Patent ID: 8728570
Filing Date: 2014-05-20
Classification: B41J

Abstract:
1. A droplet discharge method for discharging a liquid into a plurality of drawing regions partitioned on a substrate from a plurality of nozzles formed in a droplet discharge head while moving the droplet discharge head relative to the substrate, the droplet discharge method comprising: discharging the liquid from the nozzles while the droplet discharge head is moved relative to the substrate, the nozzles including first nozzles and a second nozzle that are arranged so that the first nozzles face the drawing regions, and so that the second nozzle faces a non-discharge area, the non-discharge area being disposed between the drawing regions; dividing only the first nozzles into a plurality of nozzle groups so that the nozzles in one of the groups face the same drawing region; comparing an average value of an amount of the liquid discharged from the nozzles constituting each of the nozzle groups with a predetermined average value; and increasing the average value such that the average value is substantially equal to the predetermined average value when the average value is lower than the predetermined average value, or decreasing the average value such that the average value is substantially equal to the predetermined average value when the average value is higher than the predetermined average value, by correcting an amount of the liquid discharged from each of the nozzles in each of the nozzle groups.