Toner cartridges are some of the most common cartridges given the fact that I use one of them too. The reasons as to why I also use them are brought about by the reason that it comes with a large quantity of both the ink and the toner. This is so when you compare it to other cartridges which do not offer as much ink and therefore do not allow you to print as many pages as you would with the Lexmark C5240CH. Another thing that has given me a good time with it is the fact that it is also compatible with a variety of printers.