HP 2015DN Printer - Paper Jam Fix !!
Recently we had a HP 2015DN fail, the paper jam light would come on straight away and it had no network connectivity.
After doing some reading, we took the side off and pressed the "Test Engine" button.
It printed a test page just fine (horizontal lines). This means that the problem is 99% the "Formatter Board"
There are plenty of people on fixyourprinter.com saying that taking this out and sticking it in the oven, reflows the solder ball joints on the chip in the middle.
After 9min at 185c, it was cooked :)
Took it back to work next day, it has worked fine for over a week now.
Thats saved us £68.80....
hope this can help others too
Peel the plastic material strip thing off near the RAM slot before cooking (as you can see I forgot)
Place it on something to keep it off the metal tray
Let it cool for 30min