HP 5510 creating lots of annoying error and warning messages.....
After searching forums including HP http://h30434.www3.hp.com/t5/Ink-Toner-Cartridge-Printhead/Photosmart-5510-All-in-One-Series-printer/m-p/1063861#M4410
I went back to the HP utility interface to see if it was anything to do with pilot error
After some looking around I discovered that this issue was solved (for me at least) by selecting the device, going to the 'message center', selecting 'settings' and then changing the 'alert settings' to shut off those extremely annoying messages.
So far so good... Sometimes it pays to go back to the problem and have another look around!