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<TITLE>sane-devel: Re: Microtek Scanmaker X6 SCSI</TITLE>
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<H1>Re: Microtek Scanmaker X6 SCSI</H1>
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<STRONG>From:</STRONG> Bernd Schroeder (<A HREF="mailto:bernd@aquila.muc.de?Subject=Re:%20Microtek%20Scanmaker%20X6%20SCSI&In-Reply-To=&lt;20000129165723.4750.qmail@aquila.muc.de&gt;"><EM>bernd@aquila.muc.de</EM></A>)<BR>
<STRONG>Date:</STRONG> Sat Jan 29 2000 - 09:01:24 PST
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Hi,
<BR>
<P>On Wed, Jan 26, 2000 at 09:16:47AM +0100, Harald Finster wrote:
<BR>
<EM>&gt; Christoph Hohn wrote:
</EM><BR>
<EM>&gt; &gt;
</EM><BR>
<EM>&gt; &gt; Hello !
</EM><BR>
<EM>&gt; &gt; My name is Christoph Hohn and my problem is the sane-package under SuSE 6.1.
</EM><BR>
<EM>&gt; &gt; I have got a Microtek Scanmaker X6 SCSI and an Adaptec AVA
</EM><BR>
<EM>&gt; &gt; 1505-SCSI-Controller-Card.
</EM><BR>
<EM>&gt; &gt; When I start scanning a picture (24 bit) with xscanimage for the first time, the
</EM><BR>
<EM>&gt; &gt; scanned picture looks quite good.
</EM><BR>
<EM>&gt; &gt; When I try to scan it again, the picture look pixelized and the quality of the
</EM><BR>
<EM>&gt; &gt; colors is bad.
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; Hello,
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; I have a similar configuration (SuSE 6.3, AVA1055, X6) and experienced
</EM><BR>
<EM>&gt; similar problems :
</EM><BR>
<EM>&gt; Scanning in flatbed mode occasionaly results in wrong colours.
</EM><BR>
<EM>&gt; This affects the preview and the 'real' scan independently, i.e.
</EM><BR>
<EM>&gt; I might get a correct preview and a 'wrong' scan and vice versa.
</EM><BR>
<EM>&gt; I can not reproduce this error.
</EM><BR>
<EM>&gt; Using the transparancy media adapter results in chaotic images
</EM><BR>
<EM>&gt; in preview and in scan mode. Sometimes the whole system hangs until
</EM><BR>
<EM>&gt; I switch the scanner off.
</EM><BR>
<P>And I still do not know why some of the X6's work with the TMA option,
<BR>
whereas others don't. This is especially true for grayscale mode, because
<BR>
in grayscale mode the backend simply copies the data as they are transferred
<BR>
from the device into the application buffer.
<BR>
<P>As I wrote in my other mail older versions of the backend had a problem
<BR>
with pixelized images on an X6. The solution was to exchange two of
<BR>
the SCSI commands. Maybe something similar is necessary in this case.
<BR>
<P>If possible, can you trace a scan (with wine, for example) and compare
<BR>
the output with the debug output of the backend or send me the output ?
<BR>
I do not have a TMA and cannot test it. When I force the backend into
<BR>
TMA mode it silently starts scanning from the flatbed, but the colors
<BR>
and size of the image are OK.
<BR>
<P>Bernd
<BR>
<P><PRE>
--
Bernd Schroeder
Email: mailto:<A HREF="mailto:bernd@aquila.muc.de?Subject=Re:%20Microtek%20Scanmaker%20X6%20SCSI&In-Reply-To=&lt;20000129165723.4750.qmail@aquila.muc.de&gt;">bernd@aquila.muc.de</A>
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<P>--
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