Nozzle ejection amount correcting method, functional liquid ejecting method, and organic el device manufacturing method

A nozzle ejection amount correcting method in which a plurality of nozzles are arranged to face a target of ejection where ejecting regions are formed, one of a plurality of driving signals is supplied to actuators of selected nozzles among the plurality of nozzles while main scanning is performed a plurality of times for relatively moving the plurality of nozzles and the target of ejection, and ejection amounts of liquid droplets when a predetermined amount A of functional liquid set in advance is ejected as the liquid droplets onto the ejecting regions are corrected for the plurality of nozzles, the method comprising:

• performing first signal correction by calculating correction amounts of the plurality of driving signals from a difference C between a predetermined amount B in a case of ejecting the liquid droplets from the selected nozzles to the ejecting regions in the main scanning performed a plurality of times and the predetermined amount A, by using the plurality of driving signals;
• performing second signal correction by calculating correction amounts of the plurality of driving signals before the correction corresponding to the main scanning in the later stage from a difference E between a predetermine amount D in a case of ejecting the liquid droplets from the selected nozzles to the ejecting regions and the predetermined amount A, by using the plurality of driving signals, by which the first signal correction is performed, in the main scanning in the former stage among the main scanning performed a plurality of times and using the plurality of driving signals before correction in the main scanning in the later stage;
• and
• performing the second signal correction in a stepwise manner in accordance with the remaining number of times of the main scanning performed a plurality of times,
• wherein main scanning, in which the number of ejected liquid droplets ejected to the ejecting regions is the largest, among the main scanning performed a plurality of times, is regarded as the main scanning in the former stage.