| 摘要 |
PURPOSE:To prevent toner from spilling at the time of attaching/detaching a recovering bottle and to improve the filling rate of toner in the recovering bottle by specifying the shapes of a bonding part at the tip of a transfer tube and the aperture part or a toner recovering box connected to the bonding part of the tube. CONSTITUTION:The transfer tube 3 is connected to a toner case 2 and a screw conveyor 4 for transferring toner is disposed from the bottom part of the toner case 2 to the tip part of the tube 3. The bonding part 3b whose inside diameter is 1.6 times as large as that of a transfer tube main body 3a is formed at the tip of the tube 3, and further the aperture part 5a of the toner recovering bottle 5 whose inside diameter is 1.6 times as large as that of the main body 3a is attachably/detachably attached to an annular projection 8a provided at an aperture part for supplying recovered toner. In the case of detaching the bottle 5, the bottle 5 is allowed to slide in a horizontal direction orthogonal to the axial direction of the conveyor 11. Thus, a sliding member 7 also slides interlocked with the sliding of the bottle 5, so that a shutter member closes the bonding part 3b of the tube 3. |
