| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide: a two-component developing device capable of improving the service life and cleaning efficiency of a developing sleeve cleaning member; a process cartridge including this; and an image forming apparatus for mounting the process cartridge. <P>SOLUTION: In the two-component developing device using a developer including a toner and a magnetic carrier, at defined job end time, the driving of at least a stirring mechanism 3 becomes off, and a developer is dropped into a developing casing 20 by a developer end pole 4 by continuing the ON state of a developer carrier 1 for a predetermined time. When a movable developing sleeve cleaning member 18 for covering the longitudinal direction of a developing sleeve 7 installed in the developing casing comes into contact with a surface of the developing sleeve 7, the developer carrier 1 is put into the ON state for the predetermined time again and the developing sleeve 7 is rotated. <P>COPYRIGHT: (C)2011,JPO&INPIT |
