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<TITLE>sane-devel: Re: Epson scanner support</TITLE>
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<META NAME="Author" CONTENT="John Vickers (jvickers@dial.pipex.com)">
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<META NAME="Subject" CONTENT="Re: Epson scanner support">
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<H1>Re: Epson scanner support</H1>
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<!-- email="jvickers@dial.pipex.com" -->
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<!-- subject="Re: Epson scanner support" -->
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<STRONG>From:</STRONG> John Vickers (<A HREF="mailto:jvickers@dial.pipex.com?Subject=Re:%20Epson%20scanner%20support&In-Reply-To=<38A9A84A.DD10C2F3@dial.pipex.com>"><EM>jvickers@dial.pipex.com</EM></A>)<BR>
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<STRONG>Date:</STRONG> Tue Feb 15 2000 - 11:26:02 PST
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<P>
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<LI><STRONG>Next message:</STRONG> <A HREF="0161.html">Karl Heinz Kremer: "Re: Epson scanner support"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0159.html">Pamela Akazawa: "Re: Epson scanner support"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0154.html">Johan Bengtsson: "Epson scanner support"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0161.html">Karl Heinz Kremer: "Re: Epson scanner support"</A>
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<HR NOSHADE><P>
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<P>
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Johan Bengtsson wrote:
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<BR>
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<EM>>
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</EM><BR>
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<EM>> Hi,
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> The list of supported Epson scanners at the SANE homepage doesn't seem to be up
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</EM><BR>
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<EM>> to date. It think it only lists GT-5500 and GT-7000, but I've seen people
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</EM><BR>
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<EM>> mention on the list that other Epson scanners work as well, like the 1200
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</EM><BR>
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<EM>> Perfection...
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</EM><BR>
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<P>The list in the snapshots, or in CVS, is more up to date.
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<BR>
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I believe the GT9600 has also been reported as working.
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<BR>
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<P>The Epson driver seems to be to have a few problems, but
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<BR>
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mostly it works pretty well. Avoid the driver self-test (scanimage -T) !
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<BR>
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<P><P>The web page, and the CVS documentation should make the point that almost
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<BR>
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any Epson flatbed scanner is supported. I believe there is also limited
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<BR>
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support
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<BR>
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for film scanners.
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<BR>
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<P>The basic functionality of nearly all existing Epson scanners is
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<BR>
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supported,
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<BR>
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and the basic functionality of any new models is also likely to be
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<BR>
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supported
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<BR>
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by existing code. More-or-less complete functionality is supported for
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<BR>
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most recent flatbed models.
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<BR>
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<P><P>Epson scanner support isn't on a per-scanner basis: epson scanners
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<BR>
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communicate using a protocol which Epson call "Esc-I".
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<BR>
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<P>There are several "levels" of this protocol. The Epson driver
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<BR>
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asks the (SCSI, USB, or parallel) scanner what command level it supports,
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<BR>
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and uses this information, rather than the model of the scanner,
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<BR>
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to determine what commands are available within the protocol.
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<BR>
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<P>So if you come along with an Epson scanner which supports command
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<BR>
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level "B7", for example, it should be fully supported *even* if no-one
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<BR>
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has ever tried using this scanner with Sane before.
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<BR>
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<P>If a scanner reports a command level which is unknown to the driver, say
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<BR>
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"B52",
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<BR>
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the driver will fall back to one of the basic command "levels" ("B5", I
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<BR>
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think).
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<BR>
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<P><P>This information (with any corrections!) should go into CVS.
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<BR>
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<P><P>John.
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<BR>
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<P><PRE>
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--
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Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20Epson%20scanner%20support&In-Reply-To=<38A9A84A.DD10C2F3@dial.pipex.com>">majordomo@mostang.com</A>
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</PRE>
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<!-- next="start" -->
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<LI><STRONG>Next message:</STRONG> <A HREF="0161.html">Karl Heinz Kremer: "Re: Epson scanner support"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0159.html">Pamela Akazawa: "Re: Epson scanner support"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0154.html">Johan Bengtsson: "Epson scanner support"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0161.html">Karl Heinz Kremer: "Re: Epson scanner support"</A>
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<EM>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Tue Feb 15 2000 - 11:20:54 PST</EM>
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