If you are seeing drops of ink on the print, you should perform a manual maintenance.  These manual cleanings need to be done once a week on Legacy (GS6000, S30,S50,S70) printers and once a month on new Surecolor (S40,S60,S80) printers. The cleaning instructions can be found here on page 91. https://files.support.epson.com/docid/cpd5/cpd50696.pdf