| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developing device in which toner in a toner feeding route is not solidified. <P>SOLUTION: A toner loosening member 31 is rotated together with a third screw shaft 13, toner in a feeding port 26a of the toner feeding route 26 and toner in the vicinity of the inner peripheral surface of the toner feeding route 26 are agitated by the toner loosening member 31, and toner lumps from a toner cartridge 27 and developer lumps existing in the vicinity of the inner peripheral surface of the toner feeding route 26 are loosened to accelerate smooth agitation of a developer and to prevent toner lumps or developer lumps from being solidified. <P>COPYRIGHT: (C)2007,JPO&INPIT |
