Patent ID: 7314185

Claim:
A liquid jetting apparatus to jet a droplet of a charged liquid solution onto a base material, comprising: a liquid jetting head comprising a nozzle to jet the droplet from an edge portion, an inside diameter of the edge portion of the nozzle being more than 0.2 μm and being not more than 4 μm, the nozzle being integrally formed with a nozzle plate; a liquid solution supplying section to supply the liquid solution into the nozzle; a jetting voltage applying section to apply a jetting voltage to the liquid solution in the nozzle, the jetting voltage applying section comprising a jetting electrode provided as a layer on a back end surface of the nozzle plate, the jetting electrode having an ink passage hole positioned at a border between the liquid solution supplying section and the inside passage; and a convex meniscus forming section to form a state where the liquid solution in the nozzle protrudes from the nozzle edge portion; wherein the jetting voltage is set to a value in the range that a droplet is capable of being jetted in a state where a convex meniscus by the liquid solution is formed at the edge portion of the nozzle, and a droplet is not jetted in a state where the convex meniscus is not formed.