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<TITLE>sane-devel: Re: backtracking problem</TITLE>
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<META NAME="Author" CONTENT="Henning Meier-Geinitz (hmg-ml@gmx.de)">
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<META NAME="Subject" CONTENT="Re: backtracking problem">
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<H1>Re: backtracking problem</H1>
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<STRONG>From:</STRONG> Henning Meier-Geinitz (<A HREF="mailto:hmg-ml@gmx.de?Subject=Re:%20backtracking%20problem&In-Reply-To=<20000921182146.A23526@hmg1.vortex.swb.de>"><EM>hmg-ml@gmx.de</EM></A>)<BR>
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<STRONG>Date:</STRONG> Thu Sep 21 2000 - 09:21:46 PDT
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<LI><STRONG>Next message:</STRONG> <A HREF="0220.html">Henning Meier-Geinitz: "Re: Problems with Mustek 1200 SP, mode color. WITH debug.log"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0218.html">Jochen Eisinger: "Re: authorization support (TODO list)"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0205.html">Ivo: "backtracking problem"</A>
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Hi,
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<BR>
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<P>On Thu, Sep 21, 2000 at 11:51:41AM +0200, Ivo wrote:
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<BR>
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<EM>> Well, now that you mention it, at low resolutions and small widths,
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</EM><BR>
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<EM>> backtracking does not seem to occur. But when I increase the scan width with
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</EM><BR>
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<EM>> the same resolution, it will happen. If I up the resolution with the same small
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</EM><BR>
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<EM>> width, backtracking also occurs; and scanning is very slow, but that could be
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</EM><BR>
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<EM>> normal, i.e. even so with the Windows driver (haven't tried).
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</EM><BR>
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<P>The behaviour is the same with windows but backtracking doesn't happen so
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<BR>
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often.
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<BR>
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<BR>
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<EM>> > > and as you can see in the debug output, buffersize is increased to 1024
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</EM><BR>
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<EM>> > > kb by the mustek backend.
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</EM><BR>
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<EM>> > I don't think this will help with ScanExpress/ScanMagic scanners. They like
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</EM><BR>
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<EM>> > their standard 64 K blocksize.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> But it won't have a negative effect either?
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</EM><BR>
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<P>Probably it won't. However, with The ScanExpress/ScanMagic 1.x scanners a buffersize
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<BR>
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<EM>>64 k may lead to a total freeeze of the scanner.
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</EM><BR>
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<P>Bye,
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<BR>
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Henning
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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:%20backtracking%20problem&In-Reply-To=<20000921182146.A23526@hmg1.vortex.swb.de>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0220.html">Henning Meier-Geinitz: "Re: Problems with Mustek 1200 SP, mode color. WITH debug.log"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0218.html">Jochen Eisinger: "Re: authorization support (TODO list)"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0205.html">Ivo: "backtracking problem"</A>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Thu Sep 21 2000 - 09:42:14 PDT</EM>
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