2008/6/29 Gerhard Jaeger <gerhard at gjaeger.de>: > Hi, > > On Freitag, 27. Juni 2008, litlle girl wrote: > Most probably it will calibrate. Right after installation of the drivers, > you'll be asked to insert a white calibration paper with black marks on > it. Then it starts calibration and stores this data somewhere. Yes, i think too, that win calibrates scanner right after installation of the drivers. > Hi guyz, > i recognize that win drivers dont calibrate my CIS scanner before scan. I ment win dont calibrate every time :)
It was difficoult to see win calibration bacause my scanner Plustek OpticSlim 2400+ dont need to insert a white calibration paper with white and black marks on it, because white and black marks are inside the scanner. >> gt68xx backend is loosing about 20sec every time on calibrating! >> Is there any way to turn off gt68xx backend calibrating? > have a look @ the M12 entry, the flag GT68XX_FLAG_SHEET_FED > should do the trick. It'll avoid calibration. > The plustek-backend is able to store calibration data and to > read them back before scanning. This backend (and probably most > others also) needs the value from coarse calibration (the AFE stuff) > and the fine calibration (for each sensor pixel). > The calibration data is stored for each user in its ~/.sane directory. > HTH > Gerhard Maybe code from plustek-backend will be usable in GT68XX backend??