I was seeing 200% until I kill-9'd cups-browsed, sorry if that makes it harder to collect info. But I still have this from scrollback:

alex@alex-work-pc:/var/log/cups-browsed$ avahi-browse -rt _ipps._tcp
+ enp1s0 IPv6 Canon MB5100 series                           Secure Internet Printer local
+ enp1s0 IPv4 Canon MB5100 series                           Secure Internet Printer local
= enp1s0 IPv6 Canon MB5100 series                           Secure Internet Printer local
   hostname = [Printer.local]
   address = [192.168.0.241]
   port = [631]
   txt = ["rfo=ipp/faxout" "TLS=1.2" "mopria-certified=1.2" "print-wfds=T" "PaperMax=legal-A4" "kind=document,envelope,photo,label" "Fax=T" "Scan=T" "Duplex=T" "Color=T" "UUID=00000000-0000-1000-8000-84BA3B777EB7" "URF=V1.4,CP1,PQ4-5,RS600,SRGB24,W8,OB9,OFU0,DM3,IS1" "usb_CMD=URF" "usb_MDL=MB5100 series" "usb_MFG=Canon" "adminurl=http://Printer.local./index.html?page=PAGE_AAP" "note=" "pdl=application/octet-stream,image/urf,image/jpeg,image/pwg-raster" "product=(Canon MB5100 series)" "ty=Canon MB5100 series" "priority=15" "qtotal=1" "rp=ipp/print" "txtvers=1"]
= enp1s0 IPv4 Canon MB5100 series                           Secure Internet Printer local
   hostname = [Printer.local]
   address = [192.168.0.241]
   port = [631]
   txt = ["rfo=ipp/faxout" "TLS=1.2" "mopria-certified=1.2" "print-wfds=T" "PaperMax=legal-A4" "kind=document,envelope,photo,label" "Fax=T" "Scan=T" "Duplex=T" "Color=T" "UUID=00000000-0000-1000-8000-84BA3B777EB7" "URF=V1.4,CP1,PQ4-5,RS600,SRGB24,W8,OB9,OFU0,DM3,IS1" "usb_CMD=URF" "usb_MDL=MB5100 series" "usb_MFG=Canon" "adminurl=http://Printer.local./index.html?page=PAGE_AAP" "note=" "pdl=application/octet-stream,image/urf,image/jpeg,image/pwg-raster" "product=(Canon MB5100 series)" "ty=Canon MB5100 series" "priority=15" "qtotal=1" "rp=ipp/print" "txtvers=1"]


alex@alex-work-pc:/var/log/cups-browsed$ avahi-browse -rt _ipp._tcp
+ enp1s0 IPv6 Canon MB5100 series                           Internet Printer     local
+ enp1s0 IPv4 Canon MB5100 series                           Internet Printer     local
= enp1s0 IPv4 Canon MB5100 series                           Internet Printer     local
   hostname = [Printer.local]
   address = [192.168.0.241]
   port = [631]
   txt = ["rfo=ipp/faxout" "mopria-certified=1.2" "print-wfds=T" "PaperMax=legal-A4" "kind=document,envelope,photo,label" "Fax=T" "Scan=T" "Duplex=T" "Color=T" "UUID=00000000-0000-1000-8000-84BA3B777EB7" "URF=V1.4,CP1,PQ4-5,RS600,SRGB24,W8,OB9,OFU0,DM3,IS1" "usb_CMD=URF" "usb_MDL=MB5100 series" "usb_MFG=Canon" "adminurl=http://Printer.local./index.html?page=PAGE_AAP" "note=" "pdl=application/octet-stream,image/urf,image/jpeg,image/pwg-raster" "product=(Canon MB5100 series)" "ty=Canon MB5100 series" "priority=15" "qtotal=1" "rp=ipp/print" "txtvers=1"]
= enp1s0 IPv6 Canon MB5100 series                           Internet Printer     local
   hostname = [Printer.local]
   address = [192.168.0.241]
   port = [631]
   txt = ["rfo=ipp/faxout" "mopria-certified=1.2" "print-wfds=T" "PaperMax=legal-A4" "kind=document,envelope,photo,label" "Fax=T" "Scan=T" "Duplex=T" "Color=T" "UUID=00000000-0000-1000-8000-84BA3B777EB7" "URF=V1.4,CP1,PQ4-5,RS600,SRGB24,W8,OB9,OFU0,DM3,IS1" "usb_CMD=URF" "usb_MDL=MB5100 series" "usb_MFG=Canon" "adminurl=http://Printer.local./index.html?page=PAGE_AAP" "note=" "pdl=application/octet-stream,image/urf,image/jpeg,image/pwg-raster" "product=(Canon MB5100 series)" "ty=Canon MB5100 series" "priority=15" "qtotal=1" "rp=ipp/print" "txtvers=1"]