Our discount compatible Canon PC-790 toner cartridges will print with the same consistency and reliability as your original Canon printer cartridge. To ensure the best printing experience, we engineer our toner cartridges based on the specifications of your original Canon cartridges. To certify that these discount toner cartridges for Canon PC-790 printers perform up to industry standards for excellence, we test every cartridge before shipment. All products include a full 1-Year warranty and 100% customer satisfaction guarantee. We also provide lifetime customer support, thus providing our customers with complete peace of mind.