With an estimated yield of 10,500 pages (based on 5% coverage), this Linkyo replacement toner cartridge costs 70% less than the original HP toner cartridge. Linkyo replacement toner cartridges are highly compatible with your HP LaserJet Enterprise M604dn Printer and do not void your printer's warranty. Buy Linkyo toner cartridges online to receive a 100% Satisfaction Guarantee on our replacement toner cartridges.