If your Epson printer won't print, there are several troubleshooting steps you can try. First, ensure the printer is properly connected to your computer or network. Check the ink levels and ensure there is paper in the tray. Next, clear any stuck print jobs in the print queue and restart both your printer and computer. You should also check for any updates to the printer drivers on the Epson website. If the issue persists, use the built-in troubleshooter on your computer or contact Epson support for further help.