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    • 1. 发明授权
    • Developing apparatus and image forming apparatus using same
    • 显影装置和使用它的成像装置
    • US08260175B2
    • 2012-09-04
    • US13253559
    • 2011-10-05
    • Tomoyuki IchikawaJunichi MatsumotoNobuo IwataNatsumi Katoh
    • Tomoyuki IchikawaJunichi MatsumotoNobuo IwataNatsumi Katoh
    • G03G15/08
    • G03G21/105
    • 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.
    • 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。
    • 5. 发明申请
    • IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND DEVELOPMENT DEVICE
    • 图像形成装置,处理盒和开发装置
    • US20080226349A1
    • 2008-09-18
    • US12048705
    • 2008-03-14
    • Nobuo IWATAJunichi MatsumotoTomoyuki IchikawaNatsumi Katoh
    • Nobuo IWATAJunichi MatsumotoTomoyuki IchikawaNatsumi Katoh
    • G03G15/10
    • G03G15/0893G03G15/0855G03G15/0865G03G2215/0822G03G2215/0838
    • An image forming apparatus includes a development device for supplying a developer containing toner and carrier to an electrostatic latent image carrying member for carrying thereon an electrostatic latent image, or a process cartridge for integrally storing the development device and the electrostatic latent image carrying member. The development device includes a conveyance path for charging and conveying the developer, and a developer carrying member for developing the electrostatic latent image into a toner image with the use of the developer conveyed through the conveyance path. The conveyance path includes a first conveyance member for receiving replenished toner and generating conveyance force for conveying the replenished toner and the developer in one direction, and a second conveyance member for generating conveyance force for conveying a portion of the developer conveyed by the first conveyance member in the opposite direction to the conveyance direction of the first conveyance member.
    • 图像形成装置包括用于将含有调色剂和载体的显影剂供给到用于承载静电潜像的静电潜像承载构件的显影装置或用于整体地存储显影装置和静电潜像承载构件的处理盒。 显影装置包括用于充电和输送显影剂的输送路径和用于通过使用通过输送路径输送的显影剂将静电潜像显影成调色剂图像的显影剂承载构件。 输送路径包括用于接收补充调色剂并产生用于沿一个方向输送补充调色剂和显影剂的输送力的第一输送构件,以及用于产生输送力的第二输送构件,用于输送由第一输送构件输送的显影剂的一部分 在与第一输送构件的输送方向相反的方向上。
    • 6. 发明授权
    • Developing apparatus and image forming apparatus using same
    • 显影装置和使用它的成像装置
    • US08139985B2
    • 2012-03-20
    • US12842058
    • 2010-07-23
    • Tomoyuki IchikawaJunichi MatsumotoNobuo IwataNatsumi Katoh
    • Tomoyuki IchikawaJunichi MatsumotoNobuo IwataNatsumi Katoh
    • G03G15/08
    • G03G21/105
    • 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].
    • 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]。
    • 8. 发明申请
    • DEVELOPING APPARATUS AND IMAGE FORMING APPARATUS USING SAME
    • 使用相同的开发设备和图像形成设备
    • US20070166079A1
    • 2007-07-19
    • US11622282
    • 2007-01-11
    • Tomoyuki IchikawaJunichi MatsumotoNobuo IwataNatsumi Katoh
    • Tomoyuki IchikawaJunichi MatsumotoNobuo IwataNatsumi Katoh
    • G03G15/08
    • G03G21/105
    • 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].
    • 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]。
    • 9. 发明授权
    • Image forming apparatus, process cartridge, and development device
    • 图像形成装置,处理盒和显影装置
    • US07912408B2
    • 2011-03-22
    • US12048705
    • 2008-03-14
    • Nobuo IwataJunichi MatsumotoTomoyuki IchikawaNatsumi Katoh
    • Nobuo IwataJunichi MatsumotoTomoyuki IchikawaNatsumi Katoh
    • G03G15/10G03G15/08
    • G03G15/0893G03G15/0855G03G15/0865G03G2215/0822G03G2215/0838
    • An image forming apparatus includes a development device for supplying a developer containing toner and carrier to an electrostatic latent image carrying member for carrying thereon an electrostatic latent image, or a process cartridge for integrally storing the development device and the electrostatic latent image carrying member. The development device includes a conveyance path for charging and conveying the developer, and a developer carrying member for developing the electrostatic latent image into a toner image with the use of the developer conveyed through the conveyance path. The conveyance path includes a first conveyance member for receiving replenished toner and generating conveyance force for conveying the replenished toner and the developer in one direction, and a second conveyance member for generating conveyance force for conveying a portion of the developer conveyed by the first conveyance member in the opposite direction to the conveyance direction of the first conveyance member.
    • 图像形成装置包括用于将含有调色剂和载体的显影剂供给到用于承载静电潜像的静电潜像承载构件的显影装置或用于整体地存储显影装置和静电潜像承载构件的处理盒。 显影装置包括用于充电和输送显影剂的输送路径和用于通过使用通过输送路径输送的显影剂将静电潜像显影成调色剂图像的显影剂承载构件。 输送路径包括用于接收补充调色剂并产生用于沿一个方向输送补充调色剂和显影剂的输送力的第一输送构件,以及用于产生输送力的第二输送构件,用于输送由第一输送构件输送的显影剂的一部分 在与第一输送构件的输送方向相反的方向上。