The compatible Lexmark X4850 ink-jet cartridges from LD Products are Guaranteed to meet or exceed the print quality of the OEM Lexmark X4850 inkjet cartridges. Purchasing our compatible Lexmark X4850 ink cartridges is an excellent way to save money without sacrificing quality. Our Lexmark X4850 compatible ink cartridges have a 'Lifetime Guarantee'. The use of our compatible ink for the Lexmark X4850 does not void your printer's warranty. We also carry OEM cartridges for your Lexmark X4850 printer.