Hi Jacqui I had the same printer and it went on for years and the cartridges were so big that they lasted ages I used to fill them myself, I gave the printer away to a young girl who was needing one for college as I had bought another HP a 7600 photosmart which I use for my cardmaking, I have a HP all in one which has about 6 seperate colour carts, anyway I buy my carts from a company with the same name and they do something called ink mailer which means they send you a cart out refilled with good quality ink and if ever they fail they just send you out a replacement I have been using them for years and they are good will IM you with the name.
Wendy