US Patent 7955040 Cutting device, finisher and image forming apparatus provided therewith

A cutting device that cuts an edge portion of a sheet bundle to an even length, in which a plurality of sheet have been stacked, using a cutting blade, the cutting device includes: a paddle shaft capable of being rotated, which is connected to a drive source provided in the vicinity of the cutting blade; and a plurality of paddles provided on the paddle shaft in a rotary axis direction thereof; wherein the plurality of paddles are arranged in a single line with the same phase as each other on the paddle shaft.