Hp 8600, I'm not familiar with that printer. I only know of the 8610, 8620, & 8630, all are great printers. You can use the HP 950 (black ink only) and HP 951 which includes 3 cartridges (Cyan-Blue, Magenta-Pink, Yellow). If you buy the HP 950XL or HP951XL they contain more ink inside them (almost double) and they will also fit inside of those printers that I listed above.