Automated teller machine

An automated teller machine comprising:

• a main body including a customer service unit where a medium is inserted and taken out and a deposit/withdrawal unit where a medium is separated and stacked;
• and
• a tray configured to transfer the medium while reciprocating between the deposit/withdrawal unit and the customer service unit,
• wherein the tray includes:
• a tray body that is movable between the customer service unit and the deposit/withdrawal unit;
• a clamping plate provided at the tray body to be vertically movable to clamp the medium inserted into the tray body;
• and
• a clamping lever configured to move the clamping plate upward so that a medium stacking space into which the medium is inserted is generated in the tray body;
• and
• a link unit configured to move the clamping lever, wherein the link unit includes:
• a link member provided at the main body such that at least a part of the link member selectively supports the clamping lever;
• and a driving cam configured to lift/lower the link member,
• wherein the clamping plate includes an elevation protrusion that projects from a side portion thereof to be lifted by the clamping lever.