Kodak 2.2 - Manual (Page 107)

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KODAK HERO 2.2 All-in-One Printer
10. Insert the black ink cartridge into the printhead.
11. Press down on the ink cartridge until you hear a click.
12. Repeat steps 10 - 11 for the color ink cartridge.
13. Close the access door.
The printer detects the new printhead. Follow the instructions on the LCD to
calibrate your printer.