Comment 36 for bug 910272

I checked the cups log, these are the last messages in the file:
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root@monsterbox:/# tail /var/log/cups/error_log
E [11/Jun/2013:00:31:44 -0500] [cups-driverd] Bad driver information file "/usr/share/cups/drv/cupsfilters.drv"!
W [11/Jun/2013:00:31:48 -0500] CreateProfile failed: org.freedesktop.ColorManager.AlreadyExists:profile id 'Generic-text-only-Gray..' already exists
E [11/Jun/2013:00:31:50 -0500] Returning IPP client-error-document-format-not-supported for Print-Job (ipp://localhost/printers/Generic-text-only) from localhost
E [11/Jun/2013:00:32:10 -0500] Returning IPP client-error-document-format-not-supported for Print-Job (ipp://localhost:631/printers/Generic-text-only) from localhost
E [11/Jun/2013:00:32:44 -0500] Returning IPP client-error-document-format-not-supported for Print-Job (ipp://localhost:631/printers/Generic-text-only) from localhost
E [11/Jun/2013:00:33:25 -0500] Returning IPP client-error-document-format-not-supported for Print-Job (ipp://localhost:631/printers/Generic-text-only) from localhost
E [11/Jun/2013:00:33:44 -0500] Returning IPP client-error-document-format-not-supported for Print-Job (ipp://localhost:631/printers/Generic-text-only) from localhost
E [11/Jun/2013:02:04:26 -0500] [cups-driverd] Bad driver information file "/usr/share/cups/drv/cupsfilters.drv"!
W [11/Jun/2013:02:04:37 -0500] CreateProfile failed: org.freedesktop.ColorManager.AlreadyExists:profile id 'Generic-text-only-Gray..' already exists
E [11/Jun/2013:02:04:38 -0500] Returning IPP client-error-document-format-not-supported for Print-Job (ipp://localhost/printers/Generic-text-only) from localhost