Re: what gives a clear scan with Linux?

>>>>     I found the problem. It seems to be a permissions error!

>>>>     man sane-usb
>>>>     This is a short HOWTO-like section. For the full details, read the
>>>> fol‐
>>>>             lowing  sections.  The  goal  of  this  section  is  to get
>>>>     the scanner
>>>>             detected by sane-find-scanner(1).

>>>>             Run sane-find-scanner. If it lists your scanner with the
>>>>     correct vendor
>>>>             and  product  ids, you are done. See section SANE ISSUES for
>>>>     details on
>>>>             how to go on.

>>>>             sane-find-scanner doesn't list your scanner? Does it work as
>>>>       root?  If
>>>>             yes, there is a permission issue. See the LIBUSB section for
>>>>     details.

>>>>             Nothing  is found even as root? Check that your kernel
>>>>     supports USB and
>>>>             that libusb is installed (see section LIBUSB).

>>>>     <edit>
>>>>     LIBUSB
>>>>             SANE  can  only  use libusb 0.1.6 or newer. It needs to be
>>>>     installed at
>>>>             build-time. Modern Linux distributions and other operating
>>>>     systems come
>>>>             with libusb.

>>>>             Libusb  can  only access your scanner if it's not claimed by
>>>>     the kernel
>>>>             scanner driver. If you want to use libusb,  unload  the
>>>>       kernel  driver
>>>>             (e.g. rmmod scanner under Linux) or disable the driver when
>>>>     compiling a
>>>>             new kernel. For Linux, your kernel needs support for the USB
>>>>     filesystem
>>>>             (usbfs). For kernels older than 2.4.19, replace "usbfs" with
>>>>     "usbdevfs"
>>>>             because the name has changed. This filesystem must be
>>>>       mounted.  That's
>>>>             done  automatically  at  boot  time, if /etc/fstab contains
>>>>     a line like
>>>>             this:

>>>>                    none /proc/bus/usb usbfs defaults  0  0

>>>>             The permissions for the device files used by libusb  must
>>>>       be  adjusted
>>>>             for  user  access. Otherwise only root can use SANE devices.
>>>>     For Linux,
>>>>             the devices are located in /proc/bus/usb/ or in
>>>>       /dev/bus/usb,  if  you
>>>>             use  udev.  There  are directories named e.g. "001" (the bus
>>>>     name) con‐
>>>>             taining files "001", "002" etc. (the device files).  The
>>>>       right  device
>>>>             files can be found out by running scanimage -L as root.
>>>>     Setting permis‐
>>>>             sions with "chmod" is not permanent, however. They will be
>>>>     reset  after
>>>>             reboot or replugging the scanner.

>>>>     Okay, do I need to make it look like:

>>>>                      none /proc/bus/usb usbfs defaults  6   6

>>>>     or what do I need to do?

>>>>     On Tue, Dec 22, 2015 at 2:10 PM, Michael Havens <bmike1@gmail.com
>>>>     <mailto:bmike1@gmail.com>> wrote:

>>>>         I then tried:

>>>>           scanimage>test.scn
>>>>           scanimage: no SANE devices found

>>>>     --
>>>>     :-)~MIKE~(-: