ciao!

allora, ho controllato quei due comandi, ed entrambi trovano le stampanti senza problemi:
codice:
matte@matte-port ~$ avahi-browse -a
+ enp4s0 IPv6 amodafs04 [00:08:9b:f9:9e:a2]                 Macchine             local
+ enp4s0 IPv4 amodafs04 [00:08:9b:f9:9e:a2]                 Macchine             local
+ enp4s0 IPv4 810885003                                     _teamviewer._tcp     local
+ enp4s0 IPv4 Dell B1260dn Mono Laser Printer (DEL30CDA7963AB2) Stampante UNIX       local
+ enp4s0 IPv4 Dell__Laser__Printer__1720dn                  Stampante UNIX       local
+ enp4s0 IPv4 Dell B1260dn Mono Laser Printer (DEL30CDA7963AB2) Stampante PDL        local
+ enp4s0 IPv4 Dell__Laser__Printer__1720dn                  Stampante PDL        local
+ enp4s0 IPv4 Dell B1260dn Mono Laser Printer (DEL30CDA7963AB2) Sito Web             local
+ enp4s0 IPv4 RICOH MP C3004 [002673DD03F9]                 Sito Web             local
+ enp4s0 IPv4 RICOH MP C3004 [002673DD03F9]                 _uscan._tcp          local
+ enp4s0 IPv6 Dell B2360dn Laser Printer                    Secure Internet Printer local
+ enp4s0 IPv4 Dell B2360dn Laser Printer                    Secure Internet Printer local
+ enp4s0 IPv4 RICOH MP C3004 [002673DD03F9]                 Secure Internet Printer local
+ enp4s0 IPv6 Dell B2360dn Laser Printer                    Internet Printer     local
+ enp4s0 IPv4 Dell B2360dn Laser Printer                    Internet Printer     local
+ enp4s0 IPv4 Dell B1260dn Mono Laser Printer (DEL30CDA7963AB2) Internet Printer     local
+ enp4s0 IPv4 Dell__Laser__Printer__1720dn                  Internet Printer     local
+ enp4s0 IPv4 RICOH MP C3004 [002673DD03F9]                 Internet Printer     local
non potrebbe essere un problema proprio di cups??