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<!-- name="Dr. Andreas Bolsch" -->
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<!-- subject="Re: Mustek Paragon 1200 III SP" -->
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<title>sane-devel: Re: Mustek Paragon 1200 III SP</title>
<h1>Re: Mustek Paragon 1200 III SP</h1>
<b>Dr. Andreas Bolsch</b> (<a href="mailto:a.bolsch@ic.ac.uk"><i>a.bolsch@ic.ac.uk</i></a>)<br>
<i>Tue, 05 May 1998 22:17:13 +0200</i>
<p>
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<li> <b>Next message:</b> <a href="0048.html">Randall Hopper: "Microtek E6 - mode_sense_1 problem"</a>
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<li> <b>Maybe in reply to:</b> <a href="0045.html">Timothy Kelm: "Mustek Paragon 1200 III SP"</a>
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Hm, what's the exact response to 'Inquiry'. And what do you mean<br>
by 'limited manner'? <br>
I'm working on a backend for the ScanExpress models (based on the<br>
specs Jan Krueger got). Currently gray and lineart is ok, color<br>
more or less (except line distance correction). <br>
<p>
That's what I know at the moment:<br>
<p>
All 16/32 Bit values in big endian!<br>
<p>
Read/write calibration data can be completely omitted.<br>
<p>
Set window:<br>
Resolution in dpi, below 60dpi don't work. <br>
<p>
Upper left coord. and window size in 1/1200 in for 12??? models,<br>
in 1/600 in for 6??? models.<br>
<p>
Threshold: Ignored<br>
<p>
Image comp: Ignored <br>
<p>
Bits p. pixel: only 1 (=&gt;lineart), 8 (=&gt;gray), 24 (=&gt;color),<br>
there is no halftone mode <br>
<p>
Send data:<br>
Gamma: cmd[2]=0x03<br>
cmd[6]=0x00 =&gt; gray, 4096 Bytes, cmd[7]=0x10, cmd[8]=0x00<br>
cmd[6]=0x01 =&gt; red, 4096 Bytes, cmd[7]=0x10, cmd[8]=0x00<br>
cmd[6]=0x02 =&gt; green, 4096 Bytes, cmd[7]=0x10, cmd[8]=0x00<br>
cmd[6]=0x03 =&gt; blue, 4096 Bytes, cmd[7]=0x10, cmd[8]=0x00<br>
cmd[6]=0x04 =&gt; threshold (lineart), cmd[7]=0x00,<br>
cmd[8]: bright -&gt; 00 ... 80 ... FF &lt;- dark<br>
no further data!<br>
<p>
Read Data:<br>
cmd[6] seems to be don't care, despite the strange code in<br>
the sample driver.<br>
<p>
And: If supplied SCSI card is used, disable USLEEP code (in<br>
g_NCR5380.c). The scanner silently overwrites its buffer (128kB)<br>
if data isn't requested fast enough!!! So one gets a corrupted<br>
image (some horizontal stripes missing or appearing several<br>
times, shifted horizontally etc.) Grrrrrrrrrrrrrrrrrrrrrr!<br>
<br>
I haven't figured out yet how the colors are interleaved and <br>
line distance has to be interpreted.<br>
<p>
<pre>
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</pre>
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<p>
<ul>
<!-- next="start" -->
<li> <b>Next message:</b> <a href="0048.html">Randall Hopper: "Microtek E6 - mode_sense_1 problem"</a>
<li> <b>Previous message:</b> <a href="0046.html">Guido Hennecke: "MFS 12000SP"</a>
<li> <b>Maybe in reply to:</b> <a href="0045.html">Timothy Kelm: "Mustek Paragon 1200 III SP"</a>
<!-- nextthread="start" -->
<!-- reply="end" -->
</ul>