Patent ID: 7422311

Claim:
A liquid transport head comprising: a liquid passage-permitting mechanism; and a flow passage which has a liquid discharge port and which includes a first area and a second area formed on an inner wall which makes contact with a liquid, the second area being adjacent to the first area in a flow direction of the liquid and having liquid repellence higher than that of the first area, wherein the liquid, which is pressurized to move toward the liquid discharge port, is incapable of passing through the second area to move toward the liquid discharge port, and thus a bubble clogs the flow passage in the second area until the liquid passage-permitting mechanism selectively permits the pressurized liquid to pass through the second area, wherein the liquid passage-permitting mechanism includes: a first electrode which is formed at a position different from a position corresponding to the second area; an insulator which is formed as an inner wall of the flow passage in the second area; and a second electrode which is electrically connected to the insulator.