An arm motor control section controls the operation of an arm motor that drives an arm section for turning a page of a book by pressing an adhesion roller against the page, and a current detection section outputs a current limit notice upon detecting an overcurrent in the arm motor which is limited by a limiter. When a current limit notice is outputted in a page turning operation, a CPU drives and controls the arm motor to perform reverse rotation by the arm motor control section, and thereby controls a pressing period that is a locking period during which the adhesion roller is pressing the page.