toner cartridges go through a rigorous quality control process to ensure maximum
results throughout the entire printing cycle. You may find that lower grade
replacement toner cartridges may have similar output quality when printing the
initial thousand pages, but will decrease in the sharpness lose its printing
density of its printouts near the middle or the end. This is caused by uneven
toner density distribution from the replacement toner cartridge. ION toner
cartridges are carefully manufactured to ensure even printing density. This
allows for a longer lifespan of your toner cartridge and consistency of
providing you High Definition Printouts for your personal and office printing
needs. COMPATIBILITY HP LaserJet Enterprise 500 color M551n HP LaserJet
Enterprise 500 color M551dn HP LaserJet Enterprise 500 color M551xh PAGE YIELD
6000pages
