Patent ID: 7681990

Claim:
A liquid ejecting apparatus comprising: an element substrate including a member for constituting a liquid chamber for storing liquid, wherein the liquid chamber is in fluid communication with ejection outlets for ejecting liquid; a plurality of heaters, provided on said element substrate, for generating energy for ejecting the liquid through the ejection outlets, wherein, for each of the ejection outlets, one part of said heaters and another part of said heaters are switchably operable; and switching means for switching between a first mode in which the one part of said heaters is actuated as main heaters, and the other part of said heaters stands by as stand-by heaters, and a second mode in which the other part of said heaters is actuated as main heaters, and the one part of said heaters stands by as stand-by heaters, wherein the one part of said heaters and the other part of said heaters are disposed so as not to overlap with each other with respect to a direction perpendicular to a surface of said element substrate, and a center of gravity of the one part of said heaters and a center of gravity of the other part of said heaters are aligned with each other in a plane of said element substrate, and wherein surfaces of said heaters are protected by an anti-cavitation film comprising metal.