When the ink cartridge is expended, you need to replace it.
You may also need to replace a cartridge that is more than six
months old, if your printouts do not look their best, even after
cleaning and aligning the print head.
Note: Please
dispose of your used Epson branded ink cartridges responsibly and
in accordance with local requirements. If you would like to return
your used ink cartridges to Epson for proper disposal, please go to
www.epson.com/recycle for more information.