Sheet conveying device

A sheet conveying device comprising:

• a tray;
• a conveying unit configured to convey a sheet to the tray in a conveying direction;
• a wall member having a first surface and a second surface opposite to the first surface, the first surface and the tray defining a first space;
• a structural member having a facing surface which faces the second surface of the wall member;
• and
• a frame having a wall surface which defines, together with the second surface of the wall member and the facing surface of the structural member, a second space;
• wherein the wall member has a plurality of through holes formed therethrough and including a first through hole and a second through hole which are located at different positions in the conveying direction, and a first imaginary plane extending in the conveying direction and containing an edge of the first through hole in the second surface is away from the facing surface of the structural member by a first distance, and a second imaginary plane extending in the conveying direction and containing an edge of the second through hole in the second surface is away from the facing surface by a second distance which is different from the first distance.