I was able to find a fix/workaround and regain LAN printing to the Canon with the latest kernels.
I went into Printer Properties for the printer. The Device URI looked like this: cnijbe2://Canon/?port=net&serial=F4-91-39-42-53-Z1 (Not my printer's real MAC address but you get the idea) I changed it to ipp://192.168.1.6 (where that is the LAN IP of the printer, permanently assigned in my router) And it worked! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1507863 Title: Lost ability to print on LAN printer with 3.16.0-51 kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-utopic/+bug/1507863/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs