To flush ink lines, dampers and print head in an Epson PRO MODEL printer (including R3000):
Remove the set of ink cartridges.
Install a set of PiezoFlush cartridges.
Preform an Initial Fill/Ink Charge Cycle, thru the printer control panel (or the Adjustment Program, depending on your printer model).
*Adjustment Programs can be purchased and downloaded from www.2manuals.com (NOTE: Adjustment Programs are