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<TITLE>sane-devel: Re: please advise: Mustek 12000SP, NCR810 & col</TITLE>
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<META NAME="Author" CONTENT="FJA van Zijp (ferencj@xs4all.nl)">
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<META NAME="Subject" CONTENT="Re: please advise: Mustek 12000SP, NCR810 & color stripes">
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<H1>Re: please advise: Mustek 12000SP, NCR810 & color stripes</H1>
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<STRONG>From:</STRONG> FJA van Zijp (<A HREF="mailto:ferencj@xs4all.nl?Subject=Re:%20please%20advise:%20Mustek%2012000SP,%20NCR810%20&%20color%20stripes&In-Reply-To=<3A6B66E0.15875.B464B5B@localhost>"><EM>ferencj@xs4all.nl</EM></A>)<BR>
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<STRONG>Date:</STRONG> Sun Jan 21 2001 - 13:46:56 PST
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<LI><STRONG>Next message:</STRONG> <A HREF="0236.html">Henning Meier-Geinitz: "Re: please advise: Mustek 12000SP, NCR810 & color stripes"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0234.html">Adam Tauno Williams: "Re: scanning to cd-rom"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0229.html">David Gesswein: "Re: please advise: Mustek 12000SP, NCR810 & color stripes"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0237.html">Hugo.van.der.Kooij@caiw.nl: "Re: please advise: Mustek 12000SP, NCR810 & color stripes"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0236.html">Henning Meier-Geinitz: "Re: please advise: Mustek 12000SP, NCR810 & color stripes"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0237.html">Hugo.van.der.Kooij@caiw.nl: "Re: please advise: Mustek 12000SP, NCR810 & color stripes"</A>
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Hi,
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<BR>
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<P>Well, whaddayaknow. It works. I wrote I connected the Mustek to a
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<BR>
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noname NCR810 card, but actually it was connected to my Asus
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<BR>
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SC200 SCSI card. Ah well, shouldn't matter, thinks me.
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<BR>
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<P>But it turns out it does matter. The scanner now IS connected
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<BR>
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(solely) to the noname NCR810 card, the rest (ZIP and CDROM) is
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<BR>
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on the SC200. No more colored stripes.
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<BR>
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<P>I'm still curious. Anybody ANY idea what was going on?
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<BR>
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<P><EM>> > I've read somewhere (in SANE docs?) that this Mustek should be
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</EM><BR>
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<EM>> > terminated (by me). But my active terminator makes the line
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</EM><BR>
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<EM>> > phenomena a lot worse. What is it with this scanner? Doesn't it
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</EM><BR>
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<EM>> > follow SCSI specs, or has it auto-termination?
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</EM><BR>
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<EM>> I wouldn't trust scanners to follow SCSI specs, specially if they come
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</EM><BR>
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<EM>> as a package with SCSI card etc. My acer caused problems with other
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</EM><BR>
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<EM>> devices on the same chain until I removed from the PCB a bunch of capacitors
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</EM><BR>
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<EM>> they had put on the SCSI signal lines. They either put them on for EMI or
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</EM><BR>
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<EM>> an attempt to sort of terminate but caused too much reflection when you
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</EM><BR>
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<EM>> had other devices on the chain which were using faster data rates.
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</EM><BR>
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<P>I've got an old SONY-cdrom with similar thingies to what you
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<BR>
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describe. I'm quite sure they're for passive termination. If I
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<BR>
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remember clearly, passive termination consists of resistors of a
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<BR>
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certain Ohm, active termination actually keeps a certain voltage on
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<BR>
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the signal lines (with thyristors?.)
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<BR>
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<P>cheers
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<BR>
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<P>Ferenc
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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:%20please%20advise:%20Mustek%2012000SP,%20NCR810%20&%20color%20stripes&In-Reply-To=<3A6B66E0.15875.B464B5B@localhost>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0236.html">Henning Meier-Geinitz: "Re: please advise: Mustek 12000SP, NCR810 & color stripes"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0234.html">Adam Tauno Williams: "Re: scanning to cd-rom"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0229.html">David Gesswein: "Re: please advise: Mustek 12000SP, NCR810 & color stripes"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0237.html">Hugo.van.der.Kooij@caiw.nl: "Re: please advise: Mustek 12000SP, NCR810 & color stripes"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0236.html">Henning Meier-Geinitz: "Re: please advise: Mustek 12000SP, NCR810 & color stripes"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0237.html">Hugo.van.der.Kooij@caiw.nl: "Re: please advise: Mustek 12000SP, NCR810 & color stripes"</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>Sun Jan 21 2001 - 13:51:34 PST</EM>
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