SP 540i black with stripes

[robinsk]

Hi, I have problems with my Roland SP 540i plotter, it prints black with stripes. I attach my test print, the head is new, changed in February of this year. Does anyone know how to fix this problem? Thanks everyone in advance

 

[Roland Certified Tech]

You do have a couple of slightly deflected nozzles, would need to see the service level micro-dot test.
However, check you feed calibration on the printer and make sure you are making the proper setting in VW by choosing the Use Printer Setting or entering the feed calibration in VW Custom setting.
What quality level is this?, try High Quality if not on that yet.