Inkjet printing apparatus and printing method using the same

An inkjet printing method, comprising:

• preparing an ink jetting unit that jets ink to a substrate, a stage that movably supports the substrate relative to the ink jetting unit, and a pair of air-conditioning units arranged at front and rear ends of the ink jetting unit in a direction in which the stage is moved, the air-conditioning units each including a suction unit arranged in an inner portion with respect to the ink jetting unit and an air blowing unit that includes an internal air blowing unit and an external air blowing unit arranged in an outer portion with respect to the suction unit;
• moving the stage relative to the ink jetting unit in one direction;
• forming a thin film on the substrate by jetting ink by using the ink jetting unit;
• forming an air curtain in front of and at the back of an inkjet space between the ink jetting unit and the substrate by jetting air by using the air blowing units;
• and
• absorbing residues of the ink that did not contribute to forming of the thin film by using the suction unit and discharging the residues of the ink to the outside,
• wherein the air blowing unit includes an internal air blowing unit and an external air blowing unit.