To easily move and set a paper sheet storage case to a normal position by providing a side fence and an end fence for supporting the paper sheet storage case within a paper feed tray in such a manner as to be movable.

A paper sheet storage case 2 is set on a paper feed tray 1, the paper feed tray 1 is further set on a paper feeding device body, and these are detected by a paper feed tray set detecting sensor and a paper sheet storage case set detecting sensor, respectively. Side fences 101, 102 and an end fence 103 are then operation-controlled to an arrowed direction B by a motor to move the paper sheet storage case 2 to a normal position on the paper feed tray 1. The upper plate 14 of the paper feed tray 1 is raised by a raising and lowering mechanism 20, and the bottom lid 15 of the paper sheet storage case 2 is raised to lay paper sheets 19 within the paper sheet storage case to the feedable state. At this time, the side fences 101, 102 and the end fence 103 support the paper sheet storage case 2 so as not to be shifted.