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<title>sane-devel: Re: Mustek 1200SP: Missing Lines</title>
<h1>Re: Mustek 1200SP: Missing Lines</h1>
<b>David Mosberger-Tang</b> (<a href="mailto:David.Mosberger@acm.org"><i>David.Mosberger@acm.org</i></a>)<br>
<i>Fri, 31 Oct 1997 21:40:46 -0800</i>
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<li> <b>Previous message:</b> <a href="0176.html">David Mosberger-Tang: "Re: Canon CanoScan 300/600/2700F"</a>
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<i>&gt;&gt;&gt;&gt;&gt; On Sat, 01 Nov 1997 01:16:21 +0100, Joachim Woll &lt;<a href="mailto:woll@physik.uni-kassel.de">woll@physik.uni-kassel.de</a>&gt; said:</i><br>
<p>
Joachim&gt; <a href="mailto:becka@rz.uni-duesseldorf.de">becka@rz.uni-duesseldorf.de</a> wrote:<br>
<p>
<i> &gt;&gt; This is really much ... What FW revision do you have ? What</i><br>
<i> &gt;&gt; happens when setting backtrack=yes ?</i><br>
<p>
Joachim&gt; Sane is reporting, that the firmware revision is 1.05Well,<br>
Joachim&gt; when I set "force backtrack" within the graphical frontend<br>
Joachim&gt; the problem seem to be fixed in gray scale mode. In color<br>
Joachim&gt; mode the tree colors are vertically shifted against each<br>
Joachim&gt; other.<br>
<p>
<i> &gt;&gt; Ah. Seems to prove my guess that it happens at buffer boundaries.</i><br>
<p>
Joachim&gt; Yes. I think so too...<br>
<p>
Did anyone have the dropped line problem before sane-0.62? In 0.62,<br>
the overlapped SCSI I/O was introduced for Linux which, if the problem<br>
is timing-dependent, could make a difference.<br>
<p>
--david<br>
<p>
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