... continual ink supply system 1).Suit for hp,canon,brother,epson,samsung,dell,lexmark,etc2) 500/900 Pages yield 3) 1 ... .53 black degree and 4% toner waste rate, able to print parchment paper, performs as the original4 ... ink supply system (CISS),suit for hp,canon,samsung,brother,epson,dell,lexmark,ciss system