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<!-- name="Klaus Espenlaub" -->
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<!-- subject="Re: color trouble with Microtek ScanMaker E6" -->
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<title>sane-devel: Re: color trouble with Microtek ScanMaker E6</title>
<h1>Re: color trouble with Microtek ScanMaker E6</h1>
<b>Klaus Espenlaub</b> (<a href="mailto:espenlaub@informatik.uni-ulm.de"><i>espenlaub@informatik.uni-ulm.de</i></a>)<br>
<i>Tue, 09 Nov 1999 09:56:35 +0100</i>
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Matto Marjanovic wrote:<br>
<i>&gt; This is really a tough one. There seem to be a few undocumented SCSI</i><br>
<i>&gt; commands that the TWAIN driver sends to the E6, and they seem to have</i><br>
<i>&gt; something to do with calibrating the CCD. I discovered this once a</i><br>
<i>&gt; long time ago when I played around with a very limited tool to</i><br>
<i>&gt; monitor Windows scsi transactions.</i><br>
<p>
Hmmm... something just came to my mind. How about using the ASPI32 support<br>
in wine to run the TWAIN module under Linux, with access to the ASPI emulation<br>
source in the wine code. My current work machine isn<73>t suited for this<br>
(dual boot Linux/WinNT), but I have access to a fairly recent wine<br>
installation on some other machine with a SCSI controller. I<>ll check if<br>
the scanner software runs well enough under wine. May take a while for me<br>
to get around trying this setup.<br>
<p>
<i>&gt; My best guess is that your scanner needs to see these commands.</i><br>
<i>&gt; Unfortunately, the tool was so limited that I couldn't get enough</i><br>
<i>&gt; information to tell what was going on. And, counting you, only about</i><br>
<i>&gt; three people have ever had this problem; every other E6 scanner seems</i><br>
<i>&gt; to work just fine without these commands. (Including models with the</i><br>
<i>&gt; same firmware rev.)</i><br>
<p>
Can you ask the other two poor fellows if they also have the Macintosh<br>
version of the E6? Possibly they have a different firmware than the<br>
regular PC version.<br>
<p>
<i>&gt; The backend is really in pretty good shape; I've kind of slipped in</i><br>
<i>&gt; adding stuff to it because the last few things to add involve</i><br>
<i>&gt; tracking down these weird commands by toying with Windows --- what a</i><br>
<i>&gt; drag.</i><br>
<p>
I can agree with that - the stability of the backend is way beyond what<br>
Mac or PC users usually get. The Mac crashed after a few test scans and<br>
also takes about the same time for a preview scan as sane-microtek takes<br>
for a full 600dpi scan.<br>
<p>
<i>&gt; Does anyone know of anything I can download to spy on what the Windows</i><br>
<i>&gt; driver is sending back and forth? Last time I tried looking (about a</i><br>
<i>&gt; year ago), it was a frustrating experience. If I had the tool, reverse</i><br>
<i>&gt; engineering the spec would probably be a snap.</i><br>
<p>
I<EFBFBD>ve found a message on the sane-devel list from some Mustek user that<br>
had a Win32 ASPI snoop tool, but needed a Win16 one. I asked him for an<br>
up-to-date URL, because the one he quoted didn<64>t work. We<57>ll see if that<br>
is usable. At least it sounds like. <br>
<p>
Last minute update: I found the web page:<br>
<a href="http://www.Student.Uni-Augsburg.DE/~scorpion/aspi32snoop.html">http://www.Student.Uni-Augsburg.DE/~scorpion/aspi32snoop.html</a><br>
Drawback: currently the ZIP file is not accessible. I notified the guy,<br>
and while I did this, I asked him for the sources...<br>
<p>
<p>
Klaus<br>
<p>
<pre>
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</pre>
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<ul>
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<li> <b>Next message:</b> <a href="0067.html">Frank Tscheuschner: "Re: Mustek doesn't work"</a>
<li> <b>Previous message:</b> <a href="0065.html">Matto Marjanovic: "Re: color trouble with Microtek ScanMaker E6"</a>
<li> <b>Maybe in reply to:</b> <a href="0052.html">Klaus Espenlaub: "color trouble with Microtek ScanMaker E6"</a>
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</ul>