When print quality is of paramount importance, we always recommend using original Canon toner cartridges, like the 3022C002 in your printer.Offering less than half the estimated page yield of the 054H also available, the genuine Canon 054 magenta is available for a much lower price. As a magenta laser toner cartridge, the Canon 3022C002 still however offers around 1,200 prints, according to the manufacturer.You can use this standard capacity Canon 054 magenta toner cartridge in the i-SENSYS MF-641Cw and any other four-colour laser printer mentioned on this page.