FIELD: measurement equipment.
SUBSTANCE: invention discloses a printing head for jet printing and a fluid medium level sensor. At the same time the sensor comprises a nozzle, a fluid medium channel, a sensor plate on the bottom of the specified channel and a sensor circuit for determination of ink level during nozzle blowdown, when the sensor plate is exposed to air sucked into the channel via the nozzle.
EFFECT: proposed sensor of liquid level provides for accurate readings between moist and dry states.
17 cl, 22 dwg
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