Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Development of Methods for Detecting Inkjet Malfunction

잉크젯 헤드의 오작동 검출 방법 개발

  • Kwon, Kye-Si (Dept. of Mechanical Engineering, Soonchunhyang Univ.) ;
  • Go, Jung-Kook (Dept. of Mechanical Engineering, Soonchunhyang Univ.) ;
  • Kim, Jin-Won (Dept. of Mechanical Engineering, Soonchunhyang Univ.) ;
  • Kim, Dong-Soo (Korea Research Institute of Machinery & Materials)
  • 권계시 (순천향대학교 기계공학과) ;
  • 고정국 (순천향대학교 기계공학과) ;
  • 김진원 (순천향대학교 기계공학과) ;
  • 김동수 (한국기계연구원)
  • Received : 2010.05.10
  • Accepted : 2010.06.03
  • Published : 2010.10.01
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Abstract

For the reliable use of inkjet technology as patterning tools, the jetting of the inkjet dispenser needs to be monitored for real-time detection of any malfunction. We present a self-sensing circuit that can be used to detect jetting failure by measuring electrical signals only. In addition, practical problems involved in the monitoring of inkjets in multinozzle printheads are discussed. In the study, software was developed and presented to demonstrate the feasibility of the proposed method for detecting inkjet jetting failure in a printing system.

생산 장비로서 잉크젯 기술의 신뢰성을 증대 시키기 위하여 잉크젯 헤드의 작동 상태를 모니터링하고 이상 유무를 즉시 발견 할 수 있는 소프트웨어 및 하드웨어를 개발 하였다. 잉크젯 헤드의 작동 상태의 측정을 위하여 잉크젯 헤드의 피에조 전기 신호를 사용하였다. 이를 위하여 피에조의 변형량을 간접적으로 측정 할 수 있는 회로를 개발 하였고, 측정된 전기 신호를 사용하여 작동의 불량 여부를 판단 할 수 있도록 소프트웨어 알고리즘을 개발하였다. 또한 다중 노즐 헤드에 적용이 가능하도록 소프트웨어 개발 및 시스템 통합을 수행하였다.

Keywords

References

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