-02-19
IPC分类号： G03G15/08
CPC分类号： G03G15/0818 , G03G2215/0634 , G03G2215/0861 , G03G2215/0863
摘要： A development roller includes a base unit having a base recess and a base projection that are formed in a predetermined area of a circumference surface of the base unit, and a surface layer formed on the circumference surface of the base unit and having on the circumference thereof a recess and a projection formed respectively in accordance with the base recess and the base projection of the base unit. Surface hardness of the projection is higher than surface hardness of the recess.
摘要翻译： 显影辊包括具有底座凹部和基部突出部的基座单元，基座突起形成在基座单元的圆周表面的预定区域中，并且表面层形成在基座单元的圆周表面上并且在其圆周上 分别形成有与基座部的底座凹部和底座突起部形成的凹部和突起。 突起的表面硬度高于凹部的表面硬度。
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公开(公告)号：US20100014890A1
公开(公告)日：2010-01-21
申请号：US12502881
申请日：2009-07-14
IPC分类号： G03G15/02
CPC分类号： G03G21/00 , G03G2221/1609
摘要： Provided is an image forming apparatus including: a rotatable image carrier; a protective agent supplying unit supplying a protective agent to the image carrier; a first charging unit charging the image carrier to the same polarity as a regular charging polarity of a toner; a second charging unit charging the protective agent supplied to the image carrier to the opposite polarity to the regular charging polarity of the toner; an exposure unit forming an electrostatic latent image on the image carrier; a development unit developing the electrostatic latent image of the image carrier; and a transfer unit transferring the image of the image carrier, wherein the second charging unit is disposed between the protective agent supplying unit and the development unit.
摘要翻译： 提供一种图像形成装置，包括：可旋转图像载体; 保护剂供给单元，向图像载体供给保护剂; 第一充电单元将图像载体充电至与调色剂的常规充电极性相同的极性; 第二充电单元将提供给图像载体的保护剂充电到与调色剂的常规充电极性相反的极性; 在所述图像载体上形成静电潜像的曝光单元; 显影单元显影所述图像载体的静电潜像; 以及传送图像载体的图像的转印单元，其中所述第二充电单元设置在所述保护剂供给单元和所述显影单元之间。
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9.发明授权公开(公告)号：US07555252B2
公开(公告)日：2009-06-30
申请号：US11623669
申请日：2007-01-16
IPC分类号： G03G15/08
CPC分类号： G03G15/0818
摘要： An image forming apparatus includes: an image bearing body that is rotatable about a central axis thereof, and that bears a dot-like latent image, on a surface of the image bearing body, in each of a plurality of divided regions that are arranged in rows along a direction that intersects an axial direction of the central axis at a predetermined intersection angle; and a developer bearing roller that is rotatable in order to make visible, as a developer image, the dot-like latent images borne by the image bearing body, using a developer borne on a surface of the developer bearing roller, the developer bearing roller opposing the image bearing body such that an axial direction of the developer bearing roller is parallel to the axial direction of the image bearing body, and that includes a helical groove portion on the surface of the developer bearing roller, the helical groove portion being inclined at a predetermined inclination angle with respect to the axial direction of the developer bearing roller and being formed having a uniform pitch in the axial direction, wherein a value that is a tangent of the inclination angle divided by a ratio of a moving speed of the surface of the developer bearing roller to a moving speed of the surface of the image bearing body is different from a tangent of the intersection angle.
摘要翻译： 图像形成装置包括：图像承载体，其能够围绕其中心轴线旋转并且在图像承载体的表面上具有点状潜像，所述图像承载体分布在多个分割区域中 沿着与中心轴的轴向相交的方向以预定的交叉角度排列; 以及显影剂承载辊，其可旋转以使作为显影剂图像可见的由图像承载体承载的点状潜像，使用承载在显影剂承载辊的表面上的显影剂，显影剂承载辊相对于 所述图像承载体使得所述显影剂承载辊的轴向平行于所述图像承载体的轴向方向，并且所述图像承载体在所述显影剂承载辊的表面上包括螺旋槽部分，所述螺旋槽部分倾斜于 相对于显影剂承载辊的轴向的预定倾斜角度并且在轴向方向上具有均匀的间距，其中，倾斜角的切线值除以所述倾斜角度的表面的移动速度的比率 显影轴承辊与图像承载体的表面的移动速度不同于交叉角的切线。
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公开(公告)号：US20070147860A1
公开(公告)日：2007-06-28
申请号：US11561269
申请日：2006-11-17
CPC分类号： G03G15/161 , G03G15/1605
摘要： An image forming apparatus is operable to form an image on a recording medium. An image carrier is adapted such that a toner image is formed thereon by developing an electrostatic latent image. An intermediate transfer member is adapted such that the toner image is primarily transferred thereto. In a transfer device, a roller member is adapted to come in contact with the intermediate transfer member. A first bias voltage applier is operable to provide a transfer voltage, thereby applying a first bias voltage between the roller member and the intermediate transfer member to secondarily transfer the toner image onto the recording medium in order to obtain the image. A charge eliminator is disposed in the vicinity of the roller member. A second bias voltage applier is operable to apply a second bias voltage to the charge eliminator to eliminate charges on the recording medium which has been subjected to the application of the first bias voltage. A controller is operable to vary the second bias voltage in accordance a deviation amount of the first bias voltage.
摘要翻译： 图像形成装置可操作以在记录介质上形成图像。 图像载体适于使得通过显影静电潜像在其上形成调色剂图像。 中间转印部件适于使调色剂图像主要转印到其上。 在转移装置中，辊构件适于与中间转印构件接触。 第一偏置电压施加器可操作以提供转印电压，从而在辊构件和中间转印构件之间施加第一偏置电压以将调色剂图像二次转印到记录介质上以获得图像。 电动消除器设置在辊构件附近。 第二偏置电压施加器可操作以将第二偏置电压施加到电荷消除器以消除已经经受施加第一偏置电压的记录介质上的电荷。 控制器可操作以根据第一偏置电压的偏差量改变第二偏置电压。
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