Print high quality documents with the hp 504a toner cartridge in black, which is compatible with the hp laserjet cp3525 and cm3530 printers. This toner cartridge features hp colorsphere technology, which ensures you always get the highest quality results. This toner cartridge is also equipped with interactive intelligence, which lets you track printer usage and receive alerts when supplies are low. Features black 5000 page yield *hps inkjet print cartridges, ink cartridges and printheads are warranted to be free from defects in materials and workmanship during the period of the warranty. The average cartridge yields 5000 pages, making it an economical choice. Get consistent professional results with the hp 504a laserjet toner cartridge in black.