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1. 发明授权

US07555252B2 Image forming apparatus that prevents conspicuous unevenness in image density 有权
标题翻译：防止图像浓度显着不均匀的图像形成装置
公开(公告)号：US07555252B2
公开(公告)日：2009-06-30
申请号：US11623669
申请日：2007-01-16
申请人： Tomohiro Aruga , Yoichi Yamada , Noboru Sakurai , Takatomo Fukumoto
发明人： Tomohiro Aruga , Yoichi Yamada , Noboru Sakurai , Takatomo Fukumoto
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。

2. 发明授权

US08401443B2 Toner-particle bearing roller, developing device, and image forming apparatus 有权
标题翻译：调色剂承载辊，显影装置和图像形成装置
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。

3. 发明授权

US07945194B2 Image forming apparatus and image forming system reducing electrical discharge 有权
标题翻译：图像形成装置和成像系统减少放电
公开(公告)号：US07945194B2
公开(公告)日：2011-05-17
申请号：US12121627
申请日：2008-05-15
申请人： Yoichi Yamada , Hiroshi Kato , Tomohiro Aruga , Takatomo Fukumoto
发明人： Yoichi Yamada , Hiroshi Kato , Tomohiro Aruga , Takatomo Fukumoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0818 , G03G2215/0634
摘要： An image formation apparatus includes an image carrier and a toner carrier having a concave portion arrayed in a regular pattern on its surface. A latent image that is carried on the image carrier is developed by toner carried in the concave portion by applying a development voltage to the toner carrier. After the toner carrier has developed the latent image, at least one layer of toner remains in the concave portion.
摘要翻译：图像形成装置包括图像载体和其表面上以规则图案排列的凹部的调色剂载体。通过对调色剂载体施加显影电压，承载在图像载体上的潜像由在凹部中携带的调色剂显影。在调色剂载体已经显影潜像之后，至少一层调色剂残留在凹部中。

4. 发明授权

US07565099B2 Developing device and image forming apparatus having a toner-particle bearing roller with a helical groove portion 有权
标题翻译：显影装置和图像形成装置具有带有螺旋槽部分的调色剂 - 颗粒承载辊
公开(公告)号：US07565099B2
公开(公告)日：2009-07-21
申请号：US11554460
申请日：2006-10-30
申请人： Yoichi Yamada , Tomohiro Aruga , Noboru Sakurai , Masanao Kunugi , Katsumi Okamoto , Hiroshi Kato
发明人： Yoichi Yamada , Tomohiro Aruga , Noboru Sakurai , Masanao Kunugi , Katsumi Okamoto , Hiroshi Kato
IPC分类号： G03G15/08
CPC分类号： G03G15/0818 , G03G2215/0602 , G03G2215/0634
摘要： A developing device includes a container that contains toner particles that are for developing a latent image borne by an image bearing body, and a toner-particle bearing roller that has a helical groove portion on a surface thereof that is for bearing the toner particles, the helical groove portion having an inclination with respect to an axial direction and a circumferential direction of the toner-particle bearing roller and being formed having a uniform pitch in the axial direction.
摘要翻译：显影装置包括容纳有用于显影由图像承载体承载的潜像的调色剂颗粒的容器和在其表面上具有用于承载调色剂颗粒的螺旋槽部分的调色剂 - 颗粒承载辊，螺旋槽部分具有相对于调色剂 - 颗粒承载辊的轴向方向和圆周方向的倾斜并且在轴向上具有均匀的间距。

5. 发明授权

US08087170B2 Developing agent carrier manufacturing method, developing agent carrier, developing device and image forming apparatus 有权
标题翻译：显影剂载体制造方法，显影剂载体，显影装置和成像装置
公开(公告)号：US08087170B2
公开(公告)日：2012-01-03
申请号：US11561213
申请日：2006-11-17
申请人： Noboru Sakurai , Yoichi Yamada , Junichi Nakahara , Masanao Kunugi , Tomohiro Aruga , Katsumi Okamoto
发明人： Noboru Sakurai , Yoichi Yamada , Junichi Nakahara , Masanao Kunugi , Tomohiro Aruga , Katsumi Okamoto
IPC分类号： A01B29/00
CPC分类号： G03G15/0813 , G03G2215/0634 , Y10T29/49556 , Y10T29/4956 , Y10T29/49561
摘要： A method for manufacturing a developing agent carrier of a hollow or solid cylindrical shape having an outer peripheral surface and an irregularity section formed on the outer peripheral surface to carry a developing agent is provided. The method comprises a step of preparing a base material of a hollow or solid cylindrical shape which is to become the developing agent carrier, the base material having an outer peripheral surface; and a step of forming the irregularity section by pressing dice for formation of the irregularity section against the outer peripheral surface of the base material. The irregularity section forming step comprises a first step of forming a plurality of first depression portions on the outer peripheral surface of the base material by use of a die and a second step of forming a plurality of second depression portions on the outer peripheral surface of the base material by use of a die identical with or different from the die used in forming the first depression portions, in such a manner that the second depression portions are dislocated from the first depression portions.
摘要翻译：提供一种制造中空或实心圆柱形状的显影剂载体的方法，其具有形成在外周表面上以承载显影剂的外周表面和不规则部分。该方法包括制备中空或实心圆柱形状的基材作为显影剂载体的步骤，该基材具有外周表面; 以及通过将用于形成不规则部分的骰子压靠在基材的外周面上而形成不规则部分的步骤。不规则部分形成步骤包括：通过使用模具在母材的外周面上形成多个第一凹部的第一工序;在第二工序中，在第二工序中，使用与形成第一凹部的模具相同或不同的模具，使第二凹部从第一凹部脱位。

6. 发明授权

US08086150B2 Toner particle-bearing roller with projection portion, developing device having such toner particle-bearing roller, and image forming apparatus having such developing device 有权
标题翻译：具有突起部分的调色剂颗粒承载辊，具有这种调色剂颗粒承载辊的显影装置和具有这种显影装置的图像形成装置
公开(公告)号：US08086150B2
公开(公告)日：2011-12-27
申请号：US11556041
申请日：2006-11-02
申请人： Yoichi Yamada , Tomohiro Aruga , Noboru Sakurai
发明人： Yoichi Yamada , Tomohiro Aruga , Noboru Sakurai
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。

7. 发明申请

US20110193918A1 FLUID EJECTING APPARATUS AND CLEANING METHOD 审中-公开
标题翻译：流体喷射装置和清洁方法
公开(公告)号：US20110193918A1
公开(公告)日：2011-08-11
申请号：US13020751
申请日：2011-02-03
申请人： Masaru Kobashi , Yoichi Yamada , Daisuke Matsumoto , Tomohiro Aruga , Kiyoteru Katsuki
发明人： Masaru Kobashi , Yoichi Yamada , Daisuke Matsumoto , Tomohiro Aruga , Kiyoteru Katsuki
IPC分类号： B41J2/175
CPC分类号： B41J2/17596 , B41J2/16532 , B41J2/16585
摘要： A printer includes: a fluid ejecting head provided with multiple nozzles that eject ink; an ink supply tube that supplies the ink to the fluid ejecting head; and a pressure application mechanism that pressurizes the ink to swell from the nozzles by pressurizing the ink within the ink supply tube and then depressurizes the interior of the ink supply tube while the ink is swelling from the nozzles.
摘要翻译：打印机包括：流体喷射头，其具有喷射墨水的多个喷嘴; 墨水供给管，其将墨水供给到流体喷射头; 以及压力施加机构，其通过对供墨管内的油墨进行加压而使油墨从喷嘴膨胀，然后在油墨从喷嘴膨胀的同时使供墨管的内部减压。

8. 发明授权

US08311459B2 Developing apparatus, image forming apparatus, image forming method, and toner 有权
标题翻译：显影装置，图像形成装置，成像方法和调色剂
公开(公告)号：US08311459B2
公开(公告)日：2012-11-13
申请号：US12722338
申请日：2010-03-11
申请人： Yoichi Yamada , Tomohiro Aruga , Daisuke Matsumoto , Yoshio Nakazawa
发明人： Yoichi Yamada , Tomohiro Aruga , Daisuke Matsumoto , Yoshio Nakazawa
IPC分类号： G03G15/08 , G03G9/00
CPC分类号： G03G15/0812 , G03G9/09708 , G03G9/09716 , G03G9/09725 , G03G2215/0177
摘要： A developing apparatus includes: a housing which contains toner; a toner supporting roller; and a regulating blade, wherein bias voltage is applied to the regulating blade, the toner includes, an insulating external additive and an electrically-conductive external additive, satisfies any of the following first to third conditions, the first condition: a volume average grain diameter of the electrically-conductive external additive is larger than a volume average grain diameter of the insulating external additive, the second condition: a volume average grain diameter of the electrically-conductive external additive is larger than a volume average grain diameter of the insulating external additive in which coverage in the toner is higher than that of the electrically-conductive external additive, and the third condition: coverage of the electrically-conductive external additive in the toner is higher than coverage of the insulating external additive that is larger in volume average grain diameter than the electrically-conductive external additive.
摘要翻译：显影装置包括：容纳调色剂的壳体; 调色剂支撑辊; 以及调节叶片，其中偏置电压施加到调节叶片，调色剂包括绝缘外部添加剂和导电外部添加剂，满足以下第一至第三条件中的任何一个，第一条件：体积平均粒径导电性外部添加剂的体积平均粒径大于绝缘性外部添加剂的体积平均粒径，第二条件：导电性外部添加剂的体积平均粒径大于绝缘性外部添加剂的体积平均粒径其中调色剂中的覆盖率高于导电外部添加剂的覆盖率，第三条件是：调色剂中的导电外部添加剂的覆盖率高于体积平均颗粒中较大的绝缘外部添加剂的覆盖直径比导电外添加剂。

9. 发明申请

US20100239326A1 DEVELOPING DEVICE, IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 审中-公开
标题翻译：开发设备，图像形成装置和图像形成方法
公开(公告)号：US20100239326A1
公开(公告)日：2010-09-23
申请号：US12724845
申请日：2010-03-16
申请人： Yoichi Yamada , Tomohiro Aruga , Daisuke Matsumoto , Atsunori Kitazawa , Masaru Kobashi
发明人： Yoichi Yamada , Tomohiro Aruga , Daisuke Matsumoto , Atsunori Kitazawa , Masaru Kobashi
IPC分类号： G03G15/08
CPC分类号： G03G15/0812
摘要： A developing device, an image forming apparatus and an image forming method are disclosed. The developing device includes a housing that stores toner therein; a toner carrying roller that has a plurality of convex portions and concave portions surrounding the convex portions are formed on the surface of the toner carrying roller; and a conductive regulation blade having a free end comes in contact with the surface of the toner carrying roller. The toner includes a conductive external additive as an external additive. The toner carrying roller carries both contact toner which is in direct contact with the surface of the toner carrying roller and non-contact toner which is not in direct contact with the surface of the toner carrying roller, on the concave portion. The regulation blade is applied with a regulation bias voltage of the same polarity as a normal charge polarity of the toner.
摘要翻译：公开了一种显影装置，图像形成装置和图像形成方法。显影装置包括在其中存储调色剂的壳体; 在调色剂承载辊的表面上形成具有多个凸部和围绕凸部的凹部的调色剂承载辊; 并且具有自由端的导电调节片与调色剂承载辊的表面接触。调色剂包括作为外部添加剂的导电外部添加剂。调色剂承载辊在凹部上承载与调色剂承载辊的表面直接接触的接触调色剂和不与调色剂承载辊的表面直接接触的非接触式调色剂。调节叶片施加与调色剂的正常电荷极性相同极性的调节偏置电压。

10. 发明授权

US08534808B2 Liquid ejecting apparatus and cleaning method in liquid ejecting apparatus 有权
标题翻译：液体喷射装置和液体喷射装置中的清洗方法
公开(公告)号：US08534808B2
公开(公告)日：2013-09-17
申请号：US13022601
申请日：2011-02-07
申请人： Tomohiro Aruga , Masaru Kobashi
发明人： Tomohiro Aruga , Masaru Kobashi
IPC分类号： B41J2/175
CPC分类号： B41J2/16585 , B41J2/16526 , B41J2/17596
摘要： The liquid ejecting apparatus includes nozzles which eject ink, an ink flow path which supplies ink from the upstream side toward the downstream side, a maintenance pump capable of suctioning and discharging ink from the ink flow path, a one-way valve which is opened in accordance with decompression on the downstream side, thereby allowing passage of ink from the upstream side to the downstream side, and a control unit which controls the driving of the maintenance pump, thereby performing a cleaning process, wherein the control unit makes the maintenance pump suction ink from a pressure-changing position in the ink flow path by performing the suction driving of the maintenance pump after making the maintenance pump discharge ink from the pressure-changing position in the ink flow path into the ink flow path by performing the discharge driving of the maintenance pump.
摘要翻译：液体喷射装置包括喷射墨水的喷嘴，从上游侧向下游侧供给墨水的墨水流路，能够从墨水流路吸引和排出墨水的维护泵，打开的墨水根据下游侧的减压，从而允许墨水从上游侧流向下游侧;以及控制单元，其控制维护泵的驱动，从而进行清洁处理，其中控制单元使维护泵抽吸通过在使维护泵从油墨流路中的压力变化位置将墨水排出到墨水流路中之后进行维护泵的抽吸驱动，通过进行墨水流路中的压力变化位置的排出驱动维修泵。

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