| 摘要 |
PURPOSE:To prevent inner toner surely from being leaked to the external by fixing of both the end edges of a flexible sealing member for sealing an opening part of an inner cylinder at the disconnection of both the opening parts on the inner and outer cylinders. CONSTITUTION:Both the end edges of the sealing member 9 are fixed to the outside of the inner cylinder 1 adjacent to the opening part 4 and the inside of the outer cylinder 2 adjacent to the opening part 5. The sealing member 9 has width wider than the length of the opening part 4 of the inner cylinder 1 and length almost the same as the opening part 5 of the outer cylinder 2. The sealing member 9 covers the whole part of the opening part 4 disconnected with the opening part 5. Therefore, the toner charged from the opening part 4 to the inside of the inner cylinder 1 is surely prevented from leakage to the external. |
