Patent ID: 6923438

Claim:
A delivered sheet stacking tray, comprising a delivered sheet stacking surface, provided on an upside of an image forming device so as to stack a sheet delivered from sheet delivering means of the image forming device, which extends in a direction in which the sheet is transported so that at least a transporting-direction end of the delivered sheet stacking surface is opened toward a lateral outside of the image forming device, wherein: the delivered sheet stacking surface has a sheet removing concave which extends from (a) the transporting-direction end via (b) a stacking area of a maximum size sheet to (c) a stacking area of a sheet smaller than the maximum size sheet so that the sheet removing concave is positioned within an area ranging from the stacking area of the maximum size sheet to the stacking area of the small size sheet, and the sheet removing concave is formed substantially in parallel to a line linking (ii) a corner portion of the stacking area of the maximum size sheet which corner portion is positioned on a downstream side in a transporting direction and on a front side of the image forming device to (i) a corner portion of the stacking area of the small size sheet which corner portion is positioned on the downstream side in the transporting direction and on the front side of the image forming device.