HP LaserJet p1005 stopped working after upgrade
did you try to install hp software (as i know there is an hp driver and tool for linux) but before you install it try to remove the printers already define by ubuntu check here http://hplipopensource.com/hplip-web/index.html and try maybe it will work if it does not work and you mention that another printer also didn't work then it looks like a cups problem try to reinstall from the synaptic