| 摘要 |
PURPOSE:To efficiently execute waste heat without overheating an image forming device at a low cost and to take a stable action by providing a fan blade on a flywheel. CONSTITUTION:The flywheel 31 preventing irregularities in the rotation of a photosensitive drum 15 is attached to the top end of the rotary shaft 16 of the photosensitive drum 15 by an attaching member 32 fitted to one surface of the flywheel 31 with a tack 33. Then, the fan blade 30 is attached to the other surface of the flywheel 31 by the tack 33 and the blowing of air can be executed in the directions of the arrows A by the rotation of the photosensitive drum 15. Further, a large number of blowholes 12 are provided on a casing body 11 in tame vicinity of an electric substrate 17 and moreover, in positions corresponding to the blowing in the directions of the arrows A by the fan blade 30 attached to the flywheel 31. Therefore, the air which is heated by art electrical part, etc., around the electric substrate 17 by the flowing of the air and becomes light in weight rapidly flows out of the casing body 11 through the blowholes 12. |
