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<title>sane-devel: Re: More on Mustek 8000SP adventures...</title>
<h1>Re: More on Mustek 8000SP adventures...</h1>
<a href="mailto:becka@sunserver1.rz.uni-duesseldorf.de"><i>becka@sunserver1.rz.uni-duesseldorf.de</i></a><br>
<i>Sun, 20 Jul 1997 18:22:23 +0200 (MET DST)</i>
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Hi !<br>
<p>
<i>&gt; Edited the ncr53c8xx.c with the guideline "to fix errors, eliminate the</i><br>
<i>&gt; error checking!" : </i><br>
<p>
<i>&gt; 1. I was getting "extraneous data discarded" error, so I just commented</i><br>
<i>&gt; out the error checking somewhere near the line 4509. The entire block</i><br>
<i>&gt; beginning "if (cp-&gt;xerr_status != XE_OK)". I don't have a clear idea of</i><br>
<i>&gt; what this does, I imagine it's necessary for something... </i><br>
<p>
This sounds like you have configured with the LD-command enabled. I seems to <br>
me many of the SP series scanners do not like it. Try to configure with<br>
./configure (without the -disable-ld-distance fix).<br>
<p>
<i>&gt; 2. I was getting another error "ncr dead?". For this, I changed line 5323</i><br>
<i>&gt; from "if (np-&gt;latetime&gt;10)" to "if(np-&gt;latetime&gt;100". Once again I'm not</i><br>
<i>&gt; sure what this did. I was guessing that 10 was in seconds, but it seems</i><br>
<i>&gt; like after the change to 100 it completes scans that take way more than</i><br>
<i>&gt; 100 seconds. This 100 sends was picked completely out of the blue, but it</i><br>
<i>&gt; seems to improve things...</i><br>
This is in the README ... You need to increase SCSI timeout, as thze scanner<br>
will not disconnect for long times.<br>
<p>
<i>&gt; Now if only comebody could help me fix this image quality problem...</i><br>
<p>
<i>&gt; Any comments would be highly apreciated. If this doesn't work ( SANE, that</i><br>
<i>&gt; is ) I will officially declare Mustek Paragon 800SP ( == 8000SP ) a total</i><br>
<i>&gt; piece of crap that only works on Windows 95 and only with their card.</i><br>
<p>
You seem to have problems with the LD correction. Please try all possible <br>
combinations of LD-options (./configure with/whithout --disable-ld-fix<br>
and tweak the source to use/not to use the alternate correction).<br>
It is important that you power off the scanner between tries. The LD command<br>
makes some scanners "go mad" which will cause weird effects until a power-cycle<br>
is applied.<br>
<p>
<i>&gt;From what I have seen on this list, we have gotten all MUSTEK scanners to </i><br>
work with decent quality after some experimentation.<br>
<p>
CU,ANdy<br>
<p>
<pre>
--
Andreas Beck | Email : &lt;<a href="mailto:becka@sunserver1.rz.uni-duesseldorf.de">becka@sunserver1.rz.uni-duesseldorf.de</a>&gt;
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<li> <b>Next message:</b> <a href="0104.html">becka@sunserver1.rz.uni-duesseldorf.de: "Re: different x and y scan resolution (mustek) ?"</a>
<li> <b>Previous message:</b> <a href="0102.html">Gregory Trubetskoy: "More on Mustek 8000SP adventures..."</a>
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<li> <b>Next in thread:</b> <a href="0108.html">Gregory Trubetskoy: "Re: More on Mustek 8000SP adventures..."</a>
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