Patent ID: 8224232

Claim:
A bookbinding apparatus comprising: a glue coating device that coats glue on a back of a sheet bundle; a sheet bundle supporting device that supports the sheet bundle on which glue is coated; a cover sheet supporting device that supports a cover sheet; a moving device that moves at least one of the sheet bundle supporting device and the cover sheet supporting device, and thereby changes a distance between the back of the sheet bundle supported by the sheet bundle supporting device and the cover sheet supported by the cover sheet supporting device; and a control device that controls the moving device so that the cover sheet contacts the glue coated on the back of the sheet bundle with a distance D 1 between the back of the sheet bundle and the cover sheet, and thereafter the sheet bundle and the cover sheet contacting the glue coated on the back of the sheet bundle are supported with a distance D 2 between the back of the sheet bundle and the cover sheet, the distance D 2 being greater than the distance D 1 .