[Trisquel-users] Re : Connecting an EPSON Workforce WF 3640 Printer to Trisquel on Lenovo T400 Libreboot

[lcerf]

That is correct.  'ppa-purge', in Trisquel's repository, helps.  See  
https://trisquel.info/forum/trisquel-8-codename-flidas-release-candidate-ready-testing#comment-130971