The problem happens when I try to print anything at all; lp /etc/motd was just convenient. I believe, as did the original author, that the bug is in hplip, not cups. fwiw /etc/motd contains:
Linux jpeach-desktop 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:58:03 UTC 2009 x86_64 -- Can't print on HP 4000N with Jaunty https://bugs.launchpad.net/bugs/348834 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs