To enable stably feeding even sheets of large sizes while keeping a predetermined stacking position by enabling the sides of the sheets to be regulated even on an auxiliary table.

An auxiliary regulating plate 23 is provided which can be drawn out onto a side regulating plate 22 on a manual feed table 14 as an auxiliary table 21 is drawn out and which can slide against the auxiliary table 21 in combination with the side regulating plate 22, and the sides of sheets P stacked on the manual feed table 14 and the auxiliary table 21 can be regulated sufficiently by the cooperation of the side regulating plate 22 and the auxiliary side regulating plate 23 over a wide range that utilizes the length by which the auxiliary table 21 is drawn out.