Lexmark Z54se ink cartridges are more costly than most competing models, making it much more expensive to own in the long run. The two Lexmark Z54se ink cartridges (a single black and a single color cartridge) are very easy to access and replace, however. The machine can be used with either a Windows or Mac computer, which will be welcome news for Mac owners. The Canadian version, the Lexmark Z54, has been discontinued.