I have had problems with CUPS since 10.04, I'm now running 12.04 on a laptop, Samsung RV511 with an HP LaserJet 1022. The HP 1022 prints but only one or two pages before a page is half fed thru and this stalls the printing.
Altho this sounds rather like a printer feed fault, it has only been apparent since I installed 12.04 about 6 weeks ago. Prior to that CUPs would, intermittently, load up jobs and just sit there "processing". This could be solved by turning the printer off and then on. While this fault (whatever its cause) no longer happens, I'm now faced with this new problem. This is a real hassle. Any help would be appreciated.