Browse > Article
http://dx.doi.org/10.5369/JSST.2010.19.2.124

Piezo-driven inkjet printhead monitoring system  

Lee, Byeung-Leul (School of Mechatronics Engineering, Korea University of Technology and Education)
Kim, Sang-Il (Doosan Infracore)
Publication Information
Journal of Sensor Science and Technology / v.19, no.2, 2010 , pp. 124-129 More about this Journal
Abstract
For the industrial printing applications, the stability of the piezo-driven inkjet printhead is a major requirement. In this paper, we focused on the failure modes of the inkjet printhead and realized a method to detect and repair them at high speed. The printhead monitoring is performed by detecting the residual vibration of the actuating plate using the self- sensing capability of the piezoelectric material. To measure the channel acoustics and to identify the malfunctioning nozzle, we devised the bridge sensing circuitry and failure detection algorithm. The residual vibration signals can be affected by the boundary conditions of the channel acoustics, so it is possible to identify the failure causes by analyzing the monitoring signals. Therefore it is also possible to apply a proper restoring process to the defective printhead. The experimental results show that this method is effective in improving the reliability of the industrial printing.
Keywords
piezo-driven inkjet; industrial printing; self-sensing; inkjet head monitoring;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Victor Giurgiutiu and Andrei N. Zagrai, "Embedded Self-sensing piezoelectric active sensors for on-line structural identification", Journal of vibration and acoustics, ASME, vol. 124, pp. 116-125, 2002.   DOI   ScienceOn
2 Matthieu Guirardel and Liviu Nicu, "On-chip self-sensing function of 4${\times}$4 matrix micromachined resonating piezoelectric membranes for mass applications", Proceeding of the IEEE Conf. on International Ultrasonic, Ferroelectrics and Frequency Control, pp. 317-320, 2004.
3 K. Cheng, K.-H. Wu, T.-Y. Yang, and J. Chen, "A novel application of ink-jet printing technology on manufacturing color filter for LCD", NIP 17, pp. 739-743, 2001.
4 Jos de Jong and Gerrit de Bruin, "Air entrapment in piezo-driven inkjet printheads", J. Acoust. Soc. Am., vol. 120, no. 3, pp. 1257-1265, 2006.   DOI   ScienceOn
5 M.B.Groot Wassink, N.J.M. Bosch, O.H. Bosgra, and Koekebakker, "Enabling higher jet frequencies for an inkjet printhead using iterative learning control", Proceeding of the IEEE Conf. on Control Applications, pp. 791-796, 2005.
6 Chengkuo Lee, Toshihiro Itho, and Tadatomo Suga, "Self-excited piezoelectric PZT microcantilevers for dynamic SFM with inherent sensing and actuating capabilities", Sensor and Actuators A, vol .72, pp. 179-188, 1999.   DOI   ScienceOn