The Xerox 006R01771 AltaLink B8145/B8155/B8170 is a black toner cartridge designed for Xerox printers. This compatible toner is suitable for models B8145 and B8155, and is manufactured by Xerox, a trusted brand in print technology. The laser print technology ensures high-quality and precise printing results, making it an efficient and reliable choice for your printing needs. Additionally, the toner cartridge comes with a California Prop 65 warning due to potential cancer and reproductive harm associated with it.