Papers by Keyword: Ink Jet Head

Abstract: Inkjet printing technology has been used in several areas and the inkjet printer uses different inks, for example oil ink for cloth printing, color glaze ink for ceramic printing and so on. The printer ink jet head uses these inks are blocked frequently. An automatic block detection system has been presented in this paper. The system provides droplet deposition apparatus comprising of: a fluid chamber; a nozzle in fluid communication with the chamber for ejection of fluid; a monitor; CCD camera; image capturing and processing module. The system has applied to ink jet and droplet image detection and it is proved effective and the detection result is accuracy.

Abstract: Piezoelectric actuators were prepared by the screen printing of piezoelectric thick films and the wet etching of Si substrates for the application of ink jet printer heads. The Pt bottom electrode was used as the vibration plate to obtain a large displacement. The layer structure and integration processes of the Pt bottom electrodes were investigated to be suited to the whole preparation process of the piezoelectric actuator. The displacement of the center of the actuator with 100 μｍ x mm was 0.03 μm at the applied voltage of 30 V and frequency of 4 kHz.