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[Matthias Homann <1507863@xxxxxxxxxxxxxxxxxx>]

Some more details on the observe issues:
- I'm using the Canon drivers from ppa:michael-gruz/canon-trunk. They add a new network protocol shown "cnijnet:/" which doesn’t seem to work with the new kernel
- If the Canon printer was installed with previous kernel, it doesn't print because the cnijnet protocol stopped working. You can find the used protocol in the printer settings "device address"
- If you try to install a Canon printer with this kernel, it will detect the printer only with the protocol dns-sd and not cnijnet. The printer partly seems to work with this protocol, but not all features are supported (like the Canon printer tools)
- The Canon tool cnijnetprn doesn't find any network printer

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https://bugs.launchpad.net/bugs/1507863

Title:
  Lost ability to print on LAN printer with 3.16.0-51 kernel

Status in linux-lts-utopic package in Ubuntu:
  Confirmed

Bug description:
  After upgrading to new kernel, attempts to print resulted in no
  printer activity and no error messages.  Printer is Canon Maxify 2320
  using Canon Linux drivers and is attached via LAN.  Rebooted into -50
  kernel and printing worked normally again.

  Symptom is print job shows up in queue but is never sent to printer.

  Scanning function of printer works.

  Confirmed on following real machine installs

  Distro   version   arch     kernel
  Lubuntu   14.04     32    3.13.0-66
  Lubuntu   14.04     64    3.13.0-66
  Lubuntu   14.04     32    3.16.0-51
  Ubuntu    12.04     32    3.13.0-66
  Ubuntu    14.04     64    3.16.0-51

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.16.0-51-generic 3.16.0-51.69~14.04.1
  ProcVersionSignature: Ubuntu 3.16.0-51.69~14.04.1-generic 3.16.7-ckt17
  Uname: Linux 3.16.0-51-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.15
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Oct 19 23:09:09 2015
  InstallationDate: Installed on 2015-03-03 (230 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  SourcePackage: linux-lts-utopic
  UpgradeStatus: No upgrade log present (probably fresh install)

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