PURPOSE: To reduce the burden by customer, by performing required paging automatically and printing on page, when a customer only opens an arbitrary page of the bankbook and inserts to the pocket of the unit only.

CONSTITUTION: When the bankbook 20 is positioned, the bankbook guide lock 13 is removed from the bankbook guide 12 and it is activated toward clockwise with the spring, to enable to move the bankbook guide 12 counterclockwise. The retaining pad 10 is operated to depress the bankbook 20 to the turning roller 9. The turning roller 9 starts to rotate clockwise, separates the inner-paper of the bankbook by one sheet and gives slack to it. In this case, the bankbook guide 12 opens by being pushed with the inner-paper, and when this opening reaches a given amount, the detect or operates to stop the turning roller 9. When the turning roller 9 is again revolved after retrogressing the pad 10, since the tip of the inner-paper shields the sensor 15, the page is turned.