16.04 sane no longer sees network scanner

[Paul Carmichael]

14.04 used to see and access my Samsung Multifunction Xpress C460FW networked scanner. 16.04 doesn't see it. I don't see any windows shares either.

[Paul White (paulw2u)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:

apport-collect 1615393

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[penalvch (penalvch)]

Paul Carmichael, the setup for network scanning via saned has changed in 16.04. For more on this, please see https://help.ubuntu.com/community/SaneDaemonTutorial . If this does not provide resolution, please reopen this report, and provide the information requested in https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1615393/comments/1 .

[Paul Carmichael (paul-paulcarmichael)]

I don't know how to re-open the bug. Somebody has not understood the bug. It is not a "saned networked printer/scanner", rather a standalone Samsung networked printer/scanner. I ran that apport thing and it came up with nothing.

[penalvch (penalvch)]

Paul Carmichael, so few details were provided, it's hard to "understand" what the issue is. ;)

For example:
1) What is the full printer manufacture and model? Saying it's a Samsung networked printer is not enough information.
2) Did it ever work in 16.04, and then broke after an update?

[Paul Carmichael (paul-paulcarmichael)]

Ok. It's a Samsung C460FW (standalone colour laser multi). Like I said, 14.04 would see it as soon as I opened xsane. I would be offered the choice of the Samsung or the local Canon. As soon as I moved to 16.04, it no longer sees the local Canon (separate bug), so it would have been nice to have been able to use the Samsung instead, but it is no longer visible. Now I have to start a Windows box to be able to scan.

Incidentally, the Ubuntu box can still use the printer as before. Just cannot scan.

[penalvch (penalvch)]

Paul Carmichael, to clarify, in 14.04 was the Samsung scanner plug and play, in that you didn't have to configure anything locally and plugged in an ethernet cord and could immediately scan with Ubuntu via the network?

[Paul Carmichael (paul-paulcarmichael)]

Exactly. I didn't do anything on the linux box. Every machine on the subnet could see it. The windows boxes still can. I presume the scanner and printer interfaces are different protocols as the printer still works fine.

[penalvch (penalvch)]

Paul Carmichael, as per http://www.samsung.com/us/support/owners/product/SL-C460FW/XAA there is a linux based scan driver for this device. Would this provide a WORKAROUND?

[Paul Carmichael (paul-paulcarmichael)]

Thanks. Just installed that and it made no difference.

[penalvch (penalvch)]

Paul Carmichael, after you contact Samsung about their driver not working for you, please advise here on the details of the conversation.

[Paul Carmichael (paul-paulcarmichael)]

Oh, you're upset.

The last time I contacted Samsung over something, they guessed wrong and it cost me 100 euros and the problem not resolved.

So you think that this problem has nothing to do with moving to 16.04? Actually, loads of stuff broke on this machine and my server was bricked by the upgrade.

Still, never mind, eh.

Oh, and I strongly suspect that the driver I just installed was for a locally connected machine. But there's no documentation as far as I can see, so I can't be sure.

[Launchpad Janitor (janitor)]

[Expired for sane-backends (Ubuntu) because there has been no activity for 60 days.]

[Don Bowman (donbowman)]

For myself as well the C460FW was plug&play until 16.04++.

Now my workaround is to edit /etc/sane.d/xerox_mfp.conf and add add line:
tcp PRINTERIP 9400

and then it resumes working.

[Don Bowman (donbowman)]

You may also need to add 'smfp' to /etc/sane.d/dll.conf.

And check:

SANE_DEBUG_DLL=128 scanimage -L

to see a line like:
device `smfp:net;172.16.0.222' is a Samsung C460 Series on 172.16.0.222 Scanner
device `smfp:net;fddcb6f32fe00000021599fffecdf33f' is a Samsung C460 Series on fddc:b6f3:2fe0:0:215:99ff:fecd:f33f Scanner