One way to find the ink and toner that works with your printer is to search by the model number of your machine. Many cartridges have compatibility listings right on the box, so you can easily find the one that fits. Another way to find compatible ink and toner, is to search by cartridge model number. If you have your empty cartridge handy, you can use it to find an exact replacement or even a remanufactured cartridge that is designed to deliver the OEM quality you've come to expect.