公开(公告)号：US20120003014A1

公开(公告)日：2012-01-05

申请号：US13173928

申请日：2011-06-30

申请人： Kanji NAKAYAMA ,  Masayasu Haga ,  Tomohisa Yoshida ,  Wataru Onoda ,  Yoshiyuki Iguchi ,  Noboru Ito

发明人： Kanji NAKAYAMA ,  Masayasu Haga ,  Tomohisa Yoshida ,  Wataru Onoda ,  Yoshiyuki Iguchi ,  Noboru Ito

IPC分类号： G03G15/09

CPC分类号： G03G15/081 ,  G03G15/0812 ,  G03G15/09

摘要： A two-component developing device using a developer containing toner and magnetic carrier particles. The developing device comprises a housing, a developing roller, a magnetic field generator mounted inside the developing roller, and a developer restricting member, and further comprises a developer guide member providing a developer guide path for guiding the developer to the developer amount restricting clearance, providing a developer circulation path for circulating the developer to an upstream end of the guide member, and providing a communication path for bringing the developer guide path into communication with the developer circulation path, an upstream end of the guide member being positioned above the position of a peak of magnetic flux density of the magnetic pole of the magnetic field generator which is closest to a low-magnetic force area downstream of the low-magnetic force area or positioned upstream of such a position and downstream of the low-magnetic force area. An image forming device in which such a two-component developing device is employed as at least one developing device.

摘要翻译： 一种使用含有调色剂和磁性载体颗粒的显影剂的双组分显影装置。 显影装置包括壳体，显影辊，安装在显影辊内部的磁场发生器和显影剂限制构件，并且还包括显影剂引导构件，显影剂引导构件提供用于将显影剂引导至显影剂量限制间隙的显影剂引导路径， 提供用于使显影剂循环到引导构件的上游端的显影剂循环路径，并且提供用于使显影剂引导路径与显影剂循环路径连通的连通路径，引导构件的上游端位于 磁场发生器的磁极的磁通密度的峰值最靠近低磁力区域下游的低磁力区域或者位于低磁力区域的这个位置的下游。 使用这种双组分显影装置作为至少一个显影装置的图像形成装置。

公开(公告)号：US20120177415A1

公开(公告)日：2012-07-12

申请号：US13343157

申请日：2012-01-04

申请人： Tomohisa Yoshida ,  Masayasu Haga ,  Kanji Nakayama ,  Wataru Onoda ,  Narutaka Yoshida ,  Noboru Ito

发明人： Tomohisa Yoshida ,  Masayasu Haga ,  Kanji Nakayama ,  Wataru Onoda ,  Narutaka Yoshida ,  Noboru Ito

IPC分类号： G03G15/08

CPC分类号： G03G15/0813 ,  G03G15/0896

摘要： An image forming apparatus for forming a toner image on a print medium with a developer composed of toner and carriers, wherein when the first distance is longer than the second distance, an average gap between the first peripheral surface and a member that faces to the first peripheral surface in an area with a length of the first distance extending upstream from the closest point with respect to the specified direction is smaller than an average gap between the first peripheral surface and a member that faces to the first peripheral surface in an area with a length of the first distance extending downstream from the closest point with respect to the specified direction.

摘要翻译： 一种图像形成装置，用于在具有由调色剂和载体构成的显影剂的打印介质上形成调色剂图像，其中当所述第一距离长于所述第二距离时，所述第一周边表面和面向所述第一距离的构件之间的平均间隙 在相对于指定方向从最近点延伸上游的第一距离的长度的区域中的周边表面小于在第一周边表面和面向第一周边表面的部件之间的平均间隙 从相对于指定方向的最近点延伸下游的第一距离的长度。

公开(公告)号：US08639167B2

公开(公告)日：2014-01-28

申请号：US13173928

申请日：2011-06-30

申请人： Kanji Nakayama ,  Masayasu Haga ,  Tomohisa Yoshida ,  Wataru Onoda ,  Yoshiyuki Iguchi ,  Noboru Ito

发明人： Kanji Nakayama ,  Masayasu Haga ,  Tomohisa Yoshida ,  Wataru Onoda ,  Yoshiyuki Iguchi ,  Noboru Ito

IPC分类号： G03G15/095 ,  G03G15/08

CPC分类号： G03G15/081 ,  G03G15/0812 ,  G03G15/09

摘要： A two-component developing device using a developer containing toner and magnetic carrier particles. The developing device comprises a housing, a developing roller, a magnetic field generator mounted inside the developing roller, and a developer restricting member, and further comprises a developer guide member providing a developer guide path for guiding the developer to the developer amount restricting clearance, providing a developer circulation path for circulating the developer to an upstream end of the guide member, and providing a communication path for bringing the developer guide path into communication with the developer circulation path, an upstream end of the guide member being positioned above the position of a peak of magnetic flux density of the magnetic pole of the magnetic field generator which is closest to a low-magnetic force area downstream of the low-magnetic force area or positioned upstream of such a position and downstream of the low-magnetic force area. An image forming device in which such a two-component developing device is employed as at least one developing device.

摘要翻译： 一种使用含有调色剂和磁性载体颗粒的显影剂的双组分显影装置。 显影装置包括壳体，显影辊，安装在显影辊内部的磁场发生器和显影剂限制构件，并且还包括显影剂引导构件，显影剂引导构件提供用于将显影剂引导至显影剂量限制间隙的显影剂引导路径， 提供用于使显影剂循环到引导构件的上游端的显影剂循环路径，并且提供用于使显影剂引导路径与显影剂循环路径连通的连通路径，引导构件的上游端位于 磁场发生器的磁极的磁通密度的峰值最靠近低磁力区域下游的低磁力区域或者位于低磁力区域的这个位置的下游。 使用这种双组分显影装置作为至少一个显影装置的图像形成装置。

公开(公告)号：US20120177416A1

公开(公告)日：2012-07-12

申请号：US13344022

申请日：2012-01-05

申请人： Kanji NAKAYAMA ,  Masayasu Haga ,  Tomohisa Yoshida ,  Wataru Onoda ,  Narutaka Yoshida ,  Noboru Ito

发明人： Kanji NAKAYAMA ,  Masayasu Haga ,  Tomohisa Yoshida ,  Wataru Onoda ,  Narutaka Yoshida ,  Noboru Ito

IPC分类号： G03G15/08

CPC分类号： G03G15/0907 ,  G03G15/0928

摘要： An image forming apparatus, wherein the packing density at a closest point where the first peripheral surface and the second peripheral surface are the closest to each other is within a range from 0.3 to 0.4; wherein a maximum magnetic flux density of a principal magnetic pole for generating the magnetic field for development is located in an upstream side from the closest point with respect to the specified direction and at a point where the packing density is equal to or greater than 0.2; and wherein a magnetic flux density of the principal magnetic pole at a point where the packing density is 0.2 in a downstream side from the closest point with respect to the specified direction is equal to or less than ½ of a magnetic flux density of the principal magnetic pole at a point where the packing density is 0.2 in the upstream side.

摘要翻译： 一种图像形成装置，其中，所述第一周面和所述第二周面最接近的最靠近处的填充密度在0.3〜0.4的范围内; 其中用于产生用于显影的磁场的主磁极的最大磁通密度位于相对于指定方向的最近点的上游侧，并且在填充密度等于或大于0.2的点处; 并且其中，相对于规定方向从最近点起的下游侧的填充密度为0.2的点处的主磁极的磁通密度等于或小于主磁体的磁通密度的1/2 在上游侧的填充密度为0.2的点处。

公开(公告)号：US08942602B2

公开(公告)日：2015-01-27

申请号：US13726816

申请日：2012-12-26

申请人： Wataru Onoda ,  Tomohiro Kato ,  Tomohisa Yoshida ,  Dai Suwama ,  Hiroaki Takada

发明人： Wataru Onoda ,  Tomohiro Kato ,  Tomohisa Yoshida ,  Dai Suwama ,  Hiroaki Takada

IPC分类号： G03G15/08

CPC分类号： G03G15/0877 ,  G03G15/081 ,  G03G15/0921

摘要： A developing device having: a guide member creating a guide channel for guiding the developer being fed thereto while being supported on the developer support; and a regulating member regulating the amount of the developer that has passed through the guide channel, the guide member further creates a reflux channel in a gap from an inner surface of the housing, the reflux channel is connected to the guide channel via a communication channel such that the developer regulated by the regulating member returns toward an upstream end of the guide member, the upstream end of the guide member is disposed in a position opposed to the position where the magnetic flux density of the catch pole peaks, and the magnet assembly further includes a feeding pole that is disposed downstream of the catch pole and upstream of the developing pole, so as to be opposed to the guide channel.

摘要翻译： 一种显影装置，具有：引导构件，其形成用于引导被供给到其上的显影剂的引导通道，同时支撑在显影剂载体上; 以及调节部件，其调节已经通过所述引导通道的显影剂的量，所述引导部件还在所述壳体的内表面的间隙中形成回流通道，所述回流通道经由连通通道 使得由调节构件调节的显影剂朝向引导构件的上游端返回，引导构件的上游端设置在与捕获极的磁通密度峰值的位置相对的位置，并且磁体组件 进一步包括供给杆，其设置在所述止动杆的下游并且在所述显影极的上游，以与所述引导通道相对。

公开(公告)号：US08693929B2

公开(公告)日：2014-04-08

申请号：US13343157

申请日：2012-01-04

申请人： Tomohisa Yoshida ,  Masayasu Haga ,  Kanji Nakayama ,  Wataru Onoda ,  Narutaka Yoshida ,  Noboru Ito

发明人： Tomohisa Yoshida ,  Masayasu Haga ,  Kanji Nakayama ,  Wataru Onoda ,  Narutaka Yoshida ,  Noboru Ito

IPC分类号： G03G15/08

CPC分类号： G03G15/0813 ,  G03G15/0896

摘要： An image forming apparatus for forming a toner image on a print medium with a developer composed of toner and carriers, wherein when the first distance is longer than the second distance, an average gap between the first peripheral surface and a member that faces to the first peripheral surface in an area with a length of the first distance extending upstream from the closest point with respect to the specified direction is smaller than an average gap between the first peripheral surface and a member that faces to the first peripheral surface in an area with a length of the first distance extending downstream from the closest point with respect to the specified direction.

摘要翻译： 一种图像形成装置，用于在具有由调色剂和载体构成的显影剂的打印介质上形成调色剂图像，其中当所述第一距离长于所述第二距离时，所述第一外围表面和面向所述第一距离的构件之间的平均间隙 在相对于指定方向从最近点延伸上游的第一距离的长度的区域中的周边表面小于在第一周边表面和面向第一周边表面的部件之间的平均间隙 从相对于指定方向的最近点延伸下游的第一距离的长度。

公开(公告)号：US20130164045A1

公开(公告)日：2013-06-27

申请号：US13726816

申请日：2012-12-26

申请人： Wataru ONODA ,  Tomohiro KATO ,  Tomohisa YOSHIDA ,  Dai SUWAMA ,  Hiroaki TAKADA

发明人： Wataru ONODA ,  Tomohiro KATO ,  Tomohisa YOSHIDA ,  Dai SUWAMA ,  Hiroaki TAKADA

IPC分类号： G03G15/09

CPC分类号： G03G15/0877 ,  G03G15/081 ,  G03G15/0921

摘要： A developing device having: a guide member creating a guide channel for guiding the developer being fed thereto while being supported on the developer support; and a regulating member regulating the amount of the developer that has passed through the guide channel, the guide member further creates a reflux channel in a gap from an inner surface of the housing, the reflux channel is connected to the guide channel via a communication channel such that the developer regulated by the regulating member returns toward an upstream end of the guide member, the upstream end of the guide member is disposed in a position opposed to the position where the magnetic flux density of the catch pole peaks, and the magnet assembly further includes a feeding pole that is disposed downstream of the catch pole and upstream of the developing pole, so as to be opposed to the guide channel.

摘要翻译： 一种显影装置，具有：引导构件，其形成用于引导被供给到其上的显影剂的引导通道，同时支撑在显影剂载体上; 以及调节部件，其调节已经通过所述引导通道的显影剂的量，所述引导部件还在所述壳体的内表面的间隙中形成回流通道，所述回流通道经由连通通道 使得由调节构件调节的显影剂朝向引导构件的上游端返回，引导构件的上游端设置在与捕获极的磁通密度峰值的位置相对的位置，并且磁体组件 进一步包括供给杆，其设置在所述止动杆的下游并且在所述显影极的上游，以与所述引导通道相对。

公开(公告)号：US08824938B2

公开(公告)日：2014-09-02

申请号：US13344022

申请日：2012-01-05

申请人： Kanji Nakayama ,  Masayasu Haga ,  Tomohisa Yoshida ,  Wataru Onoda ,  Narutaka Yoshida ,  Noboru Ito

发明人： Kanji Nakayama ,  Masayasu Haga ,  Tomohisa Yoshida ,  Wataru Onoda ,  Narutaka Yoshida ,  Noboru Ito

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0907 ,  G03G15/0928

摘要： An image forming apparatus, wherein the packing density at a closest point where the first peripheral surface and the second peripheral surface are the closest to each other is within a range from 0.3 to 0.4; wherein a maximum magnetic flux density of a principal magnetic pole for generating the magnetic field for development is located in an upstream side from the closest point with respect to the specified direction and at a point where the packing density is equal to or greater than 0.2; and wherein a magnetic flux density of the principal magnetic pole at a point where the packing density is 0.2 in a downstream side from the closest point with respect to the specified direction is equal to or less than ½ of a magnetic flux density of the principal magnetic pole at a point where the packing density is 0.2 in the upstream side.

摘要翻译： 一种图像形成装置，其中，所述第一周面和所述第二周面最接近的最靠近处的填充密度在0.3〜0.4的范围内; 其中用于产生用于显影的磁场的主磁极的最大磁通密度位于相对于指定方向的最近点的上游侧，并且在填充密度等于或大于0.2的点处; 并且其中，相对于规定方向从最近点起的下游侧的填充密度为0.2的点处的主磁极的磁通密度等于或小于主磁体的磁通密度的1/2 在上游侧的填充密度为0.2的点处。