High Resolution Color Print Cartridge--Lexmark's color-delivery system uses specially formulated concentrated color ink for intense colors on plain paper. The new inks used in our printheads are concentrated so we use more color and less water. This means less paper distortion, quicker drying and sharper, clearer colors. For Lexmark Z11,Z31,3200, 5000, 5700, 5770, 7000, 7200, 7200V, Optra Color 40, 45, etc.