plustek: 2200c
Subject:
Re: 2200c
From:
Gerhard Jaeger ####@####.####
Date:
28 Nov 2002 15:34:19 -0000
Message-Id: <200211281629.39449.gerhard@gjaeger.de>
Thanks for the detailed descriptions, the verticle line
problem is known, but not yet fixed.
The 16bit stuff is neither a problem nor a bug, because when
selecting 42bit mode, you got 14bit resolution per color channel,
this is the maximum the LM9832 chip supports (14*3 = 42)...
The motor should be tuned somehow, when I've finished the
CanoScan stuff, I'll go back to the HP problems...
Regards
Gerhard
On Freitag, 29. November 2002 02:03, 2 wrote:
> Hi,
> I've just been playing with the plustek driver (sane 1.0.9) on a hp
> 2200c and I've noticed a few bugs.
>
> The scanner will not scan higher than 16bits, even if 42bit mode is
> selected. Using Kooka, it will only work in normal color mode. When
> 42bit mode is selected, the lamp comes on and nothing happens.
>
> The motor is noticeably noisier under linux than windows. I'm guessing
> this might be the plustek driver telling it to take larger steps than
> normal.
>
> I get faint verticle lines in a couple of spots on the scans, which are
> not present under windows.
>
> Binary scans are granier under linux than windows.
>
> Faint lines and details on white backgrounds are either discolored or
> lost altogether.
>
> Any ideas/fixes/experiments would be appreciated. I can also send an
> image scanned under windows and linux if that will be any help.
>
> Regards,
> Francis
>
