Shear-Mode Industrial Inkjet Head Using Lead-Free Piezoelectric Ceramics
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概要
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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.
- 2012-09-25
著者
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TAKAHASHI Hirofumi
Fuji Ceramics Cooperation
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Tanuma Chiaki
Research and Development Center, Corporate Strategic Product and Technology Planning Group, Toshiba Tec Corporation, Mishima, Shizuoka 411-8520, Japan
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Takahashi Hirofumi
Fuji Ceramics Corporation, Fujinomiya, Shizuoka 418-0111, Japan
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Shimosato Masashi
Inkjet Business Group, Toshiba Tec Corporation, Mishima, Shizuoka 411-8520, Japan
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Nitta Noboru
Inkjet Business Group, Toshiba Tec Corporation, Mishima, Shizuoka 411-8520, Japan
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Yamamoto Keizaburou
Inkjet Business Group, Toshiba Tec Corporation, Mishima, Shizuoka 411-8520, Japan
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