Canon C-EXV 33 black toner Cartridge's is Compatible with Canon ir2, 2520, 2520i, 2525, 2525i, 2530, 2530i brands and specifically designed for Canon Printer IR 522520 to deliver fast, accurate laser printing, This giving your documents a high quality print finish, it produces sharp and high quality print finish with capacity 0of printing 14,600 pages. High quality printing Best for schools, business and homes