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    • 1. 发明授权
    • Image forming apparatus and image forming method
    • 图像形成装置及图像形成方法
    • US08532545B2
    • 2013-09-10
    • US12943336
    • 2010-11-10
    • Tomonari HokkyohTakashi SuzukiKoutarou YamadaKatsuhiro Akinaga
    • Tomonari HokkyohTakashi SuzukiKoutarou YamadaKatsuhiro Akinaga
    • G03G15/09
    • G03G15/0818G03G2215/0648
    • A developing device in an image forming apparatus includes: a first developer carrier that rotates in a same direction as a rotating direction of an image carrier of the image forming apparatus so as to supply developer to the image carrier; and a second developer carrier that rotates in a direction opposite to the rotating direction of the image carrier so as to supply the developer to the image carrier. The developing device simultaneously performs a refreshing operation of performing replacement of the developer and a filming removal operation of causing the image carrier to rotate idle while forming an image for use in the refreshing operation and causing the first and second developer carriers to rotate in their respective rotating directions.
    • 图像形成装置中的显影装置包括:第一显影剂载体,其沿与图像形成装置的图像载体的旋转方向相同的方向旋转,以将显影剂供应到图像载体; 以及第二显影剂载体,其沿与图像载体的旋转方向相反的方向旋转,以将显影剂供应到图像载体。 显影装置同时执行执行显影剂的更换的刷新操作以及使图像载体在形成用于刷新操作的图像的同时使图像载体旋转空转并使第一和第二显影剂载体各自旋转的成膜操作 旋转方向