Medium discharge device, medium processing apparatus, and recording system

A medium discharge device comprising:

• a first tray having a first medium receiving surface for receiving a medium;
• a second tray having a second medium receiving surface for receiving the medium discharged from the first tray;
• a discharge section that discharges the medium disposed on the first tray to the second tray;
• and
• a push-down portion that is located downstream of a downstream end of the first medium receiving surface in a medium discharge direction, and that is located at a place deviated from the discharge section in a width direction that is a direction intersecting with the medium discharge direction, and pushes down a part in the width direction of an upstream end of the medium to be discharged in the medium discharge direction below the downstream end of the first medium receiving surface in the medium discharge direction, wherein
• the discharge section has a support portion that supports the medium and is displaceable between a retracted position located in the first tray and an advanced position advanced from the retracted position in the medium discharge direction from the first tray to the second tray and is located over the second tray, and
• the push-down portion pushes down the medium supported by the support portion located at the advanced position.