Patent ID: 7055932
Filing Date: 2006-06-06
Classification: B41J,H01L

Abstract:
1. A method of filling a liquid into a flow passage inside a function liquid droplet ejection head having an ejection nozzle formed in a nozzle forming surface of a head main body, comprising: bringing a cap connected to a suction pump into intimate contact with said nozzle forming surface; and filling a liquid of a liquid supply tank connected to said function liquid ejection head into said flow passage inside said function liquid droplet ejection head, wherein a liquid supply passage between said function liquid droplet ejection head and said liquid supply tank is temporarily closed in a course of filling the liquid into said flow passage inside said function liquid droplet ejection head while maintaining suction by said cap, wherein the liquid inside said liquid supply tank is sucked at least up to said cap, then said liquid supply passage is closed.