According to this invention, in a manual feed apparatus having an opening/closing tray which can be stored in an image forming apparatus main body by swing operation, and a feedout member which feeds a sheet stacked on the opening/closing tray, the opening/closing tray is swingably connected to a vertically movable support member which is restricted to be movable in a vertical direction, and the apparatus includes a vertically movable unit which moves the vertically movable support member in the vertical direction.