Patent ID: 8303230

Claim:
A bookbinding apparatus for binding a book by coating adhesive on a spine of an aligned sheet bundle and pasting a cover sheet on the adhesive-coated spine, the bookbinding apparatus comprising: a coating section for coating adhesive on the spine of the sheet bundle with a variable coating thickness of the adhesive; a cover sheet pasting section for pasting a cover sheet on the adhesive-coated spine of the sheet bundle, and a control section including a timer configured to start timing when a coating process by the coating section is finished, wherein the control section is configured to determine a period of time T 1 from an end of the coating process to a start of pasting the cover sheet on the adhesive coated spine of the sheet bundle, on the basis of a thickness of the coated adhesive, to start an operation of the cover sheet pasting section when a value of the timer reaches the period of time T 1 , and to adjust a T 1 value to a higher or lower time based on the data of the current book thickness in a case where the current thickness of the sheet bundle compared to the prior thickness of the sheet bundle is of a higher thickness or a lower thickness respectively.