plustek@linuxhacker.org

plustek@linuxhacker.org


Subject: Vertical bars on right 1/3
From: David Shochat
Date: Sun, 23 Feb 2003 14:34:52 -0500

I have sane-backends 1.0.11 and a Canoscan N650U scanner. First let me say how pleased
I was to discover that my scanner is now supported (I had given up hope some time ago
that it would ever be usable under Linux). Things are working quite well. I have one
problem though: When scanning a full 8.5 x 11 inch page at a 300dpi resolution, I get
a gray vertical band covering roughly the right-hand 1/3 of the page. This is superimposed
on the scanned image which is still visible, even under this band. When you look closely,
you can see that the gray band is really composed of very thin alternating black and
white vertical lines, roughly 80 alternations per inch. If I decrease the scanning resolution,
the width of the band of vertical lines decreases until at 190 dpi, they disappear entirely.
Is this a known problem? Anything I can do about it?
Thanks.
-- David


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