| 摘要 |
An image forming apparatus integrally having a sheet post-processing apparatus comprises a center folding unit for creasing, on a convey path for conveying image-bearing paper sheets or the like one by one in a predetermined direction, the paper sheet or the like in a direction perpendicular to the convey direction of the paper sheets, a stack unit which has an angular shape and on which a paper sheet of the like is stacked, a first convey unit for conveying a paper sheet or the like, in an open state, on which a crease is produced by the center folding unit, and stacking a predetermined number of paper sheets or the like on the stack unit for every operation, a convey assistance unit provided near a top portion the stack unit, a saddle stitching unit for forming a predetermined number of paper sheets or the like stacked on the stack unit into a booklet (sheet bundle) by binding the paper sheets or the like at the crease, a second convey unit for conveying the saddle-stitched booklet in a two-folded state, a cutting unit for performing a cutting process so as to align edges of the two-folded booklet, and a discharging unit for discharging the two-folded booklet outside the apparatus after the cutting process.
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