No matter what I did it would never power on. It just loaded for a few seconds on hp load screen and hen went to a blue screen 'C20...." Then blank flashing screen. I removed the CIS and boxed it away to mess with later. Today, almost 4 weeks later--before I tossed the thing in the garbage this morning I decided to plug it in...and it booted up normal looking for cartridges. I let the printer sit for about a week unplugged and tried it and the same blue/blank screen happened--so this is definitely strange.
I reprised the CIS and installed the cartridges all normal. When I printed the test page/alignment page pools of black ink were dripping onto the paper. There wasn't much semblance of anytHing but black ink drips everywhere. At the end some text decided to make its way out--then I got the error "print system failure please shutdown printer" which I did--and here I am again--back to the blue screen error. For whatever reason it appears that I am flooding the hell out of the print head and this is causing the issue. My only guess is something dried up enough in the 4 week span for the printer to decide it could boot up. Where does all the ink go from cleaning operations? Is there some sort of pad I could replace or clean up to make it come back alive? What is causing all that black ink to come out?