C4127A Black Toner - HP LJ 4000, 4050 Series

Features
The HP LaserJet C4127A maximum-capacity print cartridge is designed to work together with HP LaserJet 4000 and 4050 Series printers for professional-quality output. To best meet your printing needs, try our "A" cartridge for standard printing as it provides light to standard users with a 6,000 page yield solution at a low price.The 27A UltraPrecise Cartridge provides an alternative choice for low volume printing at 6,000 pages on average.

Extra features include Finer Dual Polymer Toner Particles which fuse at a lower temperature, resulting in more consistent output, smooth grayscales, and fine details. It also features a Helical Roller Drive Mechanism which creates a smooth fluid interface between the printer and print cartridge, thus eliminating banding and uneven gray areas.
The HPC4127A also features magnetic seals which provide leakproof sealing for added reliability and a cleaner work environment and a HP Pull Tab to ensure you're using genuine HP.

It is designed to work flawlessly with HP LaserJet specialty and everyday papers.