Device of supplying paper medium

A media feeding mechanism is provided, which reduces volume and weight of cassette and the paper currency storage. A media feeding mechanism supplies the paper medium from the automatic teller machine. The media feeding mechanism comprises the receiving part(110), the separation unit, and the presser portion(130). The receiving part accommodates the paper medium. The separation unit is positioned at the upper part of the front side of the receiving part. The separation unit picks up and ejects the paper medium upward. The presser portion comprises the block(134) and the plate(132). The position of the plate is adjustable to the top and bottom along the block.