Liquid is discharged at a high frequency in a consecutive manner with a liquid discharge head having a movable member. A bubble formed for discharge a first discharged droplet grows large into a discharge port side by the movable substantially closing a common liquid chamber side in a bubble forming...http://www.google.com.au/patents/US6505903?utm_source=gb-gplus-sharePatent US6505903 - Method of discharging plural liquid droplets from single discharge port
