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<title>sane-devel: Re: Volunteer for back end development - excellent info in this msg</title>
<h1>Re: Volunteer for back end development - excellent info in this msg</h1>
<b>Mathew sienko x7439</b> (<a href="mailto:msienko@galaxy.nsc.com"><i>msienko@galaxy.nsc.com</i></a>)<br>
<i>Thu, 9 Dec 1999 11:14:46 -0800 (PST)</i>
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<i>&gt; </i><br>
<i>&gt; &gt; I am one of the designers of the chip that is at the heart of the HP</i><br>
<i>&gt; &gt; 4200c and would like to mention a few things about it here. As mentioned,</i><br>
<i>&gt; &gt; this scanner does not use SCL. Instead, it uses its own, custom,</i><br>
<i>&gt; &gt; protocall defined by the chip it is built around, the LM9830. This is the</i><br>
<i>&gt; &gt; first Merlin chip from National Semiconductor. We used a custom interface</i><br>
<i>&gt; &gt; because SCL would have required more expensive parts. We just released</i><br>
<i>&gt; &gt; the LM9831, and will soon release the LM9832, which all both use an</i><br>
<i>&gt; &gt; interface very similar to the LM9830.</i><br>
<i>&gt; </i><br>
<i>&gt; Are these ASICs by any chance also used by the HP ScanJet 3300C and friends?</i><br>
<i>&gt; </i><br>
<i>&gt; David</i><br>
<p>
The HP 4200 is the only scanner currently available that uses the LM9830. I<br>
don't know what HP's plans are, but there should be some scanners based on<br>
the LM9831 coming out soon from other sellers.<br>
<p>
Matt<br>
<p>
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<li> <b>Next message:</b> <a href="0084.html">Jonathan A. Buzzard: "Re: Umax Parallel"</a>
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<li> <b>Next in thread:</b> <a href="0187.html">Adrian Perez Jorge: "Re: Volunteer for back end development - excellent info in this msg"</a>
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