SAFETY DEVICE FOR CONDUCTIVE FLUID RECIRCULATING SYSTEM AND INK JET PRINTER WITH SAID SAFETY DEVICE

摘要

Safety guard for the circulation of fluid and its application to the ink jet printers. / p & & p & the invention relates to a device designed for the circulation of fluid driver constitutes a capteur100 and an electronic circuit associe101. It permits of determining the level of turbulence of the discharge of the liquid in a portion of canalisation22 of longueur1 in providing the measurement of the variation of the conductivity bound to the variations of section of the liquid in this troncon22 carried out in an insulating material and delimited by two sections conducteurs20 and 21, and by providing a control logic signal. / p & & p & the invention applies in particular to the circuits of the recirculation of a jet printer in which it is between a inserted gutter of recuperation17 and a pump of recirculation19.