Epson inkjet print head : Epson has succeeded in developing a thin-film piezo element that boasts the world's highest degree of distortion. Volume production of next-generation Micro Piezo print heads that feature these elements as actuators will be launched in April 2007. The Micro Piezo print head is an inkjet print head which utilizes Epson's original Micro Piezo technology. This technology uses electrical signals to change the shape of piezo elements and then fires ink droplets according to the physical force generated by the change in shape of these elements. Epson's Stylus Photo and Stylus Pro inkjet printers are photo-quality printers that have consistently played leading roles in the inkjet printer market.