Hi Erik, thanks for your fast response. I will try this. Ineed, the scanner is quite old and looks quite dusty.
I found out some more details. it seems to be connected to the resolution. using 100 dpi it works, 150 fails at about 12.5%: scanimage -p -v --resolution 150 > /www/tmp/test.pnm scanimage: scanning image of size 1264x1765 pixels at 24 bits/pixel scanimage: acquiring RGB frame scanimage: min/max graylevel value = 102/255 scanimage: sane_read: Error during device I/O so, to me this supports your tipp. I try to clean the scanner parts and report on the results regards, Yves 2010/8/30 Erik Lotspeich <erik at lotspeich.org>: > Hi, > > I had a similar problem with my HP Scanjet 6300. ?Although I fiddled > with the timeout in the libsane code, I found that the real problem was > dust! ?Although the glass was clean, the internal mirrors were covered > in a thick layer of dust and the scanner was having trouble > self-calibrating. ?Cleaning the internal mirrors made the scanner > operate much faster, more reliably and with better image quality! > > Regards, > > Erik > > Yves Jeanrenaud wrote: >> Hi all, >> again, issues with sane. I compiled latest built successfull again, >> all working, inted too. from console I can scan perfectly, but when I >> use sanetwain on windows (used to work before with same config but >> different scanner) it fails. >> the program finds the server and the scanner. preview works perfectly, >> but when scanning, the scanner starts to move like usually, sanetwain >> seems to receive not all data. the progress bar stops after some >> inches and the scanner finishes its work. then, sanetwain throws a >> "timeout when reading word from socket" >> what can I do about this? >> >> regards, >> >> yves >> >> -- >> sane-devel mailing list: sane-devel at lists.alioth.debian.org >> http://lists.alioth.debian.org/mailman/listinfo/sane-devel >> Unsubscribe: Send mail with subject "unsubscribe your_password" >> ? ? ? ? ? ? ?to sane-devel-request at lists.alioth.debian.org >
