Electrostatic actuator and liquid droplet ejecting head...

Details Electrostatic actuator and liquid droplet ejecting head... Electrostatic actuator and liquid droplet ejecting head...

2006-04-25

2006-04-25

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07033002

ABSTRACT:
A liquid droplet ejecting head includes: one or more nozzle holes ejecting liquid droplets; one or more pressure liquid chambers communicating with the nozzle holes and containing liquid to be ejected; a common liquid chamber communicating with the pressure liquid chambers; one or more diaphragms each forming a wall face of the corresponding pressure liquid chamber; one or more vibration chambers containing air gaps provided in contact with the diaphragms on the opposite side from the pressure liquid chambers; and one or more electrodes provided to oppose the diaphragms through the air gaps. The liquid droplet ejecting head further includes: a deformable plate whose deformation is greater than the total deformation of the diaphragms, the deformable plate forming a wall face of the common liquid chamber, and a pressure correcting chamber provided across the deformable plate from the common liquid chamber so as to communicate with the vibration chambers.

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