| 摘要 |
An identification code drawing method of drawing an identification code on a substrate includes: cleaning the substrate by using a cleaning unit; performing lyophobization for the substrate; discharging liquid droplets of functional liquid, into which particles of metal or metal oxide are dispersed, from nozzles of a first liquid droplet discharging head onto a region of the substrate having been subjected to the lyophobization, on the basis of liquid droplet discharge data for drawing the identification code; and heating the liquid droplets adhered on the substrate by using a heating unit or drying the liquid droplets adhered on the substrate by using a drying unit.
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