I had exactly the same problem, on ubuntu12.04, with cups-1.5.3-0ubuntu4, then I downgraded to 1.5.2- through synaptic manager.
but problem still exists: I have a Debian box running as a printer server, with a printer attached to USB, then I added the Debian box using ipp protocol on my Ubuntu laptop. when I print anything, it says "/...../backend/ipp failed", the relevant error is (rsss is my printer name on from the laptop setting): D [08/Oct/2012:23:52:29 -0700] cupsdReadClient: 16 1.1 Get-Jobs 1 D [08/Oct/2012:23:52:29 -0700] Get-Jobs ipp://localhost/printers/rsss D [08/Oct/2012:23:52:29 -0700] Returning IPP successful-ok for Get-Jobs (ipp://localhost/printers/rsss) from localhost D [08/Oct/2012:23:52:29 -0700] cupsdSetBusyState: newbusy="Printing jobs and dirty files", busy="Active clients, printing jobs, an d dirty files" D [08/Oct/2012:23:52:29 -0700] [Job 184] Get-Printer-Attributes: client-error-forbidden (Forbidden) D [08/Oct/2012:23:52:29 -0700] [Job 184] Get-Printer-Attributes returned client-error-forbidden. D [08/Oct/2012:23:52:29 -0700] [Job 184] ATTR: auth-info-required=none D [08/Oct/2012:23:52:29 -0700] load_ppd: Loading /var/cache/cups/rsss.data... D [08/Oct/2012:23:52:29 -0700] Calling DeleteDevice(cups-rsss) D [08/Oct/2012:23:52:29 -0700] failed to DeleteDevice: org.freedesktop.DBus.Error.InvalidArgs:Type of message, `(s)', does not match expected type `(o)' D [08/Oct/2012:23:52:29 -0700] Using profile id of rsss-Gray.. D [08/Oct/2012:23:52:29 -0700] Calling CreateProfile(rsss-Gray..,temp) W [08/Oct/2012:23:52:29 -0700] failed to CreateProfile: org.freedesktop.ColorManager.AlreadyExists:profile id 'rsss-Gray..' already exists I [08/Oct/2012:23:52:29 -0700] Registering ICC color profiles for "rsss" D [08/Oct/2012:23:52:29 -0700] Calling CreateDevice(cups-rsss,temp) W [08/Oct/2012:23:52:29 -0700] failed to CreateDevice: org.freedesktop.ColorManager.AlreadyExists:device id 'cups-rsss' already exists D [08/Oct/2012:23:52:29 -0700] cupsdRegisterPrinter(p=0xb7e7fd70(rsss)) D [08/Oct/2012:23:52:29 -0700] cupsdMarkDirty(P-----) D [08/Oct/2012:23:52:29 -0700] cupsdSetBusyState: newbusy="Printing jobs and dirty files", busy="Printing jobs and dirty files" D [08/Oct/2012:23:52:29 -0700] PID 18177 (/usr/lib/cups/filter/foomatic-rip) exited with no errors. D [08/Oct/2012:23:52:29 -0700] PID 18178 (/usr/lib/cups/backend/ipp) stopped with status 2. D [08/Oct/2012:23:52:29 -0700] [Job 184] kid4 received signal 13 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/995111 Title: Print failure since upgrade to 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/995111/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
