Method for driving a liquid droplet ejecting head and liquid...

Details Method for driving a liquid droplet ejecting head and liquid... Method for driving a liquid droplet ejecting head and liquid...

2011-01-25

2011-01-25

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S009000, C347S055000

Reexamination Certificate

active

07874647

ABSTRACT:
A method for driving a liquid droplet ejecting head having plural liquid droplet ejectors that eject liquid droplets from nozzles according to respective voltage changes applied to plural piezoelectric elements electrically connected in a matrix, wherein a switching element being provided with respect to each piezoelectric element and capable of grounding one of a pair of terminals of the piezoelectric element, the method including: inputting, per unit of one column of the piezoelectric elements, a column controlling signal for switching on/off the switching element; inputting, per unit of one row of the piezoelectric elements, a row signal for switching the other of the pair of terminals of the piezoelectric element to a predetermined voltage applied state, a grounded state or an opened state; and ejecting the liquid droplet from the liquid droplet ejector by forming a voltage change between the pair of terminals of the piezoelectric element, is provided.

REFERENCES:
patent: 2005/0041073 (2005-02-01), Fontaine et al.
patent: 2005/0200657 (2005-09-01), Nakazawa
patent: 04-077260 (1992-03-01), None
patent: 10-193587 (1998-07-01), None
patent: 2002-026102 (2002-01-01), None

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