Patent ID: 8285194

Claim:
A bookbinding apparatus for coating adhesive on a sheet bundle comprising: an adhesive container that accommodates melted adhesive; a heater that heats the adhesive to melt; a temperature sensor configured to detect a temperature of the adhesive in the adhesive container; a stirring member that stirs the adhesive in the adhesive container; and a control section configured to perform the following operations: determine whether a coating of the adhesive is possible or not with reference to a threshold value temperature corresponding to a second temperature lower than a first temperature adequate for coating, based on the temperature detected by the temperature sensor; set a coating mode in which a temperature of the adhesive in the adhesive container is kept at the first temperature for the coating operation based on the temperature detected by the temperature sensor; set a shut-off mode in which the heater is turned off irrespective of the temperature detected by the temperature sensor; turn off the heater with a completion of the coating operation; continue a stirring operation by the stirring member for a period of time after the heater has been turned off in the shut-off mode; and stop the stirring operation by the stirring member thereafter.