I think the fix discussed above with “lp” udev group can also help with USB multi-function printers/scanners. My understanding of the problem is: a single device can not be owned by multiple groups in udev. So as soon as you add the rule with GROUP=“scanner”, printing may stop working. It’s kind of random, sometimes it works, so I spent a lot of time debugging it.
The solution for me was to use GROUP=“cups” in the scanner rule mentioned in SANE#Permission problem. I tried to edit the page, but my edit was reverted. Maybe someone could phrase it better than me.
Maxtomin (talk) 07:30, 13 June 2019 (UTC)
Unclear / Vague Section: Network attached scanners
I am not sure what the original author meant when he wrote: "Some scanners may be network attached and already provide their own server." What does he refer to? Scanners that have a web-interface from which one can create scans? So the reader could spare the trouble of installing sane and use that? Or is he referring to printers that can be used in a PnP fashion if sane-airscan is installed? Am I missing something? It might also be a good idea to mention that many modern scanners will immediately work over the network as long as you have sane-airscan installed. (Perhaps in the Installation Section?) LoNaAleim (talk) 12:56, 30 January 2021 (UTC)
Adding troubleshooting information for hpaio attached scanners
I would like to add some minor troubleshooting information for HP scanners that are accessed via hpaio. Some of these scanners need a plugin to operate and often stop working after an hplip upgrade because the plugin remains misaligned wrt the hplip version. The problem is that users do not get a prompt to install a new plugin, but just a very misleading indication of an I/O error.
Adding a quick note about the fact that some HP scanners need a plugin, that the latter can be installed via the AUR hplip-plugin package or using the hp-plugin command, that many issues can be caused by a version misalignment between the plugin and hplip could probably be useful (at least unless the hplip package can gain a post install script checking the plugin version and warning if needed).
Any opinion, suggestion?
—This unsigned comment is by Callegar (talk) 21:37, 15 March 2022 (UTC). Please sign your posts with ~~~~!
IPv6 should be in the saned configuration file
Hi I think the section on "Sharing your scanner over a network" should mention that to allow access from an Arch Linux remote workstation you need to include the IPv6 network address in the /etc/sane.d/saned.conf file (e.g. [fe80::feaa:14ff:fe8e:fa2b]/64). I had only the IPv4 network address (like the example in this wiki), which was OK to allow access from Ubuntu workstations but an Arch machine on the same network would not connect until I added the IPv6 address. I'm not experienced in IPv6, there are probably also ways of configuring Arch workstations if the server configuration can't be changed.
Silver Saucepan (talk) 16:55, 6 May 2023 (UTC)