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    #1

    Walking on the edge... need some assistance Please.

    I'm still trying to get my scanner working- trying to install ISCAN. I have downloaded the rpm and used alien to convert the file. When I use dpkg, I get the following response:

    root@don-KDE:/home/spyder79/Desktop# dpkg -i iscan_2.10.0-2_i386.deb
    Selecting previously deselected package iscan.
    (Reading database ... 143864 files and directories currently installed.)
    Unpacking iscan (from iscan_2.10.0-2_i386.deb) ...
    dpkg: error processing iscan_2.10.0-2_i386.deb (--install):
    trying to overwrite `/usr/lib/sane/libsane-epkowa.la', which is also in package libsane-extras
    dpkg-deb: subprocess paste killed by signal (Broken pipe)
    Errors were encountered while processing:
    iscan_2.10.0-2_i386.deb

    Can anyone tell me what to do next? I'm way beyond my experience here... following some explicit instructions I found on this forum. I have a little bit of plumbing experience but can't find the broken pipe
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    #2
    Re: Walking on the edge... need some assistance Please.

    What happens, if you just click on the .deb file and select to have it installed?
    Windows no longer obstructs my view.
    Using Kubuntu Linux since March 23, 2007.
    "It is a capital mistake to theorize before one has data." - Sherlock Holmes​
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      #3
      Re: Walking on the edge... need some assistance Please.

      Just so I'm clear on what you're suggesting... I can click on the .deb file (which is currently on my desktop) and choose EXTRACT from Ark menu. It suggests creating a destination folder, but there's no indication that anything would be installed (as I understand it). Is that what you mean?
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        #4
        Re: Walking on the edge... need some assistance Please.

        Originally posted by Snowhog
        What happens, if you just click on the .deb file and select to have it installed?
        Right, I had missed that option... Gave the same result when I tried it, same message exactly.
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          #5
          Scanner installation problem, can anyone help?

          Anyone have a suggestion on how to proceed from here?
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            #6
            Re: Walking on the edge... need some assistance Please.

            As said in the How To: Convert any package from one format to another (using "alien")
            http://kubuntuforums.net/forums/inde...opic=3087256.0

            Jucato:
            Please include a warning that this should only be taken as a last resort, when no native package is available. It is even less recommended than compiling your own package. A non-native package (for example an .rpm) even if converted to a native package (like .deb for Kubuntu) still has the potential to ruin a system. It can place files in wrong places or place wrong files in important places. So use with caution.

            Have you tried to find Debian (.deb) iscan ?

            Hmm - Debian Changelog sane-backends-extras tells:
            sane-backends-extras (1.0.18.5) unstable; urgency=low

            * Updated backend:
            + epkowa updated from iscan 2.3.0-1.
            Debian >> Packages >> Package Search Results
            You have searched for source packages that names contain sane-backends-extras
            => Binary packages: libsane-extras

            From repositories:
            libsane-extras
            API library for scanners -- extra backends (1.0.18.8 (gutsy))

            You can force packages. BUT !! as said in the dpkg man file:
            Warning: These options are mostly intended to be used by experts only. Using them without fully understanding their effects may break your whole system.
            So before you use force: man dpkg or/and man:dpkg (konqueror)

            => Using force (example):
            Code:
            sudo dpkg -i --force-all iscan_2.10.0-2_i386.deb

            Links:

            Ubuntu packages
            http://packages.ubuntu.com/

            Debian packages
            http://www.debian.org/distrib/packages
            Before you edit, BACKUP !

            Why there are dead links ?
            1. Thread: Please explain how to access old kubuntu forum posts
            2. Thread: Lost Information
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              #7
              Re: Walking on the edge... need some assistance Please.

              Thank you for the information! So libsane-extras already contains what I've been trying to install? That explains a lot of things, except of course why my scanner doesn't work. I already have the libsane-extras package installed. The information I've been reading is quite confusing, especially since it comes from various sources, written over a number of years, referencing several distributions, and concerning an evolving USB situation.

              I still don't know yet how to get my scanner working, but at least you've saved me from a potentially dangerous and unnecessary dead-end.
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                #8
                Re: Walking on the edge... need some assistance Please.

                I think this may be my scanner problem:

                spyder79@don-KDE:~$ scanimage -l
                [snapscan] Cannot open firmware file /usr/share/sane/snapscan/your-firmwarefile.bin.
                [snapscan] Edit the firmware file entry in snapscan.conf.
                scanimage: open of device snapscan:libusb:004:004 failed: Invalid argument

                Can anyone tell me what to do next? Where do I find a proper 'firmware file' and how to install it?
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                  #9
                  Re: Walking on the edge... need some assistance Please.

                  What kind of scanner do you have ? It is connected in the usb ?

                  What tells lsusb ?
                  Here:
                  :~$ lsusb
                  Bus 003 Device 001: ID 0000:0000
                  Bus 002 Device 001: ID 0000:0000
                  Bus 001 Device 003: ID 03f0:0405 Hewlett-Packard ScanJet 3400cse
                  Bus 001 Device 001: ID 0000:0000

                  If you have epson or SnapScan scanner, maybe this helps:

                  HOWTO: Epson Perfection 1670 Scanner (and other SnapScan scanners)
                  http://ubuntuforums.org/showthread.php?t=26911
                  Before you edit, BACKUP !

                  Why there are dead links ?
                  1. Thread: Please explain how to access old kubuntu forum posts
                  2. Thread: Lost Information
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                    #10
                    Re: Walking on the edge... need some assistance Please.

                    I have an Epson Perfection 1670 and it is connected via USB.

                    spyder79@don-KDE:~$ lsusb
                    Bus 004 Device 004: ID 04b8:011f Seiko Epson Corp. Perfection 1670
                    Bus 004 Device 001: ID 0000:0000
                    Bus 001 Device 003: ID 03f0:3104 Hewlett-Packard DeskJet 960c
                    Bus 001 Device 001: ID 0000:0000
                    Bus 003 Device 001: ID 0000:0000
                    Bus 002 Device 002: ID 0d62:a100 Darfon Electronics Corp. Benq Mouse
                    Bus 002 Device 001: ID 0000:0000
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                      #11
                      Re: Epson Perfection 1670 scanner problem... SOLVED.

                      THANK YOU!!! I found the answer via the thread (below). At the very end of the thread I find out that there is a known bug in Feisty, a USB problem, that didn't exist in Edgy. It causes a communication problem with some scanners, which produces the exact symptoms I've been dealing with. Fortunately, there is a strange but effective work-around that seems to work for me. Supposedly this problem was fixed in Gutsy. You have to read through to the end of the thread to find the work-around.

                      Originally posted by Rog131

                      If you have epson or SnapScan scanner, maybe this helps:

                      HOWTO: Epson Perfection 1670 Scanner (and other SnapScan scanners)
                      http://ubuntuforums.org/showthread.php?t=26911
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