Medium stacking device

Abstract

A medium stacking device on which a medium discharged from a processing device is stacked includes a stacking unit on which a medium is stacked, the stacking unit extending in a first direction, wherein the stacking unit includes a supporting member configured to support a medium, and a first protruding member and a second protruding member each positioned on a respective side of the supporting member in a second direction different from the first direction, the supporting member includes a supporting surface that supports a medium, the first protruding member includes a first protruding surface that supports a medium, the second protruding member includes a second protruding surface that supports a medium, and the first protruding surface and the second protruding surface are positioned above the supporting surface.

Dependencies are inferred from the claim text.