TomTasche, thank you for reporting this and helping make Ubuntu better.
As per https://wiki.ubuntu.com/Releases 11.10 reached EOL on May 9,
2013.
If you are having an issue in a supported release (ex. 16.04) please
file a new report, and feel free to subscribe me to it.
** Changed in: sane-backe
Download drivers from Brother website both for printer and scanner and my model
is DCP-L2540DW
http://support.brother.com/g/b/downloadtop.aspx?c=sg&lang=en&prod=dcpl2540dw_us_as
Choose Linux and deb to download. After downloading its very likely the file is
found in Download file .
Open terminal
This looks like duplicate of
https://bugs.launchpad.net/ubuntu/+source/xsane/+bug/478761.
Using a suggestion there, I worked around this by adding myself to group lp and
then restarting.
To do this using the command line:
groups yourusername
usermod -G allyourgroups,commaseparated,lp yourusername
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: sane-backends (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/913938
Title:
** Attachment added: "sudo strace -o strace.out -f scanimage -T"
https://bugs.launchpad.net/bugs/913938/+attachment/2664883/+files/sudostrace.out
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https://bugs.launchpad.net/bugs/91393