Patent ID: 7900899
Filing Date: 2011-03-08
Classification: B42B,B42C,B65H

Abstract:
1. A sheet post-processing apparatus comprising: a taking-in portion configured to support sheets conveyed with leading edges of the sheets in a conveying direction directed downward in a standing position and release the support of the sheets; a folding portion configured to crease the sheets, which are supported by the taking-in portion, by pressing and releasing the creased sheets into the taking-in portion; a loading portion arranged under the taking-in portion to load the creased sheets conveyed from the taking-in portion; a stitching portion configured to stitch a sheet bundle loaded on the loading portion; and a controller configured to execute conveying of the sheets to the taking-in portion and creasing of the sheets supported on the taking-in portion by the folding portion during stitching of the creased sheet bundle loaded on the loading portion by the stitching portion, the controller switches switching between a first processing mode of supporting a plurality of sheets on the taking-in portion and then creasing simultaneously the plurality of sheets by the folding portion, and a second processing mode of creasing the sheet by the folding portion according to a kind of sheet conveyed, whenever one of the sheets is supported by the taking-in portion.