Print Quality -3 -2 -1 -0 1 2 3 -3 -2 -1 -0 1 2 3 -3 -2 -1 -0 1 2 3 Interpreting plot results The three plots are all printed using Photo Black ink in 6-pass print mode (even on Gloss paper) and should should each be similar. The white/lightest band of must be within the center ±1 area for a PASS result. This should be true for all three plots or the printer will have differential banding (a difference of advance between the left and right). There is a 3-inch white band before the plots to ensure there is no platen noise causing advance errors while the media is covering the platen. Example acceptable plot The following illustration shows an example of a PASS plot.
Leading Edge of Plot White Band to avoid platen noise White/Lightest band within the ±1 range -3 -2 -1 -0 1 2 3 196 Chapter 6 Print Quality