HP RB1-2127-000CN, Black, HEWLETT PACKARD C2021A HP C2001A Laserjet 4 HP LASERJET 4 PRINTER HP LASERJET 4M PLUS PRINTER ..., 1 pc(s) HP RB1-2127-000CN. Product colour: Black, Compatibility: HEWLETT PACKARD C2021A HP C2001A Laserjet 4 HP LASERJET 4 PRINTER HP LASERJET 4M PLUS PRINTER .... Quantity per pack: 1 pc(s)