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    • 91. 发明授权
    • Developing apparatus configured to prevent splashing of toner and carrier
    • 配置为防止调色剂和载体飞溅的显影装置
    • US06941090B2
    • 2005-09-06
    • US10460409
    • 2003-06-13
    • Keisuke UchidaSatoshi Hatori
    • Keisuke UchidaSatoshi Hatori
    • G03G15/01G03G15/08G03G15/09
    • G03G15/0942
    • A developing apparatus prevents or reduces splashing of toner and carrier caused by abnormal outward airflows generated at downstream positions of a developing unit casing thereof through interactions between behaviors of magnetic brushes and local portions of the developing unit casing. The developing apparatus includes a developer carrying member, a first permanent magnet, a developing unit casing, a second permanent magnet, which is built in the developer carrying member at a fixed position at the downstream side from the first permanent magnet with respect to the rotational direction of the developer carrying member. The developing unit casing has a concave structure to form a low pressure area at a position facing the second permanent magnet. The low pressure area suppresses an increase in the speed of the airflow therein that causes the abnormal outward airflows.
    • 显影装置通过磁刷的行为和显影单元壳体的局部部分之间的相互作用,防止或减少由显影单元壳体的下游位置产生的异常向外气流引起的调色剂和载体的飞溅。 显影装置包括显影剂承载构件,第一永磁体,显影单元壳体,第二永磁体,其相对于旋转体在第一永磁体的下游侧的固定位置处内置在显影剂承载构件中 显影剂承载构件的方向。 显影单元壳体具有凹形结构,以在面向第二永磁体的位置处形成低压区域。 低压区域抑制引起异常向外气流的气流的速度增加。
    • 94. 发明授权
    • Image forming apparatus
    • 具有调色剂通道出口密封磁场的图像形成装置
    • US06597881B2
    • 2003-07-22
    • US09976159
    • 2001-10-15
    • Satoshi HatoriTakeshi ShintaniShinichi NamekataShigekazu EnokiShinji KatoAkinori Kobayashi
    • Satoshi HatoriTakeshi ShintaniShinichi NamekataShigekazu EnokiShinji KatoAkinori Kobayashi
    • G03G1501
    • G03G15/0822G03G2215/0177
    • An image forming apparatus of the present invention includes an image carrier. A rotary developing device adjoins the image carrier and includes a plurality of developing sections for developing a latent image formed on the image carrier with a magnetic developer. A toner cartridge unit includes a plurality of toner cartridges and is rotatable integrally with the developing device. A plurality of toner conveying device each connect one toner cartridge to the associated developing section and each include a toner passage and a toner conveying member disposed in the toner passage. A magnet adjoins a toner outlet, which is formed in the toner passage and communicated to the developing section, for forming a magnetic field that traverses the toner passage over the entire diameter of the toner passage. Toner stored in each toner cartridge is prevented from unexpectedly flowing into the associated developing section when replenishment is not effected.
    • 本发明的图像形成装置包括图像载体。 旋转显影装置邻接图像载体,并且包括用磁性显影剂显影形成在图像载体上的潜像的多个显影部分。 调色剂盒单元包括多个调色剂盒,并且与显影装置一体地旋转。 多个调色剂输送装置将每个调色剂盒连接到相关联的显影部分,并且每个调色剂输送装置都包括调色剂通道和设置在调色剂通道中的调色剂传送部件。 磁体毗邻调色剂出口,该调色剂出口形成在调色剂通道中并与显影部分连通,以形成在调色剂通道的整个直径上穿过调色剂通道的磁场。 当不进行补货时,储存在每个墨粉盒中的墨粉被防止意外地流入相关的显影部分。