There are only a few guidelines you can follow to get more out of your ink cartridges.
Firstly, buy compatible ink cartridges you can trust. Today’s original ink cartridges contain only a fraction of the ink in their tank that they can hold, and are more expensive than prices for equivalent ink cartridges in previous years. It’s much more cost-effective and ecological to buy good quality compatible ink cartridges that will last longer naturally, than to buy original ink cartridges.
Secondly, store them correctly. If you can, store your cartridges in your printer. Outside of a printer, ink cartridges can begin to dry out. If your ink cartridges cannot be stored in your printer, please store them in an airtight plastic container, making sure to keep the nozzles upright. Make sure nothing touches the nozzles. Don’t store them in a bag as you risk damaging the nozzles. Ink cartridges can be stored at temperatures between -15°C and 35°C (5°F and 95°F).
Thirdly (and most importantly), make sure to print with your ink cartridges at least once a month, preferably twice a month. This is to keep them from drying out. After a month with no use, you unfortunately can’t guarantee that your ink cartridges won’t be dried out.