Overtime, I have come across a variety of toner cartridges which I have found not to be as useful as I would have wanted or required. This is because they usually do not have the required qualities and features which would ensure I have an easy time when using them. With the Canon FX2 Remanufactured Black Toner Cartridge For Fax L500/550/600, I have a good time using it given that it is very compatible with most printers. This means that it can work with most of them and I therefore get to use it through a few simple connections. Another feature is that it is extremely effective since it has a long shelf life and I am therefore able to use it for a long period of time.