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<TITLE>sane-devel: Re: Parallel Scanners (UMAX Astra 1220P)</TITLE>
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<META NAME="Author" CONTENT="Jerome Hettich (sane@hettich.demon.co.uk)">
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<META NAME="Subject" CONTENT="Re: Parallel Scanners (UMAX Astra 1220P)">
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<H1>Re: Parallel Scanners (UMAX Astra 1220P)</H1>
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<!-- received="Fri Jun 9 02:24:18 2000" -->
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<!-- sent="Fri, 9 Jun 2000 10:23:46 +0100" -->
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<!-- name="Jerome Hettich" -->
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<!-- subject="Re: Parallel Scanners (UMAX Astra 1220P)" -->
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<STRONG>From:</STRONG> Jerome Hettich (<A HREF="mailto:sane@hettich.demon.co.uk?Subject=Re:%20Parallel%20Scanners%20(UMAX%20Astra%201220P)&In-Reply-To=<003e01bfd1f4$7caf6c80$0200000a@jerome>"><EM>sane@hettich.demon.co.uk</EM></A>)<BR>
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<STRONG>Date:</STRONG> Fri Jun 09 2000 - 02:23:46 PDT
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<LI><STRONG>Next message:</STRONG> <A HREF="0077.html">abel deuring: "Re: Problems with sane-scsi"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0075.html">Kurt Savegnago: "Re: sane install"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0064.html">Michael Franz: "Re: Parallel Scanners (UMAX Astra 1220P)"</A>
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I have seen somewhere (I don't remember where now) that the umax 1220P uses
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<BR>
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the same command protocol as the 1220U scanner (the USB version).
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<BR>
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Unfortunately neither are supported by the SANE umax backend either since
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<BR>
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UMAX will only release their SCSI command protocol.
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<BR>
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<P>However there is a driver available for the 1220U scanner, on Linux with a
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<BR>
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patched version of the 2.3.99pre3 kernel, written by one of the Linux USB
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<BR>
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development groups (Paul Mackerras). If you were considering attempting to
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<BR>
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write a backend for the 1220P then perhaps this may be of help. I may
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<BR>
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however be misinformed and this may be of no use whatsoever. It should be
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<BR>
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available from:
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<BR>
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<A HREF="ftp://linuxcare.com.au/pub/paulus/umax1220u.tar.gz">ftp://linuxcare.com.au/pub/paulus/umax1220u.tar.gz</A>
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<BR>
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<P>Perhaps Oliver Rauch would know more about this as I believe he is
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<BR>
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responsible for the umax backend. He has told me that there are no plans to
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<BR>
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support the USB and parallel scanners as the protocol is not released.
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<BR>
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However I was thinking about attempting to set about trying to get my 1220U
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<BR>
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scanner supported in SANE this summer. Since there is a driver available but
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<BR>
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no documentation could anyone comment on how hard they think this might be
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<BR>
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and perhaps give me a rough guide as to what I would need to do?
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<BR>
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<P>Jerome
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<BR>
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<P>----- Original Message -----
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<BR>
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From: "Michael Franz" <<A HREF="mailto:mvfranz@hotmail.com?Subject=Re:%20Parallel%20Scanners%20(UMAX%20Astra%201220P)&In-Reply-To=<003e01bfd1f4$7caf6c80$0200000a@jerome>">mvfranz@hotmail.com</A>>
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<BR>
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To: <<A HREF="mailto:sane-devel@mostang.com?Subject=Re:%20Parallel%20Scanners%20(UMAX%20Astra%201220P)&In-Reply-To=<003e01bfd1f4$7caf6c80$0200000a@jerome>">sane-devel@mostang.com</A>>
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<BR>
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Sent: Thursday, June 08, 2000 1:57 PM
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<BR>
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Subject: Re: Parallel Scanners (UMAX Astra 1220P)
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<BR>
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<P><P><EM>>
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</EM><BR>
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<EM>> Assuming that I did have the specifications (which I don't) where would I
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</EM><BR>
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<EM>> start?
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> >From: Doug Alcorn <<A HREF="mailto:doug@lathi.net?Subject=Re:%20Parallel%20Scanners%20(UMAX%20Astra%201220P)&In-Reply-To=<003e01bfd1f4$7caf6c80$0200000a@jerome>">doug@lathi.net</A>>
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</EM><BR>
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<EM>> >Reply-To: <A HREF="mailto:sane-devel@mostang.com?Subject=Re:%20Parallel%20Scanners%20(UMAX%20Astra%201220P)&In-Reply-To=<003e01bfd1f4$7caf6c80$0200000a@jerome>">sane-devel@mostang.com</A>
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</EM><BR>
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<EM>> >To: <A HREF="mailto:sane-devel@mostang.com?Subject=Re:%20Parallel%20Scanners%20(UMAX%20Astra%201220P)&In-Reply-To=<003e01bfd1f4$7caf6c80$0200000a@jerome>">sane-devel@mostang.com</A>
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</EM><BR>
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<EM>> >Subject: Re: Parallel Scanners (UMAX Astra 1220P)
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</EM><BR>
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<EM>> >Date: 07 Jun 2000 10:14:37 -0400
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> >"Michael Franz" <<A HREF="mailto:mvfranz@hotmail.com?Subject=Re:%20Parallel%20Scanners%20(UMAX%20Astra%201220P)&In-Reply-To=<003e01bfd1f4$7caf6c80$0200000a@jerome>">mvfranz@hotmail.com</A>> writes:
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> > > It seems that only the epson and mustek scanners are supported
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</EM><BR>
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<EM>> > > either directly or by treating the scanner as a SCSI device. How do
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</EM><BR>
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<EM>> > > I get started with the UMAX scanners?
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> >There are two pieces to using a scanner in Linux. First, the kernel
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</EM><BR>
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<EM>> >must be able to communicate with the device. This is rarely a
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</EM><BR>
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<EM>> >problem; even with USB scanners. The real problem comes with what
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</EM><BR>
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<EM>> >sane calls the "backend". This is the piece that goes between the
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</EM><BR>
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<EM>> >actual scanning user interface and the kernel itself. The backend
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</EM><BR>
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<EM>> >must know how to control the scanner. This is different than just
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</EM><BR>
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<EM>> >talking to the scanner.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> O.K. How do I do this? I have tried the load module method, but since
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</EM><BR>
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the
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<BR>
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<EM>> UMAX is not supported I don't know if I was on the right path. I tried
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</EM><BR>
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<EM>> parport, ppSCSI, ppa,...
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> >Here's the bad news: UMAX doesn't release the command protocol for
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</EM><BR>
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<EM>> >controlling their parallel or USB scanners. I have the UMAX 2000U
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</EM><BR>
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<EM>> >scanner. The developement kernels (2.3.x) can recognize the scanner,
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</EM><BR>
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<EM>> >but sane has no idea what to say to it.
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> >You have two options. First, write a polite letter to UMAX requesting
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</EM><BR>
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<EM>> >the scanner control information. This is probably a dead end. I have
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</EM><BR>
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<EM>> >been doing this every so often for the last six months. The second is
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</EM><BR>
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<EM>> >to reverse engineer the command language. I don't really know how to
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</EM><BR>
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<EM>> >do this. I guess you would have to tap into the line (either USB or
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</EM><BR>
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<EM>> >parallel cable) and sniff out what commands are sent under what
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</EM><BR>
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<EM>> >situations. I think this would be very usefull (to me at least) but
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</EM><BR>
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<EM>> >very difficult. Someone much smarter than me can comment on this.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> I tried to do this briefly, but the program I was using did seem to give
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</EM><BR>
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me
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<BR>
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<EM>> enough information. It told me that I was sending unsigned longs to the
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</EM><BR>
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<EM>> port, but not the value. The next thing I was going to try was to look at
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</EM><BR>
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<EM>> the actual drivers and see if they left anything in them.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Any one have any tips on this? A good snooping program?
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> >--
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</EM><BR>
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<EM>> >Doug Alcorn | Fire Todd Dickinson, reform the US Patent Office
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</EM><BR>
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<EM>> ><A HREF="mailto:doug@lathi.net?Subject=Re:%20Parallel%20Scanners%20(UMAX%20Astra%201220P)&In-Reply-To=<003e01bfd1f4$7caf6c80$0200000a@jerome>">doug@lathi.net</A> | <A HREF="http://www.andovernews.com/cgi-bin/news_column.pl?533">http://www.andovernews.com/cgi-bin/news_column.pl?533</A>
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</EM><BR>
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<EM>> >www.lathi.net |
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> >--
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</EM><BR>
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<EM>> >Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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</EM><BR>
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<EM>> >To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20Parallel%20Scanners%20(UMAX%20Astra%201220P)&In-Reply-To=<003e01bfd1f4$7caf6c80$0200000a@jerome>">majordomo@mostang.com</A>
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Michael
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</EM><BR>
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<EM>> ________________________________________________________________________
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</EM><BR>
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<EM>> Get Your Private, Free E-mail from MSN Hotmail at <A HREF="http://www.hotmail.com">http://www.hotmail.com</A>
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> --
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</EM><BR>
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<EM>> Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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</EM><BR>
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<EM>> To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20Parallel%20Scanners%20(UMAX%20Astra%201220P)&In-Reply-To=<003e01bfd1f4$7caf6c80$0200000a@jerome>">majordomo@mostang.com</A>
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</EM><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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To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20Parallel%20Scanners%20(UMAX%20Astra%201220P)&In-Reply-To=<003e01bfd1f4$7caf6c80$0200000a@jerome>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0064.html">Michael Franz: "Re: Parallel Scanners (UMAX Astra 1220P)"</A>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Fri Jun 09 2000 - 02:25:16 PDT</EM>
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