A sheet feed table has a plurality of ribs formed on a surface thereof. The ribs extend in a sheet feeding direction and are disposed at a predetermined interval in a direction perpendicular to the sheet feeding direction. An air duct is provided between the adjacent ribs. An ink passage opening is formed in an image forming region where a print head moves to form an image. Disposed below the ink passage opening is an ink receiving chamber in which an ink absorber is disposed. A suction opening that communicates with the air duct is disposed upstream and downstream of the image forming region in the sheet feeding direction. A suction device is connected such that the air is sucked through the suction openings into a negative pressure chamber provided on an underside of the sheet feed table. The negative pressure chamber and the ink receiving chamber are separated from each other.