An exit tray of an image forming apparatus having printing and scanning functions is adapted to stackably receive sheets of printed paper and scanned documents exiting from the body. The exit tray is insertable in and removable from the body of the image forming apparatus. The exit tray includes a first plate that is insertable in the body. A second plate is separable from the first plate by a predetermined distance, and may approach the first plate. Printed sheets of paper exiting from the body are stacked on either the first plate or the second plate. Scanned documents exiting from the body are stacked on the plate not receiving the printed sheets of paper.