Do:
sudo dpkg --purge hplip-base sudo apt-get --reinstall install hplip sudo /etc/init.d/cupsys restart
Try adding you printer then. Soon we will have new CUPS packages in Dapper which should help most of these errors.
Do:
sudo dpkg --purge hplip-base
sudo apt-get --reinstall install hplip
sudo /etc/init.d/cupsys restart
Try adding you printer then. Soon we will have new CUPS packages in Dapper which should help most of these errors.