Ink jet print head adapted to minimize orientation-induced line-width variation

摘要

Ink jet print head adapted to minimize orientation-induced line-width variation. The print head having n nozzles located at the vertices of a regular or quasi-regular polygon having an average side length s_avg, and each side length of the polygon is less than 20% deviation from the average side length s_avg. The n nozzles are configured to ink jet a line having a line-width w; and each of the n nozzles is configured to ink jet a spot having an average area-equivalent spot diameter d which satisfies the inequality condition (I) 0.7w<=D+(n/pi)s_avg<=1.3w. (I)