If your Epson printer shows offline, then you'll plan to restart the pc, printer, and router. If the doesn’t resolve, then visit the control panel section in your computer and click on on Devices and Printer / Printer and Scanners (depending on your Windows). Now click the Epson Printer icon and click on on Manage. A replacement window will open now, click the Printer tab, and uncheck the use Printer Offline option. Check if the matter is resolved, else return and again click on Epson printer.