Shear-Mode Industrial Inkjet Head Using Lead-Free Piezoelectric Ceramics

A shear-mode inkjet head utilizing alkaline niobate-based lead-free piezoelectric ceramics has been developed. A prototype inkjet head with a nozzle density 150 dots per inch (dpi) was achieved on a grayscale of eight levels with a minimum ink droplet ejection of 6 pl. Furthermore, the inkjet head w...

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Veröffentlicht in:Japanese Journal of Applied Physics 2012-09, Vol.51 (9), p.09LD13-09LD13-4
Hauptverfasser: Tanuma, Chiaki, Shimosato, Masashi, Nitta, Noboru, Yamamoto, Keizaburou, Takahashi, Hirofumi
Format: Artikel
Sprache:eng
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Zusammenfassung:A shear-mode inkjet head utilizing alkaline niobate-based lead-free piezoelectric ceramics has been developed. A prototype inkjet head with a nozzle density 150 dots per inch (dpi) was achieved on a grayscale of eight levels with a minimum ink droplet ejection of 6 pl. Furthermore, the inkjet head with a nozzle density of 300 dpi was achieved on a grayscale of four levels with a minimum ink droplet ejection of 3 pl. Although the prototype inkjet head required a high voltage of approximately twice the driving voltage of the inkjet head using lead zirconate titanate (PZT) piezoelectric ceramics, the grayscale can be realized by a multidrop method. Thus, the alkaline niobate-based lead-free piezoelectric ceramics can be used to replace PZT ceramics as shear-mode actuators for inkjet heads.
ISSN:0021-4922
1347-4065
1347-4065
DOI:10.1143/JJAP.51.09LD13