Laser FX-10 Fax Cartridge for Canon FAX L100,FAX L120,i-SENSYS L140,i-SENSYS L160,i-SENSYS MF4010,i-SENSYS MF4120,i-SENSYS MF4140,i-SENSYS MF4150,i-SENSYS MF4270,i-SENSYS MF4320,i-SENSYS MF4330,i-SENSYS MF4340,i-SENSYS MF4350,i-SENSYS MF4370,i-SENSYS MF4380,i-SENSYS MF4660,i-SENSYS MF4690 Printers. When you choose a Canon print or copy device, you're making an investment in quality, reliability and value. Like millions of delighted customers around the world, you know that you can trust Canon machines to deliver the highest levels of print clarity and consistency. Getting the best from those Canon machines is based on two very important things. The first is Canon's 6 stage Advanced Printing Process, the second is Canon's Genuine range of toners. These Genuine toners are designed specifically to match the technology of Canon machines aiding the smooth running of every stage in the Printing Process. So you can be confident that you're using products developed with one aim in mind to create vibrant quality prints time after time.