| 摘要 |
<p>A second shutter 32 is caused to slide in conjunction with a first shutter 22 which slides in the mounting direction in association with the mounting operation of a developing device 2 to an apparatus body 1. Accordingly, in association with the separating movement of the developing device from the apparatus body, the first shutter is caused to slide in association with the second shutter which slides in the separating direction, which is the opposite direction from the mounting direction. The direction that the second shutter opens a discharge port 31 is the same direction as the mounting direction. An urging force W20 that a first urging member 23 applies to the first shutter which closes an inlet port is smaller than an urging force W30 that the second urging member is applied to the second shutter which closes the discharge port.</p> |
