Canon consumables genuinely make a difference. When you choose a Canon printer, you?re investing in quality, reliability and value. Canon ingenuity has earned many patents for its toner bottles, cartridges, drums, parts and toner. GENUINE Canon supplies are designed specifically for Canon devices, to help ensure optimal performance and outstanding output time after time. GENUINE Canon Toner 051 Black yields approximately 1,700 pages (ISO / IEC Standards).