| 摘要 |
The toner cartridge comprises a container (4) whose lower part is shaped like a truncated cone with an inside diameter tapering off downwardly and at the bottom end of which a discharge opening (16) is formed. At least one partition wall (18) is disposed in the lower part of the container, having circular cross-sectional shape. One partition wall extends diametrically continuously on the inner peripheral surface of the lower part. A number of the partition walls project radially inwardly from the inner peripheral surface of the lower part, with spacing between them in the peripheral direction. At some sites with spacing in the peripheral direction, the peripheral wall itself in the lower part is projected inwardly radially to construct a number of partition walls (60). The inwardly projecting length of each of the partition walls is shorter than the inner radius of the lower part and there are none of the partition walls in the centre of the lower part. The toner cartridge has a shutter mechanism (6) constructed from a main member (20) fixed at the bottom end of the container (4) and a shutter member (22) mounted on the main member so as to be movable between a closing position and an opening position. When the shutter member is located at the closing position, a through-hole (28) in the main member and a passage (48) in shutter member are displaced from each other to close the discharge opening of the container. When the shutter member is situated at the opening position, the through-hole (28) and the passage are aligned with each other to open the discharge opening. |
