Oscillating transport unit for post-processing device

摘要

A post processing apparatus for processing image-recorded sheets, having: a transporting unit for transporting a booklet comprising a plurality of image-recorded sheets; a trimming section for trimming the booklet; and an oscillating mechanism for oscillating the transporting unit to change a transporting plane angle of the transporting unit; wherein, the oscillating mechanism oscillates the transporting unit to arrange a first transporting plane angle at the time when the transporting unit receives the booklet and a second transporting plane angle at the time when the transporting unit conveys the booklet to the trimming section different from each other.