| 摘要 |
A sheet treatment apparatus has an image forming unit that forms images on a plurality of sheets, a booklet producing unit that produces a booklet by laying the plurality of sheets on top of one another and folding the plurality of sheets, the folded back of the booklet being pressed to flatten a spine of the booklet, and a control unit that controls the image forming unit to form the image in an image forming area of the sheet, in way that the closer the sheet is located to a booklet cover side, the farther an edge of the image forming area which is close to a center of a double pages spread is located away from the center of the double pages spread.
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