[sane-devel] As instructed by /etc/udev/rules.d/libsane.rules

[Ciprian Ciubotariu]

Output of lsusb:

Bus 003 Device 002: ID 03f0:3011 Hewlett-Packard PSC 1100 series

So I have tried with... 

ATTRS{idVendor}=="03f0", ATTRS{idProduct}=="3011", MODE="0664", 
GROUP="scanner", ENV{libsane_matched}="yes"

It's a printer-scanner combo.