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<TITLE>sane-devel: Re: Writing Fujitsu M3091 backend</TITLE>
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<META NAME="Author" CONTENT="Nick Lamb (njl98r@ecs.soton.ac.uk)">
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<META NAME="Subject" CONTENT="Re: Writing Fujitsu M3091 backend">
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<H1>Re: Writing Fujitsu M3091 backend</H1>
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<!-- received="Thu Mar 1 05:59:38 2001" -->
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<STRONG>From:</STRONG> Nick Lamb (<A HREF="mailto:njl98r@ecs.soton.ac.uk?Subject=Re:%20Writing%20Fujitsu%20M3091%20backend&In-Reply-To=<20010301141441.B2704@ecs.soton.ac.uk>"><EM>njl98r@ecs.soton.ac.uk</EM></A>)<BR>
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<STRONG>Date:</STRONG> Thu Mar 01 2001 - 06:14:41 PST
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<LI><STRONG>Previous message:</STRONG> <A HREF="0004.html">Mick Barry: "Re: Writing Fujitsu M3091 backend"</A>
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On Thu, Mar 01, 2001 at 10:34:13AM +0100, mh wrote:
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<BR>
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<EM>> There is no "well known option" or a flag in SANE_Parameters which tells the
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</EM><BR>
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<EM>> frontend that it should continue with image acquisition. Therefore you
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</EM><BR>
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<P>There is a return code, SANE_STATUS_NO_DOCS which indicates that we've
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<BR>
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run out of paper, or some analagous problem has occurred, this is what
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<BR>
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you want I think.
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<BR>
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<P><EM>> have the following possibilities:
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</EM><BR>
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<EM>> -let the user hit the scan button for each single scan operation
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</EM><BR>
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<EM>> -let the user set the number of scans, and then try to acquire this number of
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</EM><BR>
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<EM>> scans.
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</EM><BR>
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<P> -scan images until the backend returns SANE_STATUS_NO_DOCS indicating
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<BR>
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that it doesn't have anything left worth scanning.
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<BR>
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<P>This is what all the existing software which supports ADF does AFAIK.
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<BR>
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Some future version of the standard should spell this out in the advice
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for implementers.
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<BR>
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<P>Nick.
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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:%20Writing%20Fujitsu%20M3091%20backend&In-Reply-To=<20010301141441.B2704@ecs.soton.ac.uk>">majordomo@mostang.com</A>
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</PRE>
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