Comment 86 for bug 283811

Hi all,
Just to confirm the workaround...
I had the same problem, printing failed from Ubuntu 9.04 - Jaunty Jackalope on a samba shared printer (on an XP PC).
The issue came from only a few apps, like Firefox, but not on OpenOffice or Okular.
Normally the printer sharing on Windows shouldn't prompt for auth, yet the Cups error.log showed a "failed auth" message.

I changed the /etc/cups/printers.conf as suggested above:

#AuthInfoRequired username,password
AuthInfoRequired none
...
DeviceURI smb://serverUsername:serverPassword@sharePath

That fixed the problem, everything works even after restarting CUPS and/or the Ubuntu box (the printers.conf isn't modified).
Rebooting the Microsoft PC sharing the printer doesn't change the situation (still able to print).
Think have the same pb from a MAC OS X notebook, I'll try applying the same config changes and will advise.

Let me know if any log or other information is needed