Hello, I have seen this error a few times already, and just to shed some light on the issue, it has to do with the printbar. The first series of this model had a defect out of the box. So I would get with HP and start the process of having HP swap them out as it is a known issue. Or if you want to be brave, try to find the part number and order the printbar and replace it, but I highly recommend getting with HP phone support and have them swap it.
Hope this helps......