[sane-devel] Need help with Canon scanner

[Alan McConnell]

On Thu, Aug 20, 2015 at 05:52:18PM +0200, Jeffrey Ratcliffe wrote:
> On 20 August 2015 at 16:23, Alan McConnell <alan at his.com> wrote:
> >       But this gives me error messages, letting me know that
> >       the install was not successful.
> 
> What are the error messages?
           Here they are:
(start)--------------------------
dpkg: dependency problems prevent configuration of libsane:i386:
 libsane:i386 depends on libsane-common (= 1.0.24-8); however:
  Version of libsane-common on system is 1.0.22-7.4.
 libsane:i386 depends on libc6 (>= 2.15); however:
  Version of libc6:i386 on system is 2.13-38+deb7u8.
 libsane:i386 depends on libexif12 (>= 0.6.21-1~); however:
  Version of libexif12:i386 on system is 0.6.20-3.
 libsane:i386 depends on libgphoto2-6 (>= 2.5.2); however:
  Package libgphoto2-6 is not installed.
 libsane:i386 depends on libgphoto2-port10 (>= 2.5.2); however:
  Package libgphoto2-port10 is not installed.
 libsane:i386 depends on libjpeg62-turbo (>= 1.3.1); however:
  Package libjpeg62-turbo is not installed.
 libsane:i386 depends on libtiff5 (>= 4.0.3); however:
  Package libtiff5 is not installed.

dpkg: error processing libsane:i386 (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 libsane:i386

                                 ------------------------(finish)

	You can see that I am playing right into dependency hell!
	Not good.

> >       So, alas, I need further assistance.  Is there a way
> >       of removing _all_ sane stuff from my computer and
> >       then downloading from sane-project.org a bunch of the
> >       latest packages?  This seems cumbersome, but what I
> >       am doing is not successful.
> 
> The sane project does not distribute binaries. Before you give up on
> the binaries from Debian, let us see what the problem was.
          I have been told by several authoritative voices that
	  the problem was a too old libsane.  I attempted to correct
	  this with a download of a more up-to-date libsane, with
	  the results as above.

Thanks for your message, and suggestions.  I hope for more, as I'd
really like to be able to scan.  So far, the actual Canon MF4770n
seems like a very well-built piece of equipment.  As mentioned,
it prints fine, and it also copies well; of course the copying
is done by pressing buttons on the Canon and doesn't involve
my computer at all.

TIA for further help and suggestions.

Alan

-- 
Alan McConnell :  http://globaltap.com/~alan/
     "St Francis! preaching to the birds!  if he had really
     wanted to save birds, he'd have preached to the cats."