Single feed and double feed (multiple feed) can be distinguished easily and precisely by means of the ultrasonic waves, which transmitted by an ultrasonic air transducer traveling through the sheet and received by another air transducer. Much ultrasound energy can travel through one sheet than that of multiple sheets, so that we can judge multiple feed happened according to the weaker ultrasound, regardless of compositions and colors of the sheet material, such as paper, glass sheets, transparent plastic sheets, metal sheets.

  • Printer
  • Multi-function printer(MFP)
  • Scanner
  • Splicing detection
  • Banknote fitness
  • High performance
  • High reliability
  • Suitable for most of materials