sane-project-website/old-archive/2001-06/0154.html

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<TITLE>sane-devel: Re: HP Scanjet 2200C</TITLE>
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<H1>Re: HP Scanjet 2200C</H1>
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<STRONG>From:</STRONG> Stefan Nilsen (<A HREF="mailto:stefan.nilsen@telia.com?Subject=Re:%20HP%20Scanjet%202200C&In-Reply-To=&lt;01061017341101.03299@wale&gt;"><EM>stefan.nilsen@telia.com</EM></A>)<BR>
<STRONG>Date:</STRONG> Sun Jun 10 2001 - 08:34:11 PDT
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<EM>&gt; &gt; I'm asking because the documentation from National does not describe all
</EM><BR>
<EM>&gt; &gt; the details of the communication part, only what the internal registers
</EM><BR>
<EM>&gt; &gt; in the scanner do, which is great, but unfortenatly not enough for me.
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; The way how to read and write registers was described in a different
</EM><BR>
<EM>&gt; document (I don't remeber its name). &gt;ou should understand it by
</EM><BR>
<EM>&gt; looking at the following source codes:
</EM><BR>
<P>I have looked, but does not find any :-(
<BR>
<P><EM>&gt;
</EM><BR>
<EM>&gt; There is some code for LM9831 based scanners at
</EM><BR>
<EM>&gt; <A HREF="http://www.meier-geinitz.de/sane/download.html">http://www.meier-geinitz.de/sane/download.html</A> (llook for test program
</EM><BR>
<EM>&gt; for BearPaw) and
</EM><BR>
<EM>&gt; <A HREF="http://zeus.instmath.rwth-aachen.de/~heine/sane-lm9831/lm9831.html">http://zeus.instmath.rwth-aachen.de/~heine/sane-lm9831/lm9831.html</A>.
</EM><BR>
<P><P>I have tried, and it works. It turns the light on and moves the head, and I
<BR>
get some register contents.
<BR>
<P><EM>&gt;
</EM><BR>
<EM>&gt; I tried to write a backend for the Mustek BearPaw series but don't
</EM><BR>
<EM>&gt; have enough time. Quite some people also wanted to help and write code
</EM><BR>
<EM>&gt; but currently I don't know of any results.
</EM><BR>
<P>I will use the above code as a base for more investigation now. I have also
<BR>
now found more info about the protocol used when reading/writing to registers.
<BR>
<P>/Stefan
<BR>
<P><PRE>
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