In this method of manufacturing a device, when discharging the liquid drops upon the substrate, a bit map made up from a plurality of pixels against which liquid drops are discharged is established upon the substrate. When establishing the pixels, when the interval of the discharge nozzles of the liquid drop discharge head 1 is taken as “a”, and the size in the Y axis direction of the pixels is taken as by, the pixels are established so that the condition by=a/n is satisfied, where n is a positive integer.