| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developer storage container in which a toner supply failure can be prevented when loaded in a main body of an image forming apparatus while securing sealability for preventing toner leakage through a developer outlet closed/opened by a shutter member and in which running cost can be reduced, and a powder supply device and the image forming apparatus including the developer container. <P>SOLUTION: A shutter member 34d has a loosening member 38 extending from the shutter member 34d into a developer outlet W so that the loosening member 38 can be moved integrally with the shutter member when the shutter member 34d is closed. In loading a developer storage container in a main body of an image forming apparatus, when the shutter member 34d is opened and moved, the loosening member 38 moves within the developer outlet W, then passes between a shutter seal 36 for preventing developer leakage through the developer outlet W and a wall part 34u forming a toner outlet W in a state of being displaced so as to be able to pass between the shutter seal 36 and the wall part 34u, and after the passage, the loosening member 38 restores from the displaced state to an extended state again. <P>COPYRIGHT: (C)2013,JPO&INPIT |
