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A fluid drop ejector adapted to eject droplets of a fluid includes a substrate having a fluid cavity defined therein, a flexible membrane supported by the substrate, and an actuator associated with the flexible membrane. The flexible membrane has an orifice defined therein which communicates with th

A fluid drop ejector adapted to eject droplets of a fluid includes a substrate having a fluid cavity defined therein, a flexible membrane supported by the substrate, and an actuator associated with the flexible membrane. The flexible membrane has an orifice defined therein which communicates with the fluid cavity and the actuator is adapted to deflect the flexible membrane relative to the substrate to eject droplets of the fluid through the orifice in response to an electrical signal applied to the actuator. A restriction is positioned within the fluid cavity opposite the orifice so as to define a confining region of the fluid cavity adjacent the orifice. As such, a perimeter of the restriction is spaced from a sidewall of the fluid cavity.

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1. A fluid drop ejector, comprising:a substrate having a fluid cavity defined therein; a flexible membrane supported by the substrate and having an orifice defined therein which communicates with the fluid cavity; an actuator associated with the flexible membrane and adapted to deflect the flexible

1. A fluid drop ejector, comprising:a substrate having a fluid cavity defined therein; a flexible membrane supported by the substrate and having an orifice defined therein which communicates with the fluid cavity; an actuator associated with the flexible membrane and adapted to deflect the flexible membrane relative to the substrate in response to an electrical signal; and a restriction positioned within the fluid cavity opposite the orifice, wherein the restriction defines a confining region of the fluid cavity adjacent the orifice, and wherein a perimeter of the restriction is spaced from a sidewall of the fluid cavity.