From the image that I see I can suggest causes:
-Printheads issue, too old PH or not cleaned. Recommendation: Clean Printheads (from FP -> menu image-quality maintenance-> clean PH), reseat and align them (from FP -> menu image-quality maintenance-> align PH) if issue persist and if finally is needed replace the affected ones
-Advance problem recommendations: Perform a substrate advance calibration (from FP -> menu image-quality maintenance-> OMAS calibration)
-Too low number of passes, recommendation: Increase number of passes
-Media not compatible with the printer. Recommendation: Use a certified media, you can find the appropriate media for your printer on the Media Solution Locator.