i purchased new ink and my epson cx8400 would print very lightly...thought it was the ink...bought more new ink...now will not print at all....the print icons work...ther paper goes thru...nothing...i clicked my printer properties...clean head several times... clicked all the stuff in properties...the cleaned heads printed very lightly but did not print the black...anyone have any idea what to do? I have never had this problem before... i also checked the drivers and have the most updated drivers....my computer is a dell windows vista service pack 1 32 bit...thanks so much for your time.....