公开(公告)号：US20070166079A1

公开(公告)日：2007-07-19

申请号：US11622282

申请日：2007-01-11

申请人： Tomoyuki Ichikawa ,  Junichi Matsumoto ,  Nobuo Iwata ,  Natsumi Katoh

发明人： Tomoyuki Ichikawa ,  Junichi Matsumoto ,  Nobuo Iwata ,  Natsumi Katoh

IPC分类号： G03G15/08

CPC分类号： G03G21/105

摘要： A developing apparatus using a two-component developer constituted by a magnetic carrier and a toner, and an image forming apparatus comprising the developing apparatus. A developing unit and a stirring unit are provided, and in order to suppress toner scattering that may occur after a development operation has been halted for a long time, and thereby suppress contamination of the apparatus interior, the developer in a developing machine is transferred to a stirrer serving as a developer storage unit on the exterior of the developing machine when the development operation ends. Further, to extend the life of the developer, a range in which an angle of a restricting member upstream side central angle α, which is a central angle of the surface of a developing roller serving as a developer carrier on the upstream side of a restricting member opposing position opposing a doctor blade serving as a developer amount restricting member in a surface motion direction of the developing roller, is not less than 0[°] and not more than 60[°] is set as a low magnetic flux density area γ in which the maximum value of a normal direction magnetic flux density on the surface of the developing roller is not more than 30 [mT].

摘要翻译： 使用由磁性载体和调色剂构成的双组分显影剂的显影装置和包括显影装置的图像形成装置。 提供了显影单元和搅拌单元，并且为了抑制显影操作长时间停止后可能发生的调色剂飞散，从而抑制了设备内部的污染，将显影机中的显影剂转印到 当显影操作结束时，用作显影机外部的显影剂储存单元的搅拌器。 此外，为了延长显影剂的使用寿命，可以将作为显影剂载体的显影辊的表面的中心角的限制构件的上游侧中心角α的角度限制在限制用的上游侧 与显影辊的表面移动方向上的显影剂量限制构件相对的刮刀相对的构件对置位置不小于0 [°]且不大于60 [°]设定为低磁通密度面积γ 其中显影辊表面上法向方向磁通密度的最大值不大于30 [mT]。

公开(公告)号：US08280281B2

公开(公告)日：2012-10-02

申请号：US13183472

申请日：2011-07-15

申请人： Tomoya Ohmura ,  Junichi Matsumoto ,  Nobuo Iwata ,  Natsumi Katoh

发明人： Tomoya Ohmura ,  Junichi Matsumoto ,  Nobuo Iwata ,  Natsumi Katoh

IPC分类号： G03G15/08

CPC分类号： G03G21/105 ,  G03G15/087 ,  G03G15/0877 ,  G03G15/0879 ,  G03G2215/0819 ,  G03G2215/0827 ,  G03G2215/085

摘要： The development device includes a development member and a circulation member. The development member develops an electrostatic latent image formed on a latent image carrier with a developer including toner and a carrier to make the electrostatic latent image visible. The circulation member receives the developer discharged from the development member and conveys the developer back to the development member. The circulation member includes a container provided upstream from the development member in a conveyance direction of the developer to store the developer. The container includes an agitator provided inside the container and agitates and mixes the developer and fresh toner supplied to the container. The agitator includes a rotatable agitation member in which one or more holes are formed through which the developer passes to mix the fresh toner and the developer to be agitated in the container.

摘要翻译： 显影装置包括显影元件和循环元件。 显影构件利用包含调色剂和载体的显影剂在潜像载体上形成静电潜像，以使静电潜像可见。 循环构件接收从显影构件排出的显影剂，并将显影剂传送回显影构件。 循环构件包括在显影剂的输送方向上设置在显影构件的上游以容纳显影剂的容器。 容器包括设置在容器内部的搅拌器，搅拌并混合显影剂和供应到容器的新鲜调色剂。 搅拌器包括可旋转搅拌构件，其中形成一个或多个孔，显影剂通过该孔，以将新鲜的调色剂和待搅拌的显影剂混合在容器中。

公开(公告)号：US20120070195A1

公开(公告)日：2012-03-22

申请号：US13253559

申请日：2011-10-05

申请人： Tomoyuki Ichikawa ,  Junichi Matsumoto ,  Nobuo Iwata ,  Natsumi Katoh

发明人： Tomoyuki Ichikawa ,  Junichi Matsumoto ,  Nobuo Iwata ,  Natsumi Katoh

IPC分类号： G03G15/08

CPC分类号： G03G21/105

摘要： A developing apparatus for an image forming apparatus. In order to suppress toner scattering that may occur after a development operation has been halted for a long time, the developer is transferred to a developer storage unit on the exterior of the developing machine when the development operation ends. A range in which an angle of a restricting member upstream side central angle α, which is a central angle of the surface of a developing roller on the upstream side of a restricting member opposing position opposing a developer amount restricting member in a surface motion direction of the developing roller, is not less than 0° and not more than 60° is set as a low magnetic flux density area γ in which the maximum value of a normal direction magnetic flux density on the surface of the developing roller is not more than 30 mT.

摘要翻译： 一种用于图像形成装置的显影装置。 为了抑制显影操作长时间停止后可能发生的调色剂飞散，当显影操作结束时，显影剂转移到显影机外部的显影剂储存单元。 限制构件上游侧中心角α的角度的范围，该限制构件的上游侧中心角α是显影辊的表面的表面移动方向上的与限制构件相对的位置的相对位置的上游侧的表面的中心角 显影辊不小于0°且不大于60°被设定为低磁通密度区域γ，其中显影辊表面上的法向方向磁通密度的最大值不大于30 公吨。

公开(公告)号：US20090123174A1

公开(公告)日：2009-05-14

申请号：US12256998

申请日：2008-10-23

申请人： Nobuo IWATA ,  Junichi Matsumoto ,  Natsumi Katoh ,  Tomoya Ohmura

发明人： Nobuo IWATA ,  Junichi Matsumoto ,  Natsumi Katoh ,  Tomoya Ohmura

IPC分类号： G03G21/20

CPC分类号： G03G21/206 ,  G03G15/0879 ,  G03G15/0887

摘要： An image forming apparatus and method for developing a latent image on an image bearing member includes the image bearing member, an air flow generator, and an air intake device. The image bearing member is configured to bear the latent image on the surface thereof. The airflow generator is configured to generate airflow to transport a developer. The air intake device is configured to connect outside the image forming apparatus with the airflow generator to draw air from outside the image forming apparatus to supply the air to the airflow generator.

摘要翻译： 用于在图像承载部件上显影潜像的图像形成装置和方法包括图像承载部件，气流发生器和进气装置。 图像承载部件构造成在其表面上承载潜像。 气流发生器被配置成产生气流以运输显影剂。 进气装置被构造成在图像形成装置外部与气流发生器连接以从图像形成装置外部抽取空气，以将空气供应到气流发生器。

公开(公告)号：US20080298845A1

公开(公告)日：2008-12-04

申请号：US12130092

申请日：2008-05-30

申请人： Tomoya OHMURA ,  Junichi Matsumoto ,  Nobuo Iwata ,  Natsumi Katoh

发明人： Tomoya OHMURA ,  Junichi Matsumoto ,  Nobuo Iwata ,  Natsumi Katoh

IPC分类号： G03G15/08

CPC分类号： G03G21/105 ,  G03G15/087 ,  G03G15/0877 ,  G03G15/0879 ,  G03G2215/0819 ,  G03G2215/0827 ,  G03G2215/085

摘要： The development device includes a development member and a circulation member. The development member develops an electrostatic latent image formed on a latent image carrier with a developer including toner and a carrier to make the electrostatic latent image visible. The circulation member receives the developer discharged from the development member and conveys the developer back to the development member. The circulation member includes a container provided upstream from the development member in a conveyance direction of the developer to store the developer. The container includes an agitator provided inside the container and agitates and mixes the developer and fresh toner supplied to the container. The agitator includes a rotatable agitation member in which one or more holes are formed through which the developer passes to mix the fresh toner and the developer to be agitated in the container.

摘要翻译： 显影装置包括显影元件和循环元件。 显影构件利用包含调色剂和载体的显影剂在潜像载体上形成静电潜像，以使静电潜像可见。 循环构件接收从显影构件排出的显影剂，并将显影剂传送回显影构件。 循环构件包括在显影剂的输送方向上设置在显影构件的上游以容纳显影剂的容器。 容器包括设置在容器内部的搅拌器，搅拌并混合显影剂和供应到容器的新鲜调色剂。 搅拌器包括可旋转搅拌构件，其中形成一个或多个孔，显影剂通过该孔，以将新鲜的调色剂和待搅拌的显影剂混合在容器中。

公开(公告)号：US08175488B2

公开(公告)日：2012-05-08

申请号：US12256998

申请日：2008-10-23

申请人： Nobuo Iwata ,  Junichi Matsumoto ,  Natsumi Katoh ,  Tomoya Ohmura

发明人： Nobuo Iwata ,  Junichi Matsumoto ,  Natsumi Katoh ,  Tomoya Ohmura

IPC分类号： G03G21/20 ,  G03G15/08

CPC分类号： G03G21/206 ,  G03G15/0879 ,  G03G15/0887

摘要： An image forming apparatus and method for developing a latent image on an image bearing member includes the image bearing member, an air flow generator, and an air intake device. The image bearing member is configured to bear the latent image on the surface thereof. The airflow generator is configured to generate airflow to transport a developer. The air intake device is configured to connect outside the image forming apparatus with the airflow generator to draw air from outside the image forming apparatus to supply the air to the airflow generator.

摘要翻译： 用于在图像承载部件上显影潜像的图像形成装置和方法包括图像承载部件，气流发生器和进气装置。 图像承载部件构造成在其表面上承载潜像。 气流发生器被配置成产生气流以运输显影剂。 进气装置被构造成在图像形成装置外部与气流发生器连接以从图像形成装置外部抽取空气，以将空气供应到气流发生器。

公开(公告)号：US08112016B2

公开(公告)日：2012-02-07

申请号：US12126441

申请日：2008-05-23

申请人： Junichi Matsumoto ,  Nobuo Iwata ,  Natsumi Katoh ,  Tomoya Ohmura

发明人： Junichi Matsumoto ,  Nobuo Iwata ,  Natsumi Katoh ,  Tomoya Ohmura

IPC分类号： G03G15/08

CPC分类号： G03G15/0879 ,  G03G15/087 ,  G03G15/0877 ,  G03G2215/0685 ,  G03G2215/0819 ,  G03G2215/0841

摘要： A development agent circulation unit includes a development unit, an agitation unit, and a rotary feeder. The development unit develops a latent image on an image carrier using a developing agent. The agitation unit agitates developing agent recovered from the development unit. The rotary feeder receives the developing agent from the agitation unit and discharges the developing agent in predetermined discrete amounts. The discharged developing agent is transported to the development unit using a gas stream. The rotary feeder includes a rotor and a stator having a clearance “t” between the rotor and the stator. The clearance “t” satisfies a relation “t

摘要翻译： 显影剂循环单元包括显影单元，搅拌单元和旋转进料器。 显影单元使用显影剂在图像载体上显影潜像。 搅拌单元搅拌从显影单元回收的显影剂。 旋转进料器从搅拌装置接收显影剂，并以预定的离散量排出显影剂。 排出的显影剂使用气流输送到显影单元。 旋转给料机包括转子和在转子和定子之间具有间隙“t”的定子。 间隙“t”满足关系“t <2D”，其中D表示显影剂粒径，显影剂的调色剂颗粒的调色剂颗粒直径dt和显影剂的载体颗粒的载体粒径dc 满足关系D = dc + 2dt。

公开(公告)号：US20110268478A1

公开(公告)日：2011-11-03

申请号：US13183472

申请日：2011-07-15

申请人： Tomoya Ohmura ,  Junichi Matsumoto ,  Nobuo Iwata ,  Natsumi Katoh

发明人： Tomoya Ohmura ,  Junichi Matsumoto ,  Nobuo Iwata ,  Natsumi Katoh

IPC分类号： G03G15/08

CPC分类号： G03G21/105 ,  G03G15/087 ,  G03G15/0877 ,  G03G15/0879 ,  G03G2215/0819 ,  G03G2215/0827 ,  G03G2215/085

摘要： The development device includes a development member and a circulation member. The development member develops an electrostatic latent image formed on a latent image carrier with a developer including toner and a carrier to make the electrostatic latent image visible. The circulation member receives the developer discharged from the development member and conveys the developer back to the development member. The circulation member includes a container provided upstream from the development member in a conveyance direction of the developer to store the developer. The container includes an agitator provided inside the container and agitates and mixes the developer and fresh toner supplied to the container. The agitator includes a rotatable agitation member in which one or more holes are formed through which the developer passes to mix the fresh toner and the developer to be agitated in the container.

摘要翻译： 显影装置包括显影元件和循环元件。 显影构件利用包含调色剂和载体的显影剂在潜像载体上形成静电潜像，以使静电潜像可见。 循环构件接收从显影构件排出的显影剂，并将显影剂传送回显影构件。 循环构件包括在显影剂的输送方向上设置在显影构件的上游以容纳显影剂的容器。 容器包括设置在容器内部的搅拌器，搅拌并混合显影剂和供应到容器的新鲜调色剂。 搅拌器包括可旋转搅拌构件，其中形成一个或多个孔，显影剂通过该孔，以将新鲜的调色剂和待搅拌的显影剂混合在容器中。

公开(公告)号：US07953350B2

公开(公告)日：2011-05-31

申请号：US11613969

申请日：2006-12-20

申请人： Junichi Matsumoto ,  Natsumi Katoh ,  Nobuo Iwata ,  Tomoyuki Ichikawa

发明人： Junichi Matsumoto ,  Natsumi Katoh ,  Nobuo Iwata ,  Tomoyuki Ichikawa

IPC分类号： G03G15/08

CPC分类号： G03G15/0848 ,  G03G15/0849 ,  G03G15/0877 ,  G03G15/0879 ,  G03G2215/0822

摘要： A developing device including a development part for developing latent images to toner images. The developing device also includes an agitation part that agitates developer, and a controller, which controls an agitation strength of an agitator in the agitation part. The developer circulates between the development part and the agitation part.

摘要翻译： 一种显影装置，包括用于将潜像显影到调色剂图像的显影部分。 显影装置还包括搅拌显影剂的搅拌部分和控制搅拌部分中的搅拌器的搅拌强度的控制器。 显影剂在显影部分和搅拌部分之间循环。

公开(公告)号：US20100290815A1

公开(公告)日：2010-11-18

申请号：US12842058

申请日：2010-07-23

申请人： Tomoyuki Ichikawa ,  Junichi Matsumoto ,  Nobuo Iwata ,  Natsumi Katoh

发明人： Tomoyuki Ichikawa ,  Junichi Matsumoto ,  Nobuo Iwata ,  Natsumi Katoh

IPC分类号： G03G15/08

CPC分类号： G03G21/105

摘要： A developing apparatus using a two-component developer constituted by a magnetic carrier and a toner, and an image forming apparatus comprising the developing apparatus. A developing unit and a stirring unit are provided, and in order to suppress toner scattering that may occur after a development operation has been halted for a long time, and thereby suppress contamination of the apparatus interior, the developer in a developing machine is transferred to a stirrer serving as a developer storage unit on the exterior of the developing machine when the development operation ends. Further, to extend the life of the developer, a range in which an angle of a restricting member upstream side central angle α, which is a central angle of the surface of a developing roller serving as a developer carrier on the upstream side of a restricting member opposing position opposing a doctor blade serving as a developer amount restricting member in a surface motion direction of the developing roller, is not less than 0[°] and not more than 60[°] is set as a low magnetic flux density area γ in which the maximum value of a normal direction magnetic flux density on the surface of the developing roller is not more than 30 [mT].

摘要翻译： 使用由磁性载体和调色剂构成的双组分显影剂的显影装置和包括显影装置的图像形成装置。 提供了显影单元和搅拌单元，并且为了抑制显影操作长时间停止后可能发生的调色剂飞散，从而抑制了设备内部的污染，将显影机中的显影剂转印到 当显影操作结束时，用作显影机外部的显影剂储存单元的搅拌器。 此外，为了延长显影剂的使用寿命，可以将限制构件的上游侧中心角α的角度作为限制构件的上游侧的显影辊的表面的中心角的范围 与显影辊的表面移动方向相对的作为显影剂量限制构件的刮刀相对的构件对置位置不小于0 [°]且不大于60 [°]设定为低磁通密度面积γ 其中显影辊表面上法向方向磁通密度的最大值不大于30 [mT]。