Are you still having a problem with this? If the ink levels works then the cart align shouldn't give any printer communication errors. also try running hp-info and post the output.
Aaron -- hplip cannot find DeskJet 5440 printer, despite CUPS's claims to the contrary https://launchpad.net/bugs/49107 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs