Patent ID: 7794785
Filing Date: 2010-09-14
Classification: B08B,B41J,B82Y,C09K,H01L

Abstract:
1. A method of cleaning a liquid droplet ejection apparatus having a passage including a liquid droplet ejection head and a conduit to feed an ink solution to the liquid droplet ejection head, the method comprising: filling the passage with water; replacing the water with a first solvent capable of dissolving both the water and a second solvent contained in the ink solution, and suctioning the water from the liquid droplet ejection head by a suction unit, the suction unit including a pump, the water being removed from the passage; and replacing the first solvent with the second solvent contained in the ink solution, and suctioning the first solvent from the liquid droplet ejection head by the pump of the suction unit, the first solvent being removed from the passage.