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Invention Grant
CN106415404B 显影设备及图像形成装置 有权

显影设备及图像形成装置
Abstract:
本发明抑制单独地驱动显影剂承载构件和搅拌构件的显影设备中的显影剂循环失衡。此外，本发明提供了一种防止诸如利用显影剂来涂覆所述显影剂承载构件的表面时的不适当涂覆的图像的有害效果的显影设备。显影设备的特征在于，在输出了电机(7，8)的停止信号中的较早的任一个停止信号之后、显影套筒(28)和搅拌螺杆(25)的旋转速度各自变成在图像形成期间的稳定状态下的旋转速度的1/2或更小期间，显影套筒(28)的旋转速度与搅拌螺杆(25)的旋转速度之间的比率α(E)，相对于在图像形成期间的稳定状态下显影套筒(28)的旋转速度与搅拌螺杆(25)的旋转速度之间比率α满足：0.7
Abstract(English):

A developing device includes a developing container accommodating a developer including toner and magnetic particles, a developer carrying member rotatably provided opposed to an opening of the developing container, a stirring member configured to stir the developer in the developing container to supply the developer to the developer carrying member, a first driving device configured to drive the developer carrying member, and a second driving device configured to drive the stirring member. A controller controls drive of the first driving device and the second driving device so that in a period from output of either earlier one of a stop signal of the first driving device and a stop signal of the second driving device to rotational speeds of both of the developer carrying member and the stirring member becoming not more than ½ of rotational speeds in a steady state during image formation.

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