Can't add printer

I can't add my HP PSC 1402. It was working fine until 13 Nov. Despite uninstalling it, reinstalling it, automatically activating the print spooler, it still can't be added. The error message reads: "Operation could not be completed." At one point it told me something about a RPC server problem.

I suspect it could be a print spooler problem or lack of disk space. What should I do?