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<title>sane-devel: Re: Highscreen PerfectScan</title>
<h1>Re: Highscreen PerfectScan</h1>
<b>borm</b> (<a href="mailto:borm@xs4all.nl"><i>borm@xs4all.nl</i></a>)<br>
<i>Fri, 12 Dec 1997 02:41:03 +0000 (GMT)</i>
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On Fri 12 Dec, Martin Kroeker wrote:<br>
<i>&gt; I bought a "Highscreen PerfectScan" last weekend, and it is indeed recognized</i><br>
<i>&gt; as a Microtek E6 and seems to work fine with SANE-0.68. (With an</i><br>
<i>&gt; Adaptec-2940 that is, i haven't bothered to try the card that came with it).</i><br>
<i>&gt; I am a bit uneasy about termination, as the minimal documentation in the box</i><br>
<i>&gt; simply mentioned that it "might be necessary if there are other devices on </i><br>
<i>&gt; the bus". This beast has two female connectors besides the centronics-type</i><br>
<i>&gt; scsi port, one of which *might* be scsi (but i have never seen terminators</i><br>
<i>&gt; with a "normal" 25-pin sub-D pinout). I guess the other is used to connect</i><br>
<i>&gt; the additional hardware for scanning 35mm slides or some such - can somebody</i><br>
<i>&gt; confirm this (in private email, i guess it's a bit off-topic for this</i><br>
<i>&gt; list).</i><br>
<p>
if it's a microtek, then one of the connectors should be a 15 pin<br>
sub-d type connector. This is the option port. The TMA (transparency<br>
media adapter) or ADF (automatic document feeder) can be connected<br>
to this port. The other is a 25 pin sub-d type scsi port. A terminator<br>
that connects to this port should not be hard to find at about 10 us$.<br>
Another option would be to get a suitable scsi cable, and attach the<br>
scanner through the 25 pin sub-d connector. You can then use a normal<br>
(centronics) terminator.<br>
<p>
The "older" Microtek scanners can only handle data transfers at a<br>
maximum speed of 5 megabytes per second. On *some* 2940 (./W/UW)<br>
implementations in combination with fast perhipherals such as<br>
harddiscs, this renders the scanner incommunicado. This may lead<br>
to lock-ups and potential data loss. *some* 2940 implementations<br>
can be configured to use a lower speed, but why use a fast SCSI<br>
card (and fast scsi discs) if you are going to cripple it. If you<br>
have a spare slot in your machine, and the card that came with<br>
your scanner is supported, I would recommend using it. Especially<br>
if you ever run into problems that simple termination doesn't cure.<br>
<p>
hope this answers the questions you had (and some others as well),<br>
<p>
regards, Theo<br>
<p>
<pre>
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<li> <b>Next message:</b> <a href="0070.html">Mark Andrachek: "Re: Highscreen PerfectScan"</a>
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<li> <b>Next in thread:</b> <a href="0073.html">Warren Early: "Re: Highscreen PerfectScan"</a>
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