<html><body>Hi, I try to install scanner <b>CANON Canoscan 9000F Mark II</b> via <b>USB </b>under OS linux <b>Ubuntu 12.04.LTS 64k</b>. After <b>scanimage -T</b> I get error <b>FAIL Error: Error during device I/O</b>. Other frontends ( xsane, gimp) says that I/O error appeared as well. Can somebody help me what to do next? Thanks Ales.<br><br><u><b>I did this steps:<br></b></u>- uninstall old version<br>- install new version 1.0.27<br>- create link<br><span style="font-size:12px">BACKENDS=pixma ./configure --prefix=/usr --localstatedir=/var --sysconfdir=/etc<br>sudo make instal<br>sudo ln -i -s /usr/lib/sane/libsane-pixma.so.1.0.27 /usr/lib/x86_64-linux-gnu/sane/libsane-pixma.so.1<br></span>- after sudo find / -name "libsane-pixma.*" I get<br><span style="font-size:14px"><span style="font-size:12px">/usr/lib/x86_64-linux-gnu/sane/libsane-pixma.so<br>/usr/lib/x86_64-linux-gnu/sane/libsane-pixma.so.1<br>/usr/lib/x86_64-linux-gnu/sane/libsane-pixma.la<br>/usr/lib/sane/libsane-pixma.so<br>/usr/lib/sane/libsane-pixma.so.1<br>/usr/lib/sane/libsane-pixma.so.1.0.27<br>/usr/lib/sane/libsane-pixma.la<br>/home/ales/sane/sane-backends-latest/sane-backends-1.0.27/backend/libsane-pixma.la<br>/home/ales/sane/sane-backends-latest/sane-backends-1.0.27/backend/.libs/libsane-pixma.so<br>/home/ales/sane/sane-backends-latest/sane-backends-1.0.27/backend/.libs/libsane-pixma.so.1<br>/home/ales/sane/sane-backends-latest/sane-backends-1.0.27/backend/.libs/libsane-pixma.lai<br>/home/ales/sane/sane-backends-latest/sane-backends-1.0.27/backend/.libs/libsane-pixma.so.1.0.27<br>/home/ales/sane/sane-backends-latest/sane-backends-1.0.27/backend/.libs/libsane-pixma.la<br></span></span>and<br><span style="font-size:12px">lrwxrwxrwx 1 root root 30 pro 6 23:53 /usr/lib/x86_64-linux-gnu/sane/libsane-pixma.la -> /usr/lib/sane/libsane-pixma.la<br>lrwxrwxrwx 1 root root 37 pro 6 23:51 /usr/lib/x86_64-linux-gnu/sane/libsane-pixma.so -> /usr/lib/sane/libsane-pixma.so.1.0.27<br>lrwxrwxrwx 1 root root 37 pro 6 22:23 /usr/lib/x86_64-linux-gnu/sane/libsane-pixma.so.1 -> /usr/lib/sane/libsane-pixma.so.1.0.27<br></span><br><u><b>I get this results:<br></b></u>- sane-find-scanner can find my scanner - the second one<br><span style="font-size:12px">found USB scanner (vendor=0x08ff, product=0x2580) at libusb:005:002<br>found USB scanner (vendor=0x04a9 [Canon], product=0x190d [CanoScan]) at libusb:002:003<br></span>- scanimage -L can find my scanner<br><span style="font-size:12px">device `pixma:04A9190D' is a CANON Canoscan 9000F Mark II multi-function peripheral</span><br>- scanimage -T get I/O error<br><span style="font-size:12px">scanimage: scanning image of size 638x877 pixels at 24 bits/pixel<br>scanimage: acquiring RGB frame, 8 bits/sample<br>scanimage: reading one scanline, 1914 bytes... FAIL Error: Error during device I/O<br></span>- scanimage -V get mismatch of versions<br><span style="font-size:12px">scanimage (sane-backends) 1.0.27; backend version 1.0.22<br></span>- other frontends ( xsane, gimp) can find scanner but get I/O error<br><br><u><b>from debugger lists it looks like ...<br></b></u>- from SANE_DEBUG_DLL=255 scanimage -L it looks that system can find correct version of backends at right place and can load it <br><span style="font-size:12px">[dll] load: searching backend `pixma' in `/usr/lib/x86_64-linux-gnu/sane:/usr/lib/sane'<br>[dll] load: trying to load `/usr/lib/x86_64-linux-gnu/sane/libsane-pixma.so.1'<br>[dll] load: dlopen()ing `/usr/lib/x86_64-linux-gnu/sane/libsane-pixma.so.1'<br>[dll] init: initializing backend `pixma'<br>[dll] init: backend `pixma' is version 1.0.17<br></span><br><span style="font-size:12px">[<span>dll] sane_get_devices: found 1 devices<br></span></span><span style="font-size:12px">device `pixma:04A9190D' is a CANON Canoscan 9000F Mark II multi-function peripheral<br>[dll] sane_exit: exiting<br>[dll] sane_exit: calling backend `pixma's exit function<br>[dll] sane_exit: finished<br></span>- from SANE_DEBUG_DLL=1 scanimage -T, looks like the scanimage at this case finds and uses wrong version and stops by I/O error<br><span style="font-size:12px">[sanei_debug] Setting debug level of dll to 1.<br>[dll] sane_init: SANE dll backend version 1.0.13 from sane-backends 1.0.22<br></span><br><span style="font-size:12px">scanimage: scanning image of size 638x877 pixels at 24 bits/pixel<br>scanimage: acquiring RGB frame, 8 bits/sample<br>scanimage: reading one scanline, 1914 bytes... FAIL Error: Error during device I/O<br></span><br>- SANE_DEBUG_DLL=3 scanimage -T gives more information about sane_init. I am not sure that it is important for loading of wrong backends version <br><span style="font-size:12px">[dll] sane_init: SANE dll backend version 1.0.13 from sane-backends 1.0.22<br>[dll] sane_init/read_dlld: using config directory `/etc/sane.d/dll.d'<br></span><br><u><b>at the end<br></b></u>1/ I am not sure I understood well the current state<br>2/ I don't know what to do next. Try to looking for mistake in my instalation of backends or try to check instalation and configuration of frontends and how, ...<br>3/ ... or looking for other mistake <br><br></body></html>