On Fri, 6 May 2016, Piyavkin wrote:
Hi, Pierre,
I'm not sure if it is applicable in your case, but may be some 
firmware required or some config-file with proper way to it was 
recently rewritten/moved.
I have an old Epson Perfection 2480 Photo scanner and my usual way to 
install/reinstall it is like such:
. . .
   hi Dmitry
   Thank you for your detailed reply, but in my case I'm quite sure that
   the problem is no with xsane, but at the system level, for the
   following reasons:
   1/ The other scanning programs don't find the scanner either
      (scanimage, simple-scan, hp-scan)
   2/ on my desktop, where the scanner works,  I don't have a snapscan 
directory
   3/ as I said, the scanner is seen and works via the web interface
   4/ I just discovered a more worrying thing:
      the hp utility hp-probe doesn't find any device (printer or 
scanner)
      On my desktop, "hp-probe -bnet" gives:
      hp:/net/Officejet_Pro_6830?ip=192.168.1.9 Officejet_Pro_6830  
HPA48092
      and on the laptop:
      warning: No devices found on the 'net' bus
      As system-config-printer finds the device, I think that the problem
      is related to HP software, but I'm unable to find how...
best regards,