Enjoy tremendous savings with our Okidata Oki-C3520 toner cartridges and get the reliability and performance of a genuine Okidata ink cartridge. Each cartridge is designed specifically for your printer's functions and capabilities, ensuring easy installation into your Okidata printer. Each of our toner cartridges for Okidata Oki-C3520 printers is visually inspected and tested to ensure that our customers receive a reliable product and experience a hassle-free printing process. Our comprehensive 1-Year warranty covers all aspects of the cartridge, including print quality, performance, and page-yield. We value our customers and guarantee your satisfaction with our products. In the unlikely event that you are not entirely satisfied with your purchase, we will replace the cartridge or provide you a refund.