All of Toner Refill Store's premium compatible Canon toner cartridges contain brand new parts and are 100% guaranteed to meet or exceed your expections and surpass the print quality of the OEM (Original Equipment Manufacturer) Canon Fax L4500. Our Canon Fax L4500 toner cartridges are made from the highest quality materials. Our Canon Fax L4500 high yield laser toner cartridge have a 'One Year 100% Satisfaction Guarantee'. The use of our premium compatible laser toner cartridges for the Canon Fax L4500 does not void your printer's warranty.