On Mon, Sep 27, 2010 at 12:31 PM, stef <stef.dev at free.fr> wrote: > ? ? ? ?forgot to check that your scanner was supported by the lexmark backend. > Is it the case ? Sometimes scanners are merely relabeled models.
I don't know. On sane-project.org the model is listed as unsupported. I have noticed the other Xerox DocuMate scanners are supported by the avision backend. I'm unsure how to find out which backend is being used when I run xsane. > ? ? ? ?Shading correction is varying from backend to backend with the > capabilities of the underlying hardware. I have thought that it could be the problem you described above - the white-calibration area is dirty. However I can't imagine what kind of dirt would make this pattern...I uploaded a sample here: http://sqrville.org/software/colored_bands.png Recently, I was able to make a few successful scans. I can't reproduce this now or figure out what made it work and what made it stop working later. Doing some more testing, I noticed that the scanner has thinner bands of discoloration (about half the width of before) at a resolution setting of 600dpi. It is also worth noting that, to get the scanner working at all, I had to add this line to /lib/udev/rules.d/40-libsane.rules: # Xerox DocuMate510 ATTRS{idVendor}=="04a7", ATTRS{idProduct}=="0446", ENV{libsane_matched}="yes" Chris
