HP 646A Magenta Remanufactured Toner Alternative to HP Home / Remanufactured / Compatible / HP Remanufactured / Compatible / HP 646A Magenta Remanufactured Toner Alternative to HP Categories: HP Remanufactured / Compatible, Original Laser Toner Cartridge, Remanufactured / Compatible Description Description Compatible with Colour LaserJet Enterprise CM4540 MFP, Colour LaserJet Enterprise CM4540f MFP, Colour LaserJet Enterprise CM4540fskm MFP. Page yield of 12,500 pages. 646A / cf033a Related products XEROX CANADA INC. Brother TN850 Black Toner Cartridge, High Yield $200.00