How do I print with black ink from Windows or my Mac when a color cartridge is expended?
When color ink is expended and black ink still remains, you may be able to continue printing for a short time on plain paper or envelopes using only black ink. However, you should replace the expended ink cartridge(s) as soon as possible.
Note: If you are using a Mac, make sure you're using the Epson driver for your product. You can download and install the Epson Drivers and Utilities Combo Package from the Downloads tab on your product's support page.
See Temporarily Print From Your Computer with Black Ink When Color Ink Cartridges are Expended for more information.