Method of adjusting electromechanical element of ink jet print h

Details Method of adjusting electromechanical element of ink jet print h Method of adjusting electromechanical element of ink jet print h

1997-03-10

1999-07-13

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 68, 310358, 29 2535, B41J 2045

Patent

active

059233524

ABSTRACT:
A method of adjusting an ink jet head having at least one polarized electromechanical transducer forming an ink pressure chamber from which ink drops are ejected when the electromechanical transducer is deformed. The method includes the steps of performing a first polarization operation where the electromechanical transducer is polarized into saturation in a first direction, and performing second polarization operation where the electromechanical transducer polarized by the first polarization operation is polarized in a second direction opposite to the first direction so that the electromechanical transducer is polarized to a predetermined level.

REFERENCES:
patent: 5666144 (1997-09-01), Zhang
Patent Abstract of Japan, vol. 17, No. 7, (Dec. 22, 1993), JP 5-243884 A (Murata MFG Co, LTD).
Wang et al., "Peizoelectric Porperties of PLZT Ceranics At Differnt Remanent Polarization Levels," 1990 IEEE 7th International Symposium on Applications of Ferroelectrics, 1991.

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