Genuine Brother inks - like this HC-05BK - give a quality of print that is quite simply unobtainable by any alternative products. The components of the HC-05BK come fresh from Brother and deliver optimum performance from the moment this black ink cartridge is installed.Brother estimate that each HC-05BK ink cartridge will happily roll off 30,000 prints in its lifetime, meaning that you seldom have to change the unit. Compatible with the Brother HL-S7000 series of black and white inkjet printers, the HC-05BK is a versatile product that fits nicely into the majority of office environments.