Hi Alan, The libsane version from Debian doesn't support your scanner.
You need to install Sane Development Version from git as described in README.linux (http://www.sane-project.org/docs.html). Cheers, Rolf Am 19.08.2015 um 22:13 schrieb Alan McConnell: > First of all, thanks for your post, with the helpful hints. I > can narrow my questions; see below. > > On Thu, Aug 20, 2015 at 01:38:37AM +0900, Gernot Hassenpflug wrote: > . . . . > >>> found USB scanner (vendor=0x04a9, product=0x2774) at libusb:001:004 > I can't find where the above line tells _exactly_ what > Canon backend is the appropriate one. I think the above > tells me what the Canon backend should be, and also tells > me the USB port. > >> What version of SANE do you have installed? You can look at the package >> libsane, e.g. >> aptitude show libsane >> (on my Debian unstable installation it is 1.0.24-13, although I also >> install the latest development version in /usr/local) > The above call to aptitude tells me that I have > Version: 1.0.22-7.4 > > >> The MF4700 series has been in SANE since before December 2013, so unless >> you are using an ancient version of SANE, it is most likely that you have >> the backend you need in SANE. > I believe I do. I remember seeing, back in April, that MF4770n > was supported. > >> The documentation in README.linux that comes with the SANE code should help >> you check the installation and do some debugging, or at least specify to >> the list which steps you managed to succeed in, and where things failed. > Thank you very much for this tip. From README.linux, I learned: > "The device files used by libusb are located in /proc/bus/usb/ > . . .or in /dev/bus/usb/". For me, they are in > /dev/bus/usb/, which means, I guess, that I am running udev. > I also put the line USB_DEVFS_PATH=/dev/bus/usb into > my .bashrc. But the call to scanimage >image.pnm still > fails. My USB socket lights blink furiously, eventually > the call returns with no SANE devices found and > I am left with an empty file, image.pnm, which I then delete. > >> /usr/share/doc/libsane/README.Debian.gz (a Debian-specific file with a >> trouble-shooting section) > This didn't help me. > > I think I must be close<g>. But even though I know that > the scanner is seen, and I know the ports in /dev/bus/usb, > I can't get scanimage to work. I hope for further suggestions. > > Alan > -- sane-devel mailing list: [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject "unsubscribe your_password" to [email protected]
