Umax astra 1220p

[Rumko]

i have fbsd 4.9-release and installed sane-backends and sane-frontends from 
ports, then i edited the dll.conf and deleted the "#" in front of umax_pp and 
edited the umax_pp.conf (changed the device to various values 
including /dev/ppi0 /dev/lpt0 auto) ... after that i ran "scanimage -L" but 
it didnt find my scanner ... do i have to restart my computer (which i really 
dont want to) or what to get the scanner detected?