Patent ID: 9029297
Filing Date: 2015-05-12
Classification: B01J,B01L,C12N

Abstract:
1. A method of printing, onto a substrate, layered arrays of spots, which method includes: forming an array of capillary tubes in or against a stackable supporting element, each capillary tube having at least one open end; stacking a plurality of the stackable supporting elements side-by-side into a print head assembly, with each supporting element supporting an array of capillary tubes using the array of capillary tubes to print a first array of spots onto the substrate; allowing the first array of spots to dry; printing, over the first array of spots, a second array of spots, the spots of the second array being at least partially coincident with the spots of the first array; allowing the second array of spots to dry; printing, over the second array of spots, a third array of spots, the spots of the third array being at least partially coincident with the spots of the second array; and allowing the third array of spots to dry.