@CONFIGDIR@/xerox_mfp.conf USB scanners do not need any configuration. For SCX-4500W in network mode you need to specify
tcp host_address [port]
The host_address is passed through resolver, thus can be a dotted quad or a name from /etc/hosts or resolvable through DNS.
@CONFIGDIR@/xerox_mfp.conf The backend configuration file. By default all scanner types/models are enabled, you may want to comment out unwanted entries.
@LIBDIR@/libsane-xerox_mfp.a The static library implementing this backend.
@LIBDIR@/libsane-xerox_mfp.so The shared library implementing this backend (present on systems that support dynamic loading).
SANE_DEBUG_XEROX_MFP If the library was compiled with debug support enabled, this environment variable controls the debug level for this backend. Higher debug levels increase the verbosity of the output. Example: export SANE_DEBUG_XEROX_MFP=4
Samsung SCX-4500W scan over network support by Alexander Kuznetsov < acca(at)cpan.org >.
Color scanning on Samsung M2870 model and Xerox Cognac 3215 & 3225 models by Laxmeesh Onkar Markod < m.laxmeesh@samsung.com >.