On Wed, Jun 22, 2022 at 8:32 AM Patrick O'Callaghan <pocallaghan@xxxxxxxxx> wrote:
(See ... for context)
I have a Brother All-in-one wireless laser printer/scanner which has
worked for years using the manufacturer's driver blob. I now want to
configure it using the printer-driver-brlaser package from the Fedora
repo.
I've uninstalled the original Brother driver and deleted the printer
config using the CUPS interface.
I then added a new printer using the KDE System Settings widget, and
attempted to print a test page. This appears to go through, but then
the queue status shows "Unable to locate printer".
I deleted that configuration and tried again using the CUPS web
interface. This shows up as:
dnssd://Brother%20DCP-7055W._ipp._tcp.local/
I suspect this detection doesn't adequately check the details of the
IPP support. Given the age of the printer, IPP may not be implemented
"properly" by current standards.
Printing a test page again shows "Unable to locate printer". This
happens both using the generic IPP driver and the specific model driver
from the RPM package.
I looked at the
Brother DCP-7055W
Advanced User's Guide, which is dated
2012. I can't see any mention of IPP or AirPrint.
https://discussions.apple.com/thread/7199902 says this model was not
on Apple's list of supported printers for AirPort in 2015.
https://wiki.gentoo.org/wiki/Brother_networked_printer says the printer
works, but gives no configuration details
https://www.pwg.org/ipp/ippguide.html tells you to "Consult your Printer documentation
or the Printer's Bonjour (DNS-SD)
registration information to determine the proper hostname,
port number,
and path to use for your Printer." It would be interesting to know why
IPP is failing, but I suspect you are stuck with Brother's rpm.
The CUPS systemd service and AVAHI daemon are both running, as is
systemd-resolved, which handles DNS-SD (I reloaded the latter just in
case.)
I'm out of ideas. To repeat: both printing and scanning work correctly
with the manufacturer's driver, so it's not a hardware or connection
problem.
Any thoughts before I give up and revert to the binary blob?
poc
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