Install xsane tazpkg with depends (edit- and usb utils for usb scanner).
Add users to /etc/group if desired (do next steps as authorized user).
Plug scanner into computer.
Open Menu/Office/Xsane.

It worked for me with usb scanner.

Hi,
It don't works for me (i've added tux in scanner group) :
tux@slitaz:~$ xsane
libusb couldn't open USB device /proc/bus/usb/004/002:
Permission denied.
libusb requires write access to USB device nodes.
For fix this we must give write access to the device :
root@slitaz:/home/tux$ exit
tux@slitaz:~$ su
Password:
root@slitaz:/home/tux$ chmod a=rw /proc/bus/usb/004/002
How can we fix this and make the scanners works out of the box ?

Snow cooking scanner does not work.

http://forum.slitaz.org/index.php/vanilla/discussion/454/items-broken-in-cooking-snow

HP5300C Scanjet USB on slitaz-2.0 full install
Xsane from stable segfaults when I scan so lets try cooking
tazpkg set-release cooking
tazpkg get-install xsane --forced
tazpkg get-install sane-backends --forced
Yes to 3 dependencys
Scanning as root works with no segfault.
This configuration allows any user who is a member of the scanner group to scan:
lsusb returns
Bus 002 Device 007: ID 03f0:0701 Hewlett-Packard ScanJet 5300c/5370c
Open text editor and copy this code on one line:
SYSFS{idVendor}=="03f0", SYSFS{idProduct}=="0701", MODE="0664", GROUP="scanner", ENV{libsane_matched}="yes"

But replace my idVendor and idProduct values with those returned from your scanner in response to lsusb.
Save the text file as 91-local.rules in /etc/udev/rules.d folder
Reboot or udevadm trigger

Hi,
and thanks you have put me on a very good way.
There's a files named 55-sane.rules in /etc/udev/rules.d. This file contain all the scanners descriptions include in libsane, and there's your and mine. I've found why this don't work, there's theses line before the sanes description :

# For Linux >= 2.6.22 without CONFIG_USB_DEVICE_CLASS=y
# If the following rule does not exist on your system yet, uncomment it
# ENV{DEVTYPE}=="usb_device", NAME="bus/usb/$env{BUSNUM}/$env{DEVNUM}", MODE="0664", OWNER="root", GROUP="root"

Just de-comment the third and execute :
udevadm trigger

lol...

I guess some hardware problem can be solved with a better configuration of udev, but I just discover this software

Hope that will be ready for 3.0 so we will have a good hardware support :)

Gokhlayeh, thank you, that fixed the cooking snow scanner.

Udev often resolves sound problems too.

Hi Gokhlayeh,

The bulb in my scanner can't be turned off and on by linux software, I unplug scanner power to preserve the bulb,then power it on to scan.

When I do that with your configuration scanner group can't access the scanner unless I run udevadmin trigger or reboot the computer.

With the 91-local.rules configuration in my tutorial I can turn the scanner off and on,scanner group still has permissions,xsane scans for devices and connects to scanner with no additional steps from user.

I'm not sure to correctly understand your post. With my Slitaz on HDD, I've make the correction above then I can plug and unplug my scanner and everything works without additional step.

I just see that there's no scanner group on my /etc/group, maybe there's a link.