how did you clean the print head ?
if you did that manually by taking it out of the printer and soaking it in water it may need to be primed before it will print
try running the automatic print head cleaning on the printer menu a few times
also you might just be out of ink. or the cartridge dried up
it is tough to diagnose anything else is wrong until you try new cartridges just to make sure that wasnt the problem, because if the cartridges are bad nothing else will ever fix it.