HI, thank you very much for this long and good explanation.
Unfortunately and this is REALLY strange I can't find anymore a working version of sane for me. I tried version 1.0.12, 1.0.13, 1.0.14 on Kernel 2.4.22, 2.4.24 and 2.4.26. This is a behaviour, I don't understand. I will test my scanner on a windows machine next days. I hope, the reason for my problems is not an out of order scanner. If you introduced an Autofocus mode in sane 1.0.14 into the canon backend. why I have also problems with backend 1.0.13 and 1.0.12? Would it help, to provide some debug output or some straces? Thanks for your help Best regards Thomas
