Our Canon Compatible Ink Cartridges for the Canon BJC-820 are ISO-9001 certified. Quality and Satisfaction are always Guaranteed! Best inkjet cartridge replacements and best value for your Canon BJC-820. Why buy a brand new Canon ink-jet cartridge or a remanufactured ink cartridge when you can get perfect quality out of a brand new generic inkjet cartridge at a fraction of the cost? We guarantee that you will get the same high quality prints on your Canon BJC-820 as you would if used genuine Canon brand BJI-643 ink-cartridges! 100% satisfaction guaranteed!