Lowest Price Lexmark #23 Black Ink Cartridge (18C1523)

I have an X4550 wireless printer. I bought this ink from Amazon. I installed it and it wouldn't print at all. Amazon was going to pay shipping on a return but I was pinched to finish printing a paper that night. I searched the Lexmark site and found that some, but not all, X4550 models need an update that you can down load from their site. It's easy to find on their site and super fast to down load and install. Then you don't need to do it again after that.
So if you installed this cartridge and can't print, just do the down load and you're good to go.Get more detail about Lexmark #23 Black Ink Cartridge (18C1523).