Most printer drivers have a setting to turn off the use of colour inks. I've attached a picture of the driver for my Epson WF-7720. I don't have that printer so I don't know if your driver is like mine or not. Or, your driver may look like this. If it's not like those examples, then dig around. It should be there somewhere. It's not always in the most obvious place.
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.