[sane-devel] CIS scanners: to calibrate or not to calibrate :) this is the question (my scanner is mad and lazy :)

Rene Rebe rene at exactcode.de
Sat Jun 28 08:17:40 UTC 2008

litlle girl wrote:
> Hi guyz,
> i recognize that win drivers dont calibrate my CIS scanner before scan.
> gt68xx backend is loosing about 20sec every time on calibrating!
> Is there any way to turn off gt68xx backend calibrating?
> Most stuff i scan at lineart and i don't need calibrating neither
> loosing about 20sec every time.
> Is 20sec calibrating normal ?? Or my scanner is lazy and mad ?? :)
> Plustek OpticSlim 2400 Plus @ Plustek OpticSlim 2400 override
> (vendor=0x07b3, product=0x0454 [1200dpi USB Scanner], chip=GT-6816)

The windows driver probably calibrates once, when the scanner is
first used, and stores the reference data somewhere (file, registry,

The SANE driver should try to do the same (not registry of course,
but some /var/... whatever file-system location.


   René Rebe - ExactCODE GmbH - Europe, Germany, Berlin
   http://exactcode.de | http://t2-project.org | http://rene.rebe.name

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