DISCHARGE SYSTEM AND METHOD FOR DISCHARGING BY DISCHARGE SYSTEM

摘要

A discharge system 1 includes: a head unit (10) including discharge heads (11) that discharge a liquid material (25) from nozzle openings (14) that are communication with cavities (13) onto a target (51) by changing the internal pressure of the cavities (13) using piezo elements (12); a viscosity estimating unit (81) that estimates the viscosity of the liquid material (25) by sucking the liquid material (25) from first vessels (21) that hold the liquid material (25) into the cavities (13); and a waveform control unit (82) that controls the voltage applied to the piezo elements (12) according to the estimated viscosity of the liquid material (25).