Patent ID: 7287835

Claim:
A liquid ejection head for ejecting droplets of solution in which charged particles are dispersed by exerting electrostatic force on the solution, comprising: an insulating ejection substrate including through holes for ejecting the droplets; ejection electrodes for exerting the electrostatic force on the solution, which are arranged to respectively correspond to the through holes; and solution guides that respectively pass through the through holes and protrude from the ejection substrate toward a droplet ejection side, wherein each of the solution guides includes a support portion of flat-plate shape and a tip end portion of flat-plate-shape that is extendingly provided to form a step at a predetermined position in a thickness direction in an end portion of the support portion and is thinner than the support portion, and wherein the solution guides are arranged so that the tip end portion is directed toward the droplet ejection side.