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<H1>Re: Ricoh IS330DC</H1>
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<STRONG>From:</STRONG> Henning Meier-Geinitz (<A HREF="mailto:henning@meier-geinitz.de?Subject=Re:%20Ricoh%20IS330DC&In-Reply-To=&lt;20010516193154.C11491@vortex.swb.de&gt;"><EM>henning@meier-geinitz.de</EM></A>)<BR>
<STRONG>Date:</STRONG> Wed May 16 2001 - 10:31:54 PDT
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Hi,
<BR>
<P>On Wed, May 16, 2001 at 09:10:41AM -0500, Andy Angrick wrote:
<BR>
<EM>&gt; I'm in desperate need of a SANE driver for a Ricoh IS330DC scanner. Its a
</EM><BR>
<EM>&gt; high-end scanner with automatic document feeder and duplex scanning
</EM><BR>
<EM>&gt; capabilities. I guess my first question is if i wanted to start developing a
</EM><BR>
<EM>&gt; driver... where would i start? I've got all the scsi commands from Ricoh.
</EM><BR>
<P>Write a small (stand-alone) program that just does the basic scanning.
<BR>
It's easier to debug than a SANE library. When scanning works in
<BR>
principle, use the functions of the program to create a backend.
<BR>
For the backend the file doc/backend-writing.txt may be helpful. Use an
<BR>
existing (similar) backend as template.
<BR>
<P>If the scanner uses high level command (e.g. set_window, scan) and the
<BR>
documentation is complete It should be possible to write a driver in
<BR>
4-6 weeks. If it's more lowlevel (e.g. move_one_line,
<BR>
read_scanned_line e.g.) it can take a lot of time.
<BR>
<P>One problem may be the advanced possibilities of such scanners: SANE
<BR>
can only use raw image data so if the scanner has it's own data format
<BR>
(e.g. jpeg) that has to be translated before sending to the application.
<BR>
So you also need a description of the data format used by the scanner.
<BR>
Also duplex scanning is not supported directly by SANE.
<BR>
<P>Maybe you want to have a look at the bh backend which also deals with
<BR>
high-end scanners.
<BR>
<P>If the documentation of the scanner isn't complete it will be more
<BR>
complicated as then the Windows driver must be used to listen to the
<BR>
SCSI command flow.
<BR>
<P><EM>&gt; I'm fairly proficient with c, but not an expert. I can probably fumble my
</EM><BR>
<EM>&gt; way through it. The second question is are they any people on the list that
</EM><BR>
<EM>&gt; would be willing to develop the driver for me? We would pay that person to
</EM><BR>
<EM>&gt; develop the driver and there might even be a free scanner (those scanners
</EM><BR>
<EM>&gt; aren't cheap) in the deal. Once developed, it would make it available to
</EM><BR>
<EM>&gt; everyone.
</EM><BR>
<P>I would like to help. In my main job I'm chemical engineer at the
<BR>
Darmstadt University of Technology but also i'm doing freelance jobs
<BR>
sometimes (programming and consulting concerning Unix-related things).
<BR>
Ah, and I'm maintaining the Mustek backend and doing this and that in
<BR>
the SANE project :-)
<BR>
<P>Bye,
<BR>
&nbsp;&nbsp;Henning
<BR>
<P><PRE>
--
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