| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developer feeding device which has relatively high flexibility of layout without damaging developer, is relatively simple and compact, stably discharges developer from a developer container and stabilizes the toner concentration of the developer, and to provide a developer container, a developer and an image forming apparatus. <P>SOLUTION: The developer feeding device is equipped with the developer container 40Y configured such that a part or the whole thereof is deformable, and a pump 32 which sucks a developer contained in the developer container 40Y with gas and discharges the developer toward a development section 5Y. The developer comprises a toner and carrier. The toner has an additive formed in such a way that its volume average particle diameter is made 50-500 nm. The carrier is formed in such a way that its weight average particle diameter is made 20-60 μm. The developer is formed in such a way that its carrier concentration is made 1-30 mass%. <P>COPYRIGHT: (C)2008,JPO&INPIT |
