Image-forming machine.

摘要

An image-forming machine is provided comprising a cleaning device for removing residual toner from an electrostatographic material. The cleaning device includes a toner collecting chamber 34, a toner conveying passage 36, a toner transferring means 38 for transferring toner received to one end of a toner recovery housing 32 and a toner conveying means 44 for conveying toner from the toner recovery housing to a toner collecting chamber 34 through the toner conveying passage 36. The toner transferring means comprise a rotating shaft 40 extending in the toner recovery housing 32 and adapted to be rotated in a predetermined direction. The toner conveying means 44 are formed as a coil extending in the toner conveying passage 36, where the winding direction of the coil 44 is such that when an end portion of the coil is rotated in said predetermined direction incident to the rotation of the rotating shaft, the coil is tensioned.