Yes, I have seen a rather short "Sane does not support the dust removal with the Perfection 4870" here:
http://lists.alioth.debian.org/pipermail/sane-devel/2004-September/012111.html But does somebody at least have some idea how to read an infrared channel? It looks that quite a number of scanners is able to provide that information nowadays but looking at backend sources only coolscan and coolscan2 drivers can do that now and the situation did not change for years. Are there any plans on the subject? As a matter of fact yes, I am interested in that capability for Epson Perfection 4870. Apparently VueScan, http://www.hamrick.com/, is able to perform that feat on Linux as well. Michal ps. Please cc any eventual answers to me too.
