Canon Genuine Toner produces high-quality, monochrome and color output for all your home and office needs, that you can be proud of. Look for the Canon Logo and the Canon hologram, which should shimmer when moved back and forth. Don’t be fooled by imitators. Use of non-canon toner cartridges or refilled toner cartridges can cause damage to your printer and may affect the limited warranty for the product. For use with MF810Cdn, MF820Cdn laser printers. Black: yields up to 12,000 pages / Cyan, Magenta, Yellow: yields up to 7,300 pages each (ISO / IEC Standard)