Patent ID: 8459776

Claim:
A method of printing a regular array of rows of subpixels on a workpiece, the subpixels having c different colors and having a subpixel pitch s, said method comprising: (a) providing a printing head having z nozzles arranged in a row with a spacing between the nozzles of p, where z=n 1 (c) and p=(c−1)(s), the printhead being at a first position relative to the workpiece; (b) providing c different printing inks, one for each of the c colors; (c) supplying each of the printing inks to the nozzles in a regular alternating pattern; (d) printing a first set of z rows of subpixels with the printing head; (e) moving the workpiece laterally relative to the printing head by a distance d 1 , where d 1 =z(s); (f) printing a second set of z rows of subpixels with the printing head; (g) repeating steps (e) and (f) n 2 times for a total of (n 2 +2)sets of z rows of subpixels; where: c is an integer greater than 1; n 1 is an integer greater than 0, with the proviso that when c is an odd number, then n 1 is an odd number; n 2 , is an integer greater than 0.