Products › Sharp MXB42T Black Toner Cartridge Image 1 of 1 Sharp MXB42T Black Toner Cartridge $0.00 Genuine Sharp MXB42T Black Toner Cartridge, rated for approx. 20,000 pages.Compatible printers:Sharp MX-B427PWSharp MX-B427W Add To Cart Added! Genuine Sharp MXB42T Black Toner Cartridge, rated for approx. 20,000 pages.Compatible printers:Sharp MX-B427PWSharp MX-B427W