Hi there,
After reading all the reviews I tried the following steps.
1) reinstalling software after removing Microsoft installed software.
2) cleaning printer cartridge heads
3) Wiping the print heads.
Finally I got annoyed and took the print head to the sink and ran a tap slowly through the black sponge to clear any debris (this just popped out of the printer like the ink cartride did. I made sure not to get the gold plate wet and then dabbed it dry once the water ran clear.
Popped it back in the printer and ran the calibration and sure enough it prints fine. Must have just been some back ink clogging somewhere due to not using it for 6 months