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<TITLE>sane-devel: Re: Snapscan.... Help!</TITLE>
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<META NAME="Author" CONTENT="John Coppens (jcoppens@linux2.uccor.edu.ar)">
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<META NAME="Subject" CONTENT="Re: Snapscan.... Help!">
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<H1>Re: Snapscan.... Help!</H1>
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<!-- received="Tue Dec 19 07:12:19 2000" -->
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<!-- isoreceived="20001219151219" -->
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<!-- sent="Tue, 19 Dec 2000 12:25:39 -0300" -->
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<!-- isosent="20001219152539" -->
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<!-- name="John Coppens" -->
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<!-- subject="Re: Snapscan.... Help!" -->
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<STRONG>From:</STRONG> John Coppens (<A HREF="mailto:jcoppens@linux2.uccor.edu.ar?Subject=Re:%20Snapscan....%20Help!&In-Reply-To=<200012191525.MAA31674@linux2.uccor.edu.ar>"><EM>jcoppens@linux2.uccor.edu.ar</EM></A>)<BR>
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<STRONG>Date:</STRONG> Tue Dec 19 2000 - 07:25:39 PST
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<P>
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A little more...
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<BR>
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<P>When scanning (after rebooting), the color option doesn't transfer the image. I does
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<BR>
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scan, but no actual data transfer takes place. This _does_ work under grayscale and
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<BR>
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line art. I also tried several resolutions. The progress bar in the small window doesn't
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<BR>
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even appear when colour is selected.
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<BR>
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<P>Another question... Should the preview be in color or in b/w (it's b/w here)
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<BR>
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<P>John
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<BR>
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<P>On Tue, 19 Dec 2000 01:20:34 -0300 John Coppens <<A HREF="mailto:jcoppens@linux2.uccor.edu.ar?Subject=Re:%20Snapscan....%20Help!&In-Reply-To=<200012191525.MAA31674@linux2.uccor.edu.ar>">jcoppens@linux2.uccor.edu.ar</A>> wrote/El dddd> Hi Chris!
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<BR>
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<EM>>
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</EM><BR>
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<EM>> Thanks for the reply. This certainly pushed me in the right direction. I tried several combinations
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</EM><BR>
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<EM>> of scanner/usbscanner in /dev and /dev/usb, but never hit on the correct one till your mail.
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</EM><BR>
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<EM>> It wasn't enough though. I also had to edit manually scanimage.h to add the SNAPSCAN
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</EM><BR>
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<EM>> 1212U_2 line. From then on things started to look up...
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> I tried a few scans - made a preview that came out monochrome (this normal?). Generally
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</EM><BR>
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<EM>> the scanner seems to be slow. After hours of testing I did some social life for a while, when
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</EM><BR>
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<EM>> I came back scanner was dead: I cannot use the 'sleep' button, and no programs run
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</EM><BR>
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<EM>> anymore. Dmesg says:
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> scanner.c: write_scanner: NAK recieved.
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</EM><BR>
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<EM>> usb_control/bulk_msg: timeout
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> find-scanner hangs and times out after a minute or so. Same for other programs...
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> I rmmod and re-insmodded the scanner, no difference. Tried the same with usb-uhci,
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</EM><BR>
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<EM>> and the scanner light went out/on/out, but still no action with the sane programs.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Suggestions?
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> John
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> On Mon, 18 Dec 2000 16:56:25 -0500 <A HREF="mailto:cbagwell@sprynet.com?Subject=Re:%20Snapscan....%20Help!&In-Reply-To=<200012191525.MAA31674@linux2.uccor.edu.ar>">cbagwell@sprynet.com</A> wrote/El dddd> You might want to look for an email I sent out a while back on snapscan and USB gotchas.
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> > Here are a few things about that again. If I ever get some free time, I'll clean up the USB code so its not such a problem.
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> > 1) Do not have a /dev/scanner link if your using USB. It just confuses to much of the current code.
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</EM><BR>
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<EM>> > 2) Make a symbolic link from /dev/usb/scanner0 to /dev/usbscanner (if your scanner is really at scanner0).
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</EM><BR>
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<EM>> > 3) Make sure you have modified your snapscan.conf file and have /dev/usbscanner listed in it.
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</EM><BR>
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<EM>> > 4) Do not run *scanimage from the backend directory (it will use the wrong snapscan.conf file).
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</EM><BR>
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<EM>> > 5) run scanimage with -d snapscan:/dev/usbscanner
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> > Part of the problem is that the device name /dev/usbscanner is hardcoded in parts of the scapscan USB driver. If thats not consistently used then you will see the "... not in current list" error.
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> > Chris
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> > <A HREF="mailto:sane-devel@mostang.com?Subject=Re:%20Snapscan....%20Help!&In-Reply-To=<200012191525.MAA31674@linux2.uccor.edu.ar>">sane-devel@mostang.com</A> wrote:
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</EM><BR>
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<EM>> > > Thanks for replying Sebastien!
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</EM><BR>
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<EM>> > This is the debug log:
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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>> > on6jc:/usr/local/src/hardware/sane-1.0.3# scanimage -dsnapscan:/dev/usbscanner0
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</EM><BR>
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<EM>> > [sanei_debug] Setting debug level of snapscan to 255.
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</EM><BR>
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<EM>> > [snapscan] sane_snapscan_init
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</EM><BR>
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<EM>> > [snapscan] add_device(/dev/usb/usbscanner0)
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</EM><BR>
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<EM>> > [snapscan] usb_open(/dev/usb/usbscanner0)
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</EM><BR>
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<EM>> > [snapscan] add_device: error opening device /dev/usb/usbscanner0: Invalid argument
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</EM><BR>
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<EM>> > [snapscan] add_device(option connect-device)
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</EM><BR>
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<EM>> > [snapscan] usb_open(option connect-device)
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</EM><BR>
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<EM>> > [snapscan] add_device: error opening device option connect-device: Invalid argument
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</EM><BR>
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<EM>> > [snapscan] sane_snapscan_open (/dev/usbscanner0, 0xbffff250)
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</EM><BR>
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<EM>> > [snapscan] find_device
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</EM><BR>
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<EM>> > [snapscan] sane_snapscan_open: device "/dev/usbscanner0" not in current device list.
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</EM><BR>
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<EM>> > scanimage: open of device snapscan:/dev/usbscanner0 failed: Invalid argument
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</EM><BR>
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<EM>> > [snapscan] sane_snapscan_exit
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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>> > On 18 Dec 2000 18:53:53 +0100 Sebastien Sable wrote/El dddd> John Coppens writes:
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</EM><BR>
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<EM>> > >
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</EM><BR>
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<EM>> > > > Hi...
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</EM><BR>
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<EM>> > > >
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</EM><BR>
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<EM>> > > > I'm near desperation. Also, I'm frustrated, as everything seems to be ok, still
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</EM><BR>
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<EM>> > > > I cannot scan.
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</EM><BR>
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<EM>> > >
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</EM><BR>
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<EM>> > > Have you tried snapscan last version?
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</EM><BR>
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<EM>> > > <A HREF="http://snapscan.sourceforge.net">http://snapscan.sourceforge.net</A>
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</EM><BR>
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<EM>> > >
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</EM><BR>
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<EM>> > > what about:
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</EM><BR>
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<EM>> > >
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</EM><BR>
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<EM>> > > export SANE_DEBUG_SNAPSCAN = 255
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</EM><BR>
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<EM>> > > xscanimage
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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>> >
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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:%20Snapscan....%20Help!&In-Reply-To=<200012191525.MAA31674@linux2.uccor.edu.ar>">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>> >
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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:%20Snapscan....%20Help!&In-Reply-To=<200012191525.MAA31674@linux2.uccor.edu.ar>">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>>
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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:%20Snapscan....%20Help!&In-Reply-To=<200012191525.MAA31674@linux2.uccor.edu.ar>">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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<P>--
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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:%20Snapscan....%20Help!&In-Reply-To=<200012191525.MAA31674@linux2.uccor.edu.ar>">majordomo@mostang.com</A>
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</PRE>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Tue Dec 19 2000 - 07:13:44 PST</EM>
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