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1. 发明授权

US08503904B2 Developing device, imaging unit and image forming apparatus 有权
标题翻译：显影装置，成像装置和成像装置
公开(公告)号：US08503904B2
公开(公告)日：2013-08-06
申请号：US13048577
申请日：2011-03-15
申请人： Yuusuke Okuno
发明人： Yuusuke Okuno
IPC分类号： G03G15/09
CPC分类号： G03G15/0942
摘要： A developing device develops a latent image on an image carrier by using a developer. The device includes a developer carrier that faces the image carrier and is configured to rotate while magnetically holding developer on its outer circumferential surface. The device also includes a magnetic member elongated along a rotational direction of the developer carrier to form a gap that surrounds the outer circumferential surface. The magnetic member overlaps an end of a developing region in a direction of a rotational axis of the developer carrier, when viewed from a direction perpendicular to the rotational axis. When a side of the magnetic member close to a center of the developer carrier is divided into first and second sides and located downstream and upstream in the rotational direction, respectively, the first side is set back further from the center than a position where the first and second sides meet.
摘要翻译：显影装置通过使用显影剂在图像载体上显影潜像。该装置包括面向图像载体的显影剂载体，并且构造成在磁性保持显影剂在其外周表面上的情况下旋转。该装置还包括沿显影剂载体的旋转方向伸长的磁性构件，以形成围绕外周表面的间隙。当从垂直于旋转轴线的方向观察时，磁性构件在显影剂载体的旋转轴线的方向上与显影区域的端部重叠。当靠近显影剂载体的中心的磁性构件的一侧被分成第一和第二侧并且分别位于旋转方向的下游和上游时，第一侧从中心延伸到比第一侧和第二边见面。

2. 发明授权

US07639973B2 Image forming apparatus with developer supply roller 有权
标题翻译：具有显影剂供应辊的图像形成装置
公开(公告)号：US07639973B2
公开(公告)日：2009-12-29
申请号：US11808881
申请日：2007-06-13
申请人： Tetsuo Sano , Yohei Nakade , Ichiro Demizu , Yoshikazu Aoki , Yuusuke Okuno
发明人： Tetsuo Sano , Yohei Nakade , Ichiro Demizu , Yoshikazu Aoki , Yuusuke Okuno
IPC分类号： G03G15/08
CPC分类号： G03G15/0808
摘要： An image forming apparatus has an electrostatic latent image bearing member capable of bearing an electrostatic latent image thereon, and a developer apparatus having a developer material for visualizing the electrostatic latent image into a visualized image. The developer apparatus includes a developer material bearing member, a housing adapted to accommodate a developer material, and a supply roller adapted to supply the developer material within the housing for the developer material bearing member. The supply roller has an outer circumferential foam layer. The foam layer is made of resin foam or rubber foam and has an air permeability of 5 ml/cm2/s or less, a density of 50-200 kg/m3, and a hysteresis loss ratio of 35-45%.
摘要翻译：图像形成装置具有能够在其上承载静电潜像的静电潜像承载部件和具有用于将静电潜像可视化为可视化图像的显影剂材料的显影装置。显影剂装置包括显影剂材料承载构件，适于容纳显影剂材料的壳体和适于将显影剂材料供应到用于显影剂材料承载构件的壳体内的供应辊。供给辊具有外周泡沫层。泡沫层由树脂泡沫或橡胶泡沫制成，透气度为5ml / cm2 / s以下，密度为50-200kg / m 3，滞后损失率为35-45％。

3. 发明申请

US20070258733A1 Developing device and image forming apparatus 有权
标题翻译：显影装置和图像形成装置
公开(公告)号：US20070258733A1
公开(公告)日：2007-11-08
申请号：US11785354
申请日：2007-04-17
申请人： Narutaka Yoshida , Tomohiro Kato , Yuusuke Okuno , Tomo Kitada
发明人： Narutaka Yoshida , Tomohiro Kato , Yuusuke Okuno , Tomo Kitada
IPC分类号： G03G15/08
CPC分类号： G03G15/0893 , G03G15/0877 , G03G2215/0132 , G03G2215/0841
摘要： A developing device has a bearing member that can bear a toner, a storing chamber for storing the toner, a waiting chamber disposed below the storing chamber for receiving the bearing member that can be filled with the toner and a buffer chamber positioned between the storing chamber and the waiting chamber for storing the developer material. A first horizontal connecting path connects upper portions of the storing and buffer chambers, and two second connecting paths connect lower portions of the buffer chamber and the waiting chamber. A feed member feeds toner from the storing chamber through the first connecting path into the buffer chamber. A first conveying member in the buffer chamber conveys the toner from one of the connecting paths to the other of the connecting paths, and a second conveying member in the waiting chamber conveys the toner within the waiting chamber in the opposite direction.
摘要翻译：显影装置具有可承载调色剂的支承构件，用于储存调色剂的储存室，设置在储存室下方的等待室，用于容纳可填充调色剂的轴承构件和位于储存室之间的缓冲室以及用于存储显影剂材料的等待室。第一水平连接路径连接存储和缓冲室的上部，并且两个第二连接路径连接缓冲室的下部和等待室。进料构件将来自储存室的调色剂通过第一连接路径进入缓冲室。缓冲室中的第一传送构件将调色剂从连接路径中的一个传送到另一个连接路径，等待室中的第二传送构件沿相反方向传送等待室内的调色剂。

4. 发明申请

US20120189349A1 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：开发设备和图像形成装置
公开(公告)号：US20120189349A1
公开(公告)日：2012-07-26
申请号：US13350076
申请日：2012-01-13
申请人： Yuusuke Okuno , Wataru Watanabe
发明人： Yuusuke Okuno , Wataru Watanabe
IPC分类号： G03G15/08
CPC分类号： G03G15/0893 , G03G15/0189 , G03G2215/0132
摘要： A trickle-type developing device comprising: a stirring and conveying tank provided with stirring and conveying screws that circulate the developer; a discharge member via which a part of the developer is conveyed from the tank to a discharge opening through which the developer is discharged, the discharge opening being provided in the discharge member; and a reverse flow generating screw provided inside a portion of the discharge member, sharing one of rotation shafts of the stirring and conveying screws, and pushing back a part of the developer, wherein the portion has a reduced-radius part and in a cross section thereof perpendicular to an axial direction of the one of rotation shafts, an inner radius of the portion is smaller in the reduced-radius part than in the remaining part, the reduced-radius part being located in a lower part of the portion with respect to a vertical direction of the portion.
摘要翻译：一种涓流型显影装置，包括：搅拌输送箱，设有搅拌和输送螺旋，使显影剂循环; 排出构件，一部分显影剂通过该排出构件从储罐输送到排放开口，显影剂通过该排出口排出，排出口设置在排出构件中; 以及设置在排出构件的一部分内的反向流动产生螺钉，共享搅拌和输送螺杆的旋转轴中的一个，并推回显影剂的一部分，其中该部分具有缩径半径部分和横截面其中所述部分的半径与所述一个旋转轴的轴向垂直，所述半径部分的内半径比其余部分小，所述缩径部分位于所述部分的下部相对于该部分的垂直方向。

5. 发明申请

US20070286647A1 Image forming apparatus with toner supplying roller 有权
标题翻译：具有调色剂供应辊的图像形成装置
公开(公告)号：US20070286647A1
公开(公告)日：2007-12-13
申请号：US11808880
申请日：2007-06-13
申请人： Tetsuo Sano , Yohei Nakade , Ichiro Demizu , Yoshikazu Aoki , Yuusuke Okuno , Takuya Okada
发明人： Tetsuo Sano , Yohei Nakade , Ichiro Demizu , Yoshikazu Aoki , Yuusuke Okuno , Takuya Okada
IPC分类号： G03G15/08
CPC分类号： G03G15/0808
摘要： A developing device has a developer bearing member, a housing adapted to accommodate a developer, and a supply roller adapted to supply the developer within the housing for the developer bearing member. The supply roller has an outer circumferencial foam layer made of resin or rubber. The foam layer has an air permeability of 150-200 ml/cm2/s, a hardness of 50-200 N, and an average cell density of 20-40 per 25 mm width.
摘要翻译：显影装置具有显影剂承载构件，适于容纳显影剂的壳体和适于将显影剂供应到用于显影剂承载构件的壳体内的供应辊。供料辊具有由树脂或橡胶制成的外周边泡沫层。泡沫层的透气度为150-200ml / cm 2 / s，硬度为50-200N，平均泡孔密度为25-40个/ 25mm宽。

6. 发明授权

US07860436B2 Image forming apparatus with toner supplying roller 有权
标题翻译：具有调色剂供应辊的图像形成装置
公开(公告)号：US07860436B2
公开(公告)日：2010-12-28
申请号：US11808880
申请日：2007-06-13
申请人： Tetsuo Sano , Yohei Nakade , Ichiro Demizu , Yoshikazu Aoki , Yuusuke Okuno , Takuya Okada
发明人： Tetsuo Sano , Yohei Nakade , Ichiro Demizu , Yoshikazu Aoki , Yuusuke Okuno , Takuya Okada
IPC分类号： G03G15/08 , G03G15/09 , G03G13/08 , B05C1/08 , F16C13/00
CPC分类号： G03G15/0808
摘要： A developing device has a developer bearing member, a housing adapted to accommodate a developer, and a supply roller adapted to supply the developer within the housing for the developer bearing member. The supply roller has an outer circumferencial foam layer made of resin or rubber. The foam layer has an air permeability of 150-200 ml/cm2/s, a hardness of 50-200 N, and an average cell density of 20-40 per 25 mm width.
摘要翻译：显影装置具有显影剂承载构件，适于容纳显影剂的壳体和适于将显影剂供应到用于显影剂承载构件的壳体内的供应辊。供料辊具有由树脂或橡胶制成的外周边泡沫层。泡沫层的透气度为150-200ml / cm 2 / s，硬度为50-200N，平均泡孔密度为25-40mm宽。

7. 发明授权

US07693463B2 Developing device and image forming apparatus 有权
标题翻译：显影装置和图像形成装置
公开(公告)号：US07693463B2
公开(公告)日：2010-04-06
申请号：US11785354
申请日：2007-04-17
申请人： Narutaka Yoshida , Tomohiro Kato , Yuusuke Okuno , Tomo Kitada
发明人： Narutaka Yoshida , Tomohiro Kato , Yuusuke Okuno , Tomo Kitada
IPC分类号： G03G15/08
CPC分类号： G03G15/0893 , G03G15/0877 , G03G2215/0132 , G03G2215/0841
摘要： A developing device has a bearing member that can bear a toner, a storing chamber for storing the toner, a waiting chamber disposed below the storing chamber for receiving the bearing member that can be filled with the toner and a buffer chamber positioned between the storing chamber and the waiting chamber for storing the developer material. A first horizontal connecting path connects upper portions of the storing and buffer chambers, and two second connecting paths connect lower portions of the buffer chamber and the waiting chamber. A feed member feeds toner from the storing chamber through the first connecting path into the buffer chamber. A first conveying member in the buffer chamber conveys the toner from one of the connecting paths to the other of the connecting paths, and a second conveying member in the waiting chamber conveys the toner within the waiting chamber in the opposite direction.
摘要翻译：显影装置具有可承载调色剂的支承构件，用于储存调色剂的储存室，设置在储存室下方的等待室，用于容纳可填充调色剂的轴承构件和位于储存室之间的缓冲室以及用于存储显影剂材料的等待室。第一水平连接路径连接存储和缓冲室的上部，并且两个第二连接路径连接缓冲室的下部和等待室。进料构件将来自储存室的调色剂通过第一连接路径进入缓冲室。缓冲室中的第一传送构件将调色剂从连接路径中的一个传送到另一个连接路径，等待室中的第二传送构件沿相反方向传送等待室内的调色剂。

8. 发明申请

US20090175636A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20090175636A1
公开(公告)日：2009-07-09
申请号：US12332664
申请日：2008-12-11
申请人： Toru Hayase , Kuniya Matsuura , Yuusuke Okuno , Kentaro Katori , Hiromasa Ueno , Hideaki Hayashi
发明人： Toru Hayase , Kuniya Matsuura , Yuusuke Okuno , Kentaro Katori , Hiromasa Ueno , Hideaki Hayashi
IPC分类号： G03G15/00 , G03G21/20 , G03G15/08
CPC分类号： G03G15/065 , G03G15/0887
摘要： To prevent image defects such as fog and irregularities caused by the accumulation of the oppositely charged toner by flying the toner toward a photoreceptor to compulsorily consume the toner even though the toner is oppositely charged toner having a small charged amount. A potential difference between the photoreceptor and the development roller is set at a value at which the normally charged toner on the development roller can be flown toward the photoreceptor in the development phase at the time of compulsorily consuming the toner, and this potential difference is set at a value at which the flown normally charged toner can be returned to the development roller in the recovery phase. A development duty and a frequency f are set in such a way that a time period in the development phase is larger than a time taken for the normally charged toner on the development roller to fly to a point located midway between the development roller and the photoreceptor and is smaller than a time taken for arriving at the photoreceptor, and a time period in the recovery phase is larger than a time taken before the normally charged toner arrived at the point located midway between the development roller and the photoreceptor arrives at the photoreceptor, returns to the development roller to beaten out the oppositely charged toner and the oppositely charged toner beaten out flies to the photoreceptor.
摘要翻译：为了防止由于相反充电的调色剂的积聚引起的图像缺陷，例如通过将调色剂朝向感光体飞行而强制消耗调色剂，即使调色剂具有相反电荷的带电量小的调色剂。感光体和显影辊之间的电位差被设定为在强制消耗调色剂时显影辊上的正常带电的调色剂能够在显影阶段中朝向感光体流动的值，并且设定该电位差在正常充电的调色剂可以在恢复阶段返回到显影辊的值。显影负荷和频率f被设定为使得显影阶段的时间段大于显影辊上的正常充电的调色剂飞行到位于显影辊和感光体之间的位置的时间并且小于到达感光体所需的时间，并且恢复阶段的时间段大于在正常充电的调色剂到达位于显影辊和感光体之间的位置到达感光体的时间，返回到显影辊，以殴打带相反电荷的调色剂，并将带相反电荷的调色剂扑灭到感光体中。

9. 发明申请

US20090010666A1 DEVELOPMENT APPARATUS, IMAGE FORMING APPARATUS AND DEVELOPMENT METHOD 有权
标题翻译：发展设备，图像形成装置和开发方法
公开(公告)号：US20090010666A1
公开(公告)日：2009-01-08
申请号：US12098009
申请日：2008-04-04
申请人： Yuusuke Okuno , Tomohiro Kato , Tomo Kitada , Toru Hayase
发明人： Yuusuke Okuno , Tomohiro Kato , Tomo Kitada , Toru Hayase
IPC分类号： G03G15/08
CPC分类号： G03G15/065 , G03G15/0808 , G03G2215/0634
摘要： The development apparatus that develops an electrostatic latent image formed on an image carrier comprises: a developer roller operable to carry toner on a circumferential surface thereof and develop the electrostatic latent image using the toner; a supply roller operable to perform toner supply to the developer roller; a voltage applier operable to apply a bias voltage V1 to the developer roller and apply a bias voltage V2 to the supply roller; and a controller operable to control the voltage applier in a toner compulsive consumption mode so that a value obtained by subtracting an average S2 of the bias voltage V2 per unit time from an average S1 of the bias voltage V1 per unit time indicates the same polarity as a normal charging polarity of the toner. Here, the toner compulsive consumption mode performs development to compulsively consume the toner carried on the circumferential surface of the developer roller.
摘要翻译：形成在图像载体上的静电潜像的显影装置包括：可操作地在其圆周表面上承载调色剂的显影辊，并使用调色剂显影静电潜像; 供应辊，其可操作以对所述显影辊进行调色剂供应; 电压施加器，其可操作以将偏置电压V1施加到所述显影辊，并将偏压V2施加到所述供应辊; 以及控制器，其可操作以在调色剂强制消耗模式下控制电压施加器，使得通过从每单位时间的偏置电压V1的平均值S1减去每单位时间的偏置电压V2的平均值得到的值表示与调色剂的正常充电极性。这里，调色剂强制消耗模式进行显影以强制地消耗承载在显影辊的圆周表面上的调色剂。

10. 发明授权

US08750764B2 Developing device and image forming apparatus 有权
标题翻译：显影装置和图像形成装置
公开(公告)号：US08750764B2
公开(公告)日：2014-06-10
申请号：US13350076
申请日：2012-01-13
申请人： Yuusuke Okuno , Wataru Watanabe
发明人： Yuusuke Okuno , Wataru Watanabe
IPC分类号： G03G15/08
CPC分类号： G03G15/0893 , G03G15/0189 , G03G2215/0132
摘要： A trickle-type developing device comprising: a stirring and conveying tank provided with stirring and conveying screws that circulate the developer; a discharge member via which a part of the developer is conveyed from the tank to a discharge opening through which the developer is discharged, the discharge opening being provided in the discharge member; and a reverse flow generating screw provided inside a portion of the discharge member, sharing one of rotation shafts of the stirring and conveying screws, and pushing back a part of the developer, wherein the portion has a reduced-radius part and in a cross section thereof perpendicular to an axial direction of the one of rotation shafts, an inner radius of the portion is smaller in the reduced-radius part than in the remaining part, the reduced-radius part being located in a lower part of the portion with respect to a vertical direction of the portion.
摘要翻译：一种涓流型显影装置，包括：搅拌输送箱，设有搅拌和输送螺旋，使显影剂循环; 排出构件，一部分显影剂通过该排出构件从储罐输送到排放开口，显影剂通过该排出口排出，排出口设置在排出构件中; 以及设置在排出构件的一部分内的反向流动产生螺钉，共享搅拌和输送螺杆的旋转轴中的一个，并推回显影剂的一部分，其中该部分具有缩径半径部分和横截面其中所述部分的半径与所述一个旋转轴的轴向垂直，所述半径部分的内半径比其余部分小，所述缩径部分位于所述部分的下部相对于该部分的垂直方向。

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