A:Answer Lack of use is a case of ink overspray droplets drying out and covering or blocking the print face (the orafices are tiny) rather than actually losing the ink from evaporation. Some shake the tanks to be sure the ink is loose and mixed first-beware you make fling ink where it is not wanted, but I have done this on HP cartridges: remove the cartridges & use a small "bunny tail" wad of soft tissue (not type with lotion) or toilet paper that I wet with plain water and dab to dissolve dried ink off print face, or wipe gently if stubborn. Worst-case scenario, in a pinch, I once resorted to using some 60% rubbing alcohol on the tissue for one badly caked cartridge with no ill effect-but be gentle-let the water have time to melt the dried ink. Dab dry or let air dry, reinstall the cartridges, align them or run a test page to see if working. If this doesn't do it, they may not be salvagable and need to be replaced. Of course, I make no assurances, guarantees or warrant this method works in all cases or is fail-safe, fool-proof or approved by any manufacturer, nor am I responsible for any losses incurred, actual, incidental, consequential or otherwise.