I have a Canon MG6851 and running Ubuntu 14.04. And i cannot get the scanner to work over wifi. I tried SANE and scangearmp2. In theory i installed all Canon drivers and i did manage to set up the printer over wifi. But i cannot figure out to scan over wifi.
I know there might not be an out of the box solution but i would love to troubleshoot. I just don't know where to start. So some background:
For SANE i know, that my scanner is not in the list of supported devices, so that might be the problem in the first place ;) Although that is also mentioned that bjnp Protocol is supported, so i tried to add my scanners ip to sane.d/pixma.conf. No luck. Running scanImage -L -v prints:
[pixma] udp_command: No data received (select): timed out
[pixma] udp_command: No data received (select): timed out
[pixma] udp_command: No data received (select): timed out
[pixma] Cannot read scanner make & model: _]����
I am guessing here that it is trying to send a udp packet to the printer via bjnp://[ip-address] as noted in pixma.conf trice. And that is not working (i can however ping the ip-address). Might it be my printer not responding to bjnp or some misconfiguration of udp on the firewall? Can i test those isolated?
Anyway, i thought scangearmp2 would be able to achieve the wifi scanning as well? But the scanner was not detected. So can i troubleshoot the issue somehow (after all it might still work on SANE, so knowing the exact problem would help)?
P.S: I can scan over USB, so i thought i might be able to get scanning over wifi to work as well with some tweaking.
scangearmp2.. with the install script, it is surprising it did not set it up for you; do you have a firewall? some suggest dropping it to see if scanning works; then attempt to put back in place; I see the pixma.conf file gives as an example "bjnp://myscanner.my.domain:8612" and says "method must be bjnp" – pdc Dec 21 '17 at 00:31cnijnetprn --search autothat I found on searching around: does it give you a return? a link such as this http://linux.wikia.com/wiki/Getting_Canon_PIXMA_to_work_on_Linux suggests you should get something like "networkcnijnet:/00-1E-8F-67-4C-D8 “Canon MP6850 series” “Canon-MG6850-series_00-1E-8F-67-4C-D8″" if it is being seen – pdc Dec 21 '17 at 01:22ScanGear. I would not say it did not set it up, as it works for a wired connection, so it must have been successful somehow. I have no active firewall, and i was able to sendudppackets to the printer withnetcat. As far as thecnijnetprnis concerned: the repository mentioned is quite inactive for a long time and does not seem to support my printer model. Furthermore the printer works over wifi. So i was looking more into a solution of debugging the connection process as this obviously fails inscangearmp2. – user1171541 Dec 22 '17 at 10:07