Hello,
I added the following to /etc/udev/rules.d/45-libsane.rules, and am
sending it along as per the instructions... :
SYSFS{idVendor}=="04c5", SYSFS{idProduct}=="10f2", MODE="664",
GROUP="scanner"
(I had to make a corresponding addition to fujitsu.conf as well, i.e.,
usb 0x04c5 0x10f2
and things seem to be working so far.)
Best,
Jacob