The Epson XP-540 Scanner-part is identical to the Standalone Epson V39 Scanner. For the V39 the plugin-gt-s650 comes in two flavours: As fully functional imagescan plugin, which doesn't have libsane as dependency and as non-functional iscan plugin which relys on libsane.
In the meanwhile I discovered:
The Epson XP-540 Scanner-part is identical to the Standalone Epson V39 Scanner. For the V39 the plugin-gt-s650 comes in two flavours: As fully functional imagescan plugin, which doesn't have libsane as dependency and as non-functional iscan plugin which relys on libsane.