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<!-- name="Christoph Doerbeck" -->
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<!-- subject="Re: mustek owners: check your scsi cabling!" -->
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<title>sane-devel: Re: mustek owners: check your scsi cabling!</title>
<h1>Re: mustek owners: check your scsi cabling!</h1>
<b>Christoph Doerbeck</b> (<a href="mailto:doerbeck@dma.isg.mot.com"><i>doerbeck@dma.isg.mot.com</i></a>)<br>
<i>Mon, 27 Oct 1997 08:28:03 -0500</i>
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<li> <b>Next message:</b> <a href="0142.html">Klaus Weglehner: "Scsi-Cabling"</a>
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<i>&gt; OK, I think I found one reason I had all kinds of weird problems with</i><br>
<i>&gt; my Mustek scanner since my move: the problem was due to incorrect SCSI</i><br>
<i>&gt; termination. After terminating the 25-pin connector on the Mustek</i><br>
<i>&gt; scanner (Paragon 600 II SP, in my case), I no longer see any</i><br>
<i>&gt; horizontal shifts.</i><br>
<i>&gt; </i><br>
<i>&gt; If you see a similar problem, you might want to look into your scsi</i><br>
<i>&gt; cabling. I'm by no means a scsi termination expert, but I think the</i><br>
<i>&gt; scsi-howto has a pretty good section on termination issues.</i><br>
<i>&gt; </i><br>
<i>&gt; If scsi termination turns out to fix your problem, please let me know.</i><br>
<i>&gt; </i><br>
<p>
I have never seen the "horizontal shift" bug. Although, I never unpacked <br>
the included SCSI card. The scanner is attached to a AHA1540 and was <br>
properly terminated the day I set it up (providing my own terminator).<br>
<p>
I did find it awful funny that the Scanner was sold without a terminator.<br>
<p>
Here are the bugs I've seen:<br>
<p>
1) First scan yeilds a out.pnm that xv complains about<br>
being "truncated". Rescanning the image will work then.<br>
<p>
2) No way of closing the xscanimage preview window<br>
<p>
3) My new Mustek 600 II CD went past length of bed (made that funky<br>
noise as described in the man pages) when I made a color scan with<br>
a resolution of 300 dpi.<br>
<p>
4) Color scan resolution set to 75, first scan comes out at <br>
incorrect reolution. Re-scanning usually resets (?) scanner and<br>
produces a correct out.pnm at 75 dpi. Often, the incorrect<br>
output will have multiple small copies of the intended image.<br>
<br>
<p>
#1 and #4 may be (probably are) related... I'm still a bit confused on<br>
how to provide meaningful "DEBUG_MUSTEK" output. Perhaps someone could<br>
whip-out a perl script to run the requested tests??<br>
<p>
- Christoph<br>
<p>
<p>
<p>
<pre>
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<ul>
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<li> <b>Next message:</b> <a href="0142.html">Klaus Weglehner: "Scsi-Cabling"</a>
<li> <b>Previous message:</b> <a href="0140.html">Eric Ludlam: "Re[2]: Dark scans with HP ScanJet 3c"</a>
<li> <b>Maybe in reply to:</b> <a href="0137.html">David Mosberger-Tang: "mustek owners: check your scsi cabling!"</a>
<!-- nextthread="start" -->
<li> <b>Next in thread:</b> <a href="0148.html">becka@rz.uni-duesseldorf.de: "Re: mustek owners: check your scsi cabling!"</a>
<li> <b>Reply:</b> <a href="0148.html">becka@rz.uni-duesseldorf.de: "Re: mustek owners: check your scsi cabling!"</a>
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