Just for completeness, Mick (original reporting on issue in different forum) said:-
$ scanimage -L device `escl:http://192.168.1.94:80' is a ESCL Brother DCP-J772DW flatbed scanner $ scanimage -T Output format is not set, using pnm as a default. Capability : [(null)] Capability : [image/jpeg] scanimage: rounded value of br-x from 0 to 0 scanimage: rounded value of br-y from 0 to 0 scanimage: sane_start: Invalid argument and similar error with $ scanimage > image.pnm and similar with Gscan2PDF. Bottom line is, escl driver bugs are going to affect a lot of Epson and apple AirScan protocol scanners. Debian bugs and upstream reports all explain wider issues with escl driver. I think it will be worth re-visiting the Backport idea after Gutsy has been out and tested for a while. PPA's have the problem they will keep being subjected to ongoing-changes and new breakages and so-on ...!. I can see there is a fundamental difficulty that drivers are not packaged separately and so difficult to backport a particular driver (escl driver being SRU'ed would be nice...). -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to sane-backends in Ubuntu. https://bugs.launchpad.net/bugs/1897962 Title: Out of Memory Error with Brother DCP-J7720W Status in sane-backends package in Ubuntu: Fix Released Status in sane-backends source package in Focal: New Bug description: Installed XSane from the repository but when I scan the viewer screen is blank and if I try to save I get "Error during save: out of memory" I believe that escl driver in 20.04 sane-backends is a problem and it is related to https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962539 sane-backends 1.0.31 should be considered for focal-backports and that if possible, escl driver could be individually SRU (Stable release update) in focal-updates. ppa:sane-project/sane-git fixes the issue. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1897962/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp