Patent ID: 7465031

Claim:
A liquid-ejection apparatus comprising: a liquid chamber for accommodating liquid to be ejected; a heating element arranged within the liquid chamber; and a nozzle for ejecting liquid from the liquid chamber, wherein energy is applied to the heating element for heating it so as to apply an ejection force to the liquid in the liquid chamber so as to eject a liquid droplet from the nozzle, wherein the heating element is comprised of two juxtaposed bubble-generating regions with substantially the same surface-shape and substantially the same heating characteristics, and wherein the ejection direction of the liquid droplet is controlled by applying differing energy densities to the two respective bubble-generating regions so that the bubble-generating time for the two bubble-generating regions differ, and wherein a range of deflection from the perpendicular of an ink droplet of a nozzle includes a target landing position in an adjacent ink pixel normally deposited via an ink droplet ejected from an adjacent nozzle.