12A6835 T52X HIGH YIELD PREBATE CARTRIDGE BLACK (20K)Lexmark 12A6835 Black Toner Cartridge Stay on top of the office's printing needs with this toner cartridge. With black toner, this cartridge produces sharp, clear logos, text and other designs, so you can easily print legible customer invoices, reports and other documents. This Lexmark toner cartridge features a yield of up of 20,000 sheets of paper, making it a great option for a busy office. Compatible with: Lexmark T520, 520 SBE, 520d, 520dn,