Patent ID: 8366369

Claim:
A sheet finisher comprising: an adhesive coating section that coats an adhesive on a spine of a sheet bundle, the adhesive coating section comprising (i) an adhesive storing section that stores the adhesive, and (ii) a rotary adhesive supplying section for coating the adhesive, wherein the rotary adhesive supplying section takes the adhesive out from the adhesive storing section by rotating while touching the adhesive stored in the adhesive storing section; a movement mechanism that moves the adhesive coating section relatively to the spine of the sheet bundle in a longitudinal direction of the spine of the sheet bundle; and a control section that controls actions of the adhesive coating section and the movement mechanism, the control section including a storage section that stores a plurality of different time periods that are based on at least one of a sheet type and a sheet thickness, wherein the control section is operable to control the movement mechanism to move the adhesive coating section reciprocally and relatively with respect to the spine of the sheet bundle to perform multiple adhesive coatings, and is operable to conduct a preparation process that comprises controlling the rotary adhesive supplying section to rotate for a prescribed period of time, which is set by reading one of the time periods from the storage section, while not coating the adhesive on the spine of the sheet bundle, after completion of one of the multiple adhesive coatings and before beginning a next one of the multiple adhesive coatings, wherein in the preparation process the control section controls the rotary adhesive supplying section to rotate in a direction corresponding to a direction in which the adhesive coating section will move in the next one of the multiple adhesive coatings.