Do the following, depending on your operating system:
On a terminal window, type the following, and then press Enter:rpm -e mfp-network-scan
On a terminal window, type the following, and then press Enter:
rpm -e mfp-network-scan
On a terminal window, type the following, and then press Enter:dpkg -r mfp-network-scan
dpkg -r mfp-network-scan
Remove the mfp_nscan entry from the /etc/sane.d/dll.conf file.