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 PC-400. Our Canon PC-400toner cartridges are made from the highest quality materials and are manufactured in an ISO-9001 certified factory. Our Canon PC-400 high yield laser toner cartridge have a 'One Year 100% Satisfaction Guarantee'. The use of our premium compatible laser toner cartridges for the Canon PC-400 does not void your printer's warranty.