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<!-- received="Sat Nov 1 03:38:04 1997 PST" -->
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<!-- sent="Sat, 1 Nov 1997 12:37:50 +0100 (MET)" -->
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<!-- name="Stefan Luettringhaus-Kappel" -->
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<!-- email="stefan@uran.informatik.uni-bonn.de" -->
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<!-- subject="Re: Mustek 1200SP: Missing Lines" -->
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<!-- inreplyto="199711010540.VAA26568@panda.mostang.com" -->
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<title>sane-devel: Re: Mustek 1200SP: Missing Lines</title>
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<h1>Re: Mustek 1200SP: Missing Lines</h1>
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<b>Stefan Luettringhaus-Kappel</b> (<a href="mailto:stefan@uran.informatik.uni-bonn.de"><i>stefan@uran.informatik.uni-bonn.de</i></a>)<br>
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<i>Sat, 1 Nov 1997 12:37:50 +0100 (MET)</i>
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<p>
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<li> <b>Messages sorted by:</b> <a href="date.html#0">[ date ]</a><a href="index.html#0">[ thread ]</a><a href="subject.html#0">[ subject ]</a><a href="author.html#0">[ author ]</a>
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<li> <b>Next message:</b> <a href="0001.html">David Mosberger-Tang: "forwarded message from Henning Busacker"</a>
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On Fri, 31 Oct 1997, David Mosberger-Tang wrote:<br>
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<p>
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<i>> >>>>> On Sat, 01 Nov 1997 01:16:21 +0100, Joachim Woll <<a href="mailto:woll@physik.uni-kassel.de">woll@physik.uni-kassel.de</a>> said:</i><br>
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<i>> </i><br>
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<i>> Joachim> <a href="mailto:becka@rz.uni-duesseldorf.de">becka@rz.uni-duesseldorf.de</a> wrote:</i><br>
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<i>> </i><br>
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<i>> >> This is really much ... What FW revision do you have ? What</i><br>
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<i>> >> happens when setting backtrack=yes ?</i><br>
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<i>> </i><br>
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<i>> Joachim> Sane is reporting, that the firmware revision is 1.05Well,</i><br>
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<i>> Joachim> when I set "force backtrack" within the graphical frontend</i><br>
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<i>> Joachim> the problem seem to be fixed in gray scale mode. In color</i><br>
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<i>> Joachim> mode the tree colors are vertically shifted against each</i><br>
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<i>> Joachim> other.</i><br>
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<i>> </i><br>
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<i>> >> Ah. Seems to prove my guess that it happens at buffer boundaries.</i><br>
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<i>> </i><br>
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<i>> Joachim> Yes. I think so too...</i><br>
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<i>> </i><br>
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<i>> Did anyone have the dropped line problem before sane-0.62? In 0.62,</i><br>
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<i>> the overlapped SCSI I/O was introduced for Linux which, if the problem</i><br>
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<i>> is timing-dependent, could make a difference.</i><br>
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<i>> </i><br>
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<p>
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Yes, already in 0.4x. Also, sometimes lines are missing, and sometimes <br>
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lines are repeated, i.e. like 12342345.<br>
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<p>
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Best way to see the error: print 45 degree one pixel lines at 300 dpi and<br>
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scan them. The error will be visible at every buffer boundary.<br>
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<p>
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Regards,<br>
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Stefan<br>
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<p>
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<pre>
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--
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Dr. Stefan L<>ttringhaus-Kappel <><><><><><><><><><><><><><><><><><><><><>
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Institut f<>r Informatik III Phone +49 (228) 73-4536
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Universit<EFBFBD>t Bonn Fax +49 (228) 73-4382
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R<EFBFBD>merstra<EFBFBD>e 164 <a href="mailto:stefan@uran.informatik.uni-bonn.de">stefan@uran.informatik.uni-bonn.de</a>
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D-53117 Bonn (Germany) <a href="http://www.informatik.uni-bonn.de/~stefan/">http://www.informatik.uni-bonn.de/~stefan/</a>
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<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
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<p>
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<p>
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<pre>
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--
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Source code, list archive, and docs: <a href="http://www.mostang.com/sane/">http://www.mostang.com/sane/</a>
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</pre>
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<li> <b>Next message:</b> <a href="0001.html">David Mosberger-Tang: "forwarded message from Henning Busacker"</a>
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