| 摘要 |
PROBLEM TO BE SOLVED: To provide a waste developer collecting device for an image forming apparatus which suppresses a conveyance tube from being clogged with waste toner even when the cross-sectional area of the conveyance tube can not be sufficiently secured. SOLUTION: The waste developer collecting device for image forming apparatus is equipped with: a waste toner collecting container 110 storing the toner removed from the surfaces of photoreceptor drums 40, 50, 60 and 70 provided in a plurality of image forming units 4, 5, 6 and 7 respectively; a common conveyance tube 133 provided to convey the toner removed from the respective photoreceptor drums to the waste toner collecting container 110; and a conveying spiral 143 provided in the common conveyance tube 133 so as to convey the toner. The common conveyance tube 133 has aperture parts 133B, 133Y, 133C and 133M receiving the toner removed from the respective photoreceptor drums in its longitudinal direction. The waste toner collecting container 110 is arranged between the aperture part 133B and the aperture part 133M provided at both ends of the plurality of aperture parts. COPYRIGHT: (C)2009,JPO&INPIT |
