Patent ID: 6874860

Claim:
A printing apparatus for printing images on a substrate, comprising: a first set of print heads S 1 having at least two print heads P 1,1 , P 1,2 arranged to deposit a first ink I 1 ; and a second set of print heads S 2 having at least two print heads P 2,1 , P 2,2 arranged to deposit a second ink I 2 , a first print head P 1,1 of the first set S 1 and a first print head P 2,1 of the second set S 2 respectively depositing the first ink I 1 and the second ink I 2 in a first order of deposition O 1 , and a second print head P 1,2 of the first set I 1 and a second print head P 2,2 of the second set S 2 respectively depositing the first ink I 1 and the second ink I 2 in a second order of deposition O 2 as the printing apparatus traverses across the substrate in one direction D 1 , the order of deposition of the first ink I 1 and the second ink I 2 from the print heads being reversed as the printing apparatus traverses across the substrate in an opposite direction D 2 .