Title: Original HP 21 Black Ink Cartridge in Retail Packaging fails to work
Review: This product was a waste of my money. It printed two pages perfectly and ever since then my printer gives me an error message that the cartridge is not compatible and it refuses to print anything at all, unless I remove the cartridge. When I remove it the printer prints well off my color cartridge but I still get the same error when I put the black one back in. I do not recommend anyone buy this item and I am very unhappy with my purchase.
Is this product review negative?