If you are facing an Epson Printer offline error, then most likely, the reason is a bad network connection or an outdated print driver. To fix the problem, firstly, you must be sure of a proper network connection, and for that, you can restart the router. Next, visit the devices and printers section, right-click your Epson printer and choose the option set as the default printer, also uncheck Use Printer Offline option. After that, visit the Epson support website and select the Printer driver and install it on your computer. If you are still facing the problem, then uninstall and reinstall the Epson printer on your computer. Hopefully, these will fix the offline Epson printer error.