Firstly, you should properly ensure that your Epson printer is appropriately connected to the Wi-Fi network or it is getting strong internet signals. Poor internet connectivity is the major cause of this error. Now, you should check and ensure that your Epson printer is powered on or not. If it is not then you should turn it on. If everything looks good then you should move over to the settings of your Epson printer to check the network to which it is presently connected. Next, you should visit any support services online or offline to know the steps. You should also ensure that you have the latest and updated drivers installed on your Epson printer. The outdated drivers can pose problems and can cause the Epson printer offline error.