Hi,
my udev rules file told me I should submit my printer/scanner to this address. I have an HP Deskjet F2120 All-in-One and here's the rule I created to match it:
# Hewlett-Packard DeskJet F2120
ATTRS{idVendor}=="03f0", ATTRS{idProduct}=="7d04", MODE="0664", GROUP="scanner", ENV{libsane_matched}="yes"
Thanks.
David Landry