Science and Technology, Society, and Business and Economy in Sicily, Italy
Even the best cartucce compatibili will eventually seem to run out of powder or ink. You can, fortunately, extend the life of an apparently empty cartridge by shaking it well although not too well as to make a mess of it. You should first remove the cartridge from the printer’s bay, cover the end where the ink flows to the printer with a piece of tape, and shake it for 15 to 20 times.
This will redistribute the remaining toner or ink in the cartridge, which means that a few more pages can be printed from it. But when the cartucce compatibili are truly out of toner or ink, then you have to replace them ASAP.