Epson iPrint is an application that allows you to print photos, documents, and web pages from a smart device such as a smartphone or tablet. You can use local print, printing from a smart device that is connected to the same network as the wireless router, or remote print, printing from a remote location over the Internet. To use remote print, register your printer in the Epson Connect service.
When the wireless router is connected to the same network as the printer, you can operate the printer via the wireless router from your smart device.