Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2007.05a
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- Pages.455-460
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- 2007
Diagnosis and monitoring of inkjet operating conditions
잉크젯 작동 상태 진단 및 모니터링
- Kwon, Kye-Si ;
- Kim, Byung-Hun (Display Device & Processing Lab.) ;
- Kim, Sang-Il (Display Device & Processing Lab.) ;
- Shin, Seung-Joo (Display Device & Processing Lab.) ;
- Kim, Seong-Jin (Display Device & Processing Lab.)
- Published : 2007.05.30
Abstract
A self-sensing circuit for piezo inkjet has been designed in order to monitor the operating condition during printing. In order to verify the circuit, both ink droplet images from strobe LED and vibration signals from the laser vibrometer were measured and compared with self-sensing signal. Experimental results show that self-sensing signal was effective in detecting the pressure wave change due to the bubble trapped in inkjet printhead.