The pages in the original data are arranged and spread out in booklet format and printed on both sides of sheets. When the printed sheets are stacked and folded in two, the pages are arranged in the correct order.
In [Print Type:] in [Layout / Finish], select [Booklet].
In [Paper Size], select the finishing size when paper is folded as a booklet.
By selecting [Chapters] in [Layout / Finish] in combination with this function, you can place the specified page on the front side.