Your Epson printer could appear offline due to some issues and it will be unable to communicate with your computer. This sort of error can be more annoying than the Epson printer not printing. If you ever come across the message “Epson printer offline,” you have to see if the network connection is working and the printer is turned on.
If the Epson printer offline problem persists, use a new USB cable for the connection.
If neither of the above methods could help you in resolving the Epson printer offline message, the best way to make sure you get rid of the error messages is to see if you have the proper Epson printer driver downloaded.
Finally, check if the Epson printer offline issue has been fixed.