Hi Ree, Yes, you can change the ink cartridges individually as they are expended. Ink yield for the WF-4830 is 350 black pages, 240 color pages using 822 cartridges, or 1,100 black pages, 1,100 color pages using high-capacity 822XL cartridges. For more information about the WF-4830, including our ISO ink yield test methods, visit the Epson support site, Regards, Mark - The Epson Team.