Kodak 9.1 - Manual (Page 125)

www.kodak.com/go/aiosupport 119
KODAK HERO 9.1 All-in-One Printer
10. Insert the black ink cartridge into the printhead.
11. Press down on the ink cartridge tab until you hear a click.
12. Repeat steps 10 - 11 for the color ink cartridge.