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 B380 IF. Our Canon Fax B380 IF toner cartridges are made from the highest quality materials. Our Canon Fax B380 IF 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 B380 IF does not void your printer's warranty.