Instructions to do a semi full reset with HP C5280 Photosmart:

1. Press the buttons together: "print photo" + "red eye removal"
2. Printer will ask you to enter a special combo:
3. Press "red eye", "print photo", "red eye" in sequence
4. Scroll down until you find resets menu - press ok <-- touches droite et gauche du pavé
5. Scroll down until you find semi-full reset -press ok <-- touches droite et gauche du pavé
6. Photosmart C5280 should turn off, wait for 2 minutes before starting the printer

==> Testé sur une C5390 : OK.