[Bug 1608161] Re: printing not working after upgrade to 16.04

[Janos G. Komaromi]

Printing finally works, but it was a lengthy and complicated process. Here are the steps I took, as best as I can remember:
(1) installed 16.04 on a different machine (virgin install) - so that I can find out what the real picture is
(2) ran gnome-software (because on the distro update this gnome-software command is not part of my gui menu, only the previous "Ubuntu Software Center" is there.
(3) downloaded recommended 16.04 missing software, including cups (in fact, I removed cups related software with synaptic package manager when printing did not work)
(4) Studied 16.04 wiki printing related stuff. Discovered that /etc/cups/cupsd.conf file did not exist on my machine, but there was a cupsd.conf.O file still there.
(5) Edited the cupsd.conf.O file according to wiki instructions and saved it without the .O tail; restarted cups service according to wiki.
(6) Now the cups web interface (127.0.0.1:631) worked, and the printer setting gui also worked.
(7) The rest of the stuff was the same as when I installed printers years back with the first installation of xubuntu, then 12.04. Because I have an HP Laserjet P1102w printer I had to run hp-plugin -i command from terminal in order to avoid gui printer setup error.
(8) I could also install my Lexmark color printer using samba network shared printer from my old Fc3 machine and selecting Generic Postscript driver. Same trick I did before because the Lexmark proprietary driver package installation did not work from Xubuntu. This was a workaround. My old Fc-3 linux machine shares the same Lexmark color printer to not only xubuntu bu also to old Windows machines as well.
F.Y.I. - hope this helps developers and others with similar problems
jankom

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https://bugs.launchpad.net/bugs/1608161

Title:
  printing not working after upgrade to 16.04

Status in ubuntu-release-upgrader package in Ubuntu:
  Confirmed

Bug description:
  Yesterday I completed distribution upgrade from 14.04 to 16.04. While
  it was a lengthy process everything seemed ok (even though I lost my
  background picture on desktop but later was able to restore it to what
  it was before upgrade).

  However, today I tried to print something and it fails. I have an HP
  P1102w, and it worked perfectly before. I did all recommendations
  according to your wiki (network is OK, cups is seeing the printer,
  etc. etc.). I even deleted and reinstalled the printer, but when
  trying to print test page after installation an error shows
  up"hplip.plugin". I also reinstalled the hplip package but no help.

  Does this have something to do with HP proprietary software and
  agreeing to some license blah-blah? I remember originally when I
  installed the printer in 14.04 there was something like that. Now
  everything is hidden behind the fancy gui stuff and I'm stuck with no
  printing.

  I have another wireless printer, a Lexmark that I previously used as a
  shared printer from another linux box (where I was able to jury-rig
  the linux driver), and it worked well. Now I cannot use it, because
  there is a cups error: There was an error during the CUPS operation:
  'Transport endpoint is not connected'. Again, now I have no printer at
  all.

  My network is working well, I can see the other linux box or files on
  it, but cannot use the shared Lexmark color printer. I remember,
  during the upgrade there were some terminal messages that could not
  delete some cups orr ppd related directories, because they were not
  empty (apparently the script did not use the -rf option for rm). Could
  this have anything to do with my complete shut out of printing
  capability? Needless to say, I can print to  both HP P1102w or Lexmark
  printers from the other linux box (an old Fedora-3 distro).

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