US Patent 7970338 Bookbinding device, bookbinding method, and printing device

A CPU of a bookbinding system sets one of a right-opening bookbinding mode for feeding a cover sheet on which a cover is laid out at the left of a spine portion thereof to create a right-opening book, and a left-opening bookbinding mode for feeding a cover sheet on which a cover is laid out at the right of the spine portion to create a left-opening book. Also, the bookbinding system controls a printer unit to invert a print sequence depending on whether the system is set in the right-opening bookbinding mode or is set in the left-opening bookbinding mode. The print sequence or inverted print sequence is set so that, of image data of multiple pages, print image data that should be the top page is arranged appropriately for creating a right-opening book or a left-opening book.