| 摘要 |
PURPOSE:To prevent the softening of toner and to stabilize an image by forming a duct for making air circulate and forcing the air to circulate. CONSTITUTION:The duct 15 for making the air to circulate is formed around a toner replenishing housing (including a tube part 12A) including a toner replenishing housing part (including a sealing member 2) to which a toner replenishing container 3 is connected so that the side of the connecting part may be the upstream side of the flow of the air. In such a case, a duct armoring member 16 surrounds the periphery of the toner replenishing housing 1, and the duct 15 is formed between the housing 1 and the member 16. Furthermore, a suction fan 17 is provided at the lower end of the member 16 and actuated to be rotated by the driving force of a motor. When the fan 17 is rotated, the air flows in from an aperture 19 at the upper end of the member 16 and passes through the duct 15, and gets out of a filter 18 to the outside of the member 16. Namely, the air is forcedly circulated in the duct 15. |
