Glinx [1] filed a deletion request for canon-pixma-lt7500-complete [2]:

Thank you for this. Printing works, but not the scanner. No scanner software is installed. Any help much appreciated.

[1] https://aur.archlinux.org/account/Glinx/ [2] https://aur.archlinux.org/pkgbase/canon-pixma-lt7500-complete/