Just noticed a few days ago that my printer is not printing selected portions of the page. The colors are fine and photos print fine. The missing lines or portions of a line would be black or color and are missing. Drivers and software are up to date and nothing done to cause it. Makes no sense but it's happening. Any ideas?
I understand you're noticing the Officejet 7310 is printing portions of the page. I will do my best to assist you! I would recommend following this HP document on Missing, Faded, or Dull Colors. See if you're missing colors from this page. If so, then please continue following this document.
If this page comes out perfect, then please let me know.