SHEET-STAPLING APPARATUS THAT STAPLES CENTER-FOLDED SHEETS BY STAPLE, AND IMAGE-FORMING SYSTEM USING THE SAME

摘要

A sheet-stapling apparatus mounts a center-folded booklet and staples the booklet at a fold of the booklet by a staple. The sheet-stapling apparatus has a supporting member that mounts the center-folded booklet, a pushing member that pushes the booklet to the supporting member, a stapler that penetrates the staple through the booklet and a clincher that clinches legs of the staple to bind the booklet. The pushing member has a groove that pushes the fold of the booklet and maintains the fold of the booklet at a pushing angle. The supporting member forms the space between the clincher and the booklet.