Hi Ken,
Do you know if you installed the Hewlett-Packard's Linux Imaging and Printing software (HPLIP)?
See here for Ubuntu version 12.04 and above -
http://hplipopensource.com/hplip-web...os/ubuntu.html
See also -
http://hplipopensource.com/hplip-web/index.html
Best Regards
Gary Kopff
UNIX/Linux user for 37 years
Laser printer controller designer for 10 years