[sane-devel] Canon MF746Cx not working under OpenSUSE

[Andreas Croci]

Hello,

I have a multifunction Canon MF746Cx and several machines: one Ubuntu
22.04 and one OpenSUSE Leap 15.5 (the others don't matter really).

In Ubuntu, when I run "scanimage -L" I get

[00:06:02.547369] [bjnp] add_scanner: Scanner MF745C/746C is not
supported, model is unknown! Please report upstream
Created directory: /var/lib/snmp/cert_indexes
device `escl:http://192.168.200.103:80' is a Canon MF745C/746C
platen,adf scanner
device `airscan:e0:Canon MF745C/746C' is a eSCL Canon MF745C/746C
ip=192.168.200.103

so I am able to scan using the escl and airscan backends.

On OpenSUSE there are no such backends in /etc/sane.d/ and I didn't find
any option to install them (zypper doesn't find them in the default
repositories). Also there is no dll.d direcotry under /etc/sane.d/ in
OpenSUSE.

Another thing is that in OpenSUSE, other than in Ubuntu, all backends
are commented out in /etc/sane.d/dll.conf, so in order to try making it
work I uncommented "pixma" because I thought it would be the closest to
the right backend for my machine. I also tried adding in pixma.conf the
line "bjnp://address.to.scanner" and "mfnp://address.to.scanner" and now
"scanomage -L" gives me

[00:17:39.635393] [bjnp] add_scanner: Scanner MF745C/746C is not
supported, model is unknown! Please report upstream

No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).

"sane-find-scanner" doesn't find anything.

How can I get this scanner to work in OpenSUSE too? Is there a place
where I can download either "airscan" or "escl" for this OS?

Thank you,

Andreas