Reman.
95 (C8766WN) Tri-Color Cartridge compatible with:
DeskJet 5740, 5740xi, 6520, 6520xi, 6540, 6540dt, 6540xi, 6840, 6840dt, 6840xi, 9800
Photosmart 325, 325v, 325xi, 375, 375v, 2610, 2610v, 2610xi, 2710, 2710xi, 8150
The use of compatible supplies does not void your printer warranty.