TrueImageTech.com is proud to offer wallet friendly prices on high quality toner cartridges for Samsung SCX-4521 printer. Our Samsung SCX-4521 toner cartridges are precisely engineered with brand new parts at our manufacturing facility to ensure the same print quality as OEM cartridges.We stand behind all of our products, and we make it better with our 100% satisfaction guarantee for all of our products. The use of our compatible laser toner for the Samsung SCX-4521 does not void your printer's warranty. OEM laser toner cartridges is also available for your Samsung SCX-4521 printer.