An ink jet printing device and a manufacturing method of a functional liquid
applied
substrate, which can equalize the discharge amount of the functional liquid with
simple operations and structures. An ink jet printing device (100) comprises
a plurality of nozzles (111) for discharging the functional liquid and the
plurality of nozzles are divided into a plurality of groups, the number of the
groups being less than the number of the nozzles, and the discharge amount of the
functional liquid discharged from the nozzles is controlled in every group. A manner
of grouping of the nozzles is performed such that a part of an ink jet head (1a),
onto which the nozzles are located, is divided into a plurality of areas and those
nozzles belonging to each area belong to one group.
