On Fri, 2017-04-21 at 13:37 +0100, Patrick O'Callaghan wrote:
I have a Brother DCP-7055W all-in-one laser printer and scanner,
connected by Wifi to my LAN. The printer works perfectly, and the
scanner worked at least up until a couple of weeks ago when I last used
it. Now, it seems to have disappeared. Both simple-scan and scanimage
report no scanners found.
I've reinstalled the RPM package downloaded from
brother.com. I've
rebooted Fedora (you never know). I've also checked that the scanner
itself is working (from a Windows laptop).
After a huge amount of to-ing and fro-ing, the details of which are too
boring to relate, it turned out to be something devastatingly simple
(isn't it always?). The scanner had somehow become assigned to the
wrong IP address in my router's static DHCP table. What threw me was
that it still worked as a printer *despite having the wrong IP number*.
I can only assume that CUPS was finding it with some kind of broadcast
or UPNP search, but that SANE needs more precise information.
Wouldn't it be great if CUPS and SANE worked better together, or even
merged?
Apologies for wasting everyone's time, but it works now.
poc