When printing a large job which consists of a solid color area fill (no gradient) and using the tiling feature to print the job as two or more tiles, it may occasionally be possible to see a color shift from left to right.
The diagrams below show the appearance of the two printed tiles, with the color shift greatly exaggerated to better illustrate the problem.
Color shift left to right when tiling (paneling):
When looking at each individual tile printing, the eye doesn’t see any problems. However when the two tiles are joined, the eye can see a difference in the colors as seen below
Click on the attached document in order to check the possible cures for this issue.