On Wed 04 May 2022 at 15:43:03 +0200, Dieter Rohlfing wrote: > Am Wed, 4 May 2022 12:50:14 +0100 > schrieb Brian <a...@cityscape.co.uk>: > > >I wonder whether the net backend is required. What happens if the > >entry is commented out? > > My fault: net was enabled, therefore I thought, that it is necessary. > According to your proposal I disabled net and access to ET2711 is > possible. So no need to enable net, airscan alone is sufficient.
If you do not need more that 100dpi and 300dpi, airscan gives a user an alternative to Epson's non-free driver. > >Scanning is taking place using the WSD (Web Services for Devices) > >protocol. The eSCL protocol needs AirPrint on the device. > > I thought eSCL is just a synonym for WSD. Wrong or right? This is my > first approach to scanning and I'm not very familiar with the different > scanning protocols. They are two completely different independent protocols. See https://wiki.debian.org/SaneOverNetwork > >Would you confirm you can scan with > > > > xsnae "airscan:w0:EPSON ET-2710 Series" > > It works. Thanks. > >Unfortunately, the vendor's implementation of WSD may offer only > >a limited number of resolutions. airscan cannot do anything about > >this; it can only work with what it is told by the device. > > Agreed. eSCL would have provided a wider range of resolutions. Why in this day and age Epson chose not to provide the device with AirPrint is beyond me. > >With a USB connection, what do you get for > > lsusb -v | grep -A 3 bInterfaceClass.*7 ? > > The output is: > > > bInterfaceClass 7 Printer > > bInterfaceSubClass 1 Printer > > bInterfaceProtocol 2 Bidirectional > > iInterface 6 USB2.0 Printer The device does not provide IPP-over-USB either. Many MFPs have been offering it since soon after 2012. -- Brian.
