Patent ID: 8757791

Claim:
An image forming apparatus comprising: an inkjet image forming device to form an ink image on a surface of a recording sheet, a discharger to discharge the recoding sheet bearing the ink image in a sheet discharging direction in a face-down manner such that the ink image faces downward, and a stacker to stack the discharged recording sheet thereon, wherein the stacker includes: a first surface to deform a rear end portion of the recording sheet, and a second surface which has a surface to press a front end portion of the recording sheet and which is slanting so as to rise in the sheet discharging direction, wherein the first and second surfaces are arranged such that the first surface or an extended surface thereof intersects at an angle with the second surface or an extended surface thereof to form a line of intersection and such that when a front edge of the recording sheet discharged by the discharger reaches the second surface, a rear edge of the recording sheet has not yet been discharged by the discharger, and wherein an intersectional portion of the first surface and the second surface has a curvature smaller than a curvature of the rear end portion of the recording sheet just after the recording sheet is discharged from the discharger and stacked on the stacker, or a back clearance so that the rear end portion of the recording sheet is not contacted with the intersection.