Patent ID: 8123333

Claim:
An image forming apparatus which forms an image by jetting liquid droplets of a liquid onto a recording medium, the apparatus comprising: a head unit which has, on a bottom wall of the head unit, a jetting head having a plurality of nozzles for jetting the liquid droplets, and which jets the liquid droplets from the nozzles onto the recording medium while moving in a scanning direction; a gas inlet port which is open through a side wall, the side wall being orthogonal to the scanning direction of the head unit, and via which a gas is taken into the head unit when the head unit moves in the scanning direction; and a pair of gas discharge ports which is open through the bottom wall of the head unit, at positions on both sides in a direction orthogonal to the scanning direction, to interpose the nozzles therebetween, and via which the gas, taken from the gas inlet port, is discharged toward the recording medium.