Bug#969169: cups: Driverless printing not working

[Brian Potkin <claremont102@gmail.com>]

On Fri 28 Aug 2020 at 17:12:21 +0200, Kurt Roeckx wrote:

> On Fri, Aug 28, 2020 at 03:23:23PM +0100, Brian Potkin wrote:
> > Thank you for your report, Kurt. Please provide the outputs of
> > 
> 
> =   eth0 IPv4 Brother HL-L2370DN series                     Internet Printer     local
>    hostname = [BRN3C2AF4B40D45.local]
>    address = [192.168.0.154]
>    port = [631]
>    txt = ["mopria-certified=1.3" "print_wfds=T" "UUID=e3248000-80ce-11db-8000-3c2af4b40d45" "PaperMax=legal-A4" "kind=document,envelope,label,postcard" "URF=W8,CP1,IS4-1,MT1-3-4-5-8,OB10,PQ3-4-5,RS300-600-1200,V1.4,DM1" "TBCP=F" "Transparent=T" "Binary=T" "PaperCustom=T" "Scan=F" "Fax=F" "Duplex=T" "Copies=T" "Color=F" "usb_CMD=PJL,PCL,PCLXL,URF" "usb_MDL=HL-L2370DN series" "usb_MFG=Brother" "priority=25" "adminurl=http://BRN3C2AF4B40D45.local./net/net/airprint.html"; "product=(Brother HL-L2370DN series)" "ty=Brother HL-L2370DN series" "note=" "rp=ipp/print" "pdl=application/octet-stream,image/urf,image/pwg-raster" "qtotal=1" "txtvers=1"]

The URF= key indicates an AirPrint printer. The pdl= key has image/urf
in it. The printing system can easily handle printing to the HL-L2370DN
if it is an IPP device.

> intrepid:~#   ippfind -T 5
> ipp://BRN3C2AF4B40D45.local:631/ipp/print

The HL-L2370DN is an IPP device. The second line is a URI for it.

> intrepid:~#   lpstat -l -e
> Brother_HL_L2370DN_series network none ipp://Brother%20HL-L2370DN%20series._ipp._tcp.local/

Brother_HL_L2370DN_series is the destination used with a CUPS temporary
queue. See

   https://wiki.debian.org/CUPSDriverlessPrinting#tempq

> intrepid:~#   lpinfo -v
> network ipp://Brother%20HL-L2370DN%20series._ipp._tcp.local/

ipp:/... is another URI for the printer. Execute

  lpadmin -p <a_chosen_print_queue_name> -v <URI> -E -m everywhere

and test printing with

  lp -d <queue_name> /etc/nsswitch.conf 

> For the Epson printer, I now see 3 in a print dialog, while there is
> only 1 in the cups admin, and at least one of them doesn't work.

Probably the final bullet point in the above link and nothing to do with
the CUPS printing system.

Cheers,

Brian.