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<!-- name="David Mosberger-Tang" -->
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<!-- subject="Re: Mustek Paragon 1200SP and transparancy" -->
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<title>sane-devel: Re: Mustek Paragon 1200SP and transparancy</title>
<h1>Re: Mustek Paragon 1200SP and transparancy</h1>
<b>David Mosberger-Tang</b> (<a href="mailto:David.Mosberger@acm.org"><i>David.Mosberger@acm.org</i></a>)<br>
<i>Sat, 17 Jan 1998 13:40:45 -0800</i>
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<i>&gt;&gt;&gt;&gt;&gt; On Sat, 17 Jan 1998 21:59:48 +0100 (CET), Alexander Schulz &lt;<a href="mailto:Alexander.Schulz@stud.uni-karlsruhe.de">Alexander.Schulz@stud.uni-karlsruhe.de</a>&gt; said:</i><br>
<p>
Alexander&gt; Hello, I recently bought a transparancy-adapter for my<br>
Alexander&gt; Paragon 1200SP. The problem is now, that the scan area<br>
Alexander&gt; of the adapter is not as big as that of the scanner. So<br>
Alexander&gt; the scanner automaticaly reduces its scan area to<br>
Alexander&gt; 203x254mm by moving the "head" towards the middle of the<br>
Alexander&gt; scanner whenever trancparancy is used. It seems the sane<br>
Alexander&gt; backend doesn't know this and tries to scan the whole<br>
Alexander&gt; area, with the well-known noisy results.<br>
<p>
And potential for scanner destruction... ;-(<br>
<p>
Alexander&gt; Is there any way to define the scan area depending on the<br>
Alexander&gt; document type? Or what else can I do?<br>
<p>
In theory, the Mustek backend can already detect the presence of a<br>
transparency adapter (but it doesn't know much else). If you set<br>
environment variable SANE_DEBUG_MUSTEK to a value &gt;=2, you should see<br>
a message of the form:<br>
<p>
[mustek] attach: found Mustek scanner model BLAH (BLAH), 1-pass, TA<br>
<p>
The important thing being the "TA". If you see this, the backend<br>
detected the transparency adapter and dev-&gt;flags will have flag<br>
MUSTEK_FLAG_TA set. With this, it would be easy to adjust the<br>
scanning area.<br>
<p>
Patches for supporting transparancy adapters would be of course very<br>
welcome (I don't have such a beat myself). If you end up playing with<br>
this, let me know and I'll see about getting the Mustek SCSI command<br>
docs to you.<br>
<p>
--david<br>
<p>
<pre>
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<li> <b>Next message:</b> <a href="0064.html">Alexander Schulz: "Re: Mustek Paragon 1200SP and transparancy"</a>
<li> <b>Previous message:</b> <a href="0062.html">Alexander Schulz: "Mustek Paragon 1200SP and transparancy"</a>
<li> <b>In reply to:</b> <a href="0062.html">Alexander Schulz: "Mustek Paragon 1200SP and transparancy"</a>
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<li> <b>Next in thread:</b> <a href="0065.html">becka@rz.uni-duesseldorf.de: "Re: Mustek Paragon 1200SP and transparancy"</a>
<li> <b>Next in thread:</b> <a href="0064.html">Alexander Schulz: "Re: Mustek Paragon 1200SP and transparancy"</a>
<li> <b>Reply:</b> <a href="0065.html">becka@rz.uni-duesseldorf.de: "Re: Mustek Paragon 1200SP and transparancy"</a>
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