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<TITLE>sane-devel: Re: Patches for improved batch scanning in scanimage</TITLE>
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<H1>Re: Patches for improved batch scanning in scanimage</H1>
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<!-- received="Sat Jun 2 09:09:19 2001" -->
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<STRONG>From:</STRONG> <A HREF="mailto:caskey-lists-sane-devel@technocage.com?Subject=Re:%20Patches%20for%20improved%20batch%20scanning%20in%20scanimage&In-Reply-To=<Pine.LNX.4.10.10106020859340.843-100000@vaio.factory.tci>"><EM>caskey-lists-sane-devel@technocage.com</EM></A><BR>
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<STRONG>Date:</STRONG> Sat Jun 02 2001 - 09:10:24 PDT
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<LI><STRONG>Next message:</STRONG> <A HREF="0025.html">scc: "Re: umax 2200 hi res scan"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0023.html">Henning Meier-Geinitz: "Re: Compiling on OS/2"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0022.html">Henning Meier-Geinitz: "Re: Patches for improved batch scanning in scanimage"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0032.html">Henning Meier-Geinitz: "Re: Patches for improved batch scanning in scanimage"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0032.html">Henning Meier-Geinitz: "Re: Patches for improved batch scanning in scanimage"</A>
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On Jun 2, Henning Meier-Geinitz quoth:
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<BR>
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<P><EM>> On Sat, Jun 02, 2001 at 05:42:58AM -0700, <A HREF="mailto:caskey-lists-sane-devel@technocage.com?Subject=Re:%20Patches%20for%20improved%20batch%20scanning%20in%20scanimage&In-Reply-To=<Pine.LNX.4.10.10106020859340.843-100000@vaio.factory.tci>">caskey-lists-sane-devel@technocage.com</A> wrote:
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</EM><BR>
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<EM>> > Attached are two patches for scanimage and its man page to add in a
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</EM><BR>
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<EM>> > collection of useful command line parameters to ease scanning of documents
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</EM><BR>
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<EM>> > on scanners with ADFs.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> There is a command-line-frontend named "scanadf" that's especially for
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</EM><BR>
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<EM>> ADF scanners. I don't remeber its feature but probably at least some
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</EM><BR>
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<EM>> of your changes are already included. I think it's better to include
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</EM><BR>
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<EM>> your changes (if necessary) to this frontend. However, I will put an
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</EM><BR>
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<EM>> entry into our TODO list about your additions os maybe we include them
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</EM><BR>
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<EM>> in sane-backends 1.0.6.
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</EM><BR>
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<P>As far as the features are concerned, it doesn't add anything that
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<BR>
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scanimage doesn't already do except for automatic script execution. It is
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<BR>
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needed for scanners that don't automatically invoke their document feeders
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<BR>
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when loaded, the HP 6xxx series is not like that.
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<BR>
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<P><EM>> There is a website for scanadf, but I can't get a connection currently:
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</EM><BR>
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<EM>> <A HREF="http://www.martoneconsulting.com/sane-scanadf.html">http://www.martoneconsulting.com/sane-scanadf.html</A>
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</EM><BR>
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<P>According to that page, scanadf suport for HP scanners requires that you
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<BR>
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patch the driver on the backend to use its mechanism of ADF support.
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<BR>
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Implicitly a much more active form of ADF support.
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<BR>
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<P> When invoked without the --scan-from-adf option,
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<BR>
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the scanner will still feed paper in from the feeder, but
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<BR>
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the out-of-paper condition will never be detected and
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<BR>
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scanadf will run forever, repeatedly scanning the
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<BR>
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empty bed when there is no more paper.
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<BR>
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<P>That is the exact problem that my patch addresses. Furthermore, the
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<BR>
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scanadf home page hasn't been updated since August of 1999.
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<BR>
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<P>Please note that my patch doesn't add support for ADFs, it merely rounds
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<BR>
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out the rather lame batch support in scanimage(*) that is already present
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<BR>
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by allowing you to control the numbering of the filenames that come out.
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<BR>
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If you would rather I not place them in scanimage but in another tool
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<BR>
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please say so.
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<BR>
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<P>In the meanwhile, those that wish to access my patches can retrieve them
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<BR>
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from my home page.
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<BR>
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<P><A HREF="http://www.technocage.com/~caskey/sane/batchscan/">http://www.technocage.com/~caskey/sane/batchscan/</A>
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<BR>
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<P>C=)
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<BR>
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<P>(*) - The batch support in scanimage currently just loops until the status
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<BR>
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code changes.
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<BR>
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<P>--------------------------------------------------------------------------
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<BR>
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"Premature optimization is the root of all evil" -Donald Knuth
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<BR>
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--------------------------------------------------------------------------
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<BR>
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Caskey <caskey*technocage.com> /// TechnoCage Inc.
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<BR>
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--------------------------------------------------------------------------
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<BR>
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Heuer's Law: Any feature is a bug unless it can be turned off.
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<BR>
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<P><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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</PRE>
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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>Sat Jun 02 2001 - 09:10:33 PDT</EM>
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