On 03/31/2014 07:34 AM, Stef wrote: > the problem is coming from incorrect calibration by the backend. > Gain is too high. Could you please run SANE 1.0.24 backend version with > traces enabled, and send me log file and *.pnm files created during > calibration ? > In a command shell type: > export SANE_DEBUG_GENESYS=255 > export SANE_DEBUG_GENESYS_LOW=255 > export SANE_DEBUG_GENESYS_GL646=255 > export SANE_DEBUG_GENESYS_GL841=255 > scanimage -d genesys --resolution 75 --preview --mode Color > 2>preview.log >preview.pnm >
I took some samples, even one with --resolution 150 and uploaded them here: http://blog.alvarezp.org/files/scan-hp3670/hp-sj3670-samples-1.tar.gz Some of those came out ok, some didn't. Only --resolution 150 threw out a full set of pnm calibration files. --resolution 175 only threw out warmup*.pnm files.