The Brother MFC-7420 laser toner from E-Z ink Products is a 100% new compatible laser toner that is Guaranteed to meet or exceed the print quality of the OEM (Original Equipment Manufacturer) Brother MFC-7420 laser toner. We also carry the compatible DR350 drum unit for the Brother MFC-7420. You can replace the TN350 laser toner without replacing the DR350 drum unit. You will need to replace the DR350 drum unit occasionally. Purchasing our Brother MFC-7420 laser toner is an excellent way to save money without sacrificing quality. Our Brother MFC-7420 laser toner cartridge has a '100% Satisfaction 100% Quality & Satisfaction Guarantee'. The use of our compatible laser toner and drum for the Brother MFC-7420 does not void your printer's warranty. OEM laser toner cartridges and drums are also available for your Brother MFC-7420.