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<!-- received="Mon Oct 27 05:28:15 1997 PST" -->
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<!-- sent="Mon, 27 Oct 1997 08:28:03 -0500" -->
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<!-- name="Christoph Doerbeck" -->
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<!-- email="doerbeck@dma.isg.mot.com" -->
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<!-- subject="Re: mustek owners: check your scsi cabling!" -->
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<!-- id="199710271328.IAA20659@prospero.dma.isg.mot.com" -->
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<!-- inreplyto="mustek owners: check your scsi cabling!" -->
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<title>sane-devel: Re: mustek owners: check your scsi cabling!</title>
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<h1>Re: mustek owners: check your scsi cabling!</h1>
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<b>Christoph Doerbeck</b> (<a href="mailto:doerbeck@dma.isg.mot.com"><i>doerbeck@dma.isg.mot.com</i></a>)<br>
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<i>Mon, 27 Oct 1997 08:28:03 -0500</i>
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<p>
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<ul>
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<li> <b>Messages sorted by:</b> <a href="date.html#141">[ date ]</a><a href="index.html#141">[ thread ]</a><a href="subject.html#141">[ subject ]</a><a href="author.html#141">[ author ]</a>
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<!-- next="start" -->
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<li> <b>Next message:</b> <a href="0142.html">Klaus Weglehner: "Scsi-Cabling"</a>
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<li> <b>Previous message:</b> <a href="0140.html">Eric Ludlam: "Re[2]: Dark scans with HP ScanJet 3c"</a>
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<li> <b>Maybe in reply to:</b> <a href="0137.html">David Mosberger-Tang: "mustek owners: check your scsi cabling!"</a>
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<!-- nextthread="start" -->
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<li> <b>Next in thread:</b> <a href="0148.html">becka@rz.uni-duesseldorf.de: "Re: mustek owners: check your scsi cabling!"</a>
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<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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<!-- reply="end" -->
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</ul>
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<!-- body="start" -->
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<i>> OK, I think I found one reason I had all kinds of weird problems with</i><br>
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<i>> my Mustek scanner since my move: the problem was due to incorrect SCSI</i><br>
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<i>> termination. After terminating the 25-pin connector on the Mustek</i><br>
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<i>> scanner (Paragon 600 II SP, in my case), I no longer see any</i><br>
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<i>> horizontal shifts.</i><br>
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<i>> </i><br>
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<i>> If you see a similar problem, you might want to look into your scsi</i><br>
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<i>> cabling. I'm by no means a scsi termination expert, but I think the</i><br>
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<i>> scsi-howto has a pretty good section on termination issues.</i><br>
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<i>> </i><br>
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<i>> If scsi termination turns out to fix your problem, please let me know.</i><br>
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<i>> </i><br>
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<p>
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I have never seen the "horizontal shift" bug. Although, I never unpacked <br>
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the included SCSI card. The scanner is attached to a AHA1540 and was <br>
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properly terminated the day I set it up (providing my own terminator).<br>
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<p>
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I did find it awful funny that the Scanner was sold without a terminator.<br>
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<p>
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Here are the bugs I've seen:<br>
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<p>
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1) First scan yeilds a out.pnm that xv complains about<br>
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being "truncated". Rescanning the image will work then.<br>
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<p>
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2) No way of closing the xscanimage preview window<br>
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<p>
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3) My new Mustek 600 II CD went past length of bed (made that funky<br>
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noise as described in the man pages) when I made a color scan with<br>
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a resolution of 300 dpi.<br>
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<p>
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4) Color scan resolution set to 75, first scan comes out at <br>
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incorrect reolution. Re-scanning usually resets (?) scanner and<br>
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produces a correct out.pnm at 75 dpi. Often, the incorrect<br>
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output will have multiple small copies of the intended image.<br>
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<br>
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<p>
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#1 and #4 may be (probably are) related... I'm still a bit confused on<br>
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how to provide meaningful "DEBUG_MUSTEK" output. Perhaps someone could<br>
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whip-out a perl script to run the requested tests??<br>
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<p>
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- Christoph<br>
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<p>
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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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<!-- body="end" -->
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<p>
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<ul>
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<!-- next="start" -->
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<li> <b>Next message:</b> <a href="0142.html">Klaus Weglehner: "Scsi-Cabling"</a>
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<li> <b>Previous message:</b> <a href="0140.html">Eric Ludlam: "Re[2]: Dark scans with HP ScanJet 3c"</a>
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<li> <b>Maybe in reply to:</b> <a href="0137.html">David Mosberger-Tang: "mustek owners: check your scsi cabling!"</a>
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<!-- nextthread="start" -->
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<li> <b>Next in thread:</b> <a href="0148.html">becka@rz.uni-duesseldorf.de: "Re: mustek owners: check your scsi cabling!"</a>
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<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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<!-- reply="end" -->
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</ul>
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