Print correction method and droplet ejection head therefor

Abstract

A method of ejecting droplets of fluid to compensate for thickness variation due to on-substrate fluid flow of a dried uncompensated layer is disclosed. The method comprises a) receiving uncompensated image data and a predefined nominal thickness; b) determining the thickness variation from said predefined nominal thickness at one or more locations on a substrate of one or more dried uncompensated layers; c) determining compensating image data to compensate for said thickness variation; and d) ejecting droplets of fluid through one or more nozzles of a droplet ejection head using said compensating image data to form a dried compensated layer on said substrate. A droplet ejection apparatus for implementing the method is also disclosed, and comprises one or more droplet ejection heads mounted on one or more movement devices.

Dependencies are inferred from the claim text.