HP Latex 2700 User Guide 3 - Page 290

These defects are due to the printheads traveling from side to side without printing. ● In each pass, the first drops of a color are missing or smaller. ● In each pass, the first drops of a color are darker because they are more concentrated with pigment. To resolve these defects, add spit bars at each side of the image, to make sure nozzles are refreshed before printing each pass. If possible, you could also rotate the image to avoid situations such as shown in the example. Microbanding This consists of very thin horizontal lines of very high frequency that appear in some area fills. Often they are hardly visible. Microbanding is probably caused by ink crusting. Here are some tips for solving this problem: ● Check and clean the printheads. See Check and clean the printheads on page 96. ● Check and clean the left printhead cleaning blade. See Check and clean the left printhead cleaning blade on page 175. ● Check that there are no obstacles in the substrate path. ● Increase the number of passes. ● Decrease the amount of ink. Microbanding 283