IT/Software/Applications/Scanning
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sane
This is the machine behind scanning on ubuntu.
Install the ppa
sudo add-apt-repository ppa:sane-project/sane-git
If you have the old one you need to
sudo ppa-purge ppa:rolfbensch/sane-git
Then update and upgrade.
gscan2pdf
Brilliant program
Scanning over the network
This can be very tricky
Somewhere in December 2020 this broke.
On the machine serving the printers you need to purge ippusbxd
Now we need to install the debs for airscan and ipp-usb
Reboot.