Droplet discharge device and method of driving the same

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Reexamination Certificate

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C347S010000, C347S009000, C347S057000

Reexamination Certificate

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07628462

ABSTRACT:
In order to preserve good droplet discharge efficiency in a droplet discharge device, a plurality of timings are set within a period in which a plurality of droplets are to be discharged to a target position. Consecutive timings are divided by a cycle time of pressure wave that is generated inside a pressure chamber by transmitting a signal to an actuator. When a plurality of signals are applied to the actuator at consecutive timings, the peak of the pressure wave and the application of the signals are synchronous, and the droplet discharge efficiency will be improved. However, the consecutive number of timings at which the consecutive signals are transmitted is limited to a predetermined number. In this way, the pressure inside the pressure chamber can be prevented from becoming too high.

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European Search Report, EP Appl'n No. 06 00 3731 (Counterpart to U.S. Appl. No. 11/276,316) dated May 2, 2006.

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