duston 3x CE278A, 78A Black Toner compatible with HP Laserjet Pro M1536dnf MFP P1566 P1606dnContents of the toner cartridge approx. 2100 pages DIN A4 with 5% coverage Compatible with HP Laserjet Pro M1536dnf MFP P1566 P1606dn High quality of products guarantees effective and trouble free work The warranty is valid until all usable toner in the laser print cartridge has been used up In each toner, the photosensitive roller, small scraper, magnetic roller and entire toner storage are exchanged, which ensures high print quality and blackening