[sane-devel] Problem using Canon Pixma MX882 on CentOS 6.5

[m. allan noah]

Have you tried as root? Chances are, these new scanners are not in
your system's device permission rules, and regular users cannot use
them.

allan

On Sat, Mar 29, 2014 at 3:11 PM, Lincoln Peters <anfrind at gmail.com> wrote:
> I have a machine running CentOS 6.5, an old Epson Perfection 2400
> Photo scanner (which I need to replace because light is starting to
> leak into it), and a new Canon Pixma MX882 all-in-one, both of which
> are shown as fully supported on the "Supported Devices" page.  CentOS
> 6.5 comes with sane-backends 1.0.21 and sane-frontends 1.0.14.  When I
> ran sane-find-scanner with both scanners plugged in, it showed the old
> Epson but not the new Canon, so I tried upgrading sane-backends to the
> latest version, 1.0.24.
>
> I built sane-backends from source, enabling Avahi and installing to
> /usr instead of /usr/local (./configure --prefix=/usr
> --sysconfdir=/etc).  I didn't make any changes to sane-frontends
> because CentOS 6.5 already appears to provide the latest version.  Now
> sane-find-scanner shows both scanners, but not scanimage or any of the
> frontends:
>
> # sane-find-scanner
> [snip]
> found USB scanner (vendor=0x04a9 [Canon], product=0x1750 [MX880
> series]) at libusb:002:007
> found USB scanner (vendor=0x04b8 [Epson], product=0x011b [EPSON
> Scanner]) at libusb:001:006
>   # Your USB scanner was (probably) detected.  It may or may not be supported by
>   # SANE.  Try scanimage -L and read the backend's manpage.
> [snip]
>
> # scanimage -L
> device `epson:libusb:001:006' is a Epson GT-9300 flatbed scanner
>
> When I run xsane, it likewise only sees the old Epson scanner.
>
>
> Is there some additional step I'm missing?  The documentation for the
> pixma driver makes it sound like everything should work automatically
> as long as I'm connecting via USB, which I am (the MX882 has a network
> mode that I have not yet attempted to use).
>
> Thanks in advance.
>
>
> --
> Lincoln Peters
> <anfrind at gmail.com>
>
> --
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