Liquid drop expelling head and image forming device provided...

Incremental printing of symbolic information – Ink jet – Controller

Reexamination Certificate

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Details

C347S070000

Reexamination Certificate

active

07918520

ABSTRACT:
There is provided a liquid drop expelling head including: a driving element generating a pressure wave at a liquid within a pressure chamber, and expelling a liquid drop from a nozzle which communicates with the pressure chamber; and a control section applying a driving waveform based on image information to the driving element, and controlling a preparatory waveform, which vibrates a meniscus of the nozzle, on the basis of one of a liquid drop expulsion standby time and a liquid drop amount of a first drop at a time of starting expulsion again.

REFERENCES:
patent: 6151050 (2000-11-01), Hosono et al.
patent: 6354685 (2002-03-01), Ohashi
patent: 6488354 (2002-12-01), Hosono
patent: 9-201960 (1997-08-01), None

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